reduce black background flicker a bit - there is still some left sometimes initially...

[wxWidgets.git] / src / gtk1 / button.cpp

diff --git a/src/gtk1/button.cpp b/src/gtk1/button.cpp
index d4361f37b8d42946eafdf6bdc2927b12ad3717ac..435358d25ffb4da2b54cc1402e327246d47c3726 100644 (file)
--- a/src/gtk1/button.cpp
+++ b/src/gtk1/button.cpp
@@ -2,17 +2,26 @@
 // Name:        button.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Name:        button.cpp
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "button.h"
 #endif
 
 #pragma implementation "button.h"
 #endif
 

+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#include "wx/defs.h"
+
+#if wxUSE_BUTTON
+

 #include "wx/button.h"
 #include "wx/button.h"

+#include "wx/stockitem.h"
+
+#include "wx/gtk/private.h"

 
 //-----------------------------------------------------------------------------
 // classes
 
 //-----------------------------------------------------------------------------
 // classes


@@ -21,69 +30,277 @@
 class wxButton;
 
 //-----------------------------------------------------------------------------
 class wxButton;
 
 //-----------------------------------------------------------------------------

-// wxButton
+// idle system

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern bool   g_blockEventsOnDrag;

 
 

-void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+//-----------------------------------------------------------------------------
+// "clicked"
+//-----------------------------------------------------------------------------
+
+static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )

 {
 {

-  wxButton *button = (wxButton*)data;
-  wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
-  event.SetEventObject(button);
-  button->ProcessEvent(event);
-};
+    if (g_isIdle)
+       wxapp_install_idle_handler();
+
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;
+
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
+    event.SetEventObject(button);
+    button->GetEventHandler()->ProcessEvent(event);
+}

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

+// wxButton
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)

 
 

-wxButton::wxButton(void)
+wxButton::wxButton()

 {
 {

-};
+}

 
 

-wxButton::wxButton( wxWindow *parent, wxWindowID id, const wxString &label,
-      const wxPoint &pos, const wxSize &size, 
-      const long style, const wxString &name )
+wxButton::~wxButton()

 {
 {

-  Create( parent, id, label, pos, size, style, name );
-};
+}

 
 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
 
 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,

-      const wxPoint &pos, const wxSize &size, 
-      const long style, const wxString &name )
+      const wxPoint &pos, const wxSize &size,
+      long style, const wxValidator& validator, const wxString &name )

 {
 {

-  m_needParent = TRUE;
-  
-  wxSize newSize = size;
-
-  PreCreation( parent, id, pos, newSize, style, name );
-  
-  m_label = label;
-  m_widget = gtk_button_new_with_label( label );
-  
-  if (newSize.x == -1) newSize.x = 15+gdk_string_measure( m_widget->style->font, label );
-  if (newSize.y == -1) newSize.y = 26;
-  SetSize( newSize.x, newSize.y );
-  
-  gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
-
-  PostCreation();
-  
-  Show( TRUE );
+    m_needParent = TRUE;
+    m_acceptsFocus = TRUE;
+
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxButton creation failed") );
+        return FALSE;
+    }
+
+/*
+    wxString label2( label );
+    for (size_t i = 0; i < label2.Len(); i++)
+    {
+        if (label2.GetChar(i) == wxT('&'))
+        label2.SetChar(i,wxT('_'));
+    }
+
+    GtkWidget *accel_label = gtk_accel_label_new( label2.mb_str() );
+    gtk_widget_show( accel_label );
+
+    m_widget = gtk_button_new();
+    gtk_container_add( GTK_CONTAINER(m_widget), accel_label );
+
+    gtk_accel_label_set_accel_widget( GTK_ACCEL_LABEL(accel_label), m_widget );
+
+    guint accel_key = gtk_label_parse_uline (GTK_LABEL(accel_label), label2.mb_str() );
+    gtk_accel_label_refetch( GTK_ACCEL_LABEL(accel_label) );
+
+    wxControl::SetLabel( label );
+*/
+
+#ifdef __WXGTK20__
+    m_widget = gtk_button_new_with_mnemonic("");
+#else
+    m_widget = gtk_button_new_with_label("");
+#endif
+
+    float x_alignment = 0.5;
+    if (HasFlag(wxBU_LEFT))
+        x_alignment = 0.0;
+    else if (HasFlag(wxBU_RIGHT))
+        x_alignment = 1.0;
+
+    float y_alignment = 0.5;
+    if (HasFlag(wxBU_TOP))
+        y_alignment = 0.0;
+    else if (HasFlag(wxBU_BOTTOM))
+        y_alignment = 1.0;
+
+#if GTK_CHECK_VERSION(2,4,0)
+    gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment);
+#else
+    if (GTK_IS_MISC(BUTTON_CHILD(m_widget)))
+        gtk_misc_set_alignment (GTK_MISC (BUTTON_CHILD (m_widget)),
+                                x_alignment, y_alignment);
+#endif
+
+    SetLabel(label);
+
+    if (style & wxNO_BORDER)
+       gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
+
+    gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
+      GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
+
+    m_parent->DoAddChild( this );
+
+    PostCreation(size);
+
+    return true;
+}
+    
+
+void wxButton::SetDefault()
+{
+    wxWindow *parent = GetParent();
+    wxCHECK_RET( parent, _T("button without parent?") );
+
+    parent->SetDefaultItem(this);

