fix repaints etc.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5266 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt2/ChangeLog

@@ -1,3 +1,9 @@
+2002-09-11  John Levon  <levon@movementarian.org>
+
+	* qscreen.C: use repaint() not update() for immediate change
+
+	* QContentPane.C: warning fix
+ 
 2002-09-11  John Levon  <levon@movementarian.org>
 
 	* qfont_metrics.C: fix button metrics

src/frontends/qt2/QContentPane.C

@@ -160,7 +160,7 @@ void QContentPane::mouseDoubleClickEvent(QMouseEvent * e)
 	dc_event_ = double_click(e);
 
 	// doubleClickInterval() is just too long.
-	QTimer::singleShot(QApplication::doubleClickInterval() / 1.5,
+	QTimer::singleShot(int(QApplication::doubleClickInterval() / 1.5),
 		this, SLOT(doubleClickTimeout()));
 }
  

src/frontends/qt2/TODO

@@ -21,11 +21,6 @@ QCommandBuffer
 
 	- fix !! I HATE Qt
  
-QContentPane 
-
-	- figure out why a scroll doesn't update quickly, which leaves cursor artifacts
-	  whilst holding down page down etc. 
- 
 QDocument
 
 	- implement me. Need MVC (Edwin is on this)

src/frontends/qt2/qscreen.C

@@ -146,11 +146,17 @@ void QScreen::hideCursor()
 }
 
  
-void QScreen::expose(int x, int y, int exp_width, int exp_height)
+void QScreen::expose(int x, int y, int w, int h)
 {
-	lyxerr[Debug::GUI] << "expose " << exp_width << "x" << exp_height
+	lyxerr[Debug::GUI] << "expose " << w << "x" << h
 		<< "+" << x << "+" << y << endl;
-	owner_.getContent()->update(x, y, exp_width, exp_height);
+ 
+	// if we're scrolling, we want immediate paint, otherwise not.
+	QWidget * content(owner_.getContent());
+	if (content->width() == w && content->height() == h) 
+		content->repaint(x, y, w, h);
+	else
+		content->update(x, y, w, h);
 }