implement borders for ePixmap widgets (add feature #589)

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

diff --git a/lib/gui/epixmap.cpp b/lib/gui/epixmap.cpp
index 4e15b4eb5ba85c956b149348c0596be040381ced..176868517055307a9d5e7b50ffdfa27d6405db94 100644 (file)
--- a/lib/gui/epixmap.cpp
+++ b/lib/gui/epixmap.cpp
@@ -3,22 +3,37 @@
 #include <lib/gui/ewidgetdesktop.h>
 
 ePixmap::ePixmap(eWidget *parent)
-       :eWidget(parent), m_alphatest(false)
+        :eWidget(parent), m_alphatest(false), m_scale(false), m_have_border_color(false), m_border_width(0)
 {
 }
 
-void ePixmap::setAlphatest(bool alphatest)
+void ePixmap::setAlphatest(int alphatest)
 {
        m_alphatest = alphatest;
        setTransparent(alphatest);
 }
 
+void ePixmap::setScale(int scale)
+{
+       if (m_scale != scale)
+       {
+               m_scale = scale;
+               invalidate();
+       }
+}
+
 void ePixmap::setPixmap(gPixmap *pixmap)
 {
        m_pixmap = pixmap;
        event(evtChangedPixmap);
 }
 
+void ePixmap::setPixmap(ePtr<gPixmap> &pixmap)
+{
+       m_pixmap = pixmap;
+       event(evtChangedPixmap);
+}
+
 void ePixmap::setPixmapFromFile(const char *filename)
 {
        loadPNG(m_pixmap, filename);
@@ -31,7 +46,31 @@ void ePixmap::setPixmapFromFile(const char *filename)
        
                // TODO: This only works for desktop 0
        getDesktop(0)->makeCompatiblePixmap(*m_pixmap);
-       event(evtChangedPixmap);
+        event(evtChangedPixmap);
+}
+
+void ePixmap::setBorderWidth(int pixel)
+{
+        m_border_width=pixel;
+        invalidate();
+}
+
+void ePixmap::setBorderColor(const gRGB &color)
+{
+        m_border_color=color;
+        m_have_border_color=true;
+        invalidate();
+}
+
+void ePixmap::checkSize()
+{
+                        /* when we have no pixmap, or a pixmap of different size, we need 
+          to enable transparency in any case. */
+       if (m_pixmap && m_pixmap->size() == size() && !m_alphatest)
+               setTransparent(0);
+       else
+               setTransparent(1);
+               /* fall trough. */
 }
 
 int ePixmap::event(int event, void *data, void *data2)
@@ -39,22 +78,50 @@ int ePixmap::event(int event, void *data, void *data2)
        switch (event)
        {
        case evtPaint:
-       {
-               ePtr<eWindowStyle> style;
-               
-               getStyle(style);
-               
-//             eWidget::event(event, data, data2);
-               
+        {
+                ePtr<eWindowStyle> style;
+
+                eSize s(size());
+                getStyle(style);
+
+//      we don't clear the background before because of performance reasons.
+//     when the pixmap is too small to fit the whole widget area, the widget is
+//     transparent anyway, so the background is already painted.
+//             eWidget::event(event, data, data2); 
+
                gPainter &painter = *(gPainter*)data2;
                if (m_pixmap)
-                       painter.blit(m_pixmap, ePoint(0, 0), eRect(), m_alphatest?gPainter::BT_ALPHATEST:0);
-               
-               return 0;
-       }
-       case evtChangedPixmap:
+               {
+                       int flags = 0;
+                       if (m_alphatest == 0)
+                               flags = 0;
+                       else if (m_alphatest == 1)
+                               flags = gPainter::BT_ALPHATEST;
+                       else if (m_alphatest == 2)
+                               flags = gPainter::BT_ALPHABLEND;
+                       if (m_scale)
+                               painter.blitScale(m_pixmap, eRect(ePoint(0, 0), size()), eRect(), flags);
+                       else
+                                painter.blit(m_pixmap, ePoint(0, 0), eRect(), flags);
+                }
+
+// border
+                if (m_have_border_color)
+                        painter.setForegroundColor(m_border_color);
+                painter.fill(eRect(0, 0, s.width(), m_border_width));
+                painter.fill(eRect(0, m_border_width, m_border_width, s.height()-m_border_width));
+                painter.fill(eRect(m_border_width, s.height()-m_border_width, s.width()-m_border_width, m_border_width));
+                painter.fill(eRect(s.width()-m_border_width, m_border_width, m_border_width, s.height()-m_border_width));
+
+                return 0;
+        }
+        case evtChangedPixmap:
+               checkSize();
                invalidate();
                return 0;
+       case evtChangedSize:
+               checkSize();
+                       /* fall trough. */
        default:
                return eWidget::event(event, data, data2);
        }