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-rw-r--r--kdeui/kpopupmenu.cpp689
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diff --git a/kdeui/kpopupmenu.cpp b/kdeui/kpopupmenu.cpp
new file mode 100644
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+++ b/kdeui/kpopupmenu.cpp
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+/* This file is part of the KDE libraries
+ Copyright (C) 2000 Daniel M. Duley <mosfet@kde.org>
+ Copyright (C) 2002 Hamish Rodda <rodda@kde.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ 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 <qcursor.h>
+#include <qpainter.h>
+#include <qtimer.h>
+#include <qfontmetrics.h>
+#include <qstyle.h>
+
+#include "kpopupmenu.h"
+
+#include <kdebug.h>
+#include <kapplication.h>
+
+KPopupTitle::KPopupTitle(QWidget *parent, const char *name)
+ : QWidget(parent, name)
+{
+ setMinimumSize(16, fontMetrics().height()+8);
+}
+
+KPopupTitle::KPopupTitle(KPixmapEffect::GradientType /* gradient */,
+ const QColor &/* color */, const QColor &/* textColor */,
+ QWidget *parent, const char *name)
+ : QWidget(parent, name)
+{
+ calcSize();
+}
+
+KPopupTitle::KPopupTitle(const KPixmap & /* background */, const QColor &/* color */,
+ const QColor &/* textColor */, QWidget *parent,
+ const char *name)
+ : QWidget(parent, name)
+{
+ calcSize();
+}
+
+void KPopupTitle::setTitle(const QString &text, const QPixmap *icon)
+{
+ titleStr = text;
+ if (icon)
+ miniicon = *icon;
+ else
+ miniicon.resize(0, 0);
+
+ calcSize();
+}
+
+void KPopupTitle::setText( const QString &text )
+{
+ titleStr = text;
+ calcSize();
+}
+
+void KPopupTitle::setIcon( const QPixmap &pix )
+{
+ miniicon = pix;
+ calcSize();
+}
+
+void KPopupTitle::calcSize()
+{
+ QFont f = font();
+ f.setBold(true);
+ int w = miniicon.width()+QFontMetrics(f).width(titleStr);
+ int h = QMAX( fontMetrics().height(), miniicon.height() );
+ setMinimumSize( w+16, h+8 );
+}
+
+void KPopupTitle::paintEvent(QPaintEvent *)
+{
+ QRect r(rect());
+ QPainter p(this);
+ kapp->style().drawPrimitive(QStyle::PE_HeaderSection, &p, r, palette().active());
+
+ if (!miniicon.isNull())
+ p.drawPixmap(4, (r.height()-miniicon.height())/2, miniicon);
+
+ if (!titleStr.isNull())
+ {
+ p.setPen(palette().active().text());
+ QFont f = p.font();
+ f.setBold(true);
+ p.setFont(f);
+ if(!miniicon.isNull())
+ {
+ p.drawText(miniicon.width()+8, 0, width()-(miniicon.width()+8),
+ height(), AlignLeft | AlignVCenter | SingleLine,
+ titleStr);
+ }
+ else
+ {
+ p.drawText(0, 0, width(), height(),
+ AlignCenter | SingleLine, titleStr);
+ }
+ }
+}
+
+QSize KPopupTitle::sizeHint() const
+{
+ return minimumSize();
+}
+
+class KPopupMenu::KPopupMenuPrivate
+{
+public:
+ KPopupMenuPrivate ()
+ : noMatches(false)
+ , shortcuts(false)
+ , autoExec(false)
+ , lastHitIndex(-1)
+ , state(Qt::NoButton)
+ , m_ctxMenu(0)
+ {}
+
+ ~KPopupMenuPrivate ()
+ {
+ delete m_ctxMenu;
+ }
+
+ QString m_lastTitle;
+
+ // variables for keyboard navigation
+ QTimer clearTimer;
+
+ bool noMatches : 1;
+ bool shortcuts : 1;
+ bool autoExec : 1;
+
+ QString keySeq;
+ QString originalText;
+
+ int lastHitIndex;
+ Qt::ButtonState state;
+
+ // support for RMB menus on menus
+ QPopupMenu* m_ctxMenu;
+ static bool s_continueCtxMenuShow;
+ static int s_highlightedItem;
+ static KPopupMenu* s_contextedMenu;
+};
+
+int KPopupMenu::KPopupMenuPrivate::s_highlightedItem(-1);
+KPopupMenu* KPopupMenu::KPopupMenuPrivate::s_contextedMenu(0);
+bool KPopupMenu::KPopupMenuPrivate::s_continueCtxMenuShow(true);
+
+KPopupMenu::KPopupMenu(QWidget *parent, const char *name)
+ : QPopupMenu(parent, name)
+{
+ d = new KPopupMenuPrivate;
+ resetKeyboardVars();
+ connect(&(d->clearTimer), SIGNAL(timeout()), SLOT(resetKeyboardVars()));
+}
+
+KPopupMenu::~KPopupMenu()
+{
+ if (KPopupMenuPrivate::s_contextedMenu == this)
+ {
+ KPopupMenuPrivate::s_contextedMenu = 0;
+ KPopupMenuPrivate::s_highlightedItem = -1;
+ }
+
+ delete d;
+}
+
+int KPopupMenu::insertTitle(const QString &text, int id, int index)
+{
+ KPopupTitle *titleItem = new KPopupTitle();
+ titleItem->setTitle(text);
+ int ret = insertItem(titleItem, id, index);
+ setItemEnabled(ret, false);
+ return ret;
+}
+
+int KPopupMenu::insertTitle(const QPixmap &icon, const QString &text, int id,
+ int index)
+{
+ KPopupTitle *titleItem = new KPopupTitle();
+ titleItem->setTitle(text, &icon);
+ int ret = insertItem(titleItem, id, index);
+ setItemEnabled(ret, false);
+ return ret;
+}
+
+void KPopupMenu::changeTitle(int id, const QString &text)
+{
+ QMenuItem *item = findItem(id);
+ if(item){
+ if(item->widget())
+ ((KPopupTitle *)item->widget())->setTitle(text);
+#ifndef NDEBUG
+ else
+ kdWarning() << "KPopupMenu: changeTitle() called with non-title id "<< id << endl;
+#endif
+ }
+#ifndef NDEBUG
+ else
+ kdWarning() << "KPopupMenu: changeTitle() called with invalid id " << id << endl;
+#endif
+}
+
+void KPopupMenu::changeTitle(int id, const QPixmap &icon, const QString &text)
+{
+ QMenuItem *item = findItem(id);
+ if(item){
+ if(item->widget())
+ ((KPopupTitle *)item->widget())->setTitle(text, &icon);
+#ifndef NDEBUG
+ else
+ kdWarning() << "KPopupMenu: changeTitle() called with non-title id "<< id << endl;
+#endif
+ }
+#ifndef NDEBUG
+ else
+ kdWarning() << "KPopupMenu: changeTitle() called with invalid id " << id << endl;
+#endif
+}
+
+QString KPopupMenu::title(int id) const
+{
+ if(id == -1) // obsolete
+ return d->m_lastTitle;
+ QMenuItem *item = findItem(id);
+ if(item){
+ if(item->widget())
+ return ((KPopupTitle *)item->widget())->title();
+ else
+ qWarning("KPopupMenu: title() called with non-title id %d.", id);
+ }
+ else
+ qWarning("KPopupMenu: title() called with invalid id %d.", id);
+ return QString::null;
+}
+
+QPixmap KPopupMenu::titlePixmap(int id) const
+{
+ QMenuItem *item = findItem(id);
+ if(item){
+ if(item->widget())
+ return ((KPopupTitle *)item->widget())->icon();
+ else
+ qWarning("KPopupMenu: titlePixmap() called with non-title id %d.", id);
+ }
+ else
+ qWarning("KPopupMenu: titlePixmap() called with invalid id %d.", id);
+ QPixmap tmp;
+ return tmp;
+}
+
+/**
+ * This is re-implemented for keyboard navigation.
+ */
+void KPopupMenu::closeEvent(QCloseEvent*e)
+{
+ if (d->shortcuts)
+ resetKeyboardVars();
+ QPopupMenu::closeEvent(e);
+}
+
+void KPopupMenu::activateItemAt(int index)
+{
+ d->state = Qt::NoButton;
+ QPopupMenu::activateItemAt(index);
+}
+
+Qt::ButtonState KPopupMenu::state() const
+{
+ return d->state;
+}
+
+void KPopupMenu::keyPressEvent(QKeyEvent* e)
+{
+ d->state = Qt::NoButton;
+ if (!d->shortcuts) {
+ // continue event processing by Qpopup
+ //e->ignore();
+ d->state = e->state();
+ QPopupMenu::keyPressEvent(e);
+ return;
+ }
+
+ int i = 0;
+ bool firstpass = true;
+ QString keyString = e->text();
+
+ // check for common commands dealt with by QPopup
+ int key = e->key();
+ if (key == Key_Escape || key == Key_Return || key == Key_Enter
+ || key == Key_Up || key == Key_Down || key == Key_Left
+ || key == Key_Right || key == Key_F1) {
+
+ resetKeyboardVars();
+ // continue event processing by Qpopup
+ //e->ignore();
+ d->state = e->state();
+ QPopupMenu::keyPressEvent(e);
+ return;
+ } else if ( key == Key_Shift || key == Key_Control || key == Key_Alt || key == Key_Meta )
+ return QPopupMenu::keyPressEvent(e);
+
+ // check to see if the user wants to remove a key from the sequence (backspace)
+ // or clear the sequence (delete)
+ if (!d->keySeq.isNull()) {
+
+ if (key == Key_Backspace) {
+
+ if (d->keySeq.length() == 1) {
+ resetKeyboardVars();
+ return;
+ }
+
+ // keep the last sequence in keyString
+ keyString = d->keySeq.left(d->keySeq.length() - 1);
+
+ // allow sequence matching to be tried again
+ resetKeyboardVars();
+
+ } else if (key == Key_Delete) {
+ resetKeyboardVars();
+
+ // clear active item
+ setActiveItem(0);
+ return;
+
+ } else if (d->noMatches) {
+ // clear if there are no matches
+ resetKeyboardVars();
+
+ // clear active item
+ setActiveItem(0);
+
+ } else {
+ // the key sequence is not a null string
+ // therefore the lastHitIndex is valid
+ i = d->lastHitIndex;
+ }
+ } else if (key == Key_Backspace && parentMenu) {
+ // backspace with no chars in the buffer... go back a menu.
+ hide();
+ resetKeyboardVars();
+ return;
+ }
+
+ d->keySeq += keyString;
+ int seqLen = d->keySeq.length();
+
+ for (; i < (int)count(); i++) {
+ // compare typed text with text of this entry
+ int j = idAt(i);
+
+ // don't search disabled entries
+ if (!isItemEnabled(j))
+ continue;
+
+ QString thisText;
+
+ // retrieve the right text
+ // (the last selected item one may have additional ampersands)
+ if (i == d->lastHitIndex)
+ thisText = d->originalText;
+ else
+ thisText = text(j);
+
+ // if there is an accelerator present, remove it
+ if ((int)accel(j) != 0)
+ thisText = thisText.replace("&", QString::null);
+
+ // chop text to the search length
+ thisText = thisText.left(seqLen);
+
+ // do the search
+ if (!thisText.find(d->keySeq, 0, false)) {
+
+ if (firstpass) {
+ // match
+ setActiveItem(i);
+
+ // check to see if we're underlining a different item
+ if (d->lastHitIndex != i)
+ // yes; revert the underlining
+ changeItem(idAt(d->lastHitIndex), d->originalText);
+
+ // set the original text if it's a different item
+ if (d->lastHitIndex != i || d->lastHitIndex == -1)
+ d->originalText = text(j);
+
+ // underline the currently selected item
+ changeItem(j, underlineText(d->originalText, d->keySeq.length()));
+
+ // remember what's going on
+ d->lastHitIndex = i;
+
+ // start/restart the clear timer
+ d->clearTimer.start(5000, true);
+
+ // go around for another try, to see if we can execute
+ firstpass = false;
+ } else {
+ // don't allow execution
+ return;
+ }
+ }
+
+ // fall through to allow execution
+ }
+
+ if (!firstpass) {
+ if (d->autoExec) {
+ // activate anything
+ activateItemAt(d->lastHitIndex);
+ resetKeyboardVars();
+
+ } else if (findItem(idAt(d->lastHitIndex)) &&
+ findItem(idAt(d->lastHitIndex))->popup()) {
+ // only activate sub-menus
+ activateItemAt(d->lastHitIndex);
+ resetKeyboardVars();
+ }
+
+ return;
+ }
+
+ // no matches whatsoever, clean up
+ resetKeyboardVars(true);
+ //e->ignore();
+ QPopupMenu::keyPressEvent(e);
+}
+
+bool KPopupMenu::focusNextPrevChild( bool next )
+{
+ resetKeyboardVars();
+ return QPopupMenu::focusNextPrevChild( next );
+}
+
+QString KPopupMenu::underlineText(const QString& text, uint length)
+{
+ QString ret = text;
+ for (uint i = 0; i < length; i++) {
+ if (ret[2*i] != '&')
+ ret.insert(2*i, "&");
+ }
+ return ret;
+}
+
+void KPopupMenu::resetKeyboardVars(bool noMatches /* = false */)
+{
+ // Clean up keyboard variables
+ if (d->lastHitIndex != -1) {
+ changeItem(idAt(d->lastHitIndex), d->originalText);
+ d->lastHitIndex = -1;
+ }
+
+ if (!noMatches) {
+ d->keySeq = QString::null;
+ }
+
+ d->noMatches = noMatches;
+}
+
+void KPopupMenu::setKeyboardShortcutsEnabled(bool enable)
+{
+ d->shortcuts = enable;
+}
+
+void KPopupMenu::setKeyboardShortcutsExecute(bool enable)
+{
+ d->autoExec = enable;
+}
+/**
+ * End keyboard navigation.
+ */
+
+/**
+ * RMB menus on menus
+ */
+
+void KPopupMenu::mousePressEvent(QMouseEvent* e)
+{
+ if (d->m_ctxMenu && d->m_ctxMenu->isVisible())
+ {
+ // hide on a second context menu event
+ d->m_ctxMenu->hide();
+ }
+
+ QPopupMenu::mousePressEvent(e);
+}
+
+void KPopupMenu::mouseReleaseEvent(QMouseEvent* e)
+{
+ // Save the button, and the modifiers from state()
+ d->state = Qt::ButtonState(e->button() | (e->state() & KeyButtonMask));
+
+ if ( !d->m_ctxMenu || !d->m_ctxMenu->isVisible() )
+ QPopupMenu::mouseReleaseEvent(e);
+}
+
+QPopupMenu* KPopupMenu::contextMenu()
+{
+ if (!d->m_ctxMenu)
+ {
+ d->m_ctxMenu = new QPopupMenu(this);
+ connect(d->m_ctxMenu, SIGNAL(aboutToHide()), this, SLOT(ctxMenuHiding()));
+ }
+
+ return d->m_ctxMenu;
+}
+
+const QPopupMenu* KPopupMenu::contextMenu() const
+{
+ return const_cast< KPopupMenu* >( this )->contextMenu();
+}
+
+void KPopupMenu::hideContextMenu()
+{
+ KPopupMenuPrivate::s_continueCtxMenuShow = false;
+}
+
+int KPopupMenu::contextMenuFocusItem()
+{
+ return KPopupMenuPrivate::s_highlightedItem;
+}
+
+KPopupMenu* KPopupMenu::contextMenuFocus()
+{
+ return KPopupMenuPrivate::s_contextedMenu;
+}
+
+void KPopupMenu::itemHighlighted(int /* whichItem */)
+{
+ if (!d->m_ctxMenu || !d->m_ctxMenu->isVisible())
+ {
+ return;
+ }
+
+ d->m_ctxMenu->hide();
+ showCtxMenu(mapFromGlobal(QCursor::pos()));
+}
+
+void KPopupMenu::showCtxMenu(QPoint pos)
+{
+ QMenuItem* item = findItem(KPopupMenuPrivate::s_highlightedItem);
+ if (item)
+ {
+ QPopupMenu* subMenu = item->popup();
