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);
51 g_object_unref(gui->view );
52 g_object_unref(gui->builder);
53 G_OBJECT_CLASS(aweather_gui_parent_class)->dispose(gobject);
55 static void aweather_gui_finalize(GObject *gobject)
57 g_debug("AWeatherGui: finalize");
58 G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
60 static void aweather_gui_class_init(AWeatherGuiClass *klass)
62 g_debug("AWeatherGui: class_init");
63 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
64 gobject_class->constructor = aweather_gui_constructor;
65 gobject_class->dispose = aweather_gui_dispose;
66 gobject_class->finalize = aweather_gui_finalize;
72 gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
74 g_debug("AWeatherGui: on_key_press - key=%x, state=%x", event->keyval, event->state);
75 AWeatherView *view = aweather_gui_get_view(gui);
77 aweather_view_get_location(view, &x, &y, &z);
78 if (event->keyval == GDK_q)
80 else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
81 aweather_view_refresh(view);
82 else if (event->keyval == GDK_Right) aweather_view_pan(view, z/10, 0, 0);
83 else if (event->keyval == GDK_Left) aweather_view_pan(view, -z/10, 0, 0);
84 else if (event->keyval == GDK_Up) aweather_view_pan(view, 0, z/10, 0);
85 else if (event->keyval == GDK_Down) aweather_view_pan(view, 0, -z/10, 0);
86 else if (event->keyval == GDK_minus) aweather_view_zoom(view, 10./9);
87 else if (event->keyval == GDK_plus) aweather_view_zoom(view, 9./10);
88 else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
89 GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
90 gint num_tabs = gtk_notebook_get_n_pages(tabs);
91 gint cur_tab = gtk_notebook_get_current_page(tabs);
92 if (event->state & GDK_SHIFT_MASK)
93 gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
95 gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
100 void on_refresh(GtkToolButton *button, AWeatherGui *gui)
102 AWeatherView *view = aweather_gui_get_view(gui);
103 aweather_view_refresh(view);
106 void on_zoomin(GtkToolButton *button, AWeatherGui *gui)
108 AWeatherView *view = aweather_gui_get_view(gui);
109 aweather_view_zoom(view, 3./4);
112 void on_zoomout(GtkToolButton *button, AWeatherGui *gui)
114 AWeatherView *view = aweather_gui_get_view(gui);
115 aweather_view_zoom(view, 4./3);
118 void on_time_changed(GtkTreeView *view, GtkTreePath *path,
119 GtkTreeViewColumn *column, AWeatherGui *gui)
123 GtkTreeModel *model = gtk_tree_view_get_model(view);
124 gtk_tree_model_get_iter(model, &iter, path);
125 gtk_tree_model_get(model, &iter, 0, &time, -1);
126 AWeatherView *aview = aweather_gui_get_view(gui);
127 aweather_view_set_time(aview, time);
131 void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
135 GtkTreeModel *model = gtk_combo_box_get_model(combo);
136 gtk_combo_box_get_active_iter(combo, &iter);
137 gtk_tree_model_get(model, &iter, 1, &site, -1);
138 AWeatherView *view = aweather_gui_get_view(gui);
139 aweather_view_set_site(view, site);
143 gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
145 g_debug("AWeatherGui: on_map");
146 AWeatherView *view = aweather_gui_get_view(gui);
150 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
151 glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
153 /* Tessellation, "finding intersecting triangles" */
154 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
155 /* http://www.opengl.org/wiki/Alpha_Blending */
156 glAlphaFunc(GL_GREATER,0.1);
157 glEnable(GL_ALPHA_TEST);
161 glDepthFunc(GL_LEQUAL);
162 glEnable(GL_DEPTH_TEST);
164 aweather_gui_gl_end(gui);
168 gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
170 g_debug("AWeatherGui: on_confiure");
171 aweather_gui_gl_begin(gui);
174 AWeatherView *view = aweather_gui_get_view(gui);
175 aweather_view_get_location(view, &x, &y, &z);
177 /* Window is at 500 m from camera */
178 double width = da->allocation.width;
179 double height = da->allocation.height;
181 glViewport(0, 0, width, height);
184 glMatrixMode(GL_PROJECTION);
186 double rad = atan((height/2)/500);
187 double deg = (rad*180)/M_PI;
189 gluPerspective(deg*2, width/height, -z-20, -z+20);
