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Attempt to fix caching bug in track backgrounds

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1933 0778d3d1-df1d-0410-868b-ea421aaaa00d

Conflicts:
	ChangeLog.old
	src/core/track.cpp
This commit is contained in:
Paul Giblock
2008-12-15 22:55:06 +00:00
committed by Paul Giblock
parent 70304f9800
commit 642aa97198
2 changed files with 42 additions and 34 deletions
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6
ChangeLog.old
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@@ -247,6 +247,12 @@
* src/tracks/pattern.cpp:
backport: added support for panning editing of notes
2008-12-15 Paul Giblock <drfaygo/at/gmail/dot/com>
* src/core/track.cpp:
* include/track.h:
Cache background per-object instead of per-class.
2008-12-14 Tobias Doerffel <tobydox/at/users/dot/sourceforge/dot/net>
* CMakeLists.txt:

70
src/core/track.cpp
View File

@@ -895,46 +895,46 @@ void trackContentWidget::updateBackground()
// Assume even-pixels-per-tact. Makes sense, should be like this anyways
int ppt = static_cast<int>( tcv->pixelsPerTact() );
int w = ppt * tactsPerBar;
int h = height();
m_background = QPixmap( w * 2, height() );
QPainter pmp( &m_background );
int w = ppt * tactsPerBar;
int h = height();
m_background = QPixmap( w * 2, height() );
QPainter pmp( &m_background );
QLinearGradient grad( 0, 1, 0, h-2 );
pmp.fillRect( 0, 0, 1, h, QColor( 96, 96, 96 ) );
pmp.fillRect( 1, 0, w+1, h, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.0, QColor( 64, 64, 64 ) );
grad.setColorAt( 0.3, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.5, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.95, QColor( 160, 160, 160 ) );
pmp.fillRect( 0, 1, w, h-2, grad );
QLinearGradient grad( 0, 1, 0, h-2 );
pmp.fillRect( 0, 0, 1, h, QColor( 96, 96, 96 ) );
pmp.fillRect( 1, 0, w+1, h, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.0, QColor( 64, 64, 64 ) );
grad.setColorAt( 0.3, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.5, QColor( 128, 128, 128 ) );
grad.setColorAt( 0.95, QColor( 160, 160, 160 ) );
pmp.fillRect( 0, 1, w, h-2, grad );
QLinearGradient grad2( 0,1, 0, h-2 );
pmp.fillRect( w+1, 0, w , h, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.0, QColor( 48, 48, 48 ) );
grad2.setColorAt( 0.3, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.5, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.95, QColor( 120, 120, 120 ) );
pmp.fillRect( w, 1, w , h-2, grad2 );
QLinearGradient grad2( 0,1, 0, h-2 );
pmp.fillRect( w+1, 0, w , h, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.0, QColor( 48, 48, 48 ) );
grad2.setColorAt( 0.3, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.5, QColor( 96, 96, 96 ) );
grad2.setColorAt( 0.95, QColor( 120, 120, 120 ) );
pmp.fillRect( w, 1, w , h-2, grad2 );
// draw vertical lines
pmp.setPen( QPen( QColor( 0, 0, 0, 112 ), 1 ) );
for( float x = 0.5; x < w * 2; x += ppt )
{
pmp.drawLine( QLineF( x, 1.0, x, h-2.0 ) );
}
pmp.drawLine( 0, 1, w*2, 1 );
// draw vertical lines
pmp.setPen( QPen( QColor( 0, 0, 0, 112 ), 1 ) );
for( float x = 0.5; x < w * 2; x += ppt )
{
pmp.drawLine( QLineF( x, 1.0, x, h-2.0 ) );
}
pmp.drawLine( 0, 1, w*2, 1 );
pmp.setPen( QPen( QColor( 255, 255, 255, 32 ), 1 ) );
for( float x = 1.5; x < w * 2; x += ppt )
{
pmp.drawLine( QLineF( x, 1.0, x, h-2.0 ) );
}
pmp.drawLine( 0, h-2, w*2, h-2 );
pmp.setPen( QPen( QColor( 255, 255, 255, 32 ), 1 ) );
for( float x = 1.5; x < w * 2; x += ppt )
{
pmp.drawLine( QLineF( x, 1.0, x, h-2.0 ) );
}
pmp.drawLine( 0, h-2, w*2, h-2 );
pmp.end();
pmp.end();
// Force redraw
// Force redraw
update();
}
@@ -1206,7 +1206,9 @@ void trackContentWidget::paintEvent( QPaintEvent * _pe )
*/
void trackContentWidget::resizeEvent( QResizeEvent * resizeEvent )
{
// Update backgroud
updateBackground();
// Force redraw
QWidget::resizeEvent( resizeEvent );
}