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add some extra smarts about when to paint immediately.

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5291 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
John Levon 2002-09-12 16:02:28 +00:00
parent c2faf7df76
commit be865e22f2
3 changed files with 23 additions and 10 deletions
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5
src/frontends/qt2/ChangeLog
View File

@ -1,3 +1,8 @@
2002-09-12 John Levon <levon@movementarian.org>
* qscreen.h:
* qscreen.C: be even smarter about repaint() vs. update()
2002-09-12 John Levon <levon@movementarian.org>
* QPrint.C: don't reset unless different buffer

25
src/frontends/qt2/qscreen.C
View File

@ -146,17 +146,19 @@ void QScreen::hideCursor()
}
void QScreen::repaint()
{
QWidget * content(owner_.getContent());
content->repaint(0, 0, content->width(), content->height());
}
void QScreen::expose(int x, int y, int w, int h)
{
lyxerr[Debug::GUI] << "expose " << w << "x" << h
<< "+" << x << "+" << y << endl;
// 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);
owner_.getContent()->update(x, y, w, h);
}
@ -172,9 +174,12 @@ void QScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
bool const internal = (text == bv->text);
text->first_y = y;
// If you want to fix the warning below, fix it so it
// actually scrolls properly. Hint: a cast won't do.
// is any optimization possible?
if ((y - old_first) < owner_.workHeight()
&& (old_first - y) < owner_.workHeight()) {
if (y - old_first < owner_.workHeight()
&& old_first - y < owner_.workHeight()) {
if (text->first_y < old_first) {
int const dest_y = old_first - text->first_y;
drawFromTo(text, bv, 0, dest_y, 0, 0, internal);
@ -187,9 +192,9 @@ void QScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
expose(0, owner_.height() - src_y, owner_.workWidth(), src_y);
}
} else {
// make a dumb redraw
lyxerr[Debug::GUI] << "dumb full redraw" << endl;
drawFromTo(text, bv, 0, owner_.height(), 0, 0, internal);
expose(0, 0, owner_.workWidth(), owner_.height());
repaint();
}
owner_.getPainter().end();

3
src/frontends/qt2/qscreen.h
View File

@ -58,6 +58,9 @@ protected:
/// get the work area
virtual WorkArea & workarea() const { return owner_; }
/// repaint the whole content immediately
void repaint();
/// copies specified area of pixmap to screen
virtual void expose(int x, int y, int exp_width, int exp_height);