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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-26 13:17:21 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-26 13:17:21 -0600
commitdfe289850f068f19ba4a83ab4e7e22a7e09c13c9 (patch)
treec297348a55df66c571de4525646e0b9762427353 /khtml/khtml_caret.cpp
parentb7658a0d5eca24a9d37c6e04f88298ef02389db0 (diff)
downloadtdelibs-dfe289850f068f19ba4a83ab4e7e22a7e09c13c9.tar.gz
tdelibs-dfe289850f068f19ba4a83ab4e7e22a7e09c13c9.zip
Rename a number of libraries and executables to avoid conflicts with KDE4
Diffstat (limited to 'khtml/khtml_caret.cpp')
-rw-r--r--khtml/khtml_caret.cpp2664
1 files changed, 0 insertions, 2664 deletions
diff --git a/khtml/khtml_caret.cpp b/khtml/khtml_caret.cpp
deleted file mode 100644
index 9b819ee6c..000000000
--- a/khtml/khtml_caret.cpp
+++ /dev/null
@@ -1,2664 +0,0 @@
-/* This file is part of the KDE project
- *
- * Copyright (C) 2003-2004 Leo Savernik <l.savernik@aon.at>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-
-#include "khtml_caret_p.h"
-
-#include "html/html_documentimpl.h"
-
-namespace khtml {
-
-/** Flags representing the type of advance that has been made.
- * @param LeftObject a render object was left and an ascent to its parent has
- * taken place
- * @param AdvancedToSibling an actual advance to a sibling has taken place
- * @param EnteredObject a render object was entered by descending into it from
- * its parent object.
- */
-enum ObjectAdvanceState {
- LeftObject = 0x01, AdvancedToSibling = 0x02, EnteredObject = 0x04
-};
-
-/** All possible states that may occur during render object traversal.
- * @param OutsideDescending outside of the current object, ready to descend
- * into children
- * @param InsideDescending inside the current object, descending into
- * children
- * @param InsideAscending inside the current object, ascending to parents
- * @param OutsideAscending outsie the current object, ascending to parents
- */
-enum ObjectTraversalState {
- OutsideDescending, InsideDescending, InsideAscending, OutsideAscending
-};
-
-/** Traverses the render object tree in a fine granularity.
- * @param obj render object
- * @param trav object traversal state
- * @param toBegin traverse towards beginning
- * @param base base render object which this method must not advance beyond
- * (0 means document)
- * @param state object advance state (enum ObjectAdvanceState)
- * @return the render object according to the state. May be the same as \c obj
- */
-static RenderObject* traverseRenderObjects(RenderObject *obj,
- ObjectTraversalState &trav, bool toBegin, RenderObject *base,
- int &state)
-{
- RenderObject *r;
- switch (trav) {
- case OutsideDescending:
- trav = InsideDescending;
- break;
- case InsideDescending:
- r = toBegin ? obj->lastChild() : obj->firstChild();
- if (r) {
- trav = OutsideDescending;
- obj = r;
- state |= EnteredObject;
- } else {
- trav = InsideAscending;
- }
- break;
- case InsideAscending:
- trav = OutsideAscending;
- break;
- case OutsideAscending:
- r = toBegin ? obj->previousSibling() : obj->nextSibling();
- if (r) {
- trav = OutsideDescending;
- state |= AdvancedToSibling;
- } else {
- r = obj->parent();
- if (r == base) r = 0;
- trav = InsideAscending;
- state |= LeftObject;
- }
- obj = r;
- break;
- }/*end switch*/
-
- return obj;
-}
-
-/** Like RenderObject::objectBelow, but confined to stay within \c base.
- * @param obj render object to begin with
- * @param trav object traversal state, will be reset within this function
- * @param base base render object (0: no base)
- */
-static inline RenderObject *renderObjectBelow(RenderObject *obj, ObjectTraversalState &trav, RenderObject *base)
-{
- trav = InsideDescending;
- int state; // we don't need the state, so we don't initialize it
- RenderObject *r = obj;
- while (r && trav != OutsideDescending) {
- r = traverseRenderObjects(r, trav, false, base, state);
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "renderObjectBelow: r " << r << " trav " << trav << endl;
-#endif
- }
- trav = InsideDescending;
- return r;
-}
-
-/** Like RenderObject::objectAbove, but confined to stay within \c base.
- * @param obj render object to begin with
- * @param trav object traversal state, will be reset within this function
- * @param base base render object (0: no base)
- */
-static inline RenderObject *renderObjectAbove(RenderObject *obj, ObjectTraversalState &trav, RenderObject *base)
-{
- trav = OutsideAscending;
- int state; // we don't need the state, so we don't initialize it
- RenderObject *r = obj;
- while (r && trav != InsideAscending) {
- r = traverseRenderObjects(r, trav, true, base, state);
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "renderObjectAbove: r " << r << " trav " << trav << endl;
-#endif
- }
- trav = InsideAscending;
- return r;
-}
-
-/** Checks whether the given inline box matches the IndicatedFlows policy
- * @param box inline box to test
- * @return true on match
- */
-static inline bool isIndicatedInlineBox(InlineBox *box)
-{
- // text boxes are never indicated.
- if (box->isInlineTextBox()) return false;
- RenderStyle *s = box->object()->style();
- return s->borderLeftWidth() || s->borderRightWidth()
- || s->borderTopWidth() || s->borderBottomWidth()
- || s->paddingLeft().value() || s->paddingRight().value()
- || s->paddingTop().value() || s->paddingBottom().value()
- // ### Can inline elements have top/bottom margins? Couldn't find
- // it in the CSS 2 spec, but Mozilla ignores them, so we do, too.
- || s->marginLeft().value() || s->marginRight().value();
-}
-
-/** Checks whether the given render object matches the IndicatedFlows policy
- * @param r render object to test
- * @return true on match
- */
-static inline bool isIndicatedFlow(RenderObject *r)
-{
- RenderStyle *s = r->style();
- return s->borderLeftStyle() != BNONE || s->borderRightStyle() != BNONE
- || s->borderTopStyle() != BNONE || s->borderBottomStyle() != BNONE
-// || s->paddingLeft().value() || s->paddingRight().value()
-// || s->paddingTop().value() || s->paddingBottom().value()
-// || s->marginLeft().value() || s->marginRight().value()
- || s->hasClip() || s->hidesOverflow()
- || s->backgroundColor().isValid() || s->backgroundImage();
-}
-
-/** Advances to the next render object, taking into account the current
- * traversal state.
- *
- * @param r render object
- * @param trav object traversal state
- * @param toBegin @p true, advance towards beginning, @p false, advance toward end
- * @param base base render object which this method must not advance beyond
- * (0 means document)
- * @param state object advance state (enum ObjectAdvanceState) (unchanged
- * on LeafsOnly)
- * @return a pointer to the render object which we advanced to,
- * or 0 if the last possible object has been reached.
- */
-static RenderObject *advanceObject(RenderObject *r,
- ObjectTraversalState &trav, bool toBegin,
- RenderObject *base, int &state)
-{
-
- ObjectTraversalState origtrav = trav;
- RenderObject *a = traverseRenderObjects(r, trav, toBegin, base, state);
-
- bool ignoreOutsideDesc = toBegin && origtrav == OutsideAscending;
-
- // render object and traversal state at which look ahead has been started
- RenderObject *la = 0;
- ObjectTraversalState latrav = trav;
- ObjectTraversalState lasttrav = origtrav;
-
- while (a) {
-#if DEBUG_CARETMODE > 5
-kdDebug(6200) << "a " << a << " trav " << trav << endl;
-#endif
- if (a->element()) {
-#if DEBUG_CARETMODE > 4
-kdDebug(6200) << "a " << a << " trav " << trav << " origtrav " << origtrav << " ignoreOD " << ignoreOutsideDesc << endl;
-#endif
- if (toBegin) {
-
- switch (origtrav) {
- case OutsideDescending:
- if (trav == InsideAscending) return a;
- if (trav == OutsideDescending) return a;
- break;
- case InsideDescending:
- if (trav == OutsideDescending) return a;
- // fall through
- case InsideAscending:
- if (trav == OutsideAscending) return a;
- break;
- case OutsideAscending:
- if (trav == OutsideAscending) return a;
- if (trav == InsideAscending && lasttrav == InsideDescending) return a;
- if (trav == OutsideDescending && !ignoreOutsideDesc) return a;
- // ignore this outside descending position, as it effectively
- // demarkates the same position, but remember it in case we fall off
- // the document.
- la = a; latrav = trav;
- ignoreOutsideDesc = false;
- break;
- }/*end switch*/
-
- } else {
-
- switch (origtrav) {
- case OutsideDescending:
- if (trav == InsideAscending) return a;
- if (trav == OutsideDescending) return a;
- break;
- case InsideDescending:
-// if (trav == OutsideDescending) return a;
- // fall through
- case InsideAscending:
-// if (trav == OutsideAscending) return a;
-// break;
- case OutsideAscending:
- // ### what if origtrav == OA, and immediately afterwards trav
- // becomes OD? In this case the effective position hasn't changed ->
- // the caret gets stuck. Otherwise, it apparently cannot happen in
- // real usage patterns.
- if (trav == OutsideDescending) return a;
- if (trav == OutsideAscending) {
- if (la) return la;
- // starting lookahead here. Remember old object in case we fall off
- // the document.
- la = a; latrav = trav;
- }
- break;
- }/*end switch*/
-
- }/*end if*/
- }/*end if*/
-
- lasttrav = trav;
- a = traverseRenderObjects(a, trav, toBegin, base, state);
- }/*wend*/
-
- if (la) trav = latrav, a = la;
- return a;
-
-}
-
-/** Check whether the current render object is unsuitable in caret mode handling.
- *
- * Some render objects cannot be handled correctly in caret mode. These objects
- * are therefore considered to be unsuitable. The null object is suitable, as
- * it denotes reaching the end.
- * @param r current render object
- * @param trav current traversal state
- */
-static inline bool isUnsuitable(RenderObject *r, ObjectTraversalState trav)
-{
- if (!r) return false;
- return r->isTableCol() || r->isTableSection() || r->isTableRow()
- || (r->isText() && static_cast<RenderText *>(r)->inlineTextBoxCount() == 0);
- ;
- Q_UNUSED(trav);
-}
-
-/** Advances to the next render object, taking into account the current
- * traversal state, but skipping render objects which are not suitable for
- * having placed the caret into them.
- * @param r render object
- * @param trav object traversal state (unchanged on LeafsOnly)
- * @param toBegin @p true, advance towards beginning, @p false, advance toward end
- * @param base base render object which this method must not advance beyond
- * (0 means document)
- * @param state object advance state (enum ObjectAdvanceState) (unchanged
- * on LeafsOnly)
- * @return a pointer to the advanced render object or 0 if the last possible
- * object has been reached.
- */
-static inline RenderObject *advanceSuitableObject(RenderObject *r,
- ObjectTraversalState &trav, bool toBegin,
- RenderObject *base, int &state)
-{
- do {
- r = advanceObject(r, trav, toBegin, base, state);
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "after advanceSWP: r " << r << " trav " << trav << " toBegin " << toBegin << endl;
-#endif
- } while (isUnsuitable(r, trav));
- return r;
-}
-
-/**
- * Returns the next leaf node.
- *
- * Using this function delivers leaf nodes as if the whole DOM tree
- * were a linear chain of its leaf nodes.
- * @param r dom node
- * @param baseElem base element not to search beyond
- * @return next leaf node or 0 if there are no more.
- */
-static NodeImpl *nextLeafNode(NodeImpl *r, NodeImpl *baseElem)
-{
- NodeImpl *n = r->firstChild();
- if (n) {
- while (n) { r = n; n = n->firstChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
- n = r->nextSibling();
- if (n) {
- r = n;
- while (n) { r = n; n = n->firstChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
-
- n = r->parentNode();
- if (n == baseElem) n = 0;
- while (n) {
- r = n;
- n = r->nextSibling();
- if (n) {
- r = n;
- n = r->firstChild();
- while (n) { r = n; n = n->firstChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
- n = r->parentNode();
- if (n == baseElem) n = 0;
- }/*wend*/
- return 0;
-}
-
-#if 0 // currently not used
-/** (Not part of the official DOM)
- * Returns the previous leaf node.
- *
- * Using this function delivers leaf nodes as if the whole DOM tree
- * were a linear chain of its leaf nodes.
- * @param r dom node
- * @param baseElem base element not to search beyond
- * @return previous leaf node or 0 if there are no more.
