From b2b4f93a4650aa6b4adc06c2caaa78a2e0a767df Mon Sep 17 00:00:00 2001
From: skyjake <skyjake@users.sf.net>
Date: Fri, 25 Jan 2013 22:22:10 +0200
Subject: [PATCH] Shell: TextWidget manual redrawing

Added a method for immediately redrawing and showing a text widget.
---
 .../tools/shell/libshell/include/de/shell/textcanvas.h |  3 ++-
 .../tools/shell/libshell/include/de/shell/textwidget.h |  8 ++++++++
 doomsday/tools/shell/libshell/src/textwidget.cpp       | 10 ++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/doomsday/tools/shell/libshell/include/de/shell/textcanvas.h b/doomsday/tools/shell/libshell/include/de/shell/textcanvas.h
index a9b4c2120f..86c561d700 100644
--- 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
index d4263ff592..1f0e8c833d 100644
--- 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
index d5c2961c0d..f6ba8b5aed 100644
--- 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);