diff options
Diffstat (limited to 'lib/gui/ewidgetdesktop.cpp')
| -rw-r--r-- | lib/gui/ewidgetdesktop.cpp | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/lib/gui/ewidgetdesktop.cpp b/lib/gui/ewidgetdesktop.cpp index bb6c7c39..1b5cf9b2 100644 --- a/lib/gui/ewidgetdesktop.cpp +++ b/lib/gui/ewidgetdesktop.cpp @@ -42,11 +42,10 @@ void eWidgetDesktop::calcWidgetClipRegion(eWidget *widget, gRegion &parent_visib void eWidgetDesktop::recalcClipRegions() { - gRegion screen = gRegion(eRect(ePoint(0, 0), m_screen_size)); + m_background_region = gRegion(eRect(ePoint(0, 0), m_screen_size)); for (ePtrList<eWidget>::iterator i(m_root.begin()); i != m_root.end(); ++i) - calcWidgetClipRegion(*i, screen); -// dumpRegion(screen); + calcWidgetClipRegion(*i, m_background_region); } void eWidgetDesktop::invalidate(const gRegion ®ion) @@ -56,12 +55,33 @@ void eWidgetDesktop::invalidate(const gRegion ®ion) m_dirty_region |= region; } +void eWidgetDesktop::setBackgroundColor(gColor col) +{ + m_background_color = col; + + /* if there's something visible from the background, redraw it with the new color. */ + if (m_dc && m_background_region.valid() && !m_background_region.empty()) + { + /* todo: split out "setBackgroundColor / clear"... maybe? */ + gPainter painter(m_dc); + painter.resetClip(m_background_region); + painter.setBackgroundColor(m_background_color); + painter.clear(); + } +} + void eWidgetDesktop::paint() { gPainter painter(m_dc); /* walk all root windows. */ for (ePtrList<eWidget>::iterator i(m_root.begin()); i != m_root.end(); ++i) i->doPaint(painter, m_dirty_region); + m_dirty_region &= m_background_region; + + painter.resetClip(m_dirty_region); + painter.setBackgroundColor(m_background_color); + painter.clear(); + m_dirty_region = gRegion(); } |