- */
-static NodeImpl *prevLeafNode(NodeImpl *r, NodeImpl *baseElem)
-{
- NodeImpl *n = r->firstChild();
- if (n) {
- while (n) { r = n; n = n->firstChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
- n = r->previousSibling();
- if (n) {
- r = n;
- while (n) { r = n; n = n->firstChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
-
- n = r->parentNode();
- if (n == baseElem) n = 0;
- while (n) {
- r = n;
- n = r->previousSibling();
- if (n) {
- r = n;
- n = r->lastChild();
- while (n) { r = n; n = n->lastChild(); }
- return const_cast<NodeImpl *>(r);
- }/*end if*/
- n = r->parentNode();
- if (n == baseElem) n = 0;
- }/*wend*/
- return 0;
-}
-#endif
-
-/** Maps a DOM Range position to the corresponding caret position.
- *
- * The offset boundary is not checked for validity.
- * @param node DOM node
- * @param offset zero-based offset within node
- * @param r returns render object (may be 0 if DOM node has no render object)
- * @param r_ofs returns the appropriate offset for the found render object r
- * @param outside returns true when offset is applied to the outside of
- * \c r, or false for the inside.
- * @param outsideEnd return true when the caret position is at the outside end.
- */
-void /*KDE_NO_EXPORT*/ mapDOMPosToRenderPos(NodeImpl *node, long offset,
- RenderObject *&r, long &r_ofs, bool &outside, bool &outsideEnd)
-{
- if (node->nodeType() == Node::TEXT_NODE) {
- outside = false;
- outsideEnd = false;
- r = node->renderer();
- r_ofs = offset;
- } else if (node->nodeType() == Node::ELEMENT_NODE || node->nodeType() == Node::DOCUMENT_NODE) {
-
- // Though offset points between two children, attach it to the visually
- // most suitable one (and only there, because the mapping must stay bijective)
- if (node->firstChild()) {
- outside = true;
- NodeImpl *child = offset <= 0 ? node->firstChild()
- // childNode is expensive
- : node->childNode((unsigned long)offset);
- // index was child count or out of bounds
- bool atEnd = !child;
-#if DEBUG_CARETMODE > 5
- kdDebug(6200) << "mapDTR: child " << child << "@" << (child ? child->nodeName().string() : TQString::null) << " atEnd " << atEnd << endl;
-#endif
- if (atEnd) child = node->lastChild();
-
- r = child->renderer();
- r_ofs = 0;
- outsideEnd = atEnd;
-
- // Outside text nodes most likely stem from a continuation. Seek
- // the enclosing continued render object and use this one instead.
- if (r && child->nodeType() == Node::TEXT_NODE) {
- r = r->parent();
- RenderObject *o = node->renderer();
- while (o->continuation() && o->continuation() != r)
- o = o->continuation();
- if (!r || o->continuation() != r) {
- r = child->renderer();
- }
- }/*end if*/
-
- // BRs cause troubles. Returns the previous render object instead,
- // giving it the attributes outside, outside end.
- if (r && r->isBR()) {
- r = r->objectAbove();
- outsideEnd = true;
- }/*end if*/
-
- } else {
- // Element has no children, treat offset to be inside the node.
- outside = false;
- outsideEnd = false;
- r = node->renderer();
- r_ofs = 0; // only offset 0 possible
- }
-
- } else {
- r = 0;
- kdWarning() << k_funcinfo << "Mapping from nodes of type " << node->nodeType()
- << " not supported!" << endl;
- }
-}
-
-/** Maps a caret position to the corresponding DOM Range position.
- *
- * @param r render object
- * @param r_ofs offset within render object
- * @param outside true when offset is interpreted to be on the outside of
- * \c r, or false if on the inside.
- * @param outsideEnd true when the caret position is at the outside end.
- * @param node returns DOM node
- * @param offset returns zero-based offset within node
- */
-void /*KDE_NO_EXPORT*/ mapRenderPosToDOMPos(RenderObject *r, long r_ofs,
- bool outside, bool outsideEnd, NodeImpl *&node, long &offset)
-{
- node = r->element();
- Q_ASSERT(node);
-#if DEBUG_CARETMODE > 5
- kdDebug(6200) << "mapRTD: r " << r << "@" << (r ? r->renderName() : TQString::null) << (r && r->element() ? TQString(".node ") + TQString::number((unsigned)r->element(),16) + "@" + r->element()->nodeName().string() : TQString::null) << " outside " << outside << " outsideEnd " << outsideEnd << endl;
-#endif
- if (node->nodeType() == Node::ELEMENT_NODE || node->nodeType() == Node::TEXT_NODE) {
-
- if (outside) {
- NodeImpl *parent = node->parent();
-
- // If this is part of a continuation, use the actual node as the parent,
- // and the first render child as the node.
- if (r != node->renderer()) {
- RenderObject *o = node->renderer();
- while (o->continuation() && o->continuation() != r)
- o = o->continuation();
- if (o->continuation() == r) {
- parent = node;
- // ### What if the first render child does not map to a child of
- // the continued node?
- node = r->firstChild() ? r->firstChild()->element() : node;
- }
- }/*end if*/
-
- if (!parent) goto inside;
-
- offset = (long)node->nodeIndex() + outsideEnd;
- node = parent;
-#if DEBUG_CARETMODE > 5
- kdDebug(6200) << node << "@" << (node ? node->nodeName().string() : TQString::null) << " offset " << offset << endl;
-#endif
- } else { // !outside
-inside:
- offset = r_ofs;
- }
-
- } else {
- offset = 0;
- kdWarning() << k_funcinfo << "Mapping to nodes of type " << node->nodeType()
- << " not supported!" << endl;
- }
-}
-
-/** Make sure the given node is a leaf node. */
-static inline void ensureLeafNode(NodeImpl *&node, NodeImpl *base)
-{
- if (node && node->hasChildNodes()) node = nextLeafNode(node, base);
-}
-
-/** Converts a caret position to its respective object traversal state.
- * @param outside whether the caret is outside the object
- * @param atEnd whether the caret position is at the end
- * @param toBegin \c true when advancing towards the beginning
- * @param trav returns the corresponding traversal state
- */
-static inline void mapRenderPosToTraversalState(bool outside, bool atEnd,
- bool toBegin, ObjectTraversalState &trav)
-{
- if (!outside) atEnd = !toBegin;
- if (!atEnd ^ toBegin)
- trav = outside ? OutsideDescending : InsideDescending;
- else
- trav = outside ? OutsideAscending : InsideAscending;
-}
-
-/** Converts a traversal state to its respective caret position
- * @param trav object traversal state
- * @param toBegin \c true when advancing towards the beginning
- * @param outside whether the caret is outside the object
- * @param atEnd whether the caret position is at the end
- */
-static inline void mapTraversalStateToRenderPos(ObjectTraversalState trav,
- bool toBegin, bool &outside, bool &atEnd)
-{
- outside = false;
- switch (trav) {
- case OutsideDescending: outside = true; // fall through
- case InsideDescending: atEnd = toBegin; break;
- case OutsideAscending: outside = true; // fall through
- case InsideAscending: atEnd = !toBegin; break;
- }
-}
-
-/** Finds the next node that has a renderer.
- *
- * Note that if the initial @p node has a renderer, this will be returned,
- * regardless of the caret advance policy.
- * Otherwise, for the next nodes, only leaf nodes are considered.
- * @param node node to start with, will be updated accordingly
- * @param offset offset of caret within \c node
- * @param base base render object which this method must not advance beyond
- * (0 means document)
- * @param r_ofs return the caret offset within the returned renderer
- * @param outside returns whether offset is to be interpreted to the outside
- * (true) or the inside (false) of the render object.
- * @param outsideEnd returns whether the end of the outside position is meant
- * @return renderer or 0 if no following node has a renderer.
- */
-static RenderObject* findRenderer(NodeImpl *&node, long offset,
- RenderObject *base, long &r_ofs,
- bool &outside, bool &outsideEnd)
-{
- if (!node) return 0;
- RenderObject *r;
- mapDOMPosToRenderPos(node, offset, r, r_ofs, outside, outsideEnd);
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "findRenderer: node " << node << " " << (node ? node->nodeName().string() : TQString::null) << " offset " << offset << " r " << r << "[" << (r ? r->renderName() : TQString::null) << "] r_ofs " << r_ofs << " outside " << outside << " outsideEnd " << outsideEnd << endl;
-#endif
- if (r) return r;
- NodeImpl *baseElem = base ? base->element() : 0;
- while (!r) {
- node = nextLeafNode(node, baseElem);
- if (!node) break;
- r = node->renderer();
- if (r) r_ofs = offset;
- }
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "1r " << r << endl;
-#endif
- ObjectTraversalState trav;
- int state; // not used
- mapRenderPosToTraversalState(outside, outsideEnd, false, trav);
- if (r && isUnsuitable(r, trav)) {
- r = advanceSuitableObject(r, trav, false, base, state);
- mapTraversalStateToRenderPos(trav, false, outside, outsideEnd);
- if (r) r_ofs = r->minOffset();
- }
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "2r " << r << endl;
-#endif
- return r;
-}
-
-/** returns a suitable base element
- * @param caretNode current node containing caret.
- */
-static ElementImpl *determineBaseElement(NodeImpl *caretNode)
-{
- // ### for now, only body is delivered for html documents,
- // and 0 for xml documents.
-
- DocumentImpl *doc = caretNode->getDocument();
- if (!doc) return 0; // should not happen, but who knows.
-
- if (doc->isHTMLDocument())
- return static_cast<HTMLDocumentImpl *>(doc)->body();
-
- return 0;
-}
-
-// == class CaretBox implementation
-
-#if DEBUG_CARETMODE > 0
-void CaretBox::dump(TQTextStream &ts, const TQString &ind) const
-{
- ts << ind << "b@" << _box;
-
- if (_box) {
- ts << "<" << _box->object() << ":" << _box->object()->renderName() << ">";
- }/*end if*/
-
- ts << " " << _x << "+" << _y << "+" << _w << "*" << _h;
-
- ts << " cb@" << cb;
- if (cb) ts << ":" << cb->renderName();
-
- ts << " " << (_outside ? (outside_end ? "oe" : "o-") : "i-");
-// ts << endl;
-}
-#endif
-
-// == class CaretBoxLine implementation
-
-#if DEBUG_CARETMODE > 0
-# define DEBUG_ACIB 1
-#else
-# define DEBUG_ACIB DEBUG_CARETMODE
-#endif
-void CaretBoxLine::addConvertedInlineBox(InlineBox *box, SeekBoxParams &sbp) /*KDE_NO_EXPORT*/
-{
- // Generate only one outside caret box between two elements. If
- // coalesceOutsideBoxes is true, generating left outside boxes is inhibited.
- bool coalesceOutsideBoxes = false;
- CaretBoxIterator lastCoalescedBox;
- for (; box; box = box->nextOnLine()) {
-#if DEBUG_ACIB
-kdDebug(6200) << "box " << box << endl;
-kdDebug(6200) << "box->object " << box->object() << endl;
-kdDebug(6200) << "x " << box->m_x << " y " << box->m_y << " w " << box->m_width << " h " << box->m_height << " baseline " << box->m_baseline << " ifb " << box->isInlineFlowBox() << " itb " << box->isInlineTextBox() << " rlb " << box->isRootInlineBox() << endl;
-#endif
- // ### Why the hell can object() ever be 0?!
- if (!box->object()) continue;
-
- RenderStyle *s = box->object()->style(box->m_firstLine);
- // parent style for outside caret boxes
- RenderStyle *ps = box->parent() && box->parent()->object()
- ? box->parent()->object()->style(box->parent()->m_firstLine)
- : s;
-
- if (box->isInlineFlowBox()) {
-#if DEBUG_ACIB
-kdDebug(6200) << "isinlineflowbox " << box << endl;
-#endif
- InlineFlowBox *flowBox = static_cast<InlineFlowBox *>(box);
- bool rtl = ps->direction() == RTL;
- const TQFontMetrics &pfm = ps->fontMetrics();
-
- if (flowBox->includeLeftEdge()) {
- // If this box is to be coalesced with the outside end box of its
- // predecessor, then check if it is the searched box. If it is, we
- // substitute the outside end box.
