simplify code to return from the end of the function

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

diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp
index 83deaec5f310f56f656a2fc1a17619e8958d4141..7e49ff26b46f89ce747d1c133fbe9df91a2ce207 100644 (file)
--- a/src/gtk/slider.cpp
+++ b/src/gtk/slider.cpp
@@ -20,6 +20,7 @@
 #endif
 
 #include <gtk/gtk.h>
 #endif
 
 #include <gtk/gtk.h>

+#include "wx/gtk/private/gtk2-compat.h"

 
 //-----------------------------------------------------------------------------
 // data
 
 //-----------------------------------------------------------------------------
 // data


@@ -124,12 +125,11 @@ extern "C" {
 static void
 gtk_value_changed(GtkRange* range, wxSlider* win)
 {
 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;
     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())
         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
     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;
 
         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;
         }
         {
             eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
         }

-        else if (wxIsSameDouble(adj->value, 0))
+        else if (wxIsSameDouble(value, 0))

         {
             eventType = wxEVT_SCROLL_PAGEUP;
         }
         {
             eventType = wxEVT_SCROLL_PAGEUP;
         }

-        else if (wxIsSameDouble(adj->value, adj->upper))
+        else if (wxIsSameDouble(value, gtk_adjustment_get_upper(adj)))

         {
             eventType = wxEVT_SCROLL_PAGEDOWN;
         }
         {
             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
     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;
     {
         ProcessScrollEvent(win, eventType);
         win->m_needThumbRelease = eventType == wxEVT_SCROLL_THUMBTRACK;


@@ -272,14 +273,15 @@ static gchar* gtk_format_value(GtkScale*, double value, void*)
 // wxSlider
 //-----------------------------------------------------------------------------
 
 // wxSlider
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl)
-

 wxSlider::wxSlider()
 {
 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,
 }
 
 bool wxSlider::Create(wxWindow *parent,


@@ -295,6 +297,8 @@ bool wxSlider::Create(wxWindow *parent,
 {
     m_pos = value;
     m_scrollEventType = GTK_SCROLL_NONE;
 {
     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 ))
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))


@@ -303,52 +307,32 @@ bool wxSlider::Create(wxWindow *parent,
         return false;
     }
 
         return false;
     }
 

-
-    if (style & wxSL_VERTICAL)
-        m_scale = gtk_vscale_new( NULL );
-    else
-        m_scale = gtk_hscale_new( NULL );
-    g_object_ref(m_scale);
+    const bool isVertical = (style & wxSL_VERTICAL) != 0;
+    m_scale = gtk_scale_new(GtkOrientation(isVertical), NULL);

 
     if (style & wxSL_MIN_MAX_LABELS)
     {
         gtk_widget_show( m_scale );
 
 
     if (style & wxSL_MIN_MAX_LABELS)
     {
         gtk_widget_show( m_scale );
 

-        if (style & wxSL_VERTICAL)
-            m_widget = gtk_hbox_new(false, 0);
-        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;
-        if (style & wxSL_VERTICAL)
-            box = gtk_vbox_new(false,0);
-        else
-            box = gtk_hbox_new(false,0);
-        g_object_ref(box);
+        m_widget = gtk_box_new(GtkOrientation(!isVertical), 0);
+        gtk_box_pack_start(GTK_BOX(m_widget), m_scale, true, true, 0);
+
+        GtkWidget* box = gtk_box_new(GtkOrientation(isVertical), 0);

         gtk_widget_show(box);
         gtk_widget_show(box);

-        gtk_container_add( GTK_CONTAINER(m_widget), box );
+        gtk_box_pack_start(GTK_BOX(m_widget), box, true, true, 0);

 
         m_minLabel = gtk_label_new(NULL);
 
         m_minLabel = gtk_label_new(NULL);

-        g_object_ref(m_minLabel);

         gtk_widget_show( m_minLabel );
         gtk_widget_show( m_minLabel );

