summaryrefslogtreecommitdiffstats
path: root/kdvi/dviWidget.cpp
diff options
context:
space:
mode:
authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kdvi/dviWidget.cpp
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kdvi/dviWidget.cpp')
-rw-r--r--kdvi/dviWidget.cpp123
1 files changed, 123 insertions, 0 deletions
diff --git a/kdvi/dviWidget.cpp b/kdvi/dviWidget.cpp
new file mode 100644
index 00000000..8475af92
--- /dev/null
+++ b/kdvi/dviWidget.cpp
@@ -0,0 +1,123 @@
+//
+// Class: DVIWidget
+//
+// Widget for displaying TeX DVI files.
+// Part of KDVI- A previewer for TeX DVI files.
+//
+// (C) 2004 Wilfried Huss, Stefan Kebekus
+// Distributed under the GPL
+//
+
+#include <config.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+
+#include "dviWidget.h"
+
+#include "documentPageCache.h"
+#include "documentWidget.h"
+#include "hyperlink.h"
+#include "pageView.h"
+#include "renderedDviPagePixmap.h"
+#include "selection.h"
+
+DVIWidget::DVIWidget(QWidget* parent, PageView* sv, DocumentPageCache* cache, const char* name)
+ : DocumentWidget(parent, sv, cache, name)
+{
+}
+
+
+void DVIWidget::mousePressEvent(QMouseEvent* e)
+{
+ // pageNr == 0 indicated an invalid page (e.g. page number not yet set)
+ if (pageNr == 0)
+ return;
+
+ // Get a pointer to the page contents
+ RenderedDviPagePixmap* pageData = dynamic_cast<RenderedDviPagePixmap*>(documentCache->getPage(pageNr));
+ if (pageData == 0)
+ {
+ kdDebug(4300) << "DVIWidget::mousePressEvent(...) pageData for page #" << pageNr << " is empty" << endl;
+ return;
+ }
+
+ // Check if the mouse is pressed on a source-hyperlink
+ // source hyperlinks can be invoked with the Middle Mousebutton or alternatively
+ // with Control+Left Mousebutton
+ if ((e->button() == MidButton || (e->button() == LeftButton && (e->state() & ControlButton)))
+ && (pageData->sourceHyperLinkList.size() > 0))
+ {
+ int minIndex = 0;
+ int minimum = 0;
+
+ for(unsigned int i=0; i<pageData->sourceHyperLinkList.size(); i++)
+ {
+ if (pageData->sourceHyperLinkList[i].box.contains(e->pos()))
+ {
+ emit(SRCLink(pageData->sourceHyperLinkList[i].linkText, e, this));
+ e->accept();
+ return;
+ }
+ // Remember the closest source link
+ QPoint center = pageData->sourceHyperLinkList[i].box.center();
+ int dx = center.x() - e->pos().x();
+ int dy = center.y() - e->pos().y();
+ if (dx*dx + dy*dy < minimum || i == 0)
+ {
+ minIndex = i;
+ minimum = dx*dx + dy*dy;
+ }
+ }
+ // If the mouse pointer is not exactly inside a source link, jump to the closest target.
+ emit(SRCLink(pageData->sourceHyperLinkList[minIndex].linkText, e, this));
+ e->accept();
+ }
+
+ // Call implementation from parent
+ DocumentWidget::mousePressEvent(e);
+}
+
+
+void DVIWidget::mouseMoveEvent(QMouseEvent* e)
+{
+ // pageNr == 0 indicated an invalid page (e.g. page number not yet set)
+ if (pageNr == 0)
+ return;
+
+ // Call the standard implementation
+ DocumentWidget::mouseMoveEvent(e);
+
+ // Analyze the mouse movement only if no mouse button was pressed
+ if ( e->state() == 0 ) {
+ // Get a pointer to the page contents
+ RenderedDviPagePixmap* pageData = dynamic_cast<RenderedDviPagePixmap*>(documentCache->getPage(pageNr));
+ if (pageData == 0) {
+ kdDebug(4300) << "DVIWidget::mouseMoveEvent(...) pageData for page #" << pageNr << " is empty" << endl;
+ return;
+ }
+
+ // Check if the cursor hovers over a sourceHyperlink.
+ for(unsigned int i=0; i<pageData->sourceHyperLinkList.size(); i++) {
+ if (pageData->sourceHyperLinkList[i].box.contains(e->pos())) {
+ clearStatusBarTimer.stop();
+
+ // The macro-package srcltx gives a special like "src:99 test.tex"
+ // while MikTeX gives "src:99test.tex". KDVI tries
+ // to understand both.
+ QString cp = pageData->sourceHyperLinkList[i].linkText;
+ int max = cp.length();
+ int i;
+ for(i=0; i<max; i++)
+ if (cp[i].isDigit() == false)
+ break;
+
+ emit setStatusBarText( i18n("line %1 of %2").arg(cp.left(i)).arg(cp.mid(i).simplifyWhiteSpace()) );
+ return;
+ }
+ }
+ }
+}
+
+
+#include "dviWidget.moc"