- if (coalesceOutsideBoxes) {
- if (sbp.equalsBox(flowBox, true, false)) {
- sbp.it = lastCoalescedBox;
- Q_ASSERT(!sbp.found);
- sbp.found = true;
- }
- } else {
- addCreatedFlowBoxEdge(flowBox, pfm, true, rtl);
- sbp.check(preEnd());
- }
- }/*end if*/
-
- if (flowBox->firstChild()) {
-#if DEBUG_ACIB
-kdDebug(6200) << "this " << this << " flowBox " << flowBox << " firstChild " << flowBox->firstChild() << endl;
-kdDebug(6200) << "== recursive invocation" << endl;
-#endif
- addConvertedInlineBox(flowBox->firstChild(), sbp);
-#if DEBUG_ACIB
-kdDebug(6200) << "== recursive invocation end" << endl;
-#endif
-}
- else {
- addCreatedFlowBoxInside(flowBox, s->fontMetrics());
- sbp.check(preEnd());
- }
-
- if (flowBox->includeRightEdge()) {
- addCreatedFlowBoxEdge(flowBox, pfm, false, rtl);
- lastCoalescedBox = preEnd();
- sbp.check(lastCoalescedBox);
- coalesceOutsideBoxes = true;
- }
-
- } else if (box->isInlineTextBox()) {
-#if DEBUG_ACIB
-kdDebug(6200) << "isinlinetextbox " << box << (box->object() ? TQString(" contains \"%1\"").arg(TQConstString(static_cast<RenderText *>(box->object())->str->s+box->minOffset(), kMin(box->maxOffset() - box->minOffset(), 15L)).string()) : TQString::null) << endl;
-#endif
- caret_boxes.append(new CaretBox(box, false, false));
- sbp.check(preEnd());
- // coalescing has been interrupted
- coalesceOutsideBoxes = false;
-
- } else {
-#if DEBUG_ACIB
-kdDebug(6200) << "some replaced or what " << box << endl;
-#endif
- // must be an inline-block, inline-table, or any RenderReplaced
- bool rtl = ps->direction() == RTL;
- const TQFontMetrics &pfm = ps->fontMetrics();
-
- if (coalesceOutsideBoxes) {
- if (sbp.equalsBox(box, true, false)) {
- sbp.it = lastCoalescedBox;
- Q_ASSERT(!sbp.found);
- sbp.found = true;
- }
- } else {
- addCreatedInlineBoxEdge(box, pfm, true, rtl);
- sbp.check(preEnd());
- }
-
- caret_boxes.append(new CaretBox(box, false, false));
- sbp.check(preEnd());
-
- addCreatedInlineBoxEdge(box, pfm, false, rtl);
- lastCoalescedBox = preEnd();
- sbp.check(lastCoalescedBox);
- coalesceOutsideBoxes = true;
- }/*end if*/
- }/*next box*/
-}
-#undef DEBUG_ACIB
-
-void CaretBoxLine::addCreatedFlowBoxInside(InlineFlowBox *flowBox, const TQFontMetrics &fm) /*KDE_NO_EXPORT*/
-{
-
- CaretBox *caretBox = new CaretBox(flowBox, false, false);
- caret_boxes.append(caretBox);
-
- // afaik an inner flow box can only have the width 0, therefore we don't
- // have to care for rtl or alignment
- // ### can empty inline elements have a width? css 2 spec isn't verbose about it
-
- caretBox->_y += flowBox->baseline() - fm.ascent();
- caretBox->_h = fm.height();
-}
-
-void CaretBoxLine::addCreatedFlowBoxEdge(InlineFlowBox *flowBox, const TQFontMetrics &fm, bool left, bool rtl) /*KDE_NO_EXPORT*/
-{
- CaretBox *caretBox = new CaretBox(flowBox, true, !left);
- caret_boxes.append(caretBox);
-
- if (left ^ rtl) caretBox->_x -= flowBox->paddingLeft() + flowBox->borderLeft() + 1;
- else caretBox->_x += caretBox->_w + flowBox->paddingRight() + flowBox->borderRight();
-
- caretBox->_y += flowBox->baseline() - fm.ascent();
- caretBox->_h = fm.height();
- caretBox->_w = 1;
-}
-
-void CaretBoxLine::addCreatedInlineBoxEdge(InlineBox *box, const TQFontMetrics &fm, bool left, bool rtl) /*KDE_NO_EXPORT*/
-{
- CaretBox *caretBox = new CaretBox(box, true, !left);
- caret_boxes.append(caretBox);
-
- if (left ^ rtl) caretBox->_x--;
- else caretBox->_x += caretBox->_w;
-
- caretBox->_y += box->baseline() - fm.ascent();
- caretBox->_h = fm.height();
- caretBox->_w = 1;
-}
-
-CaretBoxLine *CaretBoxLine::constructCaretBoxLine(CaretBoxLineDeleter *deleter,
- InlineFlowBox *basicFlowBox, InlineBox *seekBox, bool seekOutside,
- bool seekOutsideEnd, CaretBoxIterator &iter, RenderObject *seekObject)
-// KDE_NO_EXPORT
-{
- // Iterate all inline boxes within this inline flow box.
- // Caret boxes will be created for each
- // - outside begin of an inline flow box (except for the basic inline flow box)
- // - outside end of an inline flow box (except for the basic inline flow box)
- // - inside of an empty inline flow box
- // - outside begin of an inline box resembling a replaced element
- // - outside end of an inline box resembling a replaced element
- // - inline text box
- // - inline replaced box
-
- CaretBoxLine *result = new CaretBoxLine(basicFlowBox);
- deleter->append(result);
-
- SeekBoxParams sbp(seekBox, seekOutside, seekOutsideEnd, seekObject, iter);
-
- // iterate recursively, I'm too lazy to do it iteratively
- result->addConvertedInlineBox(basicFlowBox, sbp);
-
- if (!sbp.found) sbp.it = result->end();
-
- return result;
-}
-
-CaretBoxLine *CaretBoxLine::constructCaretBoxLine(CaretBoxLineDeleter *deleter,
- RenderBox *cb, bool outside, bool outsideEnd, CaretBoxIterator &iter) /*KDE_NO_EXPORT*/
-{
- int _x = cb->xPos();
- int _y = cb->yPos();
- int height;
- int width = 1; // no override is indicated in boxes
-
- if (outside) {
-
- RenderStyle *s = cb->element() && cb->element()->parent()
- && cb->element()->parent()->renderer()
- ? cb->element()->parent()->renderer()->style()
- : cb->style();
- bool rtl = s->direction() == RTL;
-
- const TQFontMetrics &fm = s->fontMetrics();
- height = fm.height();
-
- if (!outsideEnd) {
- _x--;
- } else {
- _x += cb->width();
- }
-
- int hl = fm.leading() / 2;
- int baseline = cb->baselinePosition(false);
- if (!cb->isReplaced() || cb->style()->display() == BLOCK) {
- if (!outsideEnd ^ rtl)
- _y -= fm.leading() / 2;
- else
- _y += kMax(cb->height() - fm.ascent() - hl, 0);
- } else {
- _y += baseline - fm.ascent() - hl;
- }
-
- } else { // !outside
-
- RenderStyle *s = cb->style();
- const TQFontMetrics &fm = s->fontMetrics();
- height = fm.height();
-
- _x += cb->borderLeft() + cb->paddingLeft();
- _y += cb->borderTop() + cb->paddingTop();
-
- // ### regard direction
- switch (s->textAlign()) {
- case LEFT:
- case KHTML_LEFT:
- case TAAUTO: // ### find out what this does
- case JUSTIFY:
- break;
- case CENTER:
- case KHTML_CENTER:
- _x += cb->contentWidth() / 2;
- break;
- case KHTML_RIGHT:
- case RIGHT:
- _x += cb->contentWidth();
- break;
- }/*end switch*/
- }/*end if*/
-
- CaretBoxLine *result = new CaretBoxLine;
- deleter->append(result);
- result->caret_boxes.append(new CaretBox(_x, _y, width, height, cb,
- outside, outsideEnd));
- iter = result->begin();
- return result;
-}
-
-#if DEBUG_CARETMODE > 0
-void CaretBoxLine::dump(TQTextStream &ts, const TQString &ind) const
-{
- ts << ind << "cbl: baseFlowBox@" << basefb << endl;
- TQString ind2 = ind + " ";
- for (size_t i = 0; i < caret_boxes.size(); i++) {
- if (i > 0) ts << endl;
- caret_boxes[i]->dump(ts, ind2);
- }
-}
-#endif
-
-// == caret mode related helper functions
-
-/** seeks the root line box that is the parent of the given inline box.
- * @param b given inline box
- * @param base base render object which not to step over. If \c base's
- * inline flow box is hit before the root line box, the flow box
- * is returned instead.
- * @return the root line box or the base flow box.
- */
-inline InlineFlowBox *seekBaseFlowBox(InlineBox *b, RenderObject *base = 0)
-{
- // Seek root line box or base inline flow box, if \c base is interfering.
- while (b->parent() && b->object() != base) {
- b = b->parent();
- }/*wend*/
- Q_ASSERT(b->isInlineFlowBox());
- return static_cast<InlineFlowBox *>(b);
-}
-
-/** determines whether the given element is a block level replaced element.
- */
-inline bool isBlockRenderReplaced(RenderObject *r)
-{
- return r->isRenderReplaced() && r->style()->display() == BLOCK;
-}
-
-/** determines the caret line box that contains the given position.
- *
- * If the node does not map to a render object, the function will snap to
- * the next suitable render object following it.
- *
- * @param node node to begin with
- * @param offset zero-based offset within node.
- * @param cblDeleter deleter for caret box lines
- * @param base base render object which the caret must not be placed beyond.
- * @param r_ofs adjusted offset within render object
- * @param caretBoxIt returns an iterator to the caret box that contains the
- * given position.
- * @return the determined caret box lineor 0 if either the node is 0 or
- * there is no inline flow box containing this node. The containing block
- * will still be set. If it is 0 too, @p node was invalid.
- */
-static CaretBoxLine* findCaretBoxLine(DOM::NodeImpl *node, long offset,
- CaretBoxLineDeleter *cblDeleter, RenderObject *base,
- long &r_ofs, CaretBoxIterator &caretBoxIt)
-{
- bool outside, outsideEnd;
- RenderObject *r = findRenderer(node, offset, base, r_ofs, outside, outsideEnd);
- if (!r) { return 0; }
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== findCaretBoxLine" << endl;
- kdDebug(6200) << "node " << node << " offset: " << offset << " r " << r->renderName() << "[" << r << "].node " << r->element()->nodeName().string() << "[" << r->element() << "]" << " r_ofs " << r_ofs << " outside " << outside << " outsideEnd " << outsideEnd << endl;
-#endif
-
- // There are two strategies to find the correct line box. (The third is failsafe)
- // (A) First, if node's renderer is a RenderText, we only traverse its text
- // runs and return the root line box (saves much time for long blocks).
- // This should be the case 99% of the time.
- // (B) Second, we derive the inline flow box directly when the renderer is
- // a RenderBlock, RenderInline, or blocked RenderReplaced.
- // (C) Otherwise, we iterate linearly through all line boxes in order to find
- // the renderer.
-
- // (A)
- if (r->isText()) do {
- RenderText *t = static_cast<RenderText *>(r);
- int dummy;
- InlineBox *b = t->findInlineTextBox(offset, dummy, true);
- // Actually b should never be 0, but some render texts don't have text
- // boxes, so we insert the last run as an error correction.
- // If there is no last run, we resort to (B)
- if (!b) {
- if (t->m_lines.count() > 0)
- b = t->m_lines[t->m_lines.count() - 1];
- else
- break;
- }/*end if*/
- Q_ASSERT(b);
- outside = false; // text boxes cannot have outside positions
- InlineFlowBox *baseFlowBox = seekBaseFlowBox(b, base);
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "text-box b: " << b << " baseFlowBox: " << baseFlowBox << (b && b->object() ? TQString(" contains \"%1\"").arg(TQConstString(static_cast<RenderText *>(b->object())->str->s+b->minOffset(), kMin(b->maxOffset() - b->minOffset(), 15L)).string()) : TQString::null) << endl;
-#endif
-#if 0
- if (t->containingBlock()->isListItem()) dumpLineBoxes(static_cast<RenderFlow *>(t->containingBlock()));
-#endif
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== end findCaretBoxLine (renderText)" << endl;
-#endif
- return CaretBoxLine::constructCaretBoxLine(cblDeleter, baseFlowBox,
- b, outside, outsideEnd, caretBoxIt);
- } while(false);/*end if*/
-
- // (B)
- bool isrepl = isBlockRenderReplaced(r);
- if (r->isRenderBlock() || r->isRenderInline() || isrepl) {
- RenderFlow *flow = static_cast<RenderFlow *>(r);
- InlineFlowBox *firstLineBox = isrepl ? 0 : flow->firstLineBox();
-
- // On render blocks, if we are outside, or have a totally empty render
- // block, we simply construct a special caret box line.
