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"
28 #include "aweather-plugin.h"
34 G_DEFINE_TYPE(AWeatherGui, aweather_gui, GTK_TYPE_WINDOW);
35 static void aweather_gui_init(AWeatherGui *gui)
38 g_debug("AWeatherGui: init");
40 static GObject *aweather_gui_constructor(GType gtype, guint n_properties,
41 GObjectConstructParam *properties)
43 g_debug("aweather_gui: constructor");
44 GObjectClass *parent_class = G_OBJECT_CLASS(aweather_gui_parent_class);
45 return parent_class->constructor(gtype, n_properties, properties);
47 static void aweather_gui_dispose(GObject *gobject)
49 g_debug("AWeatherGui: dispose");
50 AWeatherGui *gui = AWEATHER_GUI(gobject);
52 g_object_unref(gui->view);
56 /* Reparent to avoid double unrefs */
57 GtkWidget *body = aweather_gui_get_widget(gui, "body");
58 GtkWidget *window = aweather_gui_get_widget(gui, "window");
59 gtk_widget_reparent(body, window);
60 g_object_unref(gui->builder);
64 g_list_foreach(gui->plugins, (GFunc)g_object_unref, NULL);
65 g_list_free(gui->plugins);
68 //for (GList *cur = gui->plugins; cur; cur = cur->next)
69 // g_object_unref(cur->data);
70 G_OBJECT_CLASS(aweather_gui_parent_class)->dispose(gobject);
72 static void aweather_gui_finalize(GObject *gobject)
74 g_debug("AWeatherGui: finalize");
75 G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
79 static void aweather_gui_class_init(AWeatherGuiClass *klass)
81 g_debug("AWeatherGui: class_init");
82 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
83 gobject_class->constructor = aweather_gui_constructor;
84 gobject_class->dispose = aweather_gui_dispose;
85 gobject_class->finalize = aweather_gui_finalize;
91 void on_quit(GtkMenuItem *menu, AWeatherGui *gui)
93 gtk_widget_destroy(GTK_WIDGET(gui));
95 gboolean on_drawing_button_press(GtkWidget *widget, GdkEventButton *event, AWeatherGui *gui)
97 g_debug("AWeatherGui: on_drawing_button_press - Grabbing focus");
98 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
99 gtk_widget_grab_focus(drawing);
102 gboolean on_drawing_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
104 g_debug("AWeatherGui: on_drawing_key_press - key=%x, state=%x",
105 event->keyval, event->state);
106 AWeatherView *view = aweather_gui_get_view(gui);
108 aweather_view_get_location(view, &x, &y, &z);
109 guint kv = event->keyval;
110 if (kv == GDK_Right || kv == GDK_l) aweather_view_pan(view, z/10, 0, 0);
111 else if (kv == GDK_Left || kv == GDK_h) aweather_view_pan(view, -z/10, 0, 0);
112 else if (kv == GDK_Up || kv == GDK_k) aweather_view_pan(view, 0, z/10, 0);
113 else if (kv == GDK_Down || kv == GDK_j) aweather_view_pan(view, 0, -z/10, 0);
114 else if (kv == GDK_minus || kv == GDK_o) aweather_view_zoom(view, 10./9);
115 else if (kv == GDK_plus || kv == GDK_i) aweather_view_zoom(view, 9./10);
119 gboolean on_gui_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
121 g_debug("AWeatherGui: on_gui_key_press - key=%x, state=%x",
122 event->keyval, event->state);
123 AWeatherView *view = aweather_gui_get_view(gui);
124 if (event->keyval == GDK_q)
125 gtk_widget_destroy(GTK_WIDGET(gui));
126 else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
127 aweather_view_refresh(view);
128 else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
129 GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
130 gint num_tabs = gtk_notebook_get_n_pages(tabs);
131 gint cur_tab = gtk_notebook_get_current_page(tabs);
132 if (event->state & GDK_SHIFT_MASK)
133 gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
135 gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
140 void on_refresh(GtkToolButton *button, AWeatherGui *gui)
142 AWeatherView *view = aweather_gui_get_view(gui);
143 aweather_view_refresh(view);
146 void on_zoomin(GtkToolButton *button, AWeatherGui *gui)
148 AWeatherView *view = aweather_gui_get_view(gui);
149 aweather_view_zoom(view, 3./4);
152 void on_zoomout(GtkToolButton *button, AWeatherGui *gui)
154 AWeatherView *view = aweather_gui_get_view(gui);
155 aweather_view_zoom(view, 4./3);
158 void on_time_changed(GtkTreeView *view, GtkTreePath *path,
159 GtkTreeViewColumn *column, AWeatherGui *gui)
163 GtkTreeModel *model = gtk_tree_view_get_model(view);
164 gtk_tree_model_get_iter(model, &iter, path);
165 gtk_tree_model_get(model, &iter, 0, &time, -1);
166 AWeatherView *aview = aweather_gui_get_view(gui);
167 aweather_view_set_time(aview, time);
171 void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
175 GtkTreeModel *model = gtk_combo_box_get_model(combo);
176 gtk_combo_box_get_active_iter(combo, &iter);
177 gtk_tree_model_get(model, &iter, 1, &site, -1);
178 AWeatherView *view = aweather_gui_get_view(gui);
179 aweather_view_set_site(view, site);
183 gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
