A little clarification

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

diff --git a/src/gtk/bmpbuttn.cpp b/src/gtk/bmpbuttn.cpp
index f1a0aa1a465684cff5b39f9da1bbd6769ee54cac..eeb89d7163cd565f18ed6cfa97d897bb10ba2d53 100644 (file)
--- a/src/gtk/bmpbuttn.cpp
+++ b/src/gtk/bmpbuttn.cpp
@@ -1,19 +1,27 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        bmpbuttn.cpp
+// Name:        gtk/bmpbuttn.cpp

 // Purpose:
 // Author:      Robert Roebling
 // 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 "bmpbuttn.h"
 #endif
 
 #pragma implementation "bmpbuttn.h"
 #endif
 

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

 #include "wx/bmpbuttn.h"
 
 #include "wx/bmpbuttn.h"
 

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

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


@@ -21,80 +29,280 @@
 class wxBitmapButton;
 
 //-----------------------------------------------------------------------------
 class wxBitmapButton;
 
 //-----------------------------------------------------------------------------

-// wxBitmapButton
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern bool   g_blockEventsOnDrag;
+
+//-----------------------------------------------------------------------------
+// "clicked"

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

-IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxControl)
+static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
+{
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;

 
 

-void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
+    event.SetEventObject(button);
+    button->GetEventHandler()->ProcessEvent(event);
+}
+
+//-----------------------------------------------------------------------------
+// "enter"
+//-----------------------------------------------------------------------------
+
+static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )

 {
 {

-  wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
-  event.SetEventObject(button);
-  button->GetEventHandler()->ProcessEvent(event);
-};
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;
+
+    button->HasFocus();
+}

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

+// "leave"
+//-----------------------------------------------------------------------------
+
+static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
+{
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;
+
+    button->NotFocus();
+}
+
+//-----------------------------------------------------------------------------
+// "pressed"
+//-----------------------------------------------------------------------------
+
+static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
+{
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;
+
+    button->StartSelect();
+}
+
+//-----------------------------------------------------------------------------
+// "released"
+//-----------------------------------------------------------------------------
+
+static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
+{
+    if (!button->m_hasVMT) return;
+    if (g_blockEventsOnDrag) return;
+
+    button->EndSelect();
+}
+
+//-----------------------------------------------------------------------------
+// wxBitmapButton
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)

 
 

-wxBitmapButton::wxBitmapButton(void)
+wxBitmapButtonBase::wxBitmapButtonBase()
+                                      : m_bmpNormal(), 
+                                        m_bmpSelected(), 
+                                        m_bmpFocus(), 
+                                        m_bmpDisabled(), 
+                                        m_marginX(0), 
+                                        m_marginY(0)

 {
 {

-};
+}

 
 

-wxBitmapButton::wxBitmapButton( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
-      const wxPoint &pos, const wxSize &size, 
-      long style, const wxString &name )
+void wxBitmapButton::Init()

 {
 {

-  Create( parent, id, bitmap, pos, size, style, name );
-};
+    m_hasFocus =
+    m_isSelected = FALSE;
+}

 
 

-bool wxBitmapButton::Create(  wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
-      const wxPoint &pos, const wxSize &size, 
-      long style, const wxString &name )
+bool wxBitmapButton::Create( wxWindow *parent,
+                             wxWindowID id,
+                             const wxBitmap& bitmap,
+                             const wxPoint& pos,
+                             const wxSize& size,
+                             long style,
+                             const wxValidator& validator,
+                             const wxString &name )

 {
 {

-  m_needParent = TRUE;
-  
-  wxSize newSize = size;
+    m_needParent = TRUE;
+    m_acceptsFocus = TRUE;
+
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
+        return FALSE;
+    }
+
+    m_bmpNormal   =
+    m_bmpDisabled =
+    m_bmpFocus    =
+    m_bmpSelected = bitmap;
+
+    m_widget = gtk_button_new();
+
+#if (GTK_MINOR_VERSION > 0)
+    if (style & wxNO_BORDER)
+       gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
+#endif
+
+    if (m_bmpNormal.Ok())
+    {
+        wxSize newSize = size;
+        int border = (style & wxNO_BORDER) ? 4 : 10;
+        if (newSize.x == -1)
+            newSize.x = m_bmpNormal.GetWidth()+border;
+        if (newSize.y == -1)
+            newSize.y = m_bmpNormal.GetHeight()+border;
+        SetSize( newSize.x, newSize.y );
+        OnSetBitmap();
+    }
+
+    gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
+      GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
+
+    gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
+      GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
+    gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
+      GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
+    gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
+      GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
+    gtk_signal_connect( GTK_OBJECT(m_widget), "released",
+      GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );

 
 

-  PreCreation( parent, id, pos, newSize, style, name );
-  
-  m_bitmap = bitmap;
-  m_label = "";
-  
-  m_widget = gtk_button_new();
-  
-  if (m_bitmap.Ok())
-  {
-    GdkBitmap *mask = NULL;
-    if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
-    GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
-    
-    gtk_widget_show( pixmap );
-    gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
-  };
-  
-  if (newSize.x == -1) newSize.x = m_bitmap.GetHeight()+10;
-  if (newSize.y == -1) newSize.y = m_bitmap.GetWidth()+10;
-  SetSize( newSize.x, newSize.y );
-  
-  gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
+    m_parent->DoAddChild( this );

 
 

-  PostCreation();
-  
-  Show( TRUE );
-    
-  return TRUE;
-};
-      
-void wxBitmapButton::SetDefault(void)
+    PostCreation();
+    InheritAttributes();
+
+    Show( TRUE );
+
+    return TRUE;
+}
+
+void wxBitmapButton::SetDefault()

 {
 {

-};
+    GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
+    gtk_widget_grab_default( m_widget );
+
+    SetSize( m_x, m_y, m_width, m_height );
+}

 
 void wxBitmapButton::SetLabel( const wxString &label )
 {
 
 void wxBitmapButton::SetLabel( const wxString &label )
 {

-  wxControl::SetLabel( label );
-};
+    wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
+
+    wxControl::SetLabel( label );
+}
+
+wxString wxBitmapButton::GetLabel() const
+{
+    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid button") );
+
+    return wxControl::GetLabel();
+}

 
 

-wxString wxBitmapButton::GetLabel(void) const
+void wxBitmapButton::ApplyWidgetStyle()

 {
 {

-  return wxControl::GetLabel();
-};
+    if ( !BUTTON_CHILD(m_widget) )
+        return;
+
+    wxButton::ApplyWidgetStyle();
+}
+
+void wxBitmapButton::OnSetBitmap()
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
+
+    wxBitmap the_one;
+    if (!m_isEnabled)
+        the_one = m_bmpDisabled;
+    else if (m_isSelected)
+        the_one = m_bmpSelected;
+    else if (m_hasFocus)
+        the_one = m_bmpFocus;
+    else
+    {
+        if (m_isSelected)
+        {
+            the_one = m_bmpSelected;
+        }
+        else
+        {
+            if (m_hasFocus)
+                the_one = m_bmpFocus;
+            else
+                the_one = m_bmpNormal;
+        }
+    }
+
+    if (!the_one.Ok()) the_one = m_bmpNormal;
+    if (!the_one.Ok()) return;
+
+    GdkBitmap *mask = (GdkBitmap *) NULL;
+    if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
+
+    GtkWidget *child = BUTTON_CHILD(m_widget);
+    if (child == NULL)
+    {
+        // initial bitmap
+        GtkWidget *pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
+        gtk_widget_show(pixmap);
+        gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
+    }
+    else
+    {   // subsequent bitmaps
+        GtkPixmap *g_pixmap = GTK_PIXMAP(child);
+        gtk_pixmap_set(g_pixmap, the_one.GetPixmap(), mask);
+    }
+}
+
+bool wxBitmapButton::Enable( bool enable )
+{
+    if ( !wxWindow::Enable(enable) )
+        return FALSE;
+
+    OnSetBitmap();
+
+    return TRUE;
+}
+
+void wxBitmapButton::HasFocus()
+{
+    m_hasFocus = TRUE;
+    OnSetBitmap();
+}
+
+void wxBitmapButton::NotFocus()
+{
+    m_hasFocus = FALSE;
+    OnSetBitmap();
+}
+
+void wxBitmapButton::StartSelect()
+{
+    m_isSelected = TRUE;
+    OnSetBitmap();
+}
+
+void wxBitmapButton::EndSelect()
+{
+    m_isSelected = FALSE;
+    OnSetBitmap();
+}
+
+#endif // wxUSE_BMPBUTTON
+