- // The latter case happens only when the render block is a leaf object itself.
- if (isrepl || r->isRenderBlock() && (outside || !firstLineBox)
- || r->isRenderInline() && !firstLineBox) {
- #if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== end findCaretBoxLine (box " << (outside ? (outsideEnd ? "outside end" : "outside begin") : "inside") << ")" << endl;
- #endif
- Q_ASSERT(r->isBox());
- return CaretBoxLine::constructCaretBoxLine(cblDeleter,
- static_cast<RenderBox *>(r), outside, outsideEnd, caretBoxIt);
- }/*end if*/
-
- kdDebug(6200) << "firstlinebox " << firstLineBox << endl;
- InlineFlowBox *baseFlowBox = seekBaseFlowBox(firstLineBox, base);
- return CaretBoxLine::constructCaretBoxLine(cblDeleter, baseFlowBox,
- firstLineBox, outside, outsideEnd, caretBoxIt);
- }/*end if*/
-
- RenderBlock *cb = r->containingBlock();
- //if ( !cb ) return 0L;
- Q_ASSERT(cb);
-
- // ### which element doesn't have a block as its containing block?
- // Is it still possible after the RenderBlock/RenderInline merge?
- if (!cb->isRenderBlock()) {
- kdWarning() << "containing block is no render block!!! crash imminent" << endl;
- }/*end if*/
-
- InlineFlowBox *flowBox = cb->firstLineBox();
- // (C)
- // This case strikes when the element is replaced, but neither a
- // RenderBlock nor a RenderInline
- if (!flowBox) { // ### utter emergency (why is this possible at all?)
-// flowBox = generateDummyFlowBox(arena, cb, r);
-// if (ibox) *ibox = flowBox->firstChild();
-// outside = outside_end = true;
-
-// kdWarning() << "containing block contains no inline flow boxes!!! crash imminent" << endl;
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== end findCaretBoxLine (2)" << endl;
-#endif
- return CaretBoxLine::constructCaretBoxLine(cblDeleter, cb,
- outside, outsideEnd, caretBoxIt);
- }/*end if*/
-
- // We iterate the inline flow boxes of the containing block until
- // we find the given node. This has one major flaw: it is linear, and therefore
- // painfully slow for really large blocks.
- for (; flowBox; flowBox = static_cast<InlineFlowBox *>(flowBox->nextLineBox())) {
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "[scan line]" << endl;
-#endif
-
- // construct a caret line box and stop when the element is contained within
- InlineFlowBox *baseFlowBox = seekBaseFlowBox(flowBox, base);
- CaretBoxLine *cbl = CaretBoxLine::constructCaretBoxLine(cblDeleter,
- baseFlowBox, 0, outside, outsideEnd, caretBoxIt, r);
-#if DEBUG_CARETMODE > 5
- kdDebug(6200) << cbl->information() << endl;
-#endif
- if (caretBoxIt != cbl->end()) {
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== end findCaretBoxLine (3)" << endl;
-#endif
- return cbl;
- }
- }/*next flowBox*/
-
- // no inline flow box found, approximate to nearest following node.
- // Danger: this is O(n^2). It's only called to recover from
- // errors, that means, theoretically, never. (Practically, far too often :-( )
- Q_ASSERT(!flowBox);
- CaretBoxLine *cbl = findCaretBoxLine(nextLeafNode(node, base ? base->element() : 0), 0, cblDeleter, base, r_ofs, caretBoxIt);
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "=================== end findCaretBoxLine" << endl;
-#endif
- return cbl;
-}
-
-/** finds the innermost table object @p r is contained within, but no
- * farther than @p cb.
- * @param r leaf element to begin with
- * @param cb bottom element where to stop search at least.
- * @return the table object or 0 if none found.
- */
-static inline RenderTable *findTableUpTo(RenderObject *r, RenderFlow *cb)
-{
- while (r && r != cb && !r->isTable()) r = r->parent();
- return r && r->isTable() ? static_cast<RenderTable *>(r) : 0;
-}
-
-/** checks whether @p r is a descendant of @p cb, or r == cb
- */
-static inline bool isDescendant(RenderObject *r, RenderObject *cb)
-{
- while (r && r != cb) r = r->parent();
- return r;
-}
-
-/** checks whether the given block contains at least one editable element.
- *
- * Warning: This function has linear complexity, and therefore is expensive.
- * Use it sparingly, and cache the result.
- * @param part part
- * @param cb block to be searched
- * @param table returns the nested table if there is one directly at the beginning
- * or at the end.
- * @param fromEnd begin search from end (default: begin from beginning)
- */
-static bool containsEditableElement(KHTMLPart *part, RenderBlock *cb,
- RenderTable *&table, bool fromEnd = false)
-{
- RenderObject *r = cb;
- if (fromEnd)
- while (r->lastChild()) r = r->lastChild();
- else
- while (r->firstChild()) r = r->firstChild();
-
- RenderTable *tempTable = 0;
- table = 0;
- bool withinCb;
-// int state; // not used
- ObjectTraversalState trav = InsideDescending;
- do {
- bool modWithinCb = withinCb = isDescendant(r, cb);
-
- // treat cb extra, it would not be considered otherwise
- if (!modWithinCb) {
- modWithinCb = true;
- r = cb;
- } else
- tempTable = findTableUpTo(r, cb);
-
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "cee: r " << (r ? r->renderName() : TQString::null) << "@" << r << " cb " << cb << " withinCb " << withinCb << " modWithinCb " << modWithinCb << " tempTable " << tempTable << endl;
-#endif
- if (r && modWithinCb && r->element() && !isUnsuitable(r, trav)
- && (part->isCaretMode() || part->isEditable()
- || r->style()->userInput() == UI_ENABLED)) {
- table = tempTable;
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "cee: editable" << endl;
-#endif
- return true;
- }/*end if*/
-
-// RenderObject *oldr = r;
-// while (r && r == oldr)
-// r = advanceSuitableObject(r, trav, fromEnd, cb->parent(), state);
- r = fromEnd ? r->objectAbove() : r->objectBelow();
- } while (r && withinCb);
- return false;
-}
-
-/** checks whether the given block contains at least one editable child
- * element, beginning with but excluding @p start.
- *
- * Warning: This function has linear complexity, and therefore is expensive.
- * Use it sparingly, and cache the result.
- * @param part part
- * @param cb block to be searched
- * @param table returns the nested table if there is one directly before/after
- * the start object.
- * @param fromEnd begin search from end (default: begin from beginning)
- * @param start object after which to begin search.
- */
-static bool containsEditableChildElement(KHTMLPart *part, RenderBlock *cb,
- RenderTable *&table, bool fromEnd, RenderObject *start)
-{
- int state = 0;
- ObjectTraversalState trav = OutsideAscending;
-// kdDebug(6201) << "start: " << start << endl;
- RenderObject *r = start;
- do {
- r = traverseRenderObjects(r, trav, fromEnd, cb->parent(), state);
- } while(r && !(state & AdvancedToSibling));
-// kdDebug(6201) << "r: " << r << endl;
- //advanceObject(start, trav, fromEnd, cb->parent(), state);
-// RenderObject *oldr = r;
-// while (r && r == oldr)
- if (!r) return false;
-
- if (fromEnd)
- while (r->firstChild()) r = r->firstChild();
- else
- while (r->lastChild()) r = r->lastChild();
-// kdDebug(6201) << "child r: " << r << endl;
- if (!r) return false;
-
- RenderTable *tempTable = 0;
- table = 0;
- bool withinCb = false;
- do {
-
- bool modWithinCb = withinCb = isDescendant(r, cb);
-
- // treat cb extra, it would not be considered otherwise
- if (!modWithinCb) {
- modWithinCb = true;
- r = cb;
- } else
- tempTable = findTableUpTo(r, cb);
-
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "cece: r " << (r ? r->renderName() : TQString::null) << "@" << r << " cb " << cb << " withinCb " << withinCb << " modWithinCb " << modWithinCb << " tempTable " << tempTable << endl;
-#endif
- if (r && withinCb && r->element() && !isUnsuitable(r, trav)
- && (part->isCaretMode() || part->isEditable()
- || r->style()->userInput() == UI_ENABLED)) {
- table = tempTable;
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "cece: editable" << endl;
-#endif
- return true;
- }/*end if*/
-
- r = fromEnd ? r->objectAbove() : r->objectBelow();
- } while (withinCb);
- return false;
-}
-
-// == class LinearDocument implementation
-
-LinearDocument::LinearDocument(KHTMLPart *part, NodeImpl *node, long offset,
- CaretAdvancePolicy advancePolicy, ElementImpl *baseElem)
- : node(node), offset(offset), m_part(part),
- advPol(advancePolicy), base(0)
-{
- if (node == 0) return;
-
- if (baseElem) {
- RenderObject *b = baseElem->renderer();
- if (b && (b->isRenderBlock() || b->isRenderInline()))
- base = b;
- }
-
- initPreBeginIterator();
- initEndIterator();
-}
-
-LinearDocument::~LinearDocument()
-{
-}
-
-int LinearDocument::count() const
-{
- // FIXME: not implemented
- return 1;
-}
-
-LinearDocument::Iterator LinearDocument::current()
-{
- return LineIterator(this, node, offset);
-}
-
-LinearDocument::Iterator LinearDocument::begin()
-{
- NodeImpl *n = base ? base->element() : 0;
- if (!base) n = node ? node->getDocument() : 0;
- if (!n) return end();
-
- n = n->firstChild();
- if (advPol == LeafsOnly)
- while (n->firstChild()) n = n->firstChild();
-
- if (!n) return end(); // must be empty document or empty base element
- return LineIterator(this, n, n->minOffset());
-}
-
-LinearDocument::Iterator LinearDocument::preEnd()
-{
- NodeImpl *n = base ? base->element() : 0;
- if (!base) n = node ? node->getDocument() : 0;
- if (!n) return preBegin();
-
- n = n->lastChild();
- if (advPol == LeafsOnly)
- while (n->lastChild()) n = n->lastChild();
-
- if (!n) return preBegin(); // must be empty document or empty base element
- return LineIterator(this, n, n->maxOffset());
-}
-
-void LinearDocument::initPreBeginIterator()
-{
- _preBegin = LineIterator(this, 0, 0);
-}
-
-void LinearDocument::initEndIterator()
-{
- _end = LineIterator(this, 0, 1);
-}
-
-// == class LineIterator implementation
-
-CaretBoxIterator LineIterator::currentBox /*KDE_NO_EXPORT*/;
-long LineIterator::currentOffset /*KDE_NO_EXPORT*/;
-
-LineIterator::LineIterator(LinearDocument *l, DOM::NodeImpl *node, long offset)
- : lines(l)
-{
-// kdDebug(6200) << "LineIterator: node " << node << " offset " << offset << endl;
- if (!node) { cbl = 0; return; }
- cbl = findCaretBoxLine(node, offset, &lines->cblDeleter,
- l->baseObject(), currentOffset, currentBox);
- // can happen on partially loaded documents
-#if DEBUG_CARETMODE > 0
- if (!cbl) kdDebug(6200) << "no render object found!" << endl;
-#endif
- if (!cbl) return;
-#if DEBUG_CARETMODE > 1
- kdDebug(6200) << "LineIterator: offset " << offset << " outside " << cbl->isOutside() << endl;
-#endif
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << cbl->information() << endl;
-#endif
- if (currentBox == cbl->end()) {
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "LineIterator: findCaretBoxLine failed" << endl;
-#endif
- cbl = 0;
- }/*end if*/
-}
-
-void LineIterator::nextBlock()
-{
- RenderObject *base = lines->baseObject();
-
- bool cb_outside = cbl->isOutside();
- bool cb_outside_end = cbl->isOutsideEnd();
-
- {
- RenderObject *r = cbl->enclosingObject();
-
- ObjectTraversalState trav;
- int state; // not used
- mapRenderPosToTraversalState(cb_outside, cb_outside_end, false, trav);
-#if DEBUG_CARETMODE > 1
- kdDebug(6200) << "nextBlock: before adv r" << r << " " << (r ? r->renderName() : TQString::null) << (r && r->isText() ? " contains \"" + TQString(((RenderText *)r)->str->s, QMIN(((RenderText *)r)->str->l,15)) + "\"" : TQString::null) << " trav " << trav << " cb_outside " << cb_outside << " cb_outside_end " << cb_outside_end << endl;
-#endif
- r = advanceSuitableObject(r, trav, false, base, state);
- if (!r) {
- cbl = 0;
- return;
- }/*end if*/
-
- mapTraversalStateToRenderPos(trav, false, cb_outside, cb_outside_end);
-#if DEBUG_CARETMODE > 1
- kdDebug(6200) << "nextBlock: after r" << r << " trav " << trav << " cb_outside " << cb_outside << " cb_outside_end " << cb_outside_end << endl;
-#endif
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "++: r " << r << "[" << (r?r->renderName():TQString::null) << "]" << endl;
-#endif
-
- RenderBlock *cb;
-
- // If we hit a block or replaced object, use this as its enclosing object
- bool isrepl = isBlockRenderReplaced(r);
- if (r->isRenderBlock() || isrepl) {
- RenderBox *cb = static_cast<RenderBox *>(r);
-
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter, cb,
- cb_outside, cb_outside_end, currentBox);
-
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "r->isFlow is cb. continuation @" << cb->continuation() << endl;
-#endif
- return;
- } else {
- cb = r->containingBlock();
- Q_ASSERT(cb->isRenderBlock());
- }/*end if*/
- InlineFlowBox *flowBox = cb->firstLineBox();
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "++: flowBox " << flowBox << " cb " << cb << "[" << (cb?cb->renderName()+TQString(".node ")+TQString::number((unsigned)cb->element(),16)+(cb->element()?"@"+cb->element()->nodeName().string():TQString::null):TQString::null) << "]" << endl;
-#endif
- Q_ASSERT(flowBox);
- if (!flowBox) { // ### utter emergency (why is this possible at all?)
