2 * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include <gtk/gtkgl.h>
21 #include <gdk/gdkkeysyms.h>
26 #include "aweather-gui.h"
27 #include "aweather-view.h"
33 gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
35 g_message("key_press: key=%x, state=%x", event->keyval, event->state);
36 AWeatherView *view = aweather_gui_get_view(gui);
37 if (event->keyval == GDK_q)
39 else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
40 aweather_view_refresh(view);
41 else if (event->keyval == GDK_plus)
42 aweather_view_zoomin(view);
43 else if (event->keyval == GDK_minus)
44 aweather_view_zoomout(view);
45 else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
46 GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
47 gint num_tabs = gtk_notebook_get_n_pages(tabs);
48 gint cur_tab = gtk_notebook_get_current_page(tabs);
49 if (event->state & GDK_SHIFT_MASK)
50 gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
52 gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
57 void on_refresh(GtkToolButton *button, AWeatherGui *gui)
59 AWeatherView *view = aweather_gui_get_view(gui);
60 aweather_view_refresh(view);
63 void on_zoomin(GtkToolButton *button, AWeatherGui *gui)
65 AWeatherView *view = aweather_gui_get_view(gui);
66 aweather_view_zoomin(view);
69 void on_zoomout(GtkToolButton *button, AWeatherGui *gui)
71 AWeatherView *view = aweather_gui_get_view(gui);
72 aweather_view_zoomout(view);
75 void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
79 GtkTreeModel *model = gtk_combo_box_get_model(combo);
80 gtk_combo_box_get_active_iter(combo, &iter);
81 gtk_tree_model_get(model, &iter, 1, &site, -1);
82 AWeatherView *view = aweather_gui_get_view(gui);
83 aweather_view_set_location(view, site);
87 void on_time_changed(GtkTreeView *view, GtkTreePath *path,
88 GtkTreeViewColumn *column, AWeatherGui *gui)
92 GtkTreeModel *model = gtk_tree_view_get_model(view);
93 gtk_tree_model_get_iter(model, &iter, path);
94 gtk_tree_model_get(model, &iter, 0, &time, -1);
95 AWeatherView *aview = aweather_gui_get_view(gui);
96 aweather_view_set_time(aview, time);
100 gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
103 AWeatherView *view = aweather_gui_get_view(gui);
104 aweather_view_set_location(view, "IND");
108 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
109 glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
111 /* Tessellation, "finding intersecting triangles" */
112 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
113 /* http://www.opengl.org/wiki/Alpha_Blending */
114 glAlphaFunc(GL_GREATER,0.1);
115 glEnable(GL_ALPHA_TEST);
119 glDepthFunc(GL_LEQUAL);
120 glEnable(GL_DEPTH_TEST);
122 aweather_gui_gl_end(gui);
126 gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
128 //g_message("on_confiure");
129 aweather_gui_gl_begin(gui);
131 double width = da->allocation.width;
132 double height = da->allocation.height;
133 double dist = 500*1000; // 500 km
134 double cam = 300*1000; // 500 km
136 glViewport(0, 0, width, height);
139 glMatrixMode(GL_PROJECTION);
141 double rad = atan(height/2*1000.0/dist); // 1px = 1000 meters
142 double deg = (rad*180)/M_PI;
143 gluPerspective(deg*2, width/height, cam-20, cam+20);
145 /* Camera position? */
146 glMatrixMode(GL_MODELVIEW);
148 glTranslatef(0.0, 0.0, -cam);
149 //glRotatef(-45, 1, 0, 0);
151 aweather_gui_gl_end(gui);
155 gboolean on_expose_begin(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
157 g_message("aweather:espose_begin");
158 aweather_gui_gl_begin(gui);
161 gboolean on_expose_end(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
163 g_message("aweather:espose_end\n");
164 aweather_gui_gl_end(gui);
165 aweather_gui_gl_flush(gui);
169 /* TODO: replace the code in these with `gtk_tree_model_find' utility */
170 static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
172 g_message("updating time widget");
173 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
174 GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
175 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
178 gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
179 gtk_tree_model_get(model, &iter, 0, &text, -1);
180 if (g_str_equal(text, time)) {
181 GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
182 g_signal_handlers_block_by_func(tview,
183 G_CALLBACK(on_site_changed), gui);
184 gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
185 g_signal_handlers_unblock_by_func(tview,
186 G_CALLBACK(on_site_changed), gui);
187 gtk_tree_path_free(path);
194 static void update_location_widget(AWeatherView *view, char *location, AWeatherGui *gui)
196 g_message("updating location widget to %s", location);
197 GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
198 GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
199 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
201 gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
202 for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
204 gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
206 gtk_tree_model_get(model, &iter2, 1, &text, -1);
207 if (g_str_equal(text, location)) {
208 g_signal_handlers_block_by_func(combo,
209 G_CALLBACK(on_site_changed), gui);
210 gtk_combo_box_set_active_iter(combo, &iter2);
211 g_signal_handlers_unblock_by_func(combo,
212 G_CALLBACK(on_site_changed), gui);
224 static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
225 GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
227 gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
228 g_object_set(cell, "sensitive", sensitive, NULL);
231 static void site_setup(AWeatherGui *gui)
233 GtkTreeIter state, city;
234 GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
