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[wxWidgets.git] / src / gtk / button.cpp
diff --git a/src/gtk/button.cpp b/src/gtk/button.cpp
index 01b3283adcd389665996f97dd30995b20bc4bcd5..a2ec92fdde239c3d860c2a4668e1ec5e771e5b2a 100644 (file)
--- a/src/gtk/button.cpp
+++ b/src/gtk/button.cpp
@@ -1,194 +1,335 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////
-// Name:        button.cpp
+// Name:        src/gtk/button.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "button.h"
-#endif
-
-#include "wx/defs.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
 #if wxUSE_BUTTON
 
 
 #if wxUSE_BUTTON
 
-#include "wx/button.h"
-
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
-
-//-----------------------------------------------------------------------------
-// classes
-//-----------------------------------------------------------------------------
-
-class wxButton;
-
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+    #include "wx/button.h"
+#endif
 
 
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#include "wx/stockitem.h"
 
 
-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
+#include "wx/gtk/private/gtk2-compat.h"
+#include "wx/gtk/private/list.h"
 
 
-extern bool   g_blockEventsOnDrag;
+// ----------------------------------------------------------------------------
+// GTK callbacks
+// ----------------------------------------------------------------------------
 
 
-//-----------------------------------------------------------------------------
-// "clicked"
-//-----------------------------------------------------------------------------
+extern "C"
+{
 
 
-static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
+static void
+wxgtk_button_clicked_callback(GtkWidget *WXUNUSED(widget), wxButton *button)
 {
 {
-    if (g_isIdle) 
-       wxapp_install_idle_handler();
+    if ( button->GTKShouldIgnoreEvent() )
+        return;
 
 
-    if (!button->m_hasVMT) return;
-    if (g_blockEventsOnDrag) return;
-    
-    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
+    wxCommandEvent event(wxEVT_BUTTON, button->GetId());
     event.SetEventObject(button);
     event.SetEventObject(button);
-    button->GetEventHandler()->ProcessEvent(event);
+    button->HandleWindowEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------
-// wxButton
+// "style_set" from m_widget
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
-
-wxButton::wxButton()
+static void
+wxgtk_button_style_set_callback(GtkWidget* widget, GtkStyle*, wxButton* win)
 {
 {
+    /* the default button has a border around it */
+    wxWindow* parent = win->GetParent();
+    if (parent && parent->m_wxwindow && gtk_widget_get_can_default(widget))
+    {
+        GtkBorder* border = NULL;
+        gtk_widget_style_get(widget, "default_border", &border, NULL);
+        if (border)
+        {
+            win->MoveWindow(
+                win->m_x - border->left,
+                win->m_y - border->top,
+                win->m_width + border->left + border->right,
+                win->m_height + border->top + border->bottom);
+            gtk_border_free(border);
+        }
+    }
 }
 
 }
 
-wxButton::~wxButton()
-{
-}
+} // extern "C"
 
 
-bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
-      const wxPoint &pos, const wxSize &size,
-      long style, const wxValidator& validator, const wxString &name )
-{
-    m_needParent = TRUE;
-    m_acceptsFocus = TRUE;
+//-----------------------------------------------------------------------------
+// wxButton
+//-----------------------------------------------------------------------------
 
 
+bool wxButton::Create(wxWindow *parent,
+                      wxWindowID id,
+                      const wxString &label,
+                      const wxPoint& pos,
+                      const wxSize& size,
+                      long style,
+                      const wxValidator& validator,
+                      const wxString& name)
+{
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxButton creation failed") );
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxButton creation failed") );
-           return FALSE;
+        return false;
     }
 
