- invalidate background on startup

[enigma2.git] / lib / gui / ewidgetdesktop.cpp

diff --git a/lib/gui/ewidgetdesktop.cpp b/lib/gui/ewidgetdesktop.cpp
index ff91368081d1b5e234702f1b1da463081a1946cd..3a60a26ae99ea9bf845ec3043e6d0e4dfb1e938c 100644 (file)
--- a/lib/gui/ewidgetdesktop.cpp
+++ b/lib/gui/ewidgetdesktop.cpp
@@ -1,5 +1,6 @@
 #include <lib/gui/ewidgetdesktop.h>
 #include <lib/gui/ewidget.h>
+#include <lib/base/ebase.h>
 
 void eWidgetDesktop::addRootWidget(eWidget *root, int top)
 {
@@ -41,24 +42,55 @@ 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 &region)
 {
+       if (m_timer && m_dirty_region.empty())
+               m_timer->start(0, 1); // start singleshot redraw timer
        m_dirty_region |= region;
 }
 
+void eWidgetDesktop::setBackgroundColor(gRGB 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::setPalette(gPixmap &pm)
+{
+       ASSERT(m_dc);
+       gPainter painter(m_dc);
+       painter.setPalette(&pm);
+}
+
 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();
+       
+       painter.flush();
+       
        m_dirty_region = gRegion();
 }
 
@@ -67,8 +99,45 @@ void eWidgetDesktop::setDC(gDC *dc)
        m_dc = dc;
 }
 
-eWidgetDesktop::eWidgetDesktop(eSize size): m_screen_size(size)
+void eWidgetDesktop::setRedrawTask(eMainloop &ml)
+{
+       if (m_mainloop)
+       {
+               delete m_timer;
+               m_timer = 0;
+               m_mainloop = 0;
+       }
+       m_mainloop = &ml;
+       m_timer = new eTimer(m_mainloop);
+       CONNECT(m_timer->timeout, eWidgetDesktop::paint);
+       
+       if (!m_dirty_region.empty())
+               m_timer->start(0, 1);
+}
+
+void eWidgetDesktop::makeCompatiblePixmap(gPixmap &pm)
+{
+       eDebug("widgetDesktop: make compatible pixmap of %p\n", &pm);
+       if (!m_dc)
+       {
+               eWarning("eWidgetDesktop: no DC to make pixmap compatible with!");
+               return;
+       }
+
+       ePtr<gDC> pixmap_dc = new gDC(&pm);
+       gPainter pixmap_painter(pixmap_dc);
+       
+       ePtr<gPixmap> target_pixmap;
+       m_dc->getPixmap(target_pixmap);
+       
+       assert(target_pixmap);
+       
+       pixmap_painter.mergePalette(target_pixmap);
+}
+
+eWidgetDesktop::eWidgetDesktop(eSize size): m_screen_size(size), m_mainloop(0), m_timer(0)
 {
+       m_dirty_region = gRegion(eRect(ePoint(0, 0), m_screen_size));
 }
 
 eWidgetDesktop::~eWidgetDesktop()