235 for (int i = 0; cities[i].label; i++) {
236 if (cities[i].type == LOCATION_STATE) {
237 gtk_tree_store_append(store, &state, NULL);
238 gtk_tree_store_set (store, &state, 0, cities[i].label,
239 1, cities[i].code, -1);
241 gtk_tree_store_append(store, &city, &state);
242 gtk_tree_store_set (store, &city, 0, cities[i].label,
243 1, cities[i].code, -1);
247 GtkWidget *combo = aweather_gui_get_widget(gui, "site");
248 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
249 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
250 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
251 gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
252 gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
253 combo_sensitive, NULL, NULL);
254 g_object_unref(renderer);
255 g_object_unref(store);
257 AWeatherView *aview = aweather_gui_get_view(gui);
258 g_signal_connect(aview, "location-changed", G_CALLBACK(update_location_widget), gui);
261 static void time_setup(AWeatherGui *gui)
263 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
264 GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
265 gtk_tree_view_set_model(tview, store);
267 GtkCellRenderer *rend = gtk_cell_renderer_text_new();
268 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
269 "Time", rend, "text", 0, NULL);
270 gtk_tree_view_append_column(tview, col);
272 AWeatherView *aview = aweather_gui_get_view(gui);
273 g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
276 static void opengl_setup(AWeatherGui *gui)
278 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
280 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
281 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
282 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
284 g_error("Failed to create glconfig");
285 if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
286 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
287 g_error("GL lacks required capabilities");
289 /* Set up OpenGL Stuff */
290 g_signal_connect (drawing, "map-event", G_CALLBACK(on_map), gui);
291 g_signal_connect (drawing, "configure-event", G_CALLBACK(on_configure), gui);
292 g_signal_connect (drawing, "expose-event", G_CALLBACK(on_expose_begin), gui);
293 g_signal_connect_after(drawing, "expose-event", G_CALLBACK(on_expose_end), gui);
300 G_DEFINE_TYPE(AWeatherGui, aweather_gui, G_TYPE_OBJECT);
302 /* Constructor / destructors */
303 static void aweather_gui_init(AWeatherGui *gui)
305 //g_message("aweather_gui_init");
308 static GObject *aweather_gui_constructor(GType gtype, guint n_properties,
309 GObjectConstructParam *properties)
311 //g_message("aweather_gui_constructor");
312 GObjectClass *parent_class = G_OBJECT_CLASS(aweather_gui_parent_class);
313 return parent_class->constructor(gtype, n_properties, properties);
316 static void aweather_gui_dispose (GObject *gobject)
318 //g_message("aweather_gui_dispose");
319 AWeatherGui *gui = AWEATHER_GUI(gobject);
320 g_object_unref(gui->view );
321 g_object_unref(gui->builder);
322 g_object_unref(gui->window );
323 g_object_unref(gui->tabs );
324 g_object_unref(gui->drawing);
325 G_OBJECT_CLASS(aweather_gui_parent_class)->dispose(gobject);
328 static void aweather_gui_finalize(GObject *gobject)
330 //g_message("aweather_gui_finalize");
331 G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
334 static void aweather_gui_class_init(AWeatherGuiClass *klass)
336 //g_message("aweather_gui_class_init");
337 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
338 gobject_class->constructor = aweather_gui_constructor;
339 gobject_class->dispose = aweather_gui_dispose;
340 gobject_class->finalize = aweather_gui_finalize;
344 AWeatherGui *aweather_gui_new()
346 //g_message("aweather_gui_new");
347 GError *error = NULL;
349 AWeatherGui *gui = g_object_new(AWEATHER_TYPE_GUI, NULL);
351 gui->builder = gtk_builder_new();
352 if (!gtk_builder_add_from_file(gui->builder, DATADIR "/aweather/aweather.xml", &error))
353 g_error("Failed to create gtk builder: %s", error->message);
354 gui->view = aweather_view_new();
355 gui->window = GTK_WINDOW (gtk_builder_get_object(gui->builder, "window"));
356 gui->tabs = GTK_NOTEBOOK (gtk_builder_get_object(gui->builder, "tabs"));
357 gui->drawing = GTK_DRAWING_AREA(gtk_builder_get_object(gui->builder, "drawing"));
358 gtk_builder_connect_signals(gui->builder, gui);
360 /* Load components */
366 AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
368 g_assert(AWEATHER_IS_GUI(gui));
371 GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
373 g_assert(AWEATHER_IS_GUI(gui));
376 GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
378 g_assert(AWEATHER_IS_GUI(gui));
379 GObject *widget = gtk_builder_get_object(gui->builder, name);
380 g_assert(GTK_IS_WIDGET(widget));
381 return GTK_WIDGET(widget);
383 void aweather_gui_gl_begin(AWeatherGui *gui)
385 g_assert(AWEATHER_IS_GUI(gui));
387 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
388 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
389 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
391 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
392 g_assert_not_reached();
394 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
396 void aweather_gui_gl_end(AWeatherGui *gui)
398 g_assert(AWEATHER_IS_GUI(gui));
399 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
400 gdk_gl_drawable_gl_end(gldrawable);
402 void aweather_gui_gl_flush(AWeatherGui *gui)
404 g_assert(AWEATHER_IS_GUI(gui));
405 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
406 if (gdk_gl_drawable_is_double_buffered(gldrawable))
407 gdk_gl_drawable_swap_buffers(gldrawable);
410 gdk_gl_drawable_gl_end(gldrawable);
412 //void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin);