2 This file is part of fxwt, the window system toolkit of 3dengfx.
4 Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 /* main fxwt event handling and system abstraction.
23 * Author: John Tsiombikas 2004
26 #include "3dengfx_config.h"
28 #if GFX_LIBRARY == GTK
30 #include "gfx_library.h"
32 static GdkGLContext *gl_context;
33 static GdkGLDrawable *gl_drawable;
35 Vector2 fxwt::get_mouse_pos_normalized() {
36 //TODO: implement this
40 void fxwt::set_window_title(const char *title) {
41 // TODO: implement this
44 void fxwt::swap_buffers() {
45 gdk_gl_drawable_swap_buffers(gl_drawable);
48 int fxwt::main_loop() {
54 static void gtk_idle_add(GtkWidget *widget);
55 static void gtk_idle_remove(GtkWidget *widget);
56 static gboolean gtk_key(GtkWidget *widget, GdkEventKey *event, gpointer data);
57 static gboolean gtk_idle(GtkWidget *widget);
58 static gboolean gtk_visible(GtkWidget *widget, GdkEventVisibility *event, gpointer data);
59 static gboolean gtk_map(GtkWidget *widget, GdkEventAny *event, gpointer data);
60 static gboolean gtk_unmap(GtkWidget *widget, GdkEventAny *event, gpointer data);
61 static gboolean gtk_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data);
62 static gboolean gtk_realize(GtkWidget *widget, gpointer data);
63 //static gboolean gtk_reshape(GtkWidget *widget, GdkEventConfigure *event, gpointer data);
66 static unsigned int idle_id;
68 void set_gtk_callbacks(GtkWidget *widget) {
69 gtk_widget_add_events(widget, GDK_VISIBILITY_NOTIFY_MASK | GDK_KEY_PRESS_MASK);
71 g_signal_connect_after(g_object(widget), "realize", g_callback(GtkRealize), 0);
72 //g_signal_connect(g_object(widget), "configure_event", g_callback(GtkReshape), 0);
73 g_signal_connect(g_object(widget), "expose_event", g_callback(GtkExpose), 0);
74 g_signal_connect(g_object(widget), "map_event", g_callback(GtkMap), 0);
75 g_signal_connect(g_object(widget), "unmap_event", g_callback(GtkUnmap), 0);
76 g_signal_connect(g_object(widget), "visibility_notify_event", g_callback(GtkVisible), 0);
78 g_signal_connect(g_object(widget), "key_press_event", g_callback(GtkKey), 0);
81 static gboolean gtk_key(GtkWidget *widget, GdkEventKey *event, gpointer data) {
82 std::cout << __func__ << std::endl;
83 if(event->type == GDK_KEY_PRESS) {
84 list<void (*)(int)>::iterator iter = keyb_handlers.begin();
85 while(iter != keyb_handlers.end()) {
86 (*iter++)(event->keyval);
92 static void gtk_idle_add(GtkWidget *widget) {
93 if(!idle_id && !idle_handlers.empty()) {
94 idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW, (GSourceFunc)GtkIdle, widget, 0);
98 static void gtk_idle_remove(GtkWidget *widget) {
100 g_source_remove(idle_id);
105 static gboolean gtk_visible(GtkWidget *widget, GdkEventVisibility *event, gpointer data) {
106 if(event->state == GDK_VISIBILITY_FULLY_OBSCURED) {
107 gtk_idle_remove(widget);
109 gtk_idle_add(widget);
114 static gboolean gtk_map(GtkWidget *widget, GdkEventAny *event, gpointer data) {
115 gtk_idle_add(widget);
119 static gboolean gtk_unmap(GtkWidget *widget, GdkEventAny *event, gpointer data) {
120 gtk_idle_remove(widget);
124 static gboolean gtk_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data) {
125 gdk_gl_drawable_gl_begin(gl_drawable, gl_context);
131 list<void (*)()>::iterator iter = disp_handlers.begin();
132 while(iter != disp_handlers.end()) {
136 gdk_gl_drawable_gl_end(gl_drawable);
141 static gboolean gtk_idle(GtkWidget *widget) {
142 if(!realized) return TRUE;
144 gdk_window_invalidate_rect(widget->window, &widget->allocation, FALSE);
145 gdk_window_process_updates(widget->window, FALSE);
150 static gboolean gtk_realize(GtkWidget *widget, gpointer data) {
151 gl_context = gtk_widget_get_gl_context(widget);
152 gl_drawable = gtk_widget_get_gl_drawable(widget);
154 if(!gdk_gl_drawable_gl_begin(gl_drawable, gl_context)) {
155 error("%s: this shouldn't happen", __func__);
163 gdk_gl_drawable_gl_end(gl_drawable);
170 static gboolean gtk_reshape(GtkWidget *widget, GdkEventConfigure *event, gpointer data) {
171 GLfloat h = (GLfloat) (widget->allocation.height) / (GLfloat) (widget->allocation.width);
173 /*** OpenGL BEGIN ***/
174 if(!gdk_gl_drawable_gl_begin(gldrawable, glcontext)) {
178 glViewport (0, 0, widget->allocation.width, widget->allocation.height);
179 glMatrixMode (GL_PROJECTION);
181 glFrustum (-1.0, 1.0, -h, h, 5.0, 60.0);
182 glMatrixMode (GL_MODELVIEW);
184 glTranslatef (0.0, 0.0, -40.0);
186 gdk_gl_drawable_gl_end (gldrawable);
192 #endif // GFX_LIBRARY == GTK