- cb_outside = cb_outside_end = true;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter, cb,
- cb_outside, cb_outside_end, currentBox);
- return;
- }
-
- bool seekOutside = false, seekOutsideEnd = false; // silence gcc uninit warning
- CaretBoxIterator it;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter,
- flowBox, flowBox->firstChild(), seekOutside, seekOutsideEnd, it);
- }
-}
-
-void LineIterator::prevBlock()
-{
- RenderObject *base = lines->baseObject();
-
- bool cb_outside = cbl->isOutside();
- bool cb_outside_end = cbl->isOutsideEnd();
-
- {
- RenderObject *r = cbl->enclosingObject();
- if (r->isAnonymous() && !cb_outside)
- cb_outside = true, cb_outside_end = false;
-
- ObjectTraversalState trav;
- int state; // not used
- mapRenderPosToTraversalState(cb_outside, cb_outside_end, true, trav);
-#if DEBUG_CARETMODE > 1
- kdDebug(6200) << "prevBlock: before adv r" << r << " " << (r ? r->renderName() : TQString::null) << (r && r->isText() ? " contains \"" + TQString(((RenderText *)r)->str->s, QMIN(((RenderText *)r)->str->l,15)) + "\"" : TQString::null) << " trav " << trav << " cb_outside " << cb_outside << " cb_outside_end " << cb_outside_end << endl;
-#endif
- r = advanceSuitableObject(r, trav, true, base, state);
- if (!r) {
- cbl = 0;
- return;
- }/*end if*/
-
- mapTraversalStateToRenderPos(trav, true, cb_outside, cb_outside_end);
-#if DEBUG_CARETMODE > 1
- kdDebug(6200) << "prevBlock: after r" << r << " trav " << trav << " cb_outside " << cb_outside << " cb_outside_end " << cb_outside_end << endl;
-#endif
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "--: r " << r << "[" << (r?r->renderName():TQString::null) << "]" << endl;
-#endif
-
- RenderBlock *cb;
-
- // If we hit a block, use this as its enclosing object
- bool isrepl = isBlockRenderReplaced(r);
-// kdDebug(6200) << "isrepl " << isrepl << " isblock " << r->isRenderBlock() << endl;
- if (r->isRenderBlock() || isrepl) {
- RenderBox *cb = static_cast<RenderBox *>(r);
-
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter, cb,
- cb_outside, cb_outside_end, currentBox);
-
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "r->isFlow is cb. continuation @" << cb->continuation() << endl;
-#endif
- return;
- } else {
- cb = r->containingBlock();
- Q_ASSERT(cb->isRenderBlock());
- }/*end if*/
- InlineFlowBox *flowBox = cb->lastLineBox();
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "--: flowBox " << flowBox << " cb " << cb << "[" << (cb?cb->renderName()+TQString(".node ")+TQString::number((unsigned)cb->element(),16)+(cb->element()?"@"+cb->element()->nodeName().string():TQString::null):TQString::null) << "]" << endl;
-#endif
- Q_ASSERT(flowBox);
- if (!flowBox) { // ### utter emergency (why is this possible at all?)
- cb_outside = true; cb_outside_end = false;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter, cb,
- cb_outside, cb_outside_end, currentBox);
- return;
- }
-
- bool seekOutside = false, seekOutsideEnd = false; // silence gcc uninit warning
- CaretBoxIterator it;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter,
- flowBox, flowBox->firstChild(), seekOutside, seekOutsideEnd, it);
- }
-}
-
-void LineIterator::advance(bool toBegin)
-{
- InlineFlowBox *flowBox = cbl->baseFlowBox();
- if (flowBox) {
- flowBox = static_cast<InlineFlowBox *>(toBegin ? flowBox->prevLineBox() : flowBox->nextLineBox());
- if (flowBox) {
- bool seekOutside = false, seekOutsideEnd = false; // silence gcc uninit warning
- CaretBoxIterator it;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter,
- flowBox, flowBox->firstChild(), seekOutside, seekOutsideEnd, it);
- }/*end if*/
- }/*end if*/
-
- // if there are no more lines in this block, move towards block to come
- if (!flowBox) { if (toBegin) prevBlock(); else nextBlock(); }
-
-#if DEBUG_CARETMODE > 3
- if (cbl) kdDebug(6200) << cbl->information() << endl;
-#endif
-}
-
-// == class EditableCaretBoxIterator implementation
-
-void EditableCaretBoxIterator::advance(bool toBegin)
-{
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "---------------" << k_funcinfo << "toBegin " << toBegin << endl;
-#endif
- const CaretBoxIterator preBegin = cbl->preBegin();
- const CaretBoxIterator end = cbl->end();
-
- CaretBoxIterator lastbox = *this, curbox;
- bool islastuseable = true; // silence gcc
- bool iscuruseable;
- // Assume adjacency of caret boxes. Will be falsified later if applicable.
- adjacent = true;
-
-#if DEBUG_CARETMODE > 4
-// kdDebug(6200) << "ebit::advance: before: " << (**this)->object() << "@" << (**this)->object()->renderName() << ".node " << (**this)->object()->element() << "[" << ((**this)->object()->element() ? (**this)->object()->element()->nodeName().string() : TQString::null) << "] inline " << (**this)->isInline() << " outside " << (**this)->isOutside() << " outsideEnd " << (**this)->isOutsideEnd() << endl;
-#endif
-
- if (toBegin) CaretBoxIterator::operator --(); else CaretBoxIterator::operator ++();
- bool curAtEnd = *this == preBegin || *this == end;
- curbox = *this;
- bool atEnd = true;
- if (!curAtEnd) {
- iscuruseable = isEditable(curbox, toBegin);
- if (toBegin) CaretBoxIterator::operator --(); else CaretBoxIterator::operator ++();
- atEnd = *this == preBegin || *this == end;
- }
- while (!curAtEnd) {
- bool haslast = lastbox != end && lastbox != preBegin;
- bool hascoming = !atEnd;
- bool iscominguseable = true; // silence gcc
-
- if (!atEnd) iscominguseable = isEditable(*this, toBegin);
- if (iscuruseable) {
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "ebit::advance: " << (*curbox)->object() << "@" << (*curbox)->object()->renderName() << ".node " << (*curbox)->object()->element() << "[" << ((*curbox)->object()->element() ? (*curbox)->object()->element()->nodeName().string() : TQString::null) << "] inline " << (*curbox)->isInline() << " outside " << (*curbox)->isOutside() << " outsideEnd " << (*curbox)->isOutsideEnd() << endl;
-#endif
-
- CaretBox *box = *curbox;
- if (box->isOutside()) {
- // if this caret box represents no inline box, it is an outside box
- // which has to be considered unconditionally
- if (!box->isInline()) break;
-
- if (advpol == VisibleFlows) break;
-
- // IndicatedFlows and LeafsOnly are treated equally in caret box lines
-
- InlineBox *ibox = box->inlineBox();
- // get previous inline box
- InlineBox *prev = box->isOutsideEnd() ? ibox : ibox->prevOnLine();
- // get next inline box
- InlineBox *next = box->isOutsideEnd() ? ibox->nextOnLine() : ibox;
-
- const bool isprevindicated = !prev || isIndicatedInlineBox(prev);
- const bool isnextindicated = !next || isIndicatedInlineBox(next);
- const bool last = haslast && !islastuseable;
- const bool coming = hascoming && !iscominguseable;
- const bool left = !prev || prev->isInlineFlowBox() && isprevindicated
- || (toBegin && coming || !toBegin && last);
- const bool right = !next || next->isInlineFlowBox() && isnextindicated
- || (!toBegin && coming || toBegin && last);
- const bool text2indicated = toBegin && next && next->isInlineTextBox()
- && isprevindicated
- || !toBegin && prev && prev->isInlineTextBox() && isnextindicated;
- const bool indicated2text = !toBegin && next && next->isInlineTextBox()
- && prev && isprevindicated
- // ### this code is so broken.
- /*|| toBegin && prev && prev->isInlineTextBox() && isnextindicated*/;
-#if DEBUG_CARETMODE > 5
- kdDebug(6200) << "prev " << prev << " haslast " << haslast << " islastuseable " << islastuseable << " left " << left << " next " << next << " hascoming " << hascoming << " iscominguseable " << iscominguseable << " right " << right << " text2indicated " << text2indicated << " indicated2text " << indicated2text << endl;
-#endif
-
- if (left && right && !text2indicated || indicated2text) {
- adjacent = false;
-#if DEBUG_CARETMODE > 4
- kdDebug(6200) << "left && right && !text2indicated || indicated2text" << endl;
-#endif
- break;
- }
-
- } else {
- // inside boxes are *always* valid
-#if DEBUG_CARETMODE > 4
-if (box->isInline()) {
- InlineBox *ibox = box->inlineBox();
- kdDebug(6200) << "inside " << (!ibox->isInlineFlowBox() || static_cast<InlineFlowBox *>(ibox)->firstChild() ? "non-empty" : "empty") << (isIndicatedInlineBox(ibox) ? " indicated" : "") << " adjacent=" << adjacent << endl;
- }
-#if 0
- RenderStyle *s = ibox->object()->style();
- kdDebug(6200) << "bordls " << s->borderLeftStyle()
- << " bordl " << (s->borderLeftStyle() != BNONE)
- << " bordr " << (s->borderRightStyle() != BNONE)
- << " bordt " << (s->borderTopStyle() != BNONE)
- << " bordb " << (s->borderBottomStyle() != BNONE)
- << " padl " << s->paddingLeft().value()
- << " padr " << s->paddingRight().value()
- << " padt " << s->paddingTop().value()
- << " padb " << s->paddingBottom().value()
- // ### Can inline elements have top/bottom margins? Couldn't find
- // it in the CSS 2 spec, but Mozilla ignores them, so we do, too.