185 g_debug("AWeatherGui: on_map");
186 AWeatherView *view = aweather_gui_get_view(gui);
190 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
191 glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
193 /* Tessellation, "finding intersecting triangles" */
194 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
195 /* http://www.opengl.org/wiki/Alpha_Blending */
196 glAlphaFunc(GL_GREATER,0.1);
197 glEnable(GL_ALPHA_TEST);
201 glDepthFunc(GL_LEQUAL);
202 glEnable(GL_DEPTH_TEST);
204 aweather_gui_gl_end(gui);
208 gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
210 g_debug("AWeatherGui: on_confiure");
211 aweather_gui_gl_begin(gui);
214 AWeatherView *view = aweather_gui_get_view(gui);
215 aweather_view_get_location(view, &x, &y, &z);
217 /* Window is at 500 m from camera */
218 double width = da->allocation.width;
219 double height = da->allocation.height;
221 glViewport(0, 0, width, height);
224 glMatrixMode(GL_PROJECTION);
226 double rad = atan((height/2)/500);
227 double deg = (rad*180)/M_PI;
229 gluPerspective(deg*2, width/height, -z-20, -z+20);
230 //gluPerspective(deg*2, width/height, 1, 500*1000);
232 aweather_gui_gl_end(gui);
236 gboolean on_expose(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
238 g_debug("AWeatherGui: on_expose - begin");
239 aweather_gui_gl_begin(gui);
242 AWeatherView *view = aweather_gui_get_view(gui);
243 aweather_view_get_location(view, &x, &y, &z);
245 glMatrixMode(GL_MODELVIEW);
247 glTranslatef(x, y, z);
249 //glRotatef(-45, 1, 0, 0);
252 for (GList *cur = gui->plugins; cur; cur = cur->next) {
253 AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data);
254 aweather_plugin_expose(plugin);
257 aweather_gui_gl_end(gui);
258 aweather_gui_gl_flush(gui);
259 g_debug("AWeatherGui: on_expose - end\n");
263 void on_about(GtkMenuItem *item, AWeatherGui *gui)
265 // TODO: use gtk_widget_hide_on_delete()
266 GError *error = NULL;
267 GtkBuilder *builder = gtk_builder_new();
268 if (!gtk_builder_add_from_file(builder, DATADIR "/aweather/about.xml", &error))
269 g_error("Failed to create gtk builder: %s", error->message);
270 gtk_builder_connect_signals(builder, NULL);
271 GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
272 gtk_window_set_transient_for(GTK_WINDOW(window),
273 GTK_WINDOW(aweather_gui_get_widget(gui, "window")));
274 gtk_widget_show_all(window);
275 g_object_unref(builder);
278 void on_location_changed(AWeatherView *view,
279 gdouble x, gdouble y, gdouble z, AWeatherGui *gui)
281 /* Reset clipping area and redraw */
282 GtkWidget *da = aweather_gui_get_widget(gui, "drawing");
283 on_configure(da, NULL, gui);
284 aweather_gui_gl_redraw(gui);
287 /* TODO: replace the code in these with `gtk_tree_model_find' utility */
288 static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
290 g_debug("AWeatherGui: update_time_widget");
291 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
292 GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
293 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
296 gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
297 gtk_tree_model_get(model, &iter, 0, &text, -1);
298 if (g_str_equal(text, time)) {
299 GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
300 g_signal_handlers_block_by_func(tview,
301 G_CALLBACK(on_site_changed), gui);
302 gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
303 g_signal_handlers_unblock_by_func(tview,
304 G_CALLBACK(on_site_changed), gui);
305 gtk_tree_path_free(path);
312 static void update_site_widget(AWeatherView *view, char *site, AWeatherGui *gui)
314 g_debug("AWeatherGui: updat_site_widget - site=%s", site);
315 GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
316 GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
317 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
319 gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
320 for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
322 gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
324 gtk_tree_model_get(model, &iter2, 1, &text, -1);
325 if (g_str_equal(text, site)) {
326 g_signal_handlers_block_by_func(combo,
327 G_CALLBACK(on_site_changed), gui);
328 gtk_combo_box_set_active_iter(combo, &iter2);
329 g_signal_handlers_unblock_by_func(combo,
330 G_CALLBACK(on_site_changed), gui);
342 static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
343 GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
345 gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
346 g_object_set(cell, "sensitive", sensitive, NULL);
349 static void site_setup(AWeatherGui *gui)
351 GtkTreeIter state, city;
352 GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
353 for (int i = 0; cities[i].label; i++) {
