linuxdcpp-team team mailing list archive

[noreply@xxxxxxxxxxxxx]

------------------------------------------------------------
revno: 2856
committer: poy <poy@xxxxxxxxxx>
branch nick: trunk
timestamp: Sat 2012-02-04 19:51:03 +0100
message:
  fix tree redraw problems
modified:
  dwt/include/dwt/aspects/Visible.h
  dwt/src/widgets/Tree.cpp


--
lp:dcplusplus
https://code.launchpad.net/~dcplusplus-team/dcplusplus/trunk

Your team Dcplusplus-team is subscribed to branch lp:dcplusplus.
To unsubscribe from this branch go to https://code.launchpad.net/~dcplusplus-team/dcplusplus/trunk/+edit-subscription

=== modified file 'dwt/include/dwt/aspects/Visible.h'
--- dwt/include/dwt/aspects/Visible.h	2012-01-13 20:55:20 +0000
+++ dwt/include/dwt/aspects/Visible.h	2012-02-04 18:51:03 +0000
@@ -77,16 +77,18 @@
 	  */
 	bool getVisible() const;
 
-	/// \ingroup EventHandlersaspects::Visible
-	/// Setting the event handler for the "visible" event
-	/** When the visible state of the Widget has changed, this event will be raised.
-	  * <br>
-	  * A boolean parameter passed indicates if the Widget is visible or not. <br>
-	  * If the boolean value is true, the Widget is visible, otherwise it is
-	  * invisible.
-	  */
-	void onVisibilityChanged(const typename VisibleDispatcher::F& f) {
-		W().addCallback(Message( WM_SHOWWINDOW ), VisibleDispatcher(f));
+	/** Intercept visibility changes of this widget (when it is shown / hidden). */
+	void onVisibilityChanged(typename VisibleDispatcher::F f) {
+		W().addCallback(Message(WM_SHOWWINDOW), VisibleDispatcher(f));
+	}
+
+	/** Intercept WM_SETREDRAW messages (used to temporarily disable updating of a widget to
+	implement them better. Return true from the callback to disable regular processing of the
+	message. */
+	void onRedrawChanged(std::function<bool (bool)> f) {
+		W().addCallback(Message(WM_SETREDRAW), [f](const MSG& msg, LRESULT&) -> bool {
+			return f(msg.wParam);
+		});
 	}
 
 	/// Repaints the whole window

=== modified file 'dwt/src/widgets/Tree.cpp'
--- dwt/src/widgets/Tree.cpp	2012-01-13 20:55:20 +0000
+++ dwt/src/widgets/Tree.cpp	2012-02-04 18:51:03 +0000
@@ -78,9 +78,12 @@
 	BaseType::create(mySeed);
 	tree = WidgetCreator<TreeView>::create(this, cs);
 
-	onSized([&](const SizedEvent& e) { layout(); });
-
-	tree->onCustomDraw([=](NMTVCUSTOMDRAW& x) { return draw(x); });
+	onSized([this](const SizedEvent& e) { layout(); });
+
+	// let the tree control handle WM_SETREDRAW
+	onRedrawChanged([this](bool b) -> bool { tree->sendMessage(WM_SETREDRAW, b); return true; });
+
+	tree->onCustomDraw([this](NMTVCUSTOMDRAW& x) { return draw(x); });
 
 	setFont(cs.font);
 	layout();