24-bit rendering from wxImage into wxBitmap

[wxWidgets.git] / src / gtk / scrolbar.cpp

diff --git a/src/gtk/scrolbar.cpp b/src/gtk/scrolbar.cpp
index de1cb7a8883167eca45051ee75ea3736b21eab11..e5e2cd59f7e3ed04a14d874e270243481e5ac498 100644 (file)
--- a/src/gtk/scrolbar.cpp
+++ b/src/gtk/scrolbar.cpp
@@ -2,9 +2,8 @@
 // Name:        scrolbar.cpp
 // Purpose:
 // Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
 // Licence:    wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
@@ -23,7 +22,7 @@
 extern bool   g_blockEventsOnDrag;
 
 //-----------------------------------------------------------------------------
-// wxScrollBar
+// "value_changed"
 //-----------------------------------------------------------------------------
 
 static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *win )
@@ -48,7 +47,7 @@ static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *wi
   int value = (int)(win->m_adjust->value+0.5);
       
   int orient = wxHORIZONTAL;
-  if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxHORIZONTAL;
+  if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxVERTICAL;
   
   wxScrollEvent event( command, win->GetId(), value, orient );
   event.SetEventObject( win );
@@ -61,6 +60,38 @@ static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *wi
 */
 }
 
+//-----------------------------------------------------------------------------
+// "button_press_event" from slider
+//-----------------------------------------------------------------------------
+
+static gint gtk_scrollbar_button_press_callback( GtkRange *widget, GdkEventButton *gdk_event, wxScrollBar *win )
+{
+  if (gdk_event->window != widget->slider) return FALSE;
+    
+  win->m_isScrolling = TRUE;
+  
+  return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event" from slider
+//-----------------------------------------------------------------------------
+
+static gint gtk_scrollbar_button_release_callback( GtkRange *widget, GdkEventButton *gdk_event, wxScrollBar *win )
+{
+  if (gdk_event->window != widget->slider) return FALSE;
+
+  gtk_signal_emit_by_name( GTK_OBJECT(win->m_adjust), "value_changed" );
+      
+  win->m_isScrolling = FALSE;
+  
+  return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// wxScrollBar
+//-----------------------------------------------------------------------------
+
 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl)
 
 wxScrollBar::~wxScrollBar(void)
@@ -89,8 +120,16 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
   gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed",
                      (GtkSignalFunc) gtk_scrollbar_callback, (gpointer) this );
   
+  gtk_signal_connect( GTK_OBJECT(m_widget), "button_press_event",
+          (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );
+
+  gtk_signal_connect( GTK_OBJECT(m_widget), "button_release_event",
+          (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );
+
   PostCreation();
   
+  SetBackgroundColour( parent->GetBackgroundColour() );
+
   Show( TRUE );
     
   return TRUE;
@@ -122,30 +161,34 @@ void wxScrollBar::SetPosition( int viewStart )
   m_oldPos = fpos;
   if (fabs(fpos-m_adjust->value) < 0.2) return;
   m_adjust->value = fpos;
-  
-  gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
+
+  if (!m_isScrolling)
+    gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
 }
 
 void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize,
       bool WXUNUSED(refresh) )
 {
   float fpos = (float)position;
-  m_oldPos = fpos;
   float frange = (float)range;
   float fthumb = (float)thumbSize;
   float fpage = (float)pageSize;
       
-  if ((fabs(fpos-m_adjust->value) < 0.2) &&
-      (fabs(frange-m_adjust->upper) < 0.2) &&
+  if ((fabs(frange-m_adjust->upper) < 0.2) &&
       (fabs(fthumb-m_adjust->page_size) < 0.2) &&
       (fabs(fpage-m_adjust->page_increment) < 0.2))
-      return;
-      
+  {
+    SetPosition( position );
+    return;
+  }
+  
+  m_oldPos = fpos;
+  
   m_adjust->lower = 0.0;
   m_adjust->upper = frange;
   m_adjust->value = fpos;
   m_adjust->step_increment = 1.0;
-  m_adjust->page_increment = (float)(wxMax(fpage-2,0));
+  m_adjust->page_increment = (float)(wxMax(fpage,0));
   m_adjust->page_size = fthumb;
 
   gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
@@ -209,3 +252,19 @@ void wxScrollBar::SetViewLength( int viewLength )
   SetScrollbar( pos, thumb, viewLength, page );
 }
 
+bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window )
+{
+  GtkRange *range = GTK_RANGE(m_widget);
+  return ( (window == GTK_WIDGET(range)->window) ||
+           (window == range->trough) ||
+          (window == range->slider) ||
+          (window == range->step_forw) ||
+          (window == range->step_back) );
+}
+
+void wxScrollBar::ApplyWidgetStyle()
+{
+  SetWidgetStyle();
+  gtk_widget_set_style( m_widget, m_widgetStyle );
+}
+