New signal "resizeQueued" for Layout. It is used by ComplexButtonResource, instead of "canvasSizeChange"; this seems to fix a CPU hogging problem.

5 files changed, 37 insertions, 15 deletions

diff --git a/dw/layout.cc b/dw/layout.cc
index b93a1b70..f9b3f763 100644
--- a/dw/layout.cc
+++ b/dw/layout.cc
@@ -91,6 +91,10 @@ void Layout::LayoutImgRenderer::draw (int x, int y, int width, int height)
 
 // ----------------------------------------------------------------------
 
+void Layout::Receiver::resizeQueued (bool extremesChanged)
+{
+}
+
 void Layout::Receiver::canvasSizeChanged (int width, int ascent, int descent)
 {
 }
@@ -110,6 +114,10 @@ bool Layout::Emitter::emitToReceiver (lout::signal::Receiver *receiver,
                                          ((Integer*)argv[2])->getValue ());
       break;
 
+   case RESIZE_QUEUED:
+      layoutReceiver->resizeQueued (((Boolean*)argv[0])->getValue ());
+      break;
+
    default:
       misc::assertNotReached ();
    }
@@ -117,6 +125,13 @@ bool Layout::Emitter::emitToReceiver (lout::signal::Receiver *receiver,
    return false;
 }
 
+void Layout::Emitter::emitResizeQueued (bool extremesChanged)
+{
+   Boolean ec (extremesChanged);
+   Object *argv[1] = { &ec };
+   emitVoid (RESIZE_QUEUED, 1, argv);
+}
+
 void Layout::Emitter::emitCanvasSizeChanged (int width,
                                              int ascent, int descent)
 {
@@ -963,9 +978,10 @@ void Layout::queueDrawExcept (int x, int y, int width, int height,
    queueDraw (ix2, iy1, x + width - ix2, iy2 - iy1);
 }
 
-void Layout::queueResize ()
+void Layout::queueResize (bool extremesChanged)
 {
-   DBG_OBJ_MSG ("resize", 0, "<b>queueResize</b>");
+   DBG_OBJ_MSGF ("resize", 0, "<b>queueResize</b> (%s)",
+                 extremesChanged ? "true" : "false");
    DBG_OBJ_MSG_START ();
 
    if (resizeIdleId == -1) {
@@ -975,6 +991,8 @@ void Layout::queueResize ()
       DBG_OBJ_MSGF ("resize", 1, "setting resizeIdleId = %d", resizeIdleId);
    }
 
+   emitter.emitResizeQueued (extremesChanged);
+
    DBG_OBJ_MSG_END ();
 }
 
@@ -1261,7 +1279,7 @@ void Layout::viewportSizeChanged (View *view, int width, int height)
          // similar to addWidget()
          topLevel->queueResize (-1, false);
       else
-         queueResize ();
+         queueResize (false);
    }
 
    viewportWidth = width;
diff --git a/dw/layout.hh b/dw/layout.hh
index 6b6ceadb..2120d877 100644
--- a/dw/layout.hh
+++ b/dw/layout.hh
@@ -42,11 +42,12 @@ public:
    /**
     * \brief Receiver interface different signals.
     *
-    * May be extended
+    * May be extended.
     */
    class Receiver: public lout::signal::Receiver
    {
    public:
+      virtual void resizeQueued (bool extremesChanged);
       virtual void canvasSizeChanged (int width, int ascent, int descent);
    };
 
@@ -126,7 +127,7 @@ private:
    class Emitter: public lout::signal::Emitter
    {
    private:
-      enum { CANVAS_SIZE_CHANGED };
+      enum { RESIZE_QUEUED, CANVAS_SIZE_CHANGED };
 
    protected:
       bool emitToReceiver (lout::signal::Receiver *receiver, int signalNo,
@@ -135,6 +136,7 @@ private:
    public:
       inline void connectLayout (Receiver *receiver) { connect (receiver); }
 
+      void emitResizeQueued (bool extremesChanged);
       void emitCanvasSizeChanged (int width, int ascent, int descent);
    };
 
@@ -252,7 +254,7 @@ private:
    void queueDraw (int x, int y, int width, int height);
    void queueDrawExcept (int x, int y, int width, int height,
       int ex, int ey, int ewidth, int eheight);
-   void queueResize ();
+   void queueResize (bool extremesChanged);
    void removeWidget ();
 
    /* For tests regarding the respective Layout and (mostly) Widget
diff --git a/dw/ui.cc b/dw/ui.cc
index 75314342..8fb34c96 100644
--- a/dw/ui.cc
+++ b/dw/ui.cc
@@ -288,14 +288,16 @@ Iterator *LabelButtonResource::iterator (Content::Type mask, bool atEnd)
 
 // ----------------------------------------------------------------------
 
-void ComplexButtonResource::LayoutReceiver::canvasSizeChanged (int width,
-                                                               int ascent,
-                                                               int descent)
+void ComplexButtonResource::LayoutReceiver::resizeQueued (bool extremesChanged)
 {
-   /**
-    * \todo Verify that this is correct.
-    */
-   resource->queueResize (resource->childWidget->extremesQueued ());
+  DBG_OBJ_MSGF_O ("resize", 0, resource,
+                   "LayoutReceiver::<b>resizeQueued</b> (%s)",
+                  extremesChanged ? "true" : "false");
+   DBG_OBJ_MSG_START_O (resource);
+
+   resource->queueResize (extremesChanged);
+
+   DBG_OBJ_MSG_END_O (resource);
 }
 
 ComplexButtonResource::ComplexButtonResource ()
diff --git a/dw/ui.hh b/dw/ui.hh
index 75d69341..cab67e17 100644
--- a/dw/ui.hh
+++ b/dw/ui.hh
@@ -378,7 +378,7 @@ private:
    public:
       ComplexButtonResource *resource;
 
-      void canvasSizeChanged (int width, int ascent, int descent);
+      void resizeQueued (bool extremesChanged);
    };
 
    friend class LayoutReceiver;
diff --git a/dw/widget.cc b/dw/widget.cc
index 0ef1fc78..82677cc8 100644
--- a/dw/widget.cc
+++ b/dw/widget.cc
@@ -262,7 +262,7 @@ void Widget::actualQueueResize (int ref, bool extremesChanged)
    }
 
    if (layout)
-      layout->queueResize ();
+      layout->queueResize (extremesChanged);
 
    leaveQueueResize ();