- << " marl " << s->marginLeft().value()
- << " marr " << s->marginRight().value()
- << endl;
-#endif
-#endif
- break;
- }/*end if*/
-
- } else {
-
- if (!(*curbox)->isOutside()) {
- // cannot be adjacent anymore
- adjacent = false;
- }
-
- }/*end if*/
- lastbox = curbox;
- islastuseable = iscuruseable;
- curbox = *this;
- iscuruseable = iscominguseable;
- curAtEnd = atEnd;
- if (!atEnd) {
- if (toBegin) CaretBoxIterator::operator --(); else CaretBoxIterator::operator ++();
- atEnd = *this == preBegin || *this == end;
- }/*end if*/
- }/*wend*/
-
- *static_cast<CaretBoxIterator *>(this) = curbox;
-#if DEBUG_CARETMODE > 4
-// kdDebug(6200) << "still valid? " << (*this != preBegin && *this != end) << endl;
-#endif
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "---------------" << k_funcinfo << "end " << endl;
-#endif
-}
-
-bool EditableCaretBoxIterator::isEditable(const CaretBoxIterator &boxit, bool fromEnd)
-{
- Q_ASSERT(boxit != cbl->end() && boxit != cbl->preBegin());
- CaretBox *b = *boxit;
- RenderObject *r = b->object();
-#if DEBUG_CARETMODE > 0
-// if (b->isInlineFlowBox()) kdDebug(6200) << "b is inline flow box" << (outside ? " (outside)" : "") << endl;
- kdDebug(6200) << "isEditable r" << r << ": " << (r ? r->renderName() : TQString::null) << (r && r->isText() ? " contains \"" + TQString(((RenderText *)r)->str->s, QMIN(((RenderText *)r)->str->l,15)) + "\"" : TQString::null) << endl;
-#endif
- // Must check caret mode or design mode *after* r->element(), otherwise
- // lines without a backing DOM node get regarded, leading to a crash.
- // ### check should actually be in InlineBoxIterator
- NodeImpl *node = r->element();
- ObjectTraversalState trav;
- mapRenderPosToTraversalState(b->isOutside(), b->isOutsideEnd(), fromEnd, trav);
- if (isUnsuitable(r, trav) || !node) {
- return false;
- }
-
- // generally exclude replaced elements with no children from navigation
- if (!b->isOutside() && r->isRenderReplaced() && !r->firstChild())
- return false;
-
- RenderObject *eff_r = r;
- bool globallyNavigable = m_part->isCaretMode() || m_part->isEditable();
-
- // calculate the parent element's editability if this inline box is outside.
- if (b->isOutside() && !globallyNavigable) {
- NodeImpl *par = node->parent();
- // I wonder whether par can be 0. It shouldn't be possible if the
- // algorithm contained no bugs.
- Q_ASSERT(par);
- if (par) node = par;
- eff_r = node->renderer();
- Q_ASSERT(eff_r); // this is a hard requirement
- }
-
- bool result = globallyNavigable || eff_r->style()->userInput() == UI_ENABLED;
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << result << endl;
-#endif
- return result;
-}
-
-// == class EditableLineIterator implementation
-
-void EditableLineIterator::advance(bool toBegin)
-{
- CaretAdvancePolicy advpol = lines->advancePolicy();
- LineIterator lasteditable, lastindicated;
- bool haslasteditable = false;
- bool haslastindicated = false;
- bool uselasteditable = false;
-
- LineIterator::advance(toBegin);
- while (cbl) {
- if (isEditable(*this)) {
-#if DEBUG_CARETMODE > 3
- kdDebug(6200) << "advance: " << cbl->enclosingObject() << "@" << cbl->enclosingObject()->renderName() << ".node " << cbl->enclosingObject()->element() << "[" << (cbl->enclosingObject()->element() ? cbl->enclosingObject()->element()->nodeName().string() : TQString::null) << "]" << endl;
-#endif
-
- bool hasindicated = isIndicatedFlow(cbl->enclosingObject());
- if (hasindicated) {
- haslastindicated = true;
- lastindicated = *this;
- }
-
- switch (advpol) {
- case IndicatedFlows:
- if (hasindicated) goto wend;
- // fall through
- case LeafsOnly:
- if (cbl->isOutside()) break;
- // fall through
- case VisibleFlows: goto wend;
- }/*end switch*/
-
- // remember rejected editable element
- lasteditable = *this;
- haslasteditable = true;
-#if DEBUG_CARETMODE > 4
- kdDebug(6200) << "remembered lasteditable " << *lasteditable << endl;
-#endif
- } else {
-
- // If this element isn't editable, but the last one was, and it was only
- // rejected because it didn't match the caret advance policy, force it.
- // Otherwise certain combinations of editable and uneditable elements
- // could never be reached with some policies.
- if (haslasteditable) { uselasteditable = true; break; }
-
- }
- LineIterator::advance(toBegin);
- }/*wend*/
-wend:
-
- if (uselasteditable) *this = haslastindicated ? lastindicated : lasteditable;
- if (!cbl && haslastindicated) *this = lastindicated;
-}
-
-// == class EditableCharacterIterator implementation
-
-void EditableCharacterIterator::initFirstChar()
-{
- CaretBox *box = *ebit;
- InlineBox *b = box->inlineBox();
- if (_offset == box->maxOffset())
- peekNext();
- else if (b && !box->isOutside() && b->isInlineTextBox())
- _char = static_cast<RenderText *>(b->object())->str->s[_offset].unicode();
- else
- _char = -1;
-}
-
-/** returns true when the given caret box is empty, i. e. should not
- * take place in caret movement.
- */
-static inline bool isCaretBoxEmpty(CaretBox *box) {
- if (!box->isInline()) return false;
- InlineBox *ibox = box->inlineBox();
- return ibox->isInlineFlowBox()
- && !static_cast<InlineFlowBox *>(ibox)->firstChild()
- && !isIndicatedInlineBox(ibox);
-}
-
-EditableCharacterIterator &EditableCharacterIterator::operator ++()
-{
- _offset++;
-
- CaretBox *box = *ebit;
- InlineBox *b = box->inlineBox();
- long maxofs = box->maxOffset();
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "box->maxOffset() " << box->maxOffset() << " box->minOffset() " << box->minOffset() << endl;
-#endif
- if (_offset == maxofs) {
-#if DEBUG_CARETMODE > 2
-kdDebug(6200) << "_offset == maxofs: " << _offset << " == " << maxofs << endl;
-#endif
- peekNext();
- } else if (_offset > maxofs) {
-#if DEBUG_CARETMODE > 2
-kdDebug(6200) << "_offset > maxofs: " << _offset << " > " << maxofs /*<< " _peekNext: " << _peekNext*/ << endl;
-#endif
- if (/*!_peekNext*/true) {
- ++ebit;
- if (ebit == (*_it)->end()) { // end of line reached, go to next line
- ++_it;
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "++_it" << endl;
-#endif
- if (_it != _it.lines->end()) {
- ebit = _it;
- box = *ebit;
- b = box->inlineBox();
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "box " << box << " b " << b << " isText " << box->isInlineTextBox() << endl;
-#endif
-
-#if DEBUG_CARETMODE > 3
- RenderObject *_r = box->object();
-kdDebug(6200) << "_r " << _r << ":" << _r->element()->nodeName().string() << endl;
-#endif
- _offset = box->minOffset();
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "_offset " << _offset << endl;
-#endif
- } else {
- b = 0;
- _end = true;
- }/*end if*/
- goto readchar;
- }/*end if*/
- }/*end if*/
-
- bool adjacent = ebit.isAdjacent();
-#if 0
- // Jump over element if this one is not a text node.
- if (adjacent && !(*ebit)->isInlineTextBox()) {
- EditableCaretBoxIterator copy = ebit;
- ++ebit;
- if (ebit != (*_it)->end() && (*ebit)->isInlineTextBox()
- /*&& (!(*ebit)->isInlineFlowBox()
- || static_cast<InlineFlowBox *>(*ebit)->)*/)
- adjacent = false;
- else ebit = copy;
- }/*end if*/
-#endif
- // Jump over empty elements.
- if (adjacent && !(*ebit)->isInlineTextBox()) {
- bool noemptybox = true;
- while (isCaretBoxEmpty(*ebit)) {
- noemptybox = false;
- EditableCaretBoxIterator copy = ebit;
- ++ebit;
- if (ebit == (*_it)->end()) { ebit = copy; break; }
- }
- if (noemptybox) adjacent = false;
- }/*end if*/
-// _r = (*ebit)->object();
- /*if (!_it.outside) */_offset = (*ebit)->minOffset() + adjacent;
- //_peekNext = 0;
- box = *ebit;
- b = box->inlineBox();
- goto readchar;
- } else {
-readchar:
- // get character
- if (b && !box->isOutside() && b->isInlineTextBox() && _offset < b->maxOffset())
- _char = static_cast<RenderText *>(b->object())->str->s[_offset].unicode();
- else
- _char = -1;
- }/*end if*/
-#if DEBUG_CARETMODE > 2
-kdDebug(6200) << "_offset: " << _offset /*<< " _peekNext: " << _peekNext*/ << " char '" << (char)_char << "'" << endl;
-#endif
-
-#if DEBUG_CARETMODE > 0
- if (!_end && ebit != (*_it)->end()) {
- CaretBox *box = *ebit;
- RenderObject *_r = box->object();
- kdDebug(6200) << "echit++(1): box " << box << (box && box->isInlineTextBox() ? TQString(" contains \"%1\"").arg(TQConstString(static_cast<RenderText *>(box->object())->str->s+box->minOffset(), box->maxOffset() - box->minOffset()).string()) : TQString::null) << " _r " << (_r ? _r->element()->nodeName().string() : TQString("<nil>")) << endl;
- }
-#endif
- return *this;
-}
-
-EditableCharacterIterator &EditableCharacterIterator::operator --()
-{
- _offset--;
- //kdDebug(6200) << "--: _offset=" << _offset << endl;
-
- CaretBox *box = *ebit;
- CaretBox *_peekPrev = 0;
- CaretBox *_peekNext = 0;
- InlineBox *b = box->inlineBox();
- long minofs = box->minOffset();
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "box->maxOffset() " << box->maxOffset() << " box->minOffset() " << box->minOffset() << endl;
-#endif
- if (_offset == minofs) {
-#if DEBUG_CARETMODE > 2
-kdDebug(6200) << "_offset == minofs: " << _offset << " == " << minofs << endl;
-#endif
-// _peekNext = b;
- // get character
- if (b && !box->isOutside() && b->isInlineTextBox())
- _char = static_cast<RenderText *>(b->object())->text()[_offset].unicode();
- else
- _char = -1;
-
- //peekPrev();
- bool do_prev = false;
- {
- EditableCaretBoxIterator copy;
- _peekPrev = 0;
- do {
- copy = ebit;
- --ebit;
- if (ebit == (*_it)->preBegin()) { ebit = copy; break; }
- } while (isCaretBoxEmpty(*ebit));
- // Jump to end of previous element if it's adjacent, and a text box
- if (ebit.isAdjacent() && ebit != (*_it)->preBegin() && (*ebit)->isInlineTextBox()) {
- _peekPrev = *ebit;
- do_prev = true;
- } else
- ebit = copy;
- }
- if (do_prev) goto prev;
- } else if (_offset < minofs) {
-prev:
-#if DEBUG_CARETMODE > 2
-kdDebug(6200) << "_offset < minofs: " << _offset << " < " << minofs /*<< " _peekNext: " << _peekNext*/ << endl;
-#endif
- if (!_peekPrev) {
- _peekNext = *ebit;
- --ebit;
- if (ebit == (*_it)->preBegin()) { // end of line reached, go to previous line
- --_it;
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "--_it" << endl;
-#endif
- if (_it != _it.lines->preBegin()) {
-// kdDebug(6200) << "begin from end!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" << endl;
- ebit = EditableCaretBoxIterator(_it, true);
- box = *ebit;
-// RenderObject *r = box->object();
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "box " << box << " b " << box->inlineBox() << " isText " << box->isInlineTextBox() << endl;
-#endif
- _offset = box->maxOffset();
-// if (!_it.outside) _offset = r->isBR() ? (*ebit)->minOffset() : (*ebit)->maxOffset();
- _char = -1;
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "echit--(2): box " << box << " b " << box->inlineBox() << (box->isInlineTextBox() ? TQString(" contains \"%1\"").arg(TQConstString(static_cast<RenderText *>(box->object())->str->s+box->minOffset(), box->maxOffset() - box->minOffset()).string()) : TQString::null) << endl;
-#endif
- } else
- _end = true;
- return *this;
- }/*end if*/
- }/*end if*/
-
-#if DEBUG_CARETMODE > 0
- bool adjacent = ebit.isAdjacent();
- kdDebug(6200) << "adjacent " << adjacent << " _peekNext " << _peekNext << " _peekNext->isInlineTextBox: " << (_peekNext ? _peekNext->isInlineTextBox() : false) << " !((*ebit)->isInlineTextBox): " << (*ebit ? !(*ebit)->isInlineTextBox() : true) << endl;
-#endif
-#if 0
- // Ignore this box if it isn't a text box, but the previous box was
- if (adjacent && _peekNext && _peekNext->isInlineTextBox()
- && !(*ebit)->isInlineTextBox()) {
- EditableCaretBoxIterator copy = ebit;
- --ebit;
- if (ebit == (*_it)->preBegin()) /*adjacent = false;
- else */ebit = copy;
- }/*end if*/
-#endif
-#if 0
- // Jump over empty elements.