+ if (subMenu)
+ {
+ disconnect(subMenu, SIGNAL(aboutToShow()), this, SLOT(ctxMenuHideShowingMenu()));
+ }
+ }
+
+ KPopupMenuPrivate::s_highlightedItem = idAt(pos);
+
+ if (KPopupMenuPrivate::s_highlightedItem == -1)
+ {
+ KPopupMenuPrivate::s_contextedMenu = 0;
+ return;
+ }
+
+ emit aboutToShowContextMenu(this, KPopupMenuPrivate::s_highlightedItem, d->m_ctxMenu);
+
+ QPopupMenu* subMenu = findItem(KPopupMenuPrivate::s_highlightedItem)->popup();
+ if (subMenu)
+ {
+ connect(subMenu, SIGNAL(aboutToShow()), SLOT(ctxMenuHideShowingMenu()));
+ QTimer::singleShot(100, subMenu, SLOT(hide()));
+ }
+
+ if (!KPopupMenuPrivate::s_continueCtxMenuShow)
+ {
+ KPopupMenuPrivate::s_continueCtxMenuShow = true;
+ return;
+ }
+
+ KPopupMenuPrivate::s_contextedMenu = this;
+ d->m_ctxMenu->popup(this->mapToGlobal(pos));
+ connect(this, SIGNAL(highlighted(int)), this, SLOT(itemHighlighted(int)));
+}
+
+/*
+ * this method helps prevent submenus popping up while we have a context menu
+ * showing
+ */
+void KPopupMenu::ctxMenuHideShowingMenu()
+{
+ QMenuItem* item = findItem(KPopupMenuPrivate::s_highlightedItem);
+ if (item)
+ {
+ QPopupMenu* subMenu = item->popup();
+ if (subMenu)
+ {
+ QTimer::singleShot(0, subMenu, SLOT(hide()));
+ }
+ }
+}
+
+void KPopupMenu::ctxMenuHiding()
+{
+ if (KPopupMenuPrivate::s_highlightedItem)
+ {
+ QPopupMenu* subMenu = findItem(KPopupMenuPrivate::s_highlightedItem)->popup();
+ if (subMenu)
+ {
+ disconnect(subMenu, SIGNAL(aboutToShow()), this, SLOT(ctxMenuHideShowingMenu()));
+ }
+ }
+
+ disconnect(this, SIGNAL(highlighted(int)), this, SLOT(itemHighlighted(int)));
+ KPopupMenuPrivate::s_continueCtxMenuShow = true;
+}
+
+void KPopupMenu::contextMenuEvent(QContextMenuEvent* e)
+{
+ if (d->m_ctxMenu)
+ {
+ if (e->reason() == QContextMenuEvent::Mouse)
+ {
+ showCtxMenu(e->pos());
+ }
+ else if (actItem != -1)
+ {
+ showCtxMenu(itemGeometry(actItem).center());
+ }
+
+ e->accept();
+ return;
+ }
+
+ QPopupMenu::contextMenuEvent(e);
+}
+
+void KPopupMenu::hideEvent(QHideEvent*)
+{
+ if (d->m_ctxMenu && d->m_ctxMenu->isVisible())
+ {
+ // we need to block signals here when the ctxMenu is showing
+ // to prevent the QPopupMenu::activated(int) signal from emitting
+ // when hiding with a context menu, the user doesn't expect the
+ // menu to actually do anything.
+ // since hideEvent gets called very late in the process of hiding
+ // (deep within QWidget::hide) the activated(int) signal is the
+ // last signal to be emitted, even after things like aboutToHide()
+ // AJS
+ blockSignals(true);
+ d->m_ctxMenu->hide();
+ blockSignals(false);
+ }
+}
+/**
+ * end of RMB menus on menus support
+ */
+
+// Obsolete
+KPopupMenu::KPopupMenu(const QString& title, QWidget *parent, const char *name)
+ : QPopupMenu(parent, name)
+{
+ d = new KPopupMenuPrivate;
+ insertTitle(title);
+}
+
+// Obsolete
+void KPopupMenu::setTitle(const QString &title)
+{
+ KPopupTitle *titleItem = new KPopupTitle();
+ titleItem->setTitle(title);
+ insertItem(titleItem);
+ d->m_lastTitle = title;
+}
+
+void KPopupTitle::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+void KPopupMenu::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+#include "kpopupmenu.moc"