-        gtk_container_add( GTK_CONTAINER(box), m_minLabel );
-        gtk_box_set_child_packing( GTK_BOX(box), m_minLabel, FALSE, FALSE, 0, GTK_PACK_START );
+        gtk_box_pack_start(GTK_BOX(box), m_minLabel, false, false, 0);

 
         // expanding empty space between the min/max labels
         GtkWidget *space = gtk_label_new(NULL);
 
         // expanding empty space between the min/max labels
         GtkWidget *space = gtk_label_new(NULL);

-        g_object_ref(space);

         gtk_widget_show( space );
         gtk_widget_show( space );

-        gtk_container_add( GTK_CONTAINER(box), space );
-        gtk_box_set_child_packing( GTK_BOX(box), space, TRUE, FALSE, 0, GTK_PACK_START );
+        gtk_box_pack_start(GTK_BOX(box), space, true, false, 0);

 
         m_maxLabel = gtk_label_new(NULL);
 
         m_maxLabel = gtk_label_new(NULL);

-        g_object_ref(m_maxLabel);

         gtk_widget_show( m_maxLabel );
         gtk_widget_show( m_maxLabel );

-        gtk_container_add( GTK_CONTAINER(box), m_maxLabel );
-        gtk_box_set_child_packing( GTK_BOX(box), m_maxLabel, FALSE, FALSE, 0, GTK_PACK_END );
+        gtk_box_pack_end(GTK_BOX(box), m_maxLabel, false, false, 0);

     }
     else
     {
     }
     else
     {


@@ -356,6 +340,7 @@ bool wxSlider::Create(wxWindow *parent,
         m_maxLabel = NULL;
         m_minLabel = NULL;
     }
         m_maxLabel = NULL;
         m_minLabel = NULL;
     }

+    g_object_ref(m_widget);

 
     const bool showValueLabel = (style & wxSL_VALUE_LABEL) != 0;
     gtk_scale_set_draw_value(GTK_SCALE (m_scale), showValueLabel );
 
     const bool showValueLabel = (style & wxSL_VALUE_LABEL) != 0;
     gtk_scale_set_draw_value(GTK_SCALE (m_scale), showValueLabel );


@@ -440,6 +425,8 @@ void wxSlider::GTKSetValue(int value)
 {
     GTKDisableEvents();
     gtk_range_set_value(GTK_RANGE (m_scale), 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();
 }
 
     GTKEnableEvents();
 }
 


@@ -473,12 +460,14 @@ void wxSlider::SetRange( int minValue, int maxValue )
 
 int wxSlider::GetMin() const
 {
 
 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
 {
 }
 
 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 )
 }
 
 void wxSlider::SetPageSize( int pageSize )


@@ -490,7 +479,8 @@ void wxSlider::SetPageSize( int pageSize )
 
 int wxSlider::GetPageSize() const
 {
 
 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
 }
 
 // GTK does not support changing the size of the slider


@@ -512,19 +502,25 @@ void wxSlider::SetLineSize( int lineSize )
 
 int wxSlider::GetLineSize() const
 {
 
 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
 {
 }
 
 GdkWindow *wxSlider::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 {

+#ifdef __WXGTK3__
+    // no access to internal GdkWindows
+    return NULL;
+#else

     return GTK_RANGE(m_scale)->event_window;
     return GTK_RANGE(m_scale)->event_window;

+#endif

 }
 
 // static
 wxVisualAttributes
 wxSlider::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 {
 }
 
 // static
 wxVisualAttributes
 wxSlider::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 {

-    return GetDefaultAttributesFromGTKWidget(gtk_vscale_new);
+    return GetDefaultAttributesFromGTKWidget(gtk_scale_new(GTK_ORIENTATION_VERTICAL, NULL));

 }
 
 #endif // wxUSE_SLIDER
 }
 
 #endif // wxUSE_SLIDER