defer creating bitmap representation until it is needed

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

diff --git a/src/gtk/control.cpp b/src/gtk/control.cpp
index 41f5cc4ea1737f5e7794e4ab4a323be70585be2f..b79878875b33ec6d2fad082dff46b70df6655df0 100644 (file)
--- a/src/gtk/control.cpp
+++ b/src/gtk/control.cpp
@@ -1,38 +1,43 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        control.cpp
-// Purpose:
+// Name:        src/gtk/control.cpp
+// Purpose:     wxControl implementation for wxGTK

 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "control.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 

-#include "wx/defs.h"
-

 #if wxUSE_CONTROLS
 
 #include "wx/control.h"
 #if wxUSE_CONTROLS
 
 #include "wx/control.h"

+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/settings.h"
+#endif
+

 #include "wx/fontutil.h"
 #include "wx/fontutil.h"

-#include "wx/settings.h"
+#include "wx/gtk/private.h"
+#include "wx/utils.h"
+#include "wx/sysopt.h"

 
 

-#include <gtk/gtk.h>
+#include "wx/gtk/private/mnemonics.h"

 
 

-//-----------------------------------------------------------------------------
-// wxControl
-//-----------------------------------------------------------------------------
+// ============================================================================
+// wxControl implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxControl creation
+// ----------------------------------------------------------------------------

 
 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
 
 wxControl::wxControl()
 {
 
 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
 
 wxControl::wxControl()
 {

-    m_needParent = TRUE;

 }
 
 bool wxControl::Create( wxWindow *parent,
 }
 
 bool wxControl::Create( wxWindow *parent,


@@ -44,7 +49,7 @@ bool wxControl::Create( wxWindow *parent,
                       const wxString &name )
 {
     bool ret = wxWindow::Create(parent, id, pos, size, style, name);
                       const wxString &name )
 {
     bool ret = wxWindow::Create(parent, id, pos, size, style, name);

-    
+

 #if wxUSE_VALIDATORS
     SetValidator(validator);
 #endif
 #if wxUSE_VALIDATORS
     SetValidator(validator);
 #endif


@@ -52,43 +57,27 @@ bool wxControl::Create( wxWindow *parent,
     return ret;
 }
 
     return ret;
 }
 

-void wxControl::SetLabel( const wxString &label )
-{
-    m_label.Empty();
-    for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ )
-    {
-        if ( *pc == wxT('&') )
-        {
-            pc++; // skip it
-#if 0 // it would be unused anyhow for now - kbd interface not done yet
-            if ( *pc != wxT('&') ) m_chAccel = *pc;
-#endif
-        }
-        m_label << *pc;
-    }
-}
-
-wxString wxControl::GetLabel() const
-{
-    return m_label;
-}
-
-

 wxSize wxControl::DoGetBestSize() const
 {
     // Do not return any arbitrary default value...
     wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
 
 wxSize wxControl::DoGetBestSize() const
 {
     // Do not return any arbitrary default value...
     wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
 

-    GtkRequisition req;
-    req.width = 2;
-    req.height = 2;
-    (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
-        (m_widget, &req );
-
-    return wxSize(req.width, req.height);
+    wxSize best;
+    if (m_wxwindow)
+    {
+        // this is not a native control, size_request is likely to be (0,0)
+        best = wxControlBase::DoGetBestSize();
+    }
+    else
+    {
+        GtkRequisition req;
+        GTK_WIDGET_GET_CLASS(m_widget)->size_request(m_widget, &req);
+        best.Set(req.width, req.height);
+    }
+    CacheBestSize(best);
+    return best;

 }
 
 }
 

-

 void wxControl::PostCreation(const wxSize& size)
 {
     wxWindow::PostCreation();
 void wxControl::PostCreation(const wxSize& size)
 {
     wxWindow::PostCreation();


@@ -99,57 +88,120 @@ void wxControl::PostCreation(const wxSize& size)
     //     size. This call ensure that a style is available at the time
     //     GetBestSize is called.
     gtk_widget_ensure_style(m_widget);
     //     size. This call ensure that a style is available at the time
     //     GetBestSize is called.
     gtk_widget_ensure_style(m_widget);

-    
-    InheritAttributes();
-    ApplyWidgetStyle();
-    SetInitialBestSize(size);
+
+    GTKApplyWidgetStyle();
+    SetInitialSize(size);

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// Work around a GTK+ bug whereby button is insensitive after being
+// enabled
+// ----------------------------------------------------------------------------

 
 

-#ifdef __WXGTK20__
-wxString wxControl::PrepareLabelMnemonics( const wxString &label ) const
+// Fix sensitivity due to bug in GTK+ < 2.14
+void wxControl::GTKFixSensitivity(bool onlyIfUnderMouse)

 {
 {

-    //Format mnemonics properly for GTK2. This can be called from GTK1.x, but
-    //it's not very useful because mnemonics don't exist prior to GTK2.
-    wxString label2;
-    for (size_t i = 0; i < label.Len(); i++)
+    if (gtk_check_version(2,14,0)
+#if wxUSE_SYSTEM_OPTIONS
+        && (wxSystemOptions::GetOptionInt(wxT("gtk.control.disable-sensitivity-fix")) != 1)
+#endif
+        )