     
     

-  return TRUE;
-};
-      
-void wxButton::SetDefault(void)
+    GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
+    gtk_widget_grab_default( m_widget );
+
+    SetSize( m_x, m_y, m_width, m_height );
+}
+
+/* static */
+wxSize wxButtonBase::GetDefaultSize()
+{
+#ifdef __WXGTK20__
+    static wxSize size = wxDefaultSize;
+    if (size == wxDefaultSize)
+    {
+        // NB: Default size of buttons should be same as size of stock
+        //     buttons as used in most GTK+ apps. Unfortunately it's a little
+        //     tricky to obtain this size: stock button's size may be smaller
+        //     than size of button in GtkButtonBox and vice versa,
+        //     GtkButtonBox's minimal button size may be smaller than stock
+        //     button's size. We have to retrieve both values and combine them.
+
+        GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+        GtkWidget *box = gtk_hbutton_box_new();
+        GtkWidget *btn = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
+        gtk_container_add(GTK_CONTAINER(box), btn);
+        gtk_container_add(GTK_CONTAINER(wnd), box);
+        GtkRequisition req;
+        gtk_widget_size_request(btn, &req);
+
+        gint minwidth, minheight;
+        gtk_widget_style_get(box,
+                             "child-min-width", &minwidth,
+                             "child-min-height", &minheight,
+                             NULL);
+
+        size.x = wxMax(minwidth, req.width);
+        size.y = wxMax(minheight, req.height);
+        
+        gtk_widget_destroy(wnd);
+    }
+    return size;
+#else
+    return wxSize(80,26);
+#endif
+}
+
+void wxButton::SetLabel( const wxString &lbl )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
+
+    wxString label(lbl);
+
+    if (label.empty() && wxIsStockID(m_windowId))
+        label = wxGetStockLabel(m_windowId);
+
+    wxControl::SetLabel(label);
+
+#ifdef __WXGTK20__
+    if (wxIsStockID(m_windowId) && wxIsStockLabel(m_windowId, label))
+    {
+        const char *stock = wxGetStockGtkID(m_windowId);
+        if (stock)
+        {
+            gtk_button_set_label(GTK_BUTTON(m_widget), stock);
+            gtk_button_set_use_stock(GTK_BUTTON(m_widget), TRUE);
+            return;
+        }
+    }
+
+    wxString label2 = PrepareLabelMnemonics(label);
+    gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(label2));
+    gtk_button_set_use_stock(GTK_BUTTON(m_widget), FALSE);
+#else
+    gtk_label_set(GTK_LABEL(BUTTON_CHILD(m_widget)), wxGTK_CONV(GetLabel()));
+#endif
+}
+
+bool wxButton::Enable( bool enable )
+{
+    if ( !wxControl::Enable( enable ) )
+        return FALSE;
+
+    gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable );
+
+    return TRUE;
+}
+
+bool wxButton::IsOwnGtkWindow( GdkWindow *window )
+{
+#ifdef __WXGTK20__
+    return GTK_BUTTON(m_widget)->event_window;
+#else
+    return (window == m_widget->window);
+#endif
+}
+
+void wxButton::DoApplyWidgetStyle(GtkRcStyle *style)

 {
 {

-};
+    gtk_widget_modify_style(m_widget, style);
+    gtk_widget_modify_style(BUTTON_CHILD(m_widget), style);
+}

 
 

-void wxButton::SetLabel( const wxString &label )
+wxSize wxButton::DoGetBestSize() const

 {
 {

-  wxControl::SetLabel( label );
-};
+    // the default button in wxGTK is bigger than the other ones because of an
+    // extra border around it, but we don't want to take it into account in
+    // our size calculations (otherwsie the result is visually ugly), so
+    // always return the size of non default button from here
+    const bool isDefault = GTK_WIDGET_HAS_DEFAULT(m_widget);
+    if ( isDefault )
+    {
+        // temporarily unset default flag
+        GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_DEFAULT );
+    }
+
+    wxSize ret( wxControl::DoGetBestSize() );
+
+    if ( isDefault )
+    {
+        // set it back again
+        GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
+    }

 
 

-wxString wxButton::GetLabel(void) const
+#ifndef __WXGTK20__
+    ret.x += 10;  // add a few pixels for sloppy (but common) themes
+#endif
+    
+    if (!HasFlag(wxBU_EXACTFIT))
+    {
+        wxSize defaultSize = GetDefaultSize();
+        if (ret.x < defaultSize.x) ret.x = defaultSize.x;
+        if (ret.y < defaultSize.y) ret.y = defaultSize.y;
+    }
+
+    CacheBestSize(ret);
+    return ret;
+}
+
+// static
+wxVisualAttributes
+wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))

 {
 {

-  return wxControl::GetLabel();
-};
+    return GetDefaultAttributesFromGTKWidget(gtk_button_new);
+}
+
+#endif // wxUSE_BUTTON
+