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 #include "windowobservers.h"
23
24 #include <vector>
25 #include <gdk/gdkevents.h>
26 #include "generic/bitfield.h"
27
28 namespace
29 {
30 ModifierFlags g_modifier_state = c_modifierNone;
31 }
32
33 typedef std::vector<WindowObserver*> WindowObservers;
34
WindowObservers_OnModifierDown(WindowObservers & observers,ModifierFlags type)35 inline void WindowObservers_OnModifierDown( WindowObservers& observers, ModifierFlags type ){
36 g_modifier_state = bitfield_enable( g_modifier_state, type );
37 for ( WindowObservers::iterator i = observers.begin(); i != observers.end(); ++i )
38 {
39 ( *i )->onModifierDown( type );
40 }
41 }
42
WindowObservers_OnModifierUp(WindowObservers & observers,ModifierFlags type)43 inline void WindowObservers_OnModifierUp( WindowObservers& observers, ModifierFlags type ){
44 g_modifier_state = bitfield_disable( g_modifier_state, type );
45 for ( WindowObservers::iterator i = observers.begin(); i != observers.end(); ++i )
46 {
47 ( *i )->onModifierUp( type );
48 }
49 }
50
51 #include <gdk/gdkkeysyms.h>
52
selection_modifier_key_press(GtkWidget * widget,GdkEventKey * event,WindowObservers & observers)53 gboolean selection_modifier_key_press( GtkWidget* widget, GdkEventKey* event, WindowObservers& observers ){
54 switch ( event->keyval )
55 {
56 case GDK_Alt_L:
57 case GDK_Alt_R:
58 //globalOutputStream() << "Alt PRESSED\n";
59 WindowObservers_OnModifierDown( observers, c_modifierAlt );
60 break;
61 case GDK_Shift_L:
62 case GDK_Shift_R:
63 //globalOutputStream() << "Shift PRESSED\n";
64 WindowObservers_OnModifierDown( observers, c_modifierShift );
65 break;
66 case GDK_Control_L:
67 case GDK_Control_R:
68 //globalOutputStream() << "Control PRESSED\n";
69 WindowObservers_OnModifierDown( observers, c_modifierControl );
70 break;
71 }
72 return FALSE;
73 }
74
selection_modifier_key_release(GtkWidget * widget,GdkEventKey * event,WindowObservers & observers)75 gboolean selection_modifier_key_release( GtkWidget* widget, GdkEventKey* event, WindowObservers& observers ){
76 switch ( event->keyval )
77 {
78 case GDK_Alt_L:
79 case GDK_Alt_R:
80 //globalOutputStream() << "Alt RELEASED\n";
81 WindowObservers_OnModifierUp( observers, c_modifierAlt );
82 break;
83 case GDK_Shift_L:
84 case GDK_Shift_R:
85 //globalOutputStream() << "Shift RELEASED\n";
86 WindowObservers_OnModifierUp( observers, c_modifierShift );
87 break;
88 case GDK_Control_L:
89 case GDK_Control_R:
90 //globalOutputStream() << "Control RELEASED\n";
91 WindowObservers_OnModifierUp( observers, c_modifierControl );
92 break;
93 }
94 return FALSE;
95 }
96
WindowObservers_UpdateModifier(WindowObservers & observers,ModifierFlags modifiers,ModifierFlags modifier)97 void WindowObservers_UpdateModifier( WindowObservers& observers, ModifierFlags modifiers, ModifierFlags modifier ){
98 if ( !bitfield_enabled( g_modifier_state, modifier ) && bitfield_enabled( modifiers, modifier ) ) {
99 WindowObservers_OnModifierDown( observers, modifier );
100 }
101 if ( bitfield_enabled( g_modifier_state, modifier ) && !bitfield_enabled( modifiers, modifier ) ) {
102 WindowObservers_OnModifierUp( observers, modifier );
103 }
104 }
105
WindowObservers_UpdateModifiers(WindowObservers & observers,ModifierFlags modifiers)106 void WindowObservers_UpdateModifiers( WindowObservers& observers, ModifierFlags modifiers ){
107 WindowObservers_UpdateModifier( observers, modifiers, c_modifierAlt );
108 WindowObservers_UpdateModifier( observers, modifiers, c_modifierShift );
109 WindowObservers_UpdateModifier( observers, modifiers, c_modifierControl );
110 }
111
modifiers_button_press(GtkWidget * widget,GdkEventButton * event,WindowObservers * observers)112 gboolean modifiers_button_press( GtkWidget* widget, GdkEventButton* event, WindowObservers* observers ){
113 if ( event->type == GDK_BUTTON_PRESS ) {
114 WindowObservers_UpdateModifiers( *observers, modifiers_for_state( event->state ) );
115 }
116 return FALSE;
117 }
118
modifiers_button_release(GtkWidget * widget,GdkEventButton * event,WindowObservers * observers)119 gboolean modifiers_button_release( GtkWidget* widget, GdkEventButton* event, WindowObservers* observers ){
120 if ( event->type == GDK_BUTTON_RELEASE ) {
121 WindowObservers_UpdateModifiers( *observers, modifiers_for_state( event->state ) );
122 }
123 return FALSE;
124 }
125
modifiers_motion(GtkWidget * widget,GdkEventMotion * event,WindowObservers * observers)126 gboolean modifiers_motion( GtkWidget *widget, GdkEventMotion *event, WindowObservers* observers ){
127 WindowObservers_UpdateModifiers( *observers, modifiers_for_state( event->state ) );
128 return FALSE;
129 }
130
131
132 WindowObservers g_window_observers;
133
GlobalWindowObservers_updateModifiers(ModifierFlags modifiers)134 void GlobalWindowObservers_updateModifiers( ModifierFlags modifiers ){
135 WindowObservers_UpdateModifiers( g_window_observers, modifiers );
136 }
137
GlobalWindowObservers_add(WindowObserver * observer)138 void GlobalWindowObservers_add( WindowObserver* observer ){
139 g_window_observers.push_back( observer );
140 }
141
GlobalWindowObservers_connectTopLevel(GtkWindow * window)142 void GlobalWindowObservers_connectTopLevel( GtkWindow* window ){
143 g_signal_connect( G_OBJECT( window ), "key_press_event", G_CALLBACK( selection_modifier_key_press ), &g_window_observers );
144 g_signal_connect( G_OBJECT( window ), "key_release_event", G_CALLBACK( selection_modifier_key_release ), &g_window_observers );
145 }
146
GlobalWindowObservers_connectWidget(GtkWidget * widget)147 void GlobalWindowObservers_connectWidget( GtkWidget* widget ){
148 g_signal_connect( G_OBJECT( widget ), "button_press_event", G_CALLBACK( modifiers_button_press ), &g_window_observers );
149 g_signal_connect( G_OBJECT( widget ), "button_release_event", G_CALLBACK( modifiers_button_release ), &g_window_observers );
150 g_signal_connect( G_OBJECT( widget ), "motion_notify_event", G_CALLBACK( modifiers_motion ), &g_window_observers );
151 }
152