implemented glutSetIconTitle that works on win32, when a window is

minimized, its title is now changed, and changed back when it is restored


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1543 7f0cb862-5218-0410-a997-914c9d46530a

freeglut/freeglut/progs/demos/CallbackMaker/CallbackMaker.c

@@ -650,6 +650,7 @@ main(int argc, char *argv[])
   /* callbacks, settings and menus for this window */
   SetWindowCallbacks( 1 );
   glutIgnoreKeyRepeat(GL_TRUE);
+  glutSetIconTitle("Icon Test - Callback Demo");
 
   subMenuA = glutCreateMenu( MenuCallback );
   glutAddMenuEntry( "Sub menu A1 (01)", 11 );

freeglut/freeglut/src/fg_structure.c

@@ -93,13 +93,16 @@ SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title,
     /* Set the default mouse cursor and reset the modifiers value */
     window->State.Cursor    = GLUT_CURSOR_INHERIT;
     
-    window->IsMenu = isMenu;
-
     window->State.IgnoreKeyRepeat = GL_FALSE;
     window->State.KeyRepeating    = GL_FALSE;
     window->State.IsFullscreen    = GL_FALSE;
     window->State.VisualizeNormals= GL_FALSE;
 
+    window->State.pWState.WindowTitle   = NULL;
+    window->State.pWState.IconTitle     = NULL;
+
+    window->IsMenu = isMenu;
+
     /*
      * Open the window now. The fgOpenWindow() function is system
      * dependant, and resides in freeglut_window.c. Uses fgState.

freeglut/freeglut/src/mswin/fg_internal_mswin.h

@@ -98,6 +98,14 @@ struct tagSFG_PlatformWindowState
 
     GLboolean       MouseTracking;      /* Needed for generating GLUT_ENTERED and GLUT_LEFT entry func callbacks on windows */
     GLboolean       WindowFuncCalled;   /* Indicate whether windowStatus/visibility func was notified that this window was created */
+
+    /* Need to store window titles to emulate
+     * glutSetIconTitle/glutSetWindowTitle as Windows has only
+     * one title associated with a window and we need to swap
+     * them out based on the window's iconic state
+     */
+    char*           WindowTitle;
+    char*           IconTitle;
 };
 
 

freeglut/freeglut/src/mswin/fg_main_mswin.c

@@ -135,7 +135,21 @@ static void fghUpdateWindowStatus(SFG_Window *window, GLboolean visState)
     if (window->State.Visible != visState)
     {
         window->State.Visible = visState;
+        /* On win32 we only have two states, window displayed and window not displayed (iconified) 
+         * We map these to GLUT_FULLY_RETAINED and GLUT_HIDDEN respectively.
+         */
         INVOKE_WCB( *window, WindowStatus, ( visState ? GLUT_FULLY_RETAINED:GLUT_HIDDEN ) );
+
+        /* If top level window (not a subwindow/child), and icon title text available, switch titles based on visibility state */
+        if (!window->Parent && window->State.pWState.IconTitle)
+        {
+            if (visState)
+                /* visible, set window title */
+                SetWindowText( window->Window.Handle, window->State.pWState.WindowTitle );
+            else
+                /* not visible, set icon title */
+                SetWindowText( window->Window.Handle, window->State.pWState.IconTitle );
+        }
     }
 
     /* Also set visibility state for children */

freeglut/freeglut/src/mswin/fg_window_mswin.c

@@ -702,6 +702,12 @@ void fgPlatformOpenWindow( SFG_Window* window, const char* title,
     if( !( window->Window.Handle ) )
         fgError( "Failed to create a window (%s)!", title );
 
+    /* Store title */
+    {
+        window->State.pWState.WindowTitle = malloc (strlen(title) + 1);
+        strcpy(window->State.pWState.WindowTitle, title);
+    }
+
 #if !defined(_WIN32_WCE)
     /* Need to set requested style again, apparently Windows doesn't listen when requesting windows without title bar or borders */
     SetWindowLong(window->Window.Handle, GWL_STYLE, flags);
@@ -859,6 +865,12 @@ void fgPlatformCloseWindow( SFG_Window* window )
     }
 
     DestroyWindow( window->Window.Handle );
+
+    /* clean up copied title text(s) */
+    if (window->State.pWState.WindowTitle)
+        free(window->State.pWState.WindowTitle);
+    if (window->State.pWState.IconTitle)
+        free(window->State.pWState.IconTitle);
 }
 
 
@@ -908,24 +920,24 @@ void fgPlatformGlutSetWindowTitle( const char* title )
 #else
     SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
 #endif
+
+    /* Make copy of string to refer to later */
+    if (fgStructure.CurrentWindow->State.pWState.WindowTitle)
+        free(fgStructure.CurrentWindow->State.pWState.WindowTitle);
+    fgStructure.CurrentWindow->State.pWState.WindowTitle = malloc (strlen(title) + 1);
+    strcpy(fgStructure.CurrentWindow->State.pWState.WindowTitle, title);
 }
 
 /*
  * Set the current window's iconified title
- * There really isn't a way to set the icon name separate from the
- * windows name in Win32, so, just set the windows name.
  */
 void fgPlatformGlutSetIconTitle( const char* title )
 {
-#ifdef _WIN32_WCE
+    /* Make copy of string to refer to later */
-    {
+    if (fgStructure.CurrentWindow->State.pWState.IconTitle)
-        wchar_t* wstr = fghWstrFromStr(title);
+        free(fgStructure.CurrentWindow->State.pWState.IconTitle);
-        SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
+    fgStructure.CurrentWindow->State.pWState.IconTitle = malloc (strlen(title) + 1);
-        free(wstr);
+    strcpy(fgStructure.CurrentWindow->State.pWState.IconTitle, title);
-    }
-#else
-    SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
-#endif
 }
 
 /*