354 if (cities[i].type == LOCATION_STATE) {
355 gtk_tree_store_append(store, &state, NULL);
356 gtk_tree_store_set (store, &state, 0, cities[i].label,
357 1, cities[i].code, -1);
359 gtk_tree_store_append(store, &city, &state);
360 gtk_tree_store_set (store, &city, 0, cities[i].label,
361 1, cities[i].code, -1);
365 GtkWidget *combo = aweather_gui_get_widget(gui, "site");
366 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
367 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
368 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
369 gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
370 gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
371 combo_sensitive, NULL, NULL);
372 g_object_unref(renderer);
373 g_object_unref(store);
375 AWeatherView *aview = aweather_gui_get_view(gui);
376 g_signal_connect(aview, "site-changed", G_CALLBACK(update_site_widget), gui);
379 static void time_setup(AWeatherGui *gui)
381 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
382 GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
383 gtk_tree_view_set_model(tview, store);
385 GtkCellRenderer *rend = gtk_cell_renderer_text_new();
386 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
387 "Time", rend, "text", 0, NULL);
388 gtk_tree_view_append_column(tview, col);
390 AWeatherView *aview = aweather_gui_get_view(gui);
391 g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
394 static void opengl_setup(AWeatherGui *gui)
396 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
398 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
399 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
400 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
402 g_error("Failed to create glconfig");
403 if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
404 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
405 g_error("GL lacks required capabilities");
407 /* Set up OpenGL Stuff, glade doesn't like doing these */
408 g_signal_connect(drawing, "map-event", G_CALLBACK(on_map), gui);
409 g_signal_connect(drawing, "configure-event", G_CALLBACK(on_configure), gui);
410 g_signal_connect(drawing, "expose-event", G_CALLBACK(on_expose), gui);
418 AWeatherGui *aweather_gui_new()
420 g_debug("AWeatherGui: new");
421 GError *error = NULL;
423 AWeatherGui *self = g_object_new(AWEATHER_TYPE_GUI, NULL);
424 self->view = aweather_view_new();
425 self->builder = gtk_builder_new();
427 if (!gtk_builder_add_from_file(self->builder, DATADIR "/aweather/main.xml", &error))
428 g_error("Failed to create gtk builder: %s", error->message);
429 gtk_builder_connect_signals(self->builder, self);
430 g_signal_connect(self, "key-press-event", G_CALLBACK(on_gui_key_press), self);
431 gtk_widget_reparent(aweather_gui_get_widget(self, "body"), GTK_WIDGET(self));
433 /* Load components */
434 aweather_view_set_location(self->view, 0, 0, -300*1000);
435 g_signal_connect(self->view, "location-changed", G_CALLBACK(on_location_changed), self);
441 AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
443 g_assert(AWEATHER_IS_GUI(gui));
446 GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
448 g_debug("AWeatherGui: get_builder");
449 g_assert(AWEATHER_IS_GUI(gui));
452 GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
454 g_debug("AWeatherGui: get_widget - name=%s", name);
455 g_assert(AWEATHER_IS_GUI(gui));
456 GObject *widget = gtk_builder_get_object(gui->builder, name);
457 if (!GTK_IS_WIDGET(widget))
458 g_error("Failed to get widget `%s'", name);
459 return GTK_WIDGET(widget);
461 void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin)
463 g_debug("AWeatherGui: register_plugin");
464 gui->plugins = g_list_append(gui->plugins, plugin);
466 void aweather_gui_gl_redraw(AWeatherGui *gui)
468 g_debug("AWeatherGui: gl_redraw");
469 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
470 gtk_widget_queue_draw(drawing);
472 void aweather_gui_gl_begin(AWeatherGui *gui)
474 g_assert(AWEATHER_IS_GUI(gui));
476 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
477 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
478 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
480 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
481 g_assert_not_reached();
483 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
485 void aweather_gui_gl_end(AWeatherGui *gui)
487 g_assert(AWEATHER_IS_GUI(gui));
488 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
489 gdk_gl_drawable_gl_end(gldrawable);
491 void aweather_gui_gl_flush(AWeatherGui *gui)
493 g_assert(AWEATHER_IS_GUI(gui));
494 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
495 if (gdk_gl_drawable_is_double_buffered(gldrawable))
496 gdk_gl_drawable_swap_buffers(gldrawable);
499 gdk_gl_drawable_gl_end(gldrawable);