- if (adjacent //&& _peekNext && _peekNext->isInlineTextBox()
- && !(*ebit)->isInlineTextBox()) {
- bool noemptybox = true;
- while (isCaretBoxEmpty(*ebit)) {
- noemptybox = false;
- EditableCaretBoxIterator copy = ebit;
- --ebit;
- if (ebit == (*_it)->preBegin()) { ebit = copy; break; }
- else _peekNext = *copy;
- }
- if (noemptybox) adjacent = false;
- }/*end if*/
-#endif
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "(*ebit)->obj " << (*ebit)->object()->renderName() << "[" << (*ebit)->object() << "]" << " minOffset: " << (*ebit)->minOffset() << " maxOffset: " << (*ebit)->maxOffset() << endl;
-#endif
-#if DEBUG_CARETMODE > 3
- RenderObject *_r = (*ebit)->object();
-kdDebug(6200) << "_r " << _r << ":" << _r->element()->nodeName().string() << endl;
-#endif
- _offset = (*ebit)->maxOffset();
-// if (!_it.outside) _offset = (*ebit)->maxOffset()/* - adjacent*/;
-#if DEBUG_CARETMODE > 3
-kdDebug(6200) << "_offset " << _offset << endl;
-#endif
- _peekPrev = 0;
- } else {
-#if DEBUG_CARETMODE > 0
-kdDebug(6200) << "_offset: " << _offset << " _peekNext: " << _peekNext << endl;
-#endif
- // get character
- if (_peekNext && _offset >= box->maxOffset() && _peekNext->isInlineTextBox())
- _char = static_cast<RenderText *>(_peekNext->object())->text()[_peekNext->minOffset()].unicode();
- else if (b && _offset < b->maxOffset() && b->isInlineTextBox())
- _char = static_cast<RenderText *>(b->object())->text()[_offset].unicode();
- else
- _char = -1;
- }/*end if*/
-
-#if DEBUG_CARETMODE > 0
- if (!_end && ebit != (*_it)->preBegin()) {
- CaretBox *box = *ebit;
- kdDebug(6200) << "echit--(1): box " << box << " b " << box->inlineBox() << (box->isInlineTextBox() ? TQString(" contains \"%1\"").arg(TQConstString(static_cast<RenderText *>(box->object())->str->s+box->minOffset(), box->maxOffset() - box->minOffset()).string()) : TQString::null) << endl;
- }
-#endif
- return *this;
-}
-
-// == class TableRowIterator implementation
-
-TableRowIterator::TableRowIterator(RenderTable *table, bool fromEnd,
- RenderTableSection::RowStruct *row)
- : sec(table, fromEnd)
-{
- // set index
- if (*sec) {
- if (fromEnd) index = (*sec)->grid.size() - 1;
- else index = 0;
- }/*end if*/
-
- // initialize with given row
- if (row && *sec) {
- while (operator *() != row)
- if (fromEnd) operator --(); else operator ++();
- }/*end if*/
-}
-
-TableRowIterator &TableRowIterator::operator ++()
-{
- index++;
-
- if (index >= (int)(*sec)->grid.size()) {
- ++sec;
-
- if (*sec) index = 0;
- }/*end if*/
- return *this;
-}
-
-TableRowIterator &TableRowIterator::operator --()
-{
- index--;
-
- if (index < 0) {
- --sec;
-
- if (*sec) index = (*sec)->grid.size() - 1;
- }/*end if*/
- return *this;
-}
-
-// == class ErgonomicEditableLineIterator implementation
-
-// some decls
-static RenderTableCell *findNearestTableCellInRow(KHTMLPart *part, int x,
- RenderTableSection::RowStruct *row, bool fromEnd);
-
-/** finds the cell corresponding to absolute x-coordinate @p x in the given
- * table.
- *
- * If there is no direct cell, or the cell is not accessible, the function
- * will return the nearest suitable cell.
- * @param part part containing the document
- * @param x absolute x-coordinate
- * @param it table row iterator, will be adapted accordingly as more rows are
- * investigated.
- * @param fromEnd @p true to begin search from end and work towards the
- * beginning
- * @return the cell, or 0 if no editable cell was found.
- */
-static inline RenderTableCell *findNearestTableCell(KHTMLPart *part, int x,
- TableRowIterator &it, bool fromEnd)
-{
- RenderTableCell *result = 0;
-
- while (*it) {
- result = findNearestTableCellInRow(part, x, *it, fromEnd);
- if (result) break;
-
- if (fromEnd) --it; else ++it;
- }/*wend*/
-
- return result;
-}
-
-/** finds the nearest editable cell around the given absolute x-coordinate
- *
- * It will dive into nested tables as necessary to provide seamless navigation.
- *
- * If the cell at @p x is not editable, its left neighbor is tried, then its
- * right neighbor, then the left neighbor's left neighbor etc. If no
- * editable cell can be found, 0 is returned.
- * @param part khtml part
- * @param x absolute x-coordinate
- * @param row table row to be searched
- * @param fromEnd @p true, begin from end (applies only to nested tables)
- * @return the found cell or 0 if no editable cell was found
- */
-static RenderTableCell *findNearestTableCellInRow(KHTMLPart *part, int x,
- RenderTableSection::RowStruct *row, bool fromEnd)
-{
- // First pass. Find spatially nearest cell.
- int n = (int)row->row->size();
- int i;
- for (i = 0; i < n; i++) {
- RenderTableCell *cell = row->row->at(i);
- if (!cell || (long)cell == -1) continue;
-
- int absx, absy;
- cell->absolutePosition(absx, absy, false); // ### position: fixed?
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "i/n " << i << "/" << n << " absx " << absx << " absy " << absy << endl;
-#endif
-
- // I rely on the assumption that all cells are in ascending visual order
- // ### maybe this assumption is wrong for bidi?
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "x " << x << " < " << (absx + cell->width()) << "?" << endl;
-#endif
- if (x < absx + cell->width()) break;
- }/*next i*/
- if (i >= n) i = n - 1;
-
- // Second pass. Find editable cell, beginning with the currently found,
- // extending to the left, and to the right, alternating.
- for (int cnt = 0; cnt < 2*n; cnt++) {
- int index = i - ((cnt >> 1) + 1)*(cnt & 1) + (cnt >> 1)*!(cnt & 1);
- if (index < 0 || index >= n) continue;
-
- RenderTableCell *cell = row->row->at(index);
- if (!cell || (long)cell == -1) continue;
-
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "index " << index << " cell " << cell << endl;
-#endif
- RenderTable *nestedTable;
- if (containsEditableElement(part, cell, nestedTable, fromEnd)) {
-
- if (nestedTable) {
- TableRowIterator it(nestedTable, fromEnd);
- while (*it) {
-// kdDebug(6201) << "=== recursive invocation" << endl;
- cell = findNearestTableCell(part, x, it, fromEnd);
- if (cell) break;
- if (fromEnd) --it; else ++it;
- }/*wend*/
- }/*end if*/
-
- return cell;
- }/*end if*/
- }/*next i*/
- return 0;
-}
-
-/** returns the nearest common ancestor of two objects that is a table cell,
- * a table section, or 0 if not inside a common table.
- *
- * If @p r1 and @p r2 belong to the same table, but different sections, @p r1's
- * section is returned.
- */
-static RenderObject *commonAncestorTableSectionOrCell(RenderObject *r1,
- RenderObject *r2)
-{
- if (!r1 || !r2) return 0;
- RenderTableSection *sec = 0;
- int start_depth=0, end_depth=0;
- // First we find the depths of the two objects in the tree (start_depth, end_depth)
- RenderObject *n = r1;
- while (n->parent()) {
- n = n->parent();
- start_depth++;
- }/*wend*/
- n = r2;
- while( n->parent()) {
- n = n->parent();
- end_depth++;
- }/*wend*/
- // here we climb up the tree with the deeper object, until both objects have equal depth
- while (end_depth > start_depth) {
- r2 = r2->parent();
- end_depth--;
- }/*wend*/
- while (start_depth > end_depth) {
- r1 = r1->parent();
-// if (r1->isTableSection()) sec = static_cast<RenderTableSection *>(r1);
- start_depth--;
- }/*wend*/
- // Climb the tree with both r1 and r2 until they are the same
- while (r1 != r2){
- r1 = r1->parent();
- if (r1->isTableSection()) sec = static_cast<RenderTableSection *>(r1);
- r2 = r2->parent();
- }/*wend*/
-
- // At this point, we found the most approximate common ancestor. Now climb
- // up until the condition of the function return value is satisfied.
- while (r1 && !r1->isTableCell() && !r1->isTableSection() && !r1->isTable())
- r1 = r1->parent();
-
- return r1 && r1->isTable() ? sec : r1;
-}
-
-/** Finds the row that contains the given cell, directly, or indirectly
- * @param section section to be searched
- * @param cell table cell
- * @param row returns the row
- * @param directCell returns the direct cell that contains @p cell
- * @return the index of the row.
- */
-static int findRowInSection(RenderTableSection *section, RenderTableCell *cell,
- RenderTableSection::RowStruct *&row, RenderTableCell *&directCell)
-{
- // Seek direct cell
- RenderObject *r = cell;
- while (r != section) {
- if (r->isTableCell()) directCell = static_cast<RenderTableCell *>(r);
- r = r->parent();
- }/*wend*/
-
- // So, and this is really nasty: As we have no indices, we have to do a
- // linear comparison. Oh, that sucks so much for long tables, you can't
- // imagine.
- int n = section->numRows();
- for (int i = 0; i < n; i++) {
- row = &section->grid[i];
-
- // check for cell
- int m = row->row->size();
- for (int j = 0; j < m; j++) {
- RenderTableCell *c = row->row->at(j);
- if (c == directCell) return i;
- }/*next j*/
-
- }/*next i*/
- Q_ASSERT(false);
- return -1;
-}
-
-/** finds the table that is the first direct or indirect descendant of @p block.
- * @param leaf object to begin search from.
- * @param block object to search to, or 0 to search up to top.
- * @return the table or 0 if there were none.
- */
-static inline RenderTable *findFirstDescendantTable(RenderObject *leaf, RenderBlock *block)
-{
- RenderTable *result = 0;
- while (leaf && leaf != block) {
- if (leaf->isTable()) result = static_cast<RenderTable *>(leaf);
- leaf = leaf->parent();
- }/*wend*/
- return result;
-}
-
-/** looks for the table cell the given object @p r is contained within.
- * @return the table cell or 0 if not contained in any table.
- */
-static inline RenderTableCell *containingTableCell(RenderObject *r)
-{
- while (r && !r->isTableCell()) r = r->parent();
- return static_cast<RenderTableCell *>(r);
-}
-
-inline void ErgonomicEditableLineIterator::calcAndStoreNewLine(
- RenderBlock *newBlock, bool toBegin)
-{
- // take the first/last editable element in the found cell as the new
- // value for the iterator
- CaretBoxIterator it;
- cbl = CaretBoxLine::constructCaretBoxLine(&lines->cblDeleter,
- newBlock, true, toBegin, it);
-#if DEBUG_CARETMODE > 3
- kdDebug(6201) << cbl->information() << endl;
-#endif
-// if (toBegin) prevBlock(); else nextBlock();
-
- if (!cbl) {
- return;
- }/*end if*/
-
- EditableLineIterator::advance(toBegin);
-}
-
-void ErgonomicEditableLineIterator::determineTopologicalElement(
- RenderTableCell *oldCell, RenderObject *newObject, bool toBegin)
-{
- // When we arrive here, a transition between cells has happened.
- // Now determine the type of the transition. This can be
- // (1) a transition from this cell into a table inside this cell.
- // (2) a transition from this cell into another cell of this table
-
- TableRowIterator it;
-
- RenderObject *commonAncestor = commonAncestorTableSectionOrCell(oldCell, newObject);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << " ancestor " << commonAncestor << endl;
-#endif
-
- // The whole document is treated as a table cell.
- if (!commonAncestor || commonAncestor->isTableCell()) { // (1)
-
- RenderTableCell *cell = static_cast<RenderTableCell *>(commonAncestor);
- RenderTable *table = findFirstDescendantTable(newObject, cell);
-
-#if DEBUG_CARETMODE > 0
- kdDebug(6201) << "table cell: " << cell << endl;
-#endif
-
- // if there is no table, we fell out of the previous table, and are now
- // in some table-less block. Therefore, done.
