Shell: TextWidget manual redrawing

Added a method for immediately redrawing and showing a text widget.
skyjake · Jan 25, 2013 · b2b4f93 · b2b4f93
1 parent a809df1
commit b2b4f93
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Showing 3 changed files with 20 additions and 1 deletion.
diff --git a/doomsday/tools/shell/libshell/include/de/shell/textcanvas.h b/doomsday/tools/shell/libshell/include/de/shell/textcanvas.h
@@ -48,6 +48,7 @@ class DENG2_PUBLIC TextCanvas
             Bold      = 0x1,
             Underline = 0x2,
             Reverse   = 0x4,
+            Blink     = 0x8,
 
             Dirty     = 0x80000000,
 
@@ -134,7 +135,7 @@ class DENG2_PUBLIC TextCanvas
 
     void put(Vector2i const &pos, Char const &ch);
 
-    void drawText(Vector2i const &pos, String const &text, Char::Attribs const &attribs);
+    void drawText(Vector2i const &pos, String const &text, Char::Attribs const &attribs = Char::DefaultAttributes);
 
     /**
      * Copies the contents of this canvas onto another canvas.

diff --git a/doomsday/tools/shell/libshell/include/de/shell/textwidget.h b/doomsday/tools/shell/libshell/include/de/shell/textwidget.h
@@ -51,6 +51,14 @@ class DENG2_PUBLIC TextWidget : public QObject, public Widget
 
     TextCanvas *targetCanvas() const;
 
+    /**
+     * Draw this widget and all its children, and show the target canvas
+     * afterwards. Use this in special cases for faster redrawing of portions
+     * of the screen when only one widget's contents have changed and need
+     * updating.
+     */
+    void drawAndShow();
+
     /**
      * Defines the placement of the widget on the target canvas.
      *

diff --git a/doomsday/tools/shell/libshell/src/textwidget.cpp b/doomsday/tools/shell/libshell/src/textwidget.cpp
@@ -66,6 +66,16 @@ TextCanvas *TextWidget::targetCanvas() const
     return d->canvas;
 }
 
+void TextWidget::drawAndShow()
+{
+    if(targetCanvas())
+    {
+        draw();
+        notifyTree(&Widget::draw);
+        targetCanvas()->show();
+    }
+}
+
 void TextWidget::setRule(RectangleRule *rule)
 {
     releaseRef(d->rule);