     {
     {

-        if (label.GetChar(i) == wxT('&'))
-        {
-            //Mnemonic escape sequence "&&" is a literal "&" in the output.
-            if (label.GetChar(i + 1) == wxT('&'))
-            {
-                label2 << wxT('&');
-                i++;
-            }
-            //Handle special case of "&_" (i.e. "_" is the mnemonic).
-            //FIXME - Is it possible to use "_" as a GTK mnemonic? Just use a
-            //dash for now.
-            else if (label.GetChar(i + 1) == wxT('_'))
-            {
-                label2 << wxT("_-");
-                i++;
-            }
-            //Replace WX mnemonic indicator "&" with GTK indicator "_".
-            else
-            {
-                label2 << wxT('_');
-            }
-        }
-        else if (label.GetChar(i) == wxT('_'))
-        {
-            //Escape any underlines in the string so GTK doesn't use them.
-            label2 << wxT("__");
-        }
-        else
+        wxPoint pt = wxGetMousePosition();
+        wxRect rect(ClientToScreen(wxPoint(0, 0)), GetSize());
+        if (!onlyIfUnderMouse || rect.Contains(pt))

         {
         {

-            label2 << label.GetChar(i);
+            Hide();
+            Show();

         }
     }
         }
     }

-    return label2;

 }
 }

-#endif

 
 

+// ----------------------------------------------------------------------------
+// wxControl dealing with labels
+// ----------------------------------------------------------------------------
+
+void wxControl::GTKSetLabelForLabel(GtkLabel *w, const wxString& label)
+{
+    // save the original label
+    wxControlBase::SetLabel(label);
+
+    const wxString labelGTK = GTKConvertMnemonics(label);
+    gtk_label_set_text_with_mnemonic(w, wxGTK_CONV(labelGTK));
+}
+
+void wxControl::GTKSetLabelWithMarkupForLabel(GtkLabel *w, const wxString& label)
+{
+    const wxString labelGTK = GTKConvertMnemonicsWithMarkup(label);
+    gtk_label_set_markup_with_mnemonic(w, wxGTK_CONV(labelGTK));
+}
+
+
+// ----------------------------------------------------------------------------
+// GtkFrame helpers
+//
+// GtkFrames do in fact support mnemonics in GTK2+ but not through
+// gtk_frame_set_label, rather you need to use a custom label widget
+// instead (idea gleaned from the native gtk font dialog code in GTK)
+// ----------------------------------------------------------------------------
+
+GtkWidget* wxControl::GTKCreateFrame(const wxString& label)
+{
+    const wxString labelGTK = GTKConvertMnemonics(label);
+    GtkWidget* labelwidget = gtk_label_new_with_mnemonic(wxGTK_CONV(labelGTK));
+    gtk_widget_show(labelwidget); // without this it won't show...
+
+    GtkWidget* framewidget = gtk_frame_new(NULL);
+    gtk_frame_set_label_widget(GTK_FRAME(framewidget), labelwidget);
+
+    return framewidget; // note that the label is already set so you'll
+                        // only need to call wxControl::SetLabel afterwards
+}
+
+void wxControl::GTKSetLabelForFrame(GtkFrame *w, const wxString& label)
+{
+    GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w));
+    GTKSetLabelForLabel(labelwidget, label);
+}
+
+void wxControl::GTKFrameApplyWidgetStyle(GtkFrame* w, GtkRcStyle* style)
+{
+    gtk_widget_modify_style(GTK_WIDGET(w), style);
+    gtk_widget_modify_style(gtk_frame_get_label_widget (w), style);
+}
+
+void wxControl::GTKFrameSetMnemonicWidget(GtkFrame* w, GtkWidget* widget)
+{
+    GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w));
+
+    gtk_label_set_mnemonic_widget(labelwidget, widget);
+}
+
+// ----------------------------------------------------------------------------
+// worker function implementing GTK*Mnemonics() functions
+// ----------------------------------------------------------------------------
+
+/* static */
+wxString wxControl::GTKRemoveMnemonics(const wxString& label)
+{
+    return wxGTKRemoveMnemonics(label);
+}
+
+/* static */
+wxString wxControl::GTKConvertMnemonics(const wxString& label)
+{
+    return wxConvertMnemonicsToGTK(label);
+}
+
+/* static */
+wxString wxControl::GTKConvertMnemonicsWithMarkup(const wxString& label)
+{
+    return wxConvertMnemonicsToGTKMarkup(label);
+}
+
+// ----------------------------------------------------------------------------
+// wxControl styles (a.k.a. attributes)
+// ----------------------------------------------------------------------------

 
 wxVisualAttributes wxControl::GetDefaultAttributes() const
 {
 
 wxVisualAttributes wxControl::GetDefaultAttributes() const
 {


@@ -157,9 +209,6 @@ wxVisualAttributes wxControl::GetDefaultAttributes() const
                                              UseGTKStyleBase());
 }
 