- if (!table) return;
-
- it = TableRowIterator(table, toBegin);
-
- } else if (commonAncestor->isTableSection()) { // (2)
-
- RenderTableSection *section = static_cast<RenderTableSection *>(commonAncestor);
- RenderTableSection::RowStruct *row;
- int idx = findRowInSection(section, oldCell, row, oldCell);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "table section: row idx " << idx << endl;
-#endif
-
- it = TableRowIterator(section, idx);
-
- // advance rowspan rows
- int rowspan = oldCell->rowSpan();
- while (*it && rowspan--) {
- if (toBegin) --it; else ++it;
- }/*wend*/
-
- } else {
- kdError(6201) << "Neither common cell nor section! " << commonAncestor->renderName() << endl;
- // will crash on uninitialized table row iterator
- }/*end if*/
-
- RenderTableCell *cell = findNearestTableCell(lines->m_part, xCoor, it, toBegin);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "findNearestTableCell result: " << cell << endl;
-#endif
-
- RenderBlock *newBlock = cell;
- if (!cell) {
- Q_ASSERT(commonAncestor->isTableSection());
- RenderTableSection *section = static_cast<RenderTableSection *>(commonAncestor);
- cell = containingTableCell(section);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "containing cell: " << cell << endl;
-#endif
-
- RenderTable *nestedTable;
- bool editableChild = cell && containsEditableChildElement(lines->m_part,
- cell, nestedTable, toBegin, section->table());
-
- if (cell && !editableChild) {
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "========= recursive invocation outer =========" << endl;
-#endif
- determineTopologicalElement(cell, cell->section(), toBegin);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "========= end recursive invocation outer =========" << endl;
-#endif
- return;
-
- } else if (cell && nestedTable) {
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "========= recursive invocation inner =========" << endl;
-#endif
- determineTopologicalElement(cell, nestedTable, toBegin);
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "========= end recursive invocation inner =========" << endl;
-#endif
- return;
-
- } else {
-#if DEBUG_CARETMODE > 1
- kdDebug(6201) << "newBlock is table: " << section->table() << endl;
-#endif
- RenderObject *r = section->table();
- int state; // not used
- ObjectTraversalState trav = OutsideAscending;
- r = advanceSuitableObject(r, trav, toBegin, lines->baseObject(), state);
- if (!r) { cbl = 0; return; }
-// if (toBegin) prevBlock(); else nextBlock();
- newBlock = static_cast<RenderBlock *>(!r || r->isRenderBlock() ? r : r->containingBlock());
- }/*end if*/
-#if 0
- } else {
- // adapt cell so that prevBlock/nextBlock works as expected
- newBlock = cell;
- // on forward advancing, we must start from the outside end of the
- // previous object
- if (!toBegin) {
- RenderObject *r = newBlock;
- int state; // not used
- ObjectTraversalState trav = OutsideAscending;
- r = advanceSuitableObject(r, trav, true, lines->advancePolicy(), lines->baseObject(), state);
- newBlock = static_cast<RenderBlock *>(!r || r->isRenderBlock() ? r : r->containingBlock());
- }/*end if*/
-#endif
- }/*end if*/
-
- calcAndStoreNewLine(newBlock, toBegin);
-}
-
-ErgonomicEditableLineIterator &ErgonomicEditableLineIterator::operator ++()
-{
- RenderTableCell *oldCell = containingTableCell(cbl->enclosingObject());
-
- EditableLineIterator::operator ++();
- if (*this == lines->end() || *this == lines->preBegin()) return *this;
-
- RenderTableCell *newCell = containingTableCell(cbl->enclosingObject());
-
- if (!newCell || newCell == oldCell) return *this;
-
- determineTopologicalElement(oldCell, newCell, false);
-
- return *this;
-}
-
-ErgonomicEditableLineIterator &ErgonomicEditableLineIterator::operator --()
-{
- RenderTableCell *oldCell = containingTableCell(cbl->enclosingObject());
-
- EditableLineIterator::operator --();
- if (*this == lines->end() || *this == lines->preBegin()) return *this;
-
- RenderTableCell *newCell = containingTableCell(cbl->enclosingObject());
-
- if (!newCell || newCell == oldCell) return *this;
-
- determineTopologicalElement(oldCell, newCell, true);
-
- return *this;
-}
-
-// == Navigational helper functions ==
-
-/** seeks the caret box which contains or is the nearest to @p x
- * @param it line iterator pointing to line to be searched
- * @param cv caret view context
- * @param x returns the cv->origX approximation, relatively positioned to the
- * containing block.
- * @param absx returns absolute x-coordinate of containing block
- * @param absy returns absolute y-coordinate of containing block
- * @return the most suitable caret box
- */
-static CaretBox *nearestCaretBox(LineIterator &it, CaretViewContext *cv,
- int &x, int &absx, int &absy)
-{
- // Find containing block
- RenderObject *cb = (*it)->containingBlock();
-#if DEBUG_CARETMODE > 4
- kdDebug(6200) << "nearestCB: cb " << cb << "@" << (cb ? cb->renderName() : "") << endl;
-#endif
-
- if (cb) cb->absolutePosition(absx, absy);
- else absx = absy = 0;
-
- // Otherwise find out in which inline box the caret is to be placed.
-
- // this horizontal position is to be approximated
- x = cv->origX - absx;
- CaretBox *caretBox = 0; // Inline box containing the caret
-// NodeImpl *lastnode = 0; // node of previously checked render object.
- int xPos; // x-coordinate of current inline box
- int oldXPos = -1; // x-coordinate of last inline box
- EditableCaretBoxIterator fbit = it;
-#if DEBUG_CARETMODE > 0
-/* if (it.linearDocument()->advancePolicy() != LeafsOnly)
- kdWarning() << "nearestInlineBox is only prepared to handle the LeafsOnly advance policy" << endl;*/
-// kdDebug(6200) << "*fbit = " << *fbit << endl;
-#endif
- // Iterate through all children
- for (CaretBox *b; fbit != (*it)->end(); ++fbit) {
- b = *fbit;
-
-#if DEBUG_CARETMODE > 0
-// RenderObject *r = b->object();
-// if (b->isInlineFlowBox()) kdDebug(6200) << "b is inline flow box" << endl;
-// kdDebug(6200) << "approximate r" << r << ": " << (r ? r->renderName() : TQString::null) << (r && r->isText() ? " contains \"" + TQString(((RenderText *)r)->str->s, ((RenderText *)r)->str->l) + "\"" : TQString::null) << endl;
-#endif
- xPos = b->xPos();
-
- // the caret is before this box
- if (x < xPos) {
- // snap to nearest box
- if (oldXPos < 0 || x - (oldXPos + caretBox->width()) > xPos - x) {
- caretBox = b; // current box is nearer
- }/*end if*/
- break; // Otherwise, preceding box is implicitly used
- }
-
- caretBox = b;
-
- // the caret is within this box
- if (x >= xPos && x < xPos + caretBox->width())
- break;
- oldXPos = xPos;
-
- // the caret can only be after the last box which is automatically
- // contained in caretBox when we fall out of the loop.
- }/*next fbit*/
-
- return caretBox;
-}
-
-/** moves the given iterator to the beginning of the next word.
- *
- * If the end is reached, the iterator will be positioned there.
- * @param it character iterator to be moved
- */
-static void moveItToNextWord(EditableCharacterIterator &it)
-{
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "%%%%%%%%%%%%%%%%%%%%% moveItToNextWord" << endl;
-#endif
- EditableCharacterIterator copy;
- while (!it.isEnd() && !(*it).isSpace() && !(*it).isPunct()) {
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "reading1 '" << (*it).latin1() << "'" << endl;
-#endif
- copy = it;
- ++it;
- }
-
- if (it.isEnd()) {
- it = copy;
- return;
- }/*end if*/
-
- while (!it.isEnd() && ((*it).isSpace() || (*it).isPunct())) {
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "reading2 '" << (*it).latin1() << "'" << endl;
-#endif
- copy = it;
- ++it;
- }
-
- if (it.isEnd()) it = copy;
-}
-
-/** moves the given iterator to the beginning of the previous word.
- *
- * If the beginning is reached, the iterator will be positioned there.
- * @param it character iterator to be moved
- */
-static void moveItToPrevWord(EditableCharacterIterator &it)
-{
- if (it.isEnd()) return;
-
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << "%%%%%%%%%%%%%%%%%%%%% moveItToPrevWord" << endl;
-#endif
- EditableCharacterIterator copy;
-
- // Jump over all space and punctuation characters first
- do {
- copy = it;
- --it;
-#if DEBUG_CARETMODE > 2
- if (!it.isEnd()) kdDebug(6200) << "reading1 '" << (*it).latin1() << "'" << endl;
-#endif
- } while (!it.isEnd() && ((*it).isSpace() || (*it).isPunct()));
-
- if (it.isEnd()) {
- it = copy;
- return;
- }/*end if*/
-
- do {
- copy = it;
- --it;
-#if DEBUG_CARETMODE > 0
- if (!it.isEnd()) kdDebug(6200) << "reading2 '" << (*it).latin1() << "' (" << (int)(*it).latin1() << ") box " << it.caretBox() << endl;
-#endif
- } while (!it.isEnd() && !(*it).isSpace() && !(*it).isPunct());
-
- it = copy;
-#if DEBUG_CARETMODE > 1
- if (!it.isEnd()) kdDebug(6200) << "effective '" << (*it).latin1() << "' (" << (int)(*it).latin1() << ") box " << it.caretBox() << endl;
-#endif
-}
-
-/** moves the iterator by one page.
- * @param ld linear document
- * @param it line iterator, will be updated accordingly
- * @param mindist minimum distance in pixel the iterator should be moved
- * (if possible)
- * @param next @p true, move downward, @p false move upward
- */
-static void moveIteratorByPage(LinearDocument &ld,
- ErgonomicEditableLineIterator &it, int mindist, bool next)
-{
- // ### This whole routine plainly sucks. Use an inverse strategie for pgup/pgdn.
-
- if (it == ld.end() || it == ld.preBegin()) return;
-
- ErgonomicEditableLineIterator copy = it;
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << " mindist: " << mindist << endl;
-#endif
-
- CaretBoxLine *cbl = *copy;
- int absx = 0, absy = 0;
-
- RenderBlock *lastcb = cbl->containingBlock();
- Q_ASSERT(lastcb->isRenderBlock());
- lastcb->absolutePosition(absx, absy, false); // ### what about fixed?
-
- int lastfby = cbl->begin().data()->yPos();
- int lastheight = 0;
- int rescue = 1000; // ### this is a hack to keep stuck carets from hanging the ua
- do {
- if (next) ++copy; else --copy;
- if (copy == ld.end() || copy == ld.preBegin()) break;
-
- cbl = *copy;
- RenderBlock *cb = cbl->containingBlock();
-
- int diff = 0;
- // ### actually flowBox->yPos() should suffice, but this is not ported
- // over yet from WebCore
- int fby = cbl->begin().data()->yPos();
- if (cb != lastcb) {
- if (next) {
- diff = absy + lastfby + lastheight;
- cb->absolutePosition(absx, absy, false); // ### what about fixed?
- diff = absy - diff + fby;
- lastfby = 0;
- } else {
- diff = absy;
- cb->absolutePosition(absx, absy, false); // ### what about fixed?
- diff -= absy + fby + lastheight;
- lastfby = fby - lastheight;
- }/*end if*/
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "absdiff " << diff << endl;
-#endif
- } else {
- diff = kAbs(fby - lastfby);
- }/*end if*/
-#if DEBUG_CARETMODE > 2
- kdDebug(6200) << "cbl->begin().data()->yPos(): " << fby << " diff " << diff << endl;
-#endif
-
- mindist -= diff;
-
- lastheight = kAbs(fby - lastfby);
- lastfby = fby;
- lastcb = cb;
- it = copy;
-#if DEBUG_CARETMODE > 0
- kdDebug(6200) << " mindist: " << mindist << endl;
-#endif
- // trick: actually the distance is always one line short, but we cannot
- // calculate the height of the first line (### WebCore will make it better)
- // Therefore, we simply approximate that excess line by using the last
- // caluculated line height.
- } while (mindist - lastheight > 0 && --rescue);
-}
-
-
-}/*end namespace*/