1 files changed, 118 insertions, 0 deletions

diff --git a/dw/layout.cc b/dw/layout.cc
index 3f493d8a..89361881 100644
--- a/dw/layout.cc
+++ b/dw/layout.cc
@@ -32,6 +32,65 @@ using namespace lout::object;
 namespace dw {
 namespace core {
 
+bool Layout::LayoutImgRenderer::readyToDraw ()
+{
+   return true;
+}
+
+void Layout::LayoutImgRenderer::getBgArea (int *x, int *y, int *width,
+                                           int *height)
+{
+   // TODO Actually not padding area, but visible area?
+   getRefArea (x, y, width, height);
+}
+
+void Layout::LayoutImgRenderer::getRefArea (int *xRef, int *yRef, int *widthRef,
+                                            int *heightRef)
+{
+   *xRef = 0;
+   *yRef = 0;
+   *widthRef = misc::max (layout->viewportWidth
+                          - (layout->canvasHeightGreater ?
+                             layout->vScrollbarThickness : 0),
+                          layout->canvasWidth);
+   *heightRef = misc::max (layout->viewportHeight
+                           - layout->hScrollbarThickness,
+                           layout->canvasAscent + layout->canvasDescent);
+}
+
+style::StyleImage *Layout::LayoutImgRenderer::getBackgroundImage ()
+{
+   return layout->bgImage;
+}
+
+style::BackgroundRepeat Layout::LayoutImgRenderer::getBackgroundRepeat ()
+{
+   return layout->bgRepeat;
+}
+
+style::BackgroundAttachment
+   Layout::LayoutImgRenderer::getBackgroundAttachment ()
+{
+   return layout->bgAttachment;
+}
+
+style::Length Layout::LayoutImgRenderer::getBackgroundPositionX ()
+{
+   return layout->bgPositionX;
+}
+
+style::Length Layout::LayoutImgRenderer::getBackgroundPositionY ()
+{
+   return layout->bgPositionY;
+}
+
+void Layout::LayoutImgRenderer::draw (int x, int y, int width, int height)
+{
+   layout->queueDraw (x, y, width, height);
+}
+   
+// ----------------------------------------------------------------------
+
 void Layout::Receiver::canvasSizeChanged (int width, int ascent, int descent)
 {
 }
@@ -189,6 +248,7 @@ Layout::Layout (Platform *platform)
    DBG_OBJ_CREATE (this, "DwRenderLayout");
 
    bgColor = NULL;
+   bgImage = NULL;
    cursor = style::CURSOR_DEFAULT;
 
    canvasWidth = canvasAscent = canvasDescent = 0;
@@ -216,18 +276,28 @@ Layout::Layout (Platform *platform)
    platform->setLayout (this);
 
    selectionState.setLayout(this);
+
+   layoutImgRenderer = NULL;
 }
 
 Layout::~Layout ()
 {
    widgetAtPoint = NULL;
 
+   if (layoutImgRenderer) {
+      if (bgImage)
+         bgImage->removeExternalImgRenderer (layoutImgRenderer);
+      delete layoutImgRenderer;
+   }
+
    if (scrollIdleId != -1)
       platform->removeIdle (scrollIdleId);
    if (resizeIdleId != -1)
       platform->removeIdle (resizeIdleId);
    if (bgColor)
       bgColor->unref ();
+   if (bgImage)
+      bgImage->unref ();
    if (topLevel) {
       Widget *w = topLevel;
       topLevel = NULL;
@@ -508,6 +578,23 @@ void Layout::draw (View *view, Rectangle *area)
 {
    Rectangle widgetArea, intersection, widgetDrawArea;
 
+   // First of all, draw background image. (Unlike background *color*,
+   // this is not a feature of the views.)
+   if (bgImage != NULL && bgImage->getImgbufSrc() != NULL)
+      style::drawBackgroundImage (view, bgImage, bgRepeat, bgAttachment,
+                                  bgPositionX, bgPositionY,
+                                  area->x, area->y, area->width,
+                                  area->height, 0, 0,
+                                  // Reference area: maximum of canvas size and
+                                  // viewport size.
+                                  misc::max (viewportWidth
+                                             - (canvasHeightGreater ?
+                                                vScrollbarThickness : 0),
+                                             canvasWidth),
+                                  misc::max (viewportHeight
+                                             - hScrollbarThickness,
+                                             canvasAscent + canvasDescent));
+
    if (scrollIdleId != -1) {
       /* scroll is pending, defer draw until after scrollIdle() */
       drawAfterScrollReq = true;
@@ -650,6 +737,37 @@ void Layout::setBgColor (style::Color *color)
       view->setBgColor (bgColor);
 }
 
+void Layout::setBgImage (style::StyleImage *bgImage,
+                         style::BackgroundRepeat bgRepeat,
+                         style::BackgroundAttachment bgAttachment,
+                         style::Length bgPositionX, style::Length bgPositionY)
+{
+   if (layoutImgRenderer && this->bgImage)
+      this->bgImage->removeExternalImgRenderer (layoutImgRenderer);
+
+   if (bgImage)
+      bgImage->ref ();
+   
+   if (this->bgImage)
+      this->bgImage->unref ();
+   
+   this->bgImage = bgImage;
+   this->bgRepeat = bgRepeat;
+   this->bgAttachment = bgAttachment;
+   this->bgPositionX = bgPositionX;
+   this->bgPositionY = bgPositionY;
+
+   if (bgImage) {
+      // Create instance of LayoutImgRenderer when needed. Until this
+      // layout is deleted, "layoutImgRenderer" will be kept, since it
+      // is not specific to the style, but only to this layout.
+      if (layoutImgRenderer == NULL)
+         layoutImgRenderer = new LayoutImgRenderer (this);
+      bgImage->putExternalImgRenderer (layoutImgRenderer);
+   }
+}
+
+
 void Layout::resizeIdle ()
 {
    //static int calls = 0;