1 /*
2 Copyright (C) 2001-2006, William Joseph.
3 All Rights Reserved.
4
5 This file is part of GtkRadiant.
6
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #if !defined(INCLUDED_GTKUTIL_WIDGET_H)
23 #define INCLUDED_GTKUTIL_WIDGET_H
24
25 #include <list>
26 #include <gtk/gtkwidget.h>
27 #include "generic/callback.h"
28 #include "warnings.h"
29
widget_set_visible(GtkWidget * widget,bool shown)30 inline void widget_set_visible(GtkWidget* widget, bool shown)
31 {
32 if(shown)
33 {
34 gtk_widget_show(widget);
35 }
36 else
37 {
38 gtk_widget_hide(widget);
39 }
40 }
41
widget_is_visible(GtkWidget * widget)42 inline bool widget_is_visible(GtkWidget* widget)
43 {
44 return GTK_WIDGET_VISIBLE(widget) != FALSE;
45 }
46
widget_toggle_visible(GtkWidget * widget)47 inline void widget_toggle_visible(GtkWidget* widget)
48 {
49 widget_set_visible(widget, !widget_is_visible(widget));
50 }
51
52 class ToggleItem
53 {
54 BoolExportCallback m_exportCallback;
55 typedef std::list<BoolImportCallback> ImportCallbacks;
56 ImportCallbacks m_importCallbacks;
57 public:
ToggleItem(const BoolExportCallback & exportCallback)58 ToggleItem(const BoolExportCallback& exportCallback) : m_exportCallback(exportCallback)
59 {
60 }
61
update()62 void update()
63 {
64 for(ImportCallbacks::iterator i = m_importCallbacks.begin(); i != m_importCallbacks.end(); ++i)
65 {
66 m_exportCallback(*i);
67 }
68 }
69
addCallback(const BoolImportCallback & callback)70 void addCallback(const BoolImportCallback& callback)
71 {
72 m_importCallbacks.push_back(callback);
73 m_exportCallback(callback);
74 }
75 typedef MemberCaller1<ToggleItem, const BoolImportCallback&, &ToggleItem::addCallback> AddCallbackCaller;
76 };
77
78 class ToggleShown
79 {
80 bool m_shownDeferred;
81
82 ToggleShown(const ToggleShown& other); // NOT COPYABLE
83 ToggleShown& operator=(const ToggleShown& other); // NOT ASSIGNABLE
84
notify_visible(GtkWidget * widget,gpointer dummy,ToggleShown * self)85 static gboolean notify_visible(GtkWidget* widget, gpointer dummy, ToggleShown* self)
86 {
87 self->update();
88 return FALSE;
89 }
destroy(GtkWidget * widget,ToggleShown * self)90 static gboolean destroy(GtkWidget* widget, ToggleShown* self)
91 {
92 self->m_shownDeferred = GTK_WIDGET_VISIBLE(self->m_widget) != FALSE;
93 self->m_widget = 0;
94 return FALSE;
95 }
96 public:
97 GtkWidget* m_widget;
98 ToggleItem m_item;
99
ToggleShown(bool shown)100 ToggleShown(bool shown)
101 : m_shownDeferred(shown), m_widget(0), m_item(ActiveCaller(*this))
102 {
103 }
update()104 void update()
105 {
106 m_item.update();
107 }
active()108 bool active() const
109 {
110 if(m_widget == 0)
111 {
112 return m_shownDeferred;
113 }
114 else
115 {
116 return GTK_WIDGET_VISIBLE(m_widget) != FALSE;
117 }
118 }
exportActive(const BoolImportCallback & importCallback)119 void exportActive(const BoolImportCallback& importCallback)
120 {
121 importCallback(active());
122 }
123 typedef MemberCaller1<ToggleShown, const BoolImportCallback&, &ToggleShown::exportActive> ActiveCaller;
set(bool shown)124 void set(bool shown)
125 {
126 if(m_widget == 0)
127 {
128 m_shownDeferred = shown;
129 }
130 else
131 {
132 widget_set_visible(m_widget, shown);
133 }
134 }
toggle()135 void toggle()
136 {
137 widget_toggle_visible(m_widget);
138 }
139 typedef MemberCaller<ToggleShown, &ToggleShown::toggle> ToggleCaller;
connect(GtkWidget * widget)140 void connect(GtkWidget* widget)
141 {
142 m_widget = widget;
143 widget_set_visible(m_widget, m_shownDeferred);
144 g_signal_connect(G_OBJECT(m_widget), "notify::visible", G_CALLBACK(notify_visible), this);
145 g_signal_connect(G_OBJECT(m_widget), "destroy", G_CALLBACK(destroy), this);
146 update();
147 }
148 };
149
150
widget_queue_draw(GtkWidget & widget)151 inline void widget_queue_draw(GtkWidget& widget)
152 {
153 gtk_widget_queue_draw(&widget);
154 }
155 typedef ReferenceCaller<GtkWidget, widget_queue_draw> WidgetQueueDrawCaller;
156
157
widget_make_default(GtkWidget * widget)158 inline void widget_make_default(GtkWidget* widget)
159 {
160 GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_DEFAULT);
161 gtk_widget_grab_default(widget);
162 }
163
164
165 #endif
166