                                              UseGTKStyleBase());
 }
 

-
-#define SHIFT (8*(sizeof(short int)-sizeof(char)))
-

 // static
 wxVisualAttributes
 wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,
 // static
 wxVisualAttributes
 wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,


@@ -180,36 +229,29 @@ wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,
 
     if (state == -1)
         state = GTK_STATE_NORMAL;
 
     if (state == -1)
         state = GTK_STATE_NORMAL;

-        
+

     // get the style's colours
     // get the style's colours

-    attr.colFg = wxColour(style->fg[state].red   >> SHIFT,
-                          style->fg[state].green >> SHIFT,
-                          style->fg[state].blue  >> SHIFT);
+    attr.colFg = wxColour(style->fg[state]);

     if (useBase)
     if (useBase)

-        attr.colBg = wxColour(style->base[state].red   >> SHIFT,
-                              style->base[state].green >> SHIFT,
-                              style->base[state].blue  >> SHIFT);
+        attr.colBg = wxColour(style->base[state]);

     else
     else

-        attr.colBg = wxColour(style->bg[state].red   >> SHIFT,
-                              style->bg[state].green >> SHIFT,
-                              style->bg[state].blue  >> SHIFT);
+        attr.colBg = wxColour(style->bg[state]);

 
     // get the style's font
 
     // get the style's font

-#ifdef __WXGTK20__

     if ( !style->font_desc )
     if ( !style->font_desc )

-        style = gtk_widget_get_default_style();  
+        style = gtk_widget_get_default_style();

     if ( style && style->font_desc )
     if ( style && style->font_desc )

-    {  
-        wxNativeFontInfo info;  
-        info.description = style->font_desc;  
-        attr.font = wxFont(info);  
-    }  
-    else  
-    {  
+    {
+        wxNativeFontInfo info;
+        info.description = pango_font_description_copy(style->font_desc);
+        attr.font = wxFont(info);
+    }
+    else
+    {

         GtkSettings *settings = gtk_settings_get_default();
         gchar *font_name = NULL;
         g_object_get ( settings,
         GtkSettings *settings = gtk_settings_get_default();
         gchar *font_name = NULL;
         g_object_get ( settings,

-                       "gtk-font-name", 
+                       "gtk-font-name",

                        &font_name,
                        NULL);
         if (!font_name)
                        &font_name,
                        NULL);
         if (!font_name)


@@ -217,55 +259,77 @@ wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,
         else
             attr.font = wxFont(wxString::FromAscii(font_name));
         g_free (font_name);
         else
             attr.font = wxFont(wxString::FromAscii(font_name));
         g_free (font_name);

-    }  
-#else
-    // TODO: isn't there a way to get a standard gtk 1.2 font?
-    attr.font = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
-#endif
-    
+    }
+

     return attr;
 }
 
 
 //static
 wxVisualAttributes
     return attr;
 }
 
 
 //static
 wxVisualAttributes

-wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* (*widget_new)(void),
+wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNew_t widget_new,

                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;
                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;

+    // NB: we need toplevel window so that GTK+ can find the right style
+    GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);

     GtkWidget* widget = widget_new();
     GtkWidget* widget = widget_new();

+    gtk_container_add(GTK_CONTAINER(wnd), widget);

     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);

-    gtk_widget_destroy(widget);
+    gtk_widget_destroy(wnd);

     return attr;
 }
 
 //static
 wxVisualAttributes
     return attr;
 }
 
 //static
 wxVisualAttributes

-wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* (*widget_new)(const gchar*),
+wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromStr_t widget_new,

                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;
                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;

+    // NB: we need toplevel window so that GTK+ can find the right style
+    GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);

     GtkWidget* widget = widget_new("");
     GtkWidget* widget = widget_new("");

+    gtk_container_add(GTK_CONTAINER(wnd), widget);

     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);

-    gtk_widget_destroy(widget);
+    gtk_widget_destroy(wnd);

     return attr;
 }
 
 
 //static
 wxVisualAttributes
     return attr;
 }
 
 
 //static
 wxVisualAttributes

-wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* (*widget_new)(GtkAdjustment*),
+wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromAdj_t widget_new,

                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;
                                              bool useBase,
                                              int state)
 {
     wxVisualAttributes attr;

+    // NB: we need toplevel window so that GTK+ can find the right style
+    GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);

     GtkWidget* widget = widget_new(NULL);
     GtkWidget* widget = widget_new(NULL);

+    gtk_container_add(GTK_CONTAINER(wnd), widget);

     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);

-    gtk_widget_destroy(widget);
+    gtk_widget_destroy(wnd);

     return attr;
 }
 
     return attr;
 }
 

-#endif // wxUSE_CONTROLS
+// ----------------------------------------------------------------------------
+// idle handling
+// ----------------------------------------------------------------------------

 
 

+void wxControl::OnInternalIdle()
+{
+    if ( GTKShowFromOnIdle() )
+        return;
+
+    if ( GTK_WIDGET_REALIZED(m_widget) )
+    {
+        GTKUpdateCursor();
+    }
+
+    if ( wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen() )
+        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
+}
+
+#endif // wxUSE_CONTROLS