190 //gluPerspective(deg*2, width/height, 1, 500*1000);
192 aweather_gui_gl_end(gui);
196 gboolean on_expose(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
198 g_debug("AWeatherGui: on_expose - begin");
199 aweather_gui_gl_begin(gui);
202 AWeatherView *view = aweather_gui_get_view(gui);
203 aweather_view_get_location(view, &x, &y, &z);
205 glMatrixMode(GL_MODELVIEW);
207 glTranslatef(x, y, z);
209 //glRotatef(-45, 1, 0, 0);
212 for (GList *cur = gui->plugins; cur; cur = cur->next) {
213 AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data);
214 aweather_plugin_expose(plugin);
217 aweather_gui_gl_end(gui);
218 aweather_gui_gl_flush(gui);
219 g_debug("AWeatherGui: on_expose - end\n");
223 void on_about(GtkMenuItem *item, AWeatherGui *gui)
225 GError *error = NULL;
226 GtkBuilder *builder = gtk_builder_new();
227 if (!gtk_builder_add_from_file(builder, DATADIR "/aweather/about.xml", &error))
228 g_error("Failed to create gtk builder: %s", error->message);
229 gtk_builder_connect_signals(builder, NULL);
230 GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
231 gtk_window_set_transient_for(GTK_WINDOW(window),
232 GTK_WINDOW(aweather_gui_get_widget(gui, "window")));
233 gtk_widget_show_all(window);
234 g_object_unref(builder);
237 void on_location_changed(AWeatherView *view,
238 gdouble x, gdouble y, gdouble z, AWeatherGui *gui)
240 /* Reset clipping area and redraw */
241 GtkWidget *da = aweather_gui_get_widget(gui, "drawing");
242 on_configure(da, NULL, gui);
243 aweather_gui_gl_redraw(gui);
246 /* TODO: replace the code in these with `gtk_tree_model_find' utility */
247 static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
249 g_debug("AWeatherGui: update_time_widget");
250 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
251 GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
252 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
255 gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
256 gtk_tree_model_get(model, &iter, 0, &text, -1);
257 if (g_str_equal(text, time)) {
258 GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
259 g_signal_handlers_block_by_func(tview,
260 G_CALLBACK(on_site_changed), gui);
261 gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
262 g_signal_handlers_unblock_by_func(tview,
263 G_CALLBACK(on_site_changed), gui);
264 gtk_tree_path_free(path);
271 static void update_site_widget(AWeatherView *view, char *site, AWeatherGui *gui)
273 g_debug("AWeatherGui: updat_site_widget - site=%s", site);
274 GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
275 GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
276 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
278 gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
279 for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
281 gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
283 gtk_tree_model_get(model, &iter2, 1, &text, -1);
284 if (g_str_equal(text, site)) {
285 g_signal_handlers_block_by_func(combo,
286 G_CALLBACK(on_site_changed), gui);
287 gtk_combo_box_set_active_iter(combo, &iter2);
288 g_signal_handlers_unblock_by_func(combo,
289 G_CALLBACK(on_site_changed), gui);
301 static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
302 GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
304 gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
305 g_object_set(cell, "sensitive", sensitive, NULL);
308 static void site_setup(AWeatherGui *gui)
310 GtkTreeIter state, city;
311 GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
312 for (int i = 0; cities[i].label; i++) {
313 if (cities[i].type == LOCATION_STATE) {
314 gtk_tree_store_append(store, &state, NULL);
315 gtk_tree_store_set (store, &state, 0, cities[i].label,
316 1, cities[i].code, -1);
318 gtk_tree_store_append(store, &city, &state);
319 gtk_tree_store_set (store, &city, 0, cities[i].label,
320 1, cities[i].code, -1);
324 GtkWidget *combo = aweather_gui_get_widget(gui, "site");
325 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
326 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
327 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