     }
 
-/*
-    wxString label2( label );
-    for (size_t i = 0; i < label2.Len(); i++)
+    // create either a standard button with text label (which may still contain
+    // an image under GTK+ 2.6+) or a bitmap-only button if we don't have any
+    // label
+    const bool
+        useLabel = !(style & wxBU_NOTEXT) && (!label.empty() || wxIsStockID(id));
+    if ( useLabel )
     {
     {
-        if (label2.GetChar(i) == wxT('&'))
-           label2.SetChar(i,wxT('_'));
+        m_widget = gtk_button_new_with_mnemonic("");
     }
     }
-    
-    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 );
-*/
-    
-    m_widget = gtk_button_new_with_label("");
-
-    SetLabel( label );
-
-#if (GTK_MINOR_VERSION > 0)    
-    if (style & wxNO_BORDER)
-       gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
-#endif
+    else // no label, suppose we will have a bitmap
+    {
+        m_widget = gtk_button_new();
 
 
-    gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
-      GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
+        GtkWidget *image = gtk_image_new();
+        gtk_widget_show(image);
+        gtk_container_add(GTK_CONTAINER(m_widget), image);
+    }
 
 
-    m_parent->DoAddChild( this );
-  
-    PostCreation();
-  
-    SetFont( parent->GetFont() );
+    g_object_ref(m_widget);
+
+    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;
+
+    gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment);
 
 
-    wxSize best_size( DoGetBestSize() );
-    wxSize new_size( size );
-    if (new_size.x == -1)
-        new_size.x = best_size.x;
-    if (new_size.y == -1)
-        new_size.y = best_size.y;
-    if ((new_size.x != size.x) || (new_size.y != size.y))
-        SetSize( new_size.x, new_size.y );
+    if ( useLabel )
+        SetLabel(label);
 
 
-    SetSize( new_size );
+    if (style & wxNO_BORDER)
+       gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
+
+    g_signal_connect_after (m_widget, "clicked",
+                            G_CALLBACK (wxgtk_button_clicked_callback),
+                            this);
 
 
-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
+    g_signal_connect_after (m_widget, "style_set",
+                            G_CALLBACK (wxgtk_button_style_set_callback),
+                            this);
+
+    m_parent->DoAddChild( this );
 
 
-    Show( TRUE );
+    PostCreation(size);
 
 
-    return TRUE;
+    return true;
 }
 
 }
 
-void wxButton::SetDefault()
+
+wxWindow *wxButton::SetDefault()
 {
 {
-    GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
+    wxWindow *oldDefault = wxButtonBase::SetDefault();
+
+    gtk_widget_set_can_default(m_widget, TRUE);
     gtk_widget_grab_default( m_widget );
     gtk_widget_grab_default( m_widget );
-    
-    SetSize( m_x, m_y, m_width, m_height );
+
+    // resize for default border
+    wxgtk_button_style_set_callback( m_widget, NULL, this );
+
+    return oldDefault;
 }
 
 /* static */
 }
 
 /* static */
-wxSize wxButton::GetDefaultSize()
+wxSize wxButtonBase::GetDefaultSize()
 {
 {
-    return wxSize(80,26);
+    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_button_box_new(GTK_ORIENTATION_HORIZONTAL);
+        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_get_preferred_size(btn, NULL, &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;
 }
 
