From 6346c8941ce8b434423b0787733e084076d51d6f Mon Sep 17 00:00:00 2001
From: Ryan Leavengood <leavengood@gmail.com>
Date: Wed, 20 Dec 2006 01:08:55 +0000
Subject: [PATCH] Implemented Stephan's previous TODO (in an svn commit
 message) to hide the cursor after a delay when in fullscreen mode. I set the
 delay to 5 seconds. In addition I make sure the ShowImage window is the
 active window before trying to hide the cursor, because otherwise there is a
 lot of cursor flickering if you change workspaces.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19569 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/apps/showimage/ShowImageView.cpp | 19 ++++++++++++++++---
 src/apps/showimage/ShowImageView.h   |  7 +++++++
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/apps/showimage/ShowImageView.cpp b/src/apps/showimage/ShowImageView.cpp
index a1e1707e8f..0ad2609f62 100644
--- a/src/apps/showimage/ShowImageView.cpp
+++ b/src/apps/showimage/ShowImageView.cpp
@@ -202,6 +202,7 @@ ShowImageView::ShowImageView(BRect rect, const char *name, uint32 resizingMode,
 #if DELAYED_SCALING
 	fScalingCountDown = SCALING_DELAY_TIME;
 #endif
+	fHideCursorCountDown = HIDE_CURSOR_DELAY_TIME;
 
 	if (settings->Lock()) {
 		fDither = settings->GetBool("Dither", fDither);
@@ -310,8 +311,12 @@ ShowImageView::Pulse()
 	}
 
 	// Hide cursor in full screen mode
-	if (fFullScreen && !fShowingPopUpMenu)
-		be_app->ObscureCursor();
+	if (fFullScreen && !fShowingPopUpMenu && fIsActiveWin) {
+		if (fHideCursorCountDown <= 0)
+			be_app->ObscureCursor();
+		else
+			fHideCursorCountDown--;
+	}
 
 #if DELAYED_SCALING
 	if (fBitmap && (fScaleBilinear || fDither) && fScalingCountDown > 0) {
@@ -624,7 +629,6 @@ ShowImageView::SetFullScreen(bool fullScreen)
 		fFullScreen = fullScreen;
 		if (fFullScreen) {
 			SetLowColor(0, 0, 0, 255);
-			be_app->ObscureCursor();
 		} else
 			SetLowColor(ui_color(B_PANEL_BACKGROUND_COLOR));
 	}
@@ -1375,6 +1379,7 @@ ShowImageView::MergeSelection()
 void
 ShowImageView::MouseDown(BPoint position)
 {
+	fHideCursorCountDown = HIDE_CURSOR_DELAY_TIME;
 	BPoint point;
 	uint32 buttons;
 	MakeFocus(true);
@@ -1472,6 +1477,7 @@ ShowImageView::UpdateSelectionRect(BPoint point, bool final)
 void
 ShowImageView::MouseMoved(BPoint point, uint32 state, const BMessage *message)
 {
+	fHideCursorCountDown = HIDE_CURSOR_DELAY_TIME;
 	if (fMakesSelection) {
 		UpdateSelectionRect(point, false);
 	} else if (fMovesImage) {
@@ -2567,3 +2573,10 @@ ShowImageView::ExitFullScreen()
 }
 
 
+void 
+ShowImageView::WindowActivated(bool active)
+{
+	fIsActiveWin = active;
+	fHideCursorCountDown = HIDE_CURSOR_DELAY_TIME;
+}
+
diff --git a/src/apps/showimage/ShowImageView.h b/src/apps/showimage/ShowImageView.h
index 269833afde..470dbcde02 100644
--- a/src/apps/showimage/ShowImageView.h
+++ b/src/apps/showimage/ShowImageView.h
@@ -33,6 +33,9 @@
 // width of the black border stroked arround the bitmap
 #define PEN_SIZE 1.0f
 
+// the delay time for hiding the cursor in 1/10 seconds (the pulse rate)
+#define HIDE_CURSOR_DELAY_TIME 50
+
 class ShowImageView : public BView {
 	public:
 		ShowImageView(BRect rect, const char *name, uint32 resizingMode,
@@ -49,6 +52,7 @@ class ShowImageView : public BView {
 		virtual void Pulse();
 
 		virtual void MessageReceived(BMessage *message);
+		virtual void WindowActivated(bool active);
 
 		void SetTrackerMessenger(const BMessenger& trackerMessenger);
 		status_t SetImage(const entry_ref *ref);
@@ -237,6 +241,9 @@ class ShowImageView : public BView {
 
 		bool fShowingPopUpMenu;
 
+		int fHideCursorCountDown;	// Hides the cursor when it reaches zero
+		bool fIsActiveWin;			// Is the parent window the active window?
+
 		enum image_orientation fImageOrientation;
 		static enum image_orientation fTransformation[
 			ImageProcessor::kNumberOfAffineTransformations][kNumberOfOrientations];