328 gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
329 gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
330 combo_sensitive, NULL, NULL);
331 g_object_unref(renderer);
332 g_object_unref(store);
334 AWeatherView *aview = aweather_gui_get_view(gui);
335 g_signal_connect(aview, "site-changed", G_CALLBACK(update_site_widget), gui);
338 static void time_setup(AWeatherGui *gui)
340 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
341 GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
342 gtk_tree_view_set_model(tview, store);
344 GtkCellRenderer *rend = gtk_cell_renderer_text_new();
345 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
346 "Time", rend, "text", 0, NULL);
347 gtk_tree_view_append_column(tview, col);
349 AWeatherView *aview = aweather_gui_get_view(gui);
350 g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
353 static void opengl_setup(AWeatherGui *gui)
355 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
357 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
358 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
359 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
361 g_error("Failed to create glconfig");
362 if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
363 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
364 g_error("GL lacks required capabilities");
366 /* Set up OpenGL Stuff, glade doesn't like doing these */
367 g_signal_connect(drawing, "map-event", G_CALLBACK(on_map), gui);
368 g_signal_connect(drawing, "configure-event", G_CALLBACK(on_configure), gui);
369 g_signal_connect(drawing, "expose-event", G_CALLBACK(on_expose), gui);
377 AWeatherGui *aweather_gui_new()
379 g_debug("AWeatherGui: new");
380 GError *error = NULL;
382 AWeatherGui *self = g_object_new(AWEATHER_TYPE_GUI, NULL);
383 self->view = aweather_view_new();
384 self->builder = gtk_builder_new();
386 if (!gtk_builder_add_from_file(self->builder, DATADIR "/aweather/main.xml", &error))
387 g_error("Failed to create gtk builder: %s", error->message);
388 gtk_builder_connect_signals(self->builder, self);
389 g_signal_connect(self, "delete-event", G_CALLBACK(gtk_main_quit), self);
390 g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), self);
391 gtk_widget_reparent(aweather_gui_get_widget(self, "body"), GTK_WIDGET(self));
393 /* Load components */
394 aweather_view_set_location(self->view, 0, 0, -300*1000);
395 g_signal_connect(self->view, "location-changed", G_CALLBACK(on_location_changed), self);
401 AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
403 g_assert(AWEATHER_IS_GUI(gui));
406 GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
408 g_assert(AWEATHER_IS_GUI(gui));
411 GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
413 g_assert(AWEATHER_IS_GUI(gui));
414 GObject *widget = gtk_builder_get_object(gui->builder, name);
415 if (!GTK_IS_WIDGET(widget))
416 g_error("Failed to get widget `%s'", name);
417 return GTK_WIDGET(widget);
419 void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin)
421 g_debug("AWeatherGui: register_plugin");
422 gui->plugins = g_list_append(gui->plugins, plugin);
424 void aweather_gui_gl_redraw(AWeatherGui *gui)
426 g_debug("AWeatherGui: gl_redraw");
427 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
428 gtk_widget_queue_draw(drawing);
430 void aweather_gui_gl_begin(AWeatherGui *gui)
432 g_assert(AWEATHER_IS_GUI(gui));
434 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
435 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
436 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
438 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
439 g_assert_not_reached();
441 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
443 void aweather_gui_gl_end(AWeatherGui *gui)
445 g_assert(AWEATHER_IS_GUI(gui));
446 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
447 gdk_gl_drawable_gl_end(gldrawable);
449 void aweather_gui_gl_flush(AWeatherGui *gui)
451 g_assert(AWEATHER_IS_GUI(gui));
452 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
453 if (gdk_gl_drawable_is_double_buffered(gldrawable))
454 gdk_gl_drawable_swap_buffers(gldrawable);
457 gdk_gl_drawable_gl_end(gldrawable);