Don't return "void" to fix MSVC6 compilation.

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

diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp
index cf394a8dcc66fb4ef2339efc5443985201eed9ac..c20ee70c5a7c756384d8cafbe857e59fc3532259 100644 (file)
--- a/src/gtk/slider.cpp
+++ b/src/gtk/slider.cpp
@@ -20,6 +20,7 @@
 #endif
 
 #include <gtk/gtk.h>
+#include "wx/gtk/private/gtk2-compat.h"
 
 //-----------------------------------------------------------------------------
 // data
@@ -124,12 +125,11 @@ extern "C" {
 static void
 gtk_value_changed(GtkRange* range, wxSlider* win)
 {
-    GtkAdjustment* adj = gtk_range_get_adjustment (range);
-    const int pos = wxRound(adj->value);
+    const double value = gtk_range_get_value(range);
     const double oldPos = win->m_pos;
-    win->m_pos = adj->value;
+    win->m_pos = value;
 
-    if (!win->m_hasVMT || g_blockEventsOnDrag)
+    if (g_blockEventsOnDrag)
         return;
 
     if (win->GTKEventsDisabled())
@@ -151,18 +151,19 @@ gtk_value_changed(GtkRange* range, wxSlider* win)
     else if (win->m_mouseButtonDown)
     {
         // Difference from last change event
-        const double diff = adj->value - oldPos;
+        const double diff = value - oldPos;
         const bool isDown = diff > 0;
 
-        if (IsScrollIncrement(adj->page_increment, diff))
+        GtkAdjustment* adj = gtk_range_get_adjustment(range);
+        if (IsScrollIncrement(gtk_adjustment_get_page_increment(adj), diff))
         {
             eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
         }
-        else if (wxIsSameDouble(adj->value, 0))
+        else if (wxIsSameDouble(value, 0))
         {
             eventType = wxEVT_SCROLL_PAGEUP;
         }
-        else if (wxIsSameDouble(adj->value, adj->upper))
+        else if (wxIsSameDouble(value, gtk_adjustment_get_upper(adj)))
         {
             eventType = wxEVT_SCROLL_PAGEDOWN;
         }
@@ -178,7 +179,7 @@ gtk_value_changed(GtkRange* range, wxSlider* win)
     win->m_scrollEventType = GTK_SCROLL_NONE;
 
     // If integral position has changed
-    if (wxRound(oldPos) != pos)
+    if (wxRound(oldPos) != wxRound(value))
     {
         ProcessScrollEvent(win, eventType);
         win->m_needThumbRelease = eventType == wxEVT_SCROLL_THUMBTRACK;
@@ -272,14 +273,15 @@ static gchar* gtk_format_value(GtkScale*, double value, void*)
 // wxSlider
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl)
-
 wxSlider::wxSlider()
 {
-    m_pos = 0;
-    m_scrollEventType = GTK_SCROLL_NONE;
-    m_needThumbRelease = false;
-    m_blockScrollEvent = false;
+    m_scale = NULL;
+}
+
+wxSlider::~wxSlider()
+{
+    if (m_scale && m_scale != m_widget)
+        GTKDisconnect(m_scale);
 }
 
 bool wxSlider::Create(wxWindow *parent,
@@ -295,6 +297,8 @@ bool wxSlider::Create(wxWindow *parent,
 {
     m_pos = value;
     m_scrollEventType = GTK_SCROLL_NONE;
+    m_needThumbRelease = false;
+    m_blockScrollEvent = false;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
@@ -319,7 +323,6 @@ bool wxSlider::Create(wxWindow *parent,
         else
             m_widget = gtk_vbox_new(false, 0);
         g_object_ref(m_widget);
-        gtk_widget_show( m_widget );
         gtk_container_add( GTK_CONTAINER(m_widget), m_scale );
 
         GtkWidget *box;
@@ -357,16 +360,30 @@ bool wxSlider::Create(wxWindow *parent,
         m_minLabel = NULL;
     }
 
-    if (style & wxSL_VALUE_LABEL)
+    const bool showValueLabel = (style & wxSL_VALUE_LABEL) != 0;
+    gtk_scale_set_draw_value(GTK_SCALE (m_scale), showValueLabel );
+    if ( showValueLabel )
     {
-        gtk_scale_set_draw_value(GTK_SCALE (m_scale), TRUE );
+        // position the label appropriately: notice that wxSL_DIRECTION flags
+        // specify the position of the ticks, not label, under MSW and so the
+        // label is on the opposite side
+        GtkPositionType posLabel;
+        if ( style & wxSL_VERTICAL )
+        {
+            if ( style & wxSL_LEFT )
+                posLabel = GTK_POS_RIGHT;
+            else // if ( style & wxSL_RIGHT ) -- this is also the default
+                posLabel = GTK_POS_LEFT;
+        }
+        else // horizontal slider
+        {
+            if ( style & wxSL_TOP )
+                posLabel = GTK_POS_BOTTOM;
+            else // if ( style & wxSL_BOTTOM) -- this is again the default
+                posLabel = GTK_POS_TOP;
+        }
 
-        if (style & wxSL_VERTICAL)
-            gtk_scale_set_value_pos( GTK_SCALE(m_scale), GTK_POS_LEFT );
-    }
-    else
-    {
-        gtk_scale_set_draw_value(GTK_SCALE (m_scale), FALSE );
+        gtk_scale_set_value_pos( GTK_SCALE(m_scale), posLabel );
     }
 
     // Keep full precision in position value
@@ -426,6 +443,8 @@ void wxSlider::GTKSetValue(int value)
 {
     GTKDisableEvents();
     gtk_range_set_value(GTK_RANGE (m_scale), value);
+    // GTK only updates value label if handle moves at least 1 pixel
+    gtk_widget_queue_draw(m_scale);
     GTKEnableEvents();
 }
 
@@ -459,12 +478,14 @@ void wxSlider::SetRange( int minValue, int maxValue )
 
 int wxSlider::GetMin() const
 {
-    return int(gtk_range_get_adjustment (GTK_RANGE (m_scale))->lower);
+    GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(m_scale));
+    return int(gtk_adjustment_get_lower(adj));
 }
 
 int wxSlider::GetMax() const
 {
-    return int(gtk_range_get_adjustment (GTK_RANGE (m_scale))->upper);
+    GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(m_scale));
+    return int(gtk_adjustment_get_upper(adj));
 }
 
 void wxSlider::SetPageSize( int pageSize )
@@ -476,7 +497,8 @@ void wxSlider::SetPageSize( int pageSize )
 
 int wxSlider::GetPageSize() const
 {
-    return int(gtk_range_get_adjustment (GTK_RANGE (m_scale))->page_increment);
+    GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(m_scale));
+    return int(gtk_adjustment_get_page_increment(adj));
 }
 
 // GTK does not support changing the size of the slider
@@ -498,12 +520,18 @@ void wxSlider::SetLineSize( int lineSize )
 
 int wxSlider::GetLineSize() const
 {
-    return int(gtk_range_get_adjustment (GTK_RANGE (m_scale))->step_increment);
+    GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(m_scale));
+    return int(gtk_adjustment_get_step_increment(adj));
 }
 
 GdkWindow *wxSlider::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 {
+#ifdef __WXGTK3__
+    // no access to internal GdkWindows
+    return NULL;
+#else
     return GTK_RANGE(m_scale)->event_window;
+#endif
 }
 
 // static