src/gtk/private.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/private.cpp
   3 // Purpose:     implementation of wxGTK private functions
   4 // Author:      Marcin Malich
   5 // Modified by:
   6 // Created:     28.06.2008
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2008 Marcin Malich <me@malcom.pl>
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/module.h"
  29 #endif
  30
  31 #include "wx/gtk/private.h"
  32
  33 // ----------------------------------------------------------------------------
  34 // wxGTKPrivate functions implementation
  35 // ----------------------------------------------------------------------------
  36
  37 namespace wxGTKPrivate
  38 {
  39
  40 static GtkWidget *gs_container = NULL;
  41
  42 static GtkContainer* GetContainer()
  43 {
  44     if ( gs_container == NULL )
  45     {
  46         GtkWidget* window = gtk_window_new(GTK_WINDOW_POPUP);
  47         gs_container = gtk_fixed_new();
  48         gtk_container_add(GTK_CONTAINER(window), gs_container);
  49     }
  50     return GTK_CONTAINER(gs_container);
  51 }
  52
  53 GtkWidget *GetButtonWidget()
  54 {
  55     static GtkWidget *s_button = NULL;
  56
  57     if ( !s_button )
  58     {
  59         s_button = gtk_button_new();
  60         gtk_container_add(GetContainer(), s_button);
  61         gtk_widget_realize(s_button);
  62     }
  63
  64     return s_button;
  65 }
  66
  67 GtkWidget *GetCheckButtonWidget()
  68 {
  69     static GtkWidget *s_button = NULL;
  70
  71     if ( !s_button )
  72     {
  73         s_button = gtk_check_button_new();
  74         gtk_container_add(GetContainer(), s_button);
  75         gtk_widget_realize(s_button);
  76     }
  77
  78     return s_button;
  79 }
  80
  81 GtkWidget *GetEntryWidget()
  82 {
  83     static GtkWidget *s_entry = NULL;
  84
  85     if ( !s_entry )
  86     {
  87         s_entry = gtk_entry_new();
  88         gtk_container_add(GetContainer(), s_entry);
  89         gtk_widget_realize(s_entry);
  90     }
  91
  92     return s_entry;
  93 }
  94
  95 // This one just gets the button used by the column header. Although it's
  96 // still a gtk_button the themes will typically differentiate and draw them
  97 // differently if the button is in a treeview.
  98 GtkWidget *GetHeaderButtonWidget()
  99 {
 100     static GtkWidget *s_button = NULL;
 101
 102     if ( !s_button )
 103     {
 104         // Get the dummy tree widget, give it a column, and then use the
 105         // widget in the column header for the rendering code.
 106         GtkWidget* treewidget = GetTreeWidget();
 107         GtkTreeViewColumn *column = gtk_tree_view_column_new();
 108         gtk_tree_view_append_column(GTK_TREE_VIEW(treewidget), column);
 109         s_button = column->button;
 110     }
 111
 112     return s_button;
 113 }
 114
 115 GtkWidget* GetSplitterWidget()
 116 {
 117     static GtkWidget* widget;
 118
 119     if (widget == NULL)
 120     {
 121         widget = gtk_vpaned_new();
 122         gtk_container_add(GetContainer(), widget);
 123         gtk_widget_realize(widget);
 124     }
 125
 126     return widget;
 127 }
 128
 129 GtkWidget *GetTreeWidget()
 130 {
 131     static GtkWidget *s_tree = NULL;
 132
 133     if ( !s_tree )
 134     {
 135         s_tree = gtk_tree_view_new();
 136         gtk_container_add(GetContainer(), s_tree);
 137         gtk_widget_realize(s_tree);
 138     }
 139
 140     return s_tree;
 141 }
 142
 143
 144 // Module for destroying created widgets
 145 class WidgetsCleanupModule : public wxModule
 146 {
 147 public:
 148     virtual bool OnInit()
 149     {
 150         return true;
 151     }
 152
 153     virtual void OnExit()
 154     {
 155         if ( gs_container )
 156         {
 157             GtkWidget* parent = gtk_widget_get_parent(gs_container);
 158             gtk_widget_destroy(parent);
 159         }
 160     }
 161
 162     DECLARE_DYNAMIC_CLASS(WidgetsCleanupModule)
 163 };
 164
 165 IMPLEMENT_DYNAMIC_CLASS(WidgetsCleanupModule, wxModule)
 166
 167 static WidgetsCleanupModule gs_widgetsCleanupModule;
 168
 169 } // wxGTKPrivate namespace