 }
 
-void wxButton::SetLabel( const wxString &label )
+void wxButton::SetLabel( const wxString &lbl )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
-  
-    wxControl::SetLabel( label );
-  
-    gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel().mbc_str() );
+
+    wxString label(lbl);
+
+    if (label.empty() && wxIsStockID(m_windowId))
+        label = wxGetStockLabel(m_windowId);
+
+    wxAnyButton::SetLabel(label);
+
+    // don't use label if it was explicitly disabled
+    if ( HasFlag(wxBU_NOTEXT) )
+        return;
+
+    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;
+        }
+    }
+
+    // this call is necessary if the button had been initially created without
+    // a (text) label -- then we didn't use gtk_button_new_with_mnemonic() and
+    // so "use-underline" GtkButton property remained unset
+    gtk_button_set_use_underline(GTK_BUTTON(m_widget), TRUE);
+    const wxString labelGTK = GTKConvertMnemonics(label);
+    gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
+    gtk_button_set_use_stock(GTK_BUTTON(m_widget), FALSE);
+
+    GTKApplyWidgetStyle( false );
+}
+
+#if wxUSE_MARKUP
+bool wxButton::DoSetLabelMarkup(const wxString& markup)
+{
+    wxCHECK_MSG( m_widget != NULL, false, "invalid button" );
+
+    const wxString stripped = RemoveMarkup(markup);
+    if ( stripped.empty() && !markup.empty() )
+        return false;
+
+    wxControl::SetLabel(stripped);
+
+    GtkLabel * const label = GTKGetLabel();
+    wxCHECK_MSG( label, false, "no label in this button?" );
+
+    GTKSetLabelWithMarkupForLabel(label, markup);
+
+    return true;
 }
 
 }
 
-bool wxButton::Enable( bool enable )
+GtkLabel *wxButton::GTKGetLabel() const
 {
 {
-    if ( !wxControl::Enable( enable ) )
-        return FALSE;
-  
-    gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
+    GtkWidget* child = gtk_bin_get_child(GTK_BIN(m_widget));
+    if ( GTK_IS_ALIGNMENT(child) )
+    {
+        GtkWidget* box = gtk_bin_get_child(GTK_BIN(child));
+        GtkLabel* label = NULL;
+        wxGtkList list(gtk_container_get_children(GTK_CONTAINER(box)));
+        for (GList* item = list; item; item = item->next)
+        {
+            if (GTK_IS_LABEL(item->data))
+                label = GTK_LABEL(item->data);
+        }
+
+        return label;
+    }
 
 
-    return TRUE;
+    return GTK_LABEL(child);
 }
 }
+#endif // wxUSE_MARKUP
 
 
-void wxButton::ApplyWidgetStyle()
+void wxButton::DoApplyWidgetStyle(GtkRcStyle *style)
 {
 {
-    SetWidgetStyle();
-    gtk_widget_set_style( m_widget, m_widgetStyle );
-    gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
+    GTKApplyStyle(m_widget, style);
+    GtkWidget* child = gtk_bin_get_child(GTK_BIN(m_widget));
+    GTKApplyStyle(child, style);
+
+    // for buttons with images, the path to the label is (at least in 2.12)
+    // GtkButton -> GtkAlignment -> GtkHBox -> GtkLabel
+    if ( GTK_IS_ALIGNMENT(child) )
+    {
+        GtkWidget* box = gtk_bin_get_child(GTK_BIN(child));
+        if ( GTK_IS_BOX(box) )
+        {
+            wxGtkList list(gtk_container_get_children(GTK_CONTAINER(box)));
+            for (GList* item = list; item; item = item->next)
+            {
+                GTKApplyStyle(GTK_WIDGET(item->data), style);
+            }
+        }
+    }
 }
 
 wxSize wxButton::DoGetBestSize() const
 {
 }
 
 wxSize wxButton::DoGetBestSize() const
 {
-    wxSize ret( wxControl::DoGetBestSize() );
-    if (ret.x < 80) ret.x = 80;
+    // 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 (otherwise 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) != 0;
+    if ( isDefault )
+    {
+        // temporarily unset default flag
+        gtk_widget_set_can_default(m_widget, FALSE);
+    }
+
+    wxSize ret( wxAnyButton::DoGetBestSize() );
+
+    if ( isDefault )
+    {
+        // set it back again
+        gtk_widget_set_can_default(m_widget, TRUE);
+    }
+
+    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;
 }
 
     return ret;
 }
 
-#endif // wxUSE_BUTTON
+// static
+wxVisualAttributes
+wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    return GetDefaultAttributesFromGTKWidget(gtk_button_new());
+}
 
 
+#endif // wxUSE_BUTTON
wxWidgets (Impactor)