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List:       kde-commits
Subject:    koffice/kpresenter/part
From:       Matus Hanzes <matus.hanzes () ixonos ! com>
Date:       2010-11-16 9:48:57
Message-ID: 20101116094857.6443CAC8A2 () svn ! kde ! org
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SVN commit 1197608 by hanzes:

Added support for hyperlinks in kpresenter presentation mode

 M  +54 -1     KPrPresentationTool.cpp  
 M  +14 -0     KPrPresentationTool.h  


--- trunk/koffice/kpresenter/part/KPrPresentationTool.cpp #1197607:1197608
@@ -28,12 +28,17 @@
 #include <QtGui/QVBoxLayout>
 #include <QtGui/QPainter>
 #include <QKeyEvent>
+#include <qabstracttextdocumentlayout.h>
+#include <qcursor.h>
+#include <qdesktopservices.h>
+#include <qurl.h>
 
 #include <KoShape.h>
 #include <KoShapeManager.h>
 #include <KoPointerEvent.h>
 #include <KoEventAction.h>
 #include <KoPACanvas.h>
+#include <KoTextShapeData.h>
 
 #include "KPrViewModePresentation.h"
 #include "KPrPresentationStrategy.h"
@@ -97,6 +102,12 @@
         finishEventActions();
         KoShape * shapeClicked = canvas()->shapeManager()->shapeAt( event->point );
         if (shapeClicked) {
+            QString link;
+            if (checkHyperlink(event, shapeClicked, link)) {
+                runHyperlink(link);
+                return;
+            }
+
             m_eventActions = shapeClicked->eventActions();
             if (!m_eventActions.isEmpty()) {
                 foreach ( KoEventAction * eventAction, m_eventActions ) {
@@ -122,9 +133,17 @@
 
 void KPrPresentationTool::mouseMoveEvent( KoPointerEvent *event )
 {
-    Q_UNUSED(event);
+    KoShape * shape = canvas()->shapeManager()->shapeAt(event->point);
+
+    QString link;
+    if (checkHyperlink(event, shape, link)) {
+        canvas()->setCursor(Qt::PointingHandCursor);
+        return;
 }
 
+    canvas()->setCursor(Qt::ArrowCursor);
+}
+
 void KPrPresentationTool::mouseReleaseEvent( KoPointerEvent *event )
 {
     Q_UNUSED(event);
@@ -268,6 +287,40 @@
     return false;
 }
 
+bool KPrPresentationTool::checkHyperlink(KoPointerEvent *event, KoShape *shape, QString & hyperLink)
+{
+    if (!shape) {
+        return false;
+    }
+
+    KoTextShapeData *textShapeData = qobject_cast<KoTextShapeData*>(shape->userData());
+    if (textShapeData) {
+        QPointF p = shape->absoluteTransformation(0).inverted().map(event->point);
+        p = p + QPointF(0.0, textShapeData->documentOffset());
+
+        int caretPos = textShapeData->document()->documentLayout()->hitTest(p, Qt::ExactHit);
+
+        if (textShapeData->endPosition() != -1 && caretPos != -1) {
+            QTextCursor mouseOver(textShapeData->document());
+            mouseOver.setPosition(caretPos);
+
+            QTextCharFormat fmt = mouseOver.charFormat();
+            hyperLink = fmt.anchorHref();
+            if (!hyperLink.isEmpty()) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+void KPrPresentationTool::runHyperlink(QString hyperLink)
+{
+    QUrl url = QUrl::fromUserInput(hyperLink);
+
+    QDesktopServices::openUrl(url);
+}
+
 KPrPresentationStrategyBase *KPrPresentationTool::strategy()
 {
     return m_strategy;
--- trunk/koffice/kpresenter/part/KPrPresentationTool.h #1197607:1197608
@@ -71,6 +71,20 @@
     void switchStrategy( KPrPresentationStrategyBase * strategy );
     bool eventFilter( QObject * obj, QEvent * event );
 
+    /**
+     * Returns true if shape is a TextShape and event->point is over hyperlink
+     * @param event the mouse event
+     * @param shape the shape fhich is searched for hyperlink
+     * @param hyperLink the string which is filled with hyperlink url
+     */
+    bool checkHyperlink(KoPointerEvent *event, KoShape * shape, QString & hyperLink);
+
+    /**
+     * Runs url string defined inside hyperlink
+     * @param hyperLink the hyperlink string
+     */
+    void runHyperlink(QString hyperLink);
+
     KPrViewModePresentation & m_viewMode;
     QSet<KoEventAction *> m_eventActions;
 
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