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_drawing_button_press(GtkWidget *widget, GdkEventButton *event, AWeatherGui *gui)
74 g_debug("AWeatherGui: on_drawing_button_press - Grabbing focus");
75 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
76 gtk_widget_grab_focus(drawing);
79 gboolean on_drawing_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
81 g_debug("AWeatherGui: on_drawing_key_press - key=%x, state=%x", event->keyval, event->state);
82 AWeatherView *view = aweather_gui_get_view(gui);
84 aweather_view_get_location(view, &x, &y, &z);
85 if (event->keyval == GDK_Right) aweather_view_pan(view, z/10, 0, 0);
86 else if (event->keyval == GDK_Left) aweather_view_pan(view, -z/10, 0, 0);
87 else if (event->keyval == GDK_Up) aweather_view_pan(view, 0, z/10, 0);
88 else if (event->keyval == GDK_Down) aweather_view_pan(view, 0, -z/10, 0);
89 else if (event->keyval == GDK_minus) aweather_view_zoom(view, 10./9);
90 else if (event->keyval == GDK_plus) aweather_view_zoom(view, 9./10);
94 gboolean on_gui_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
96 g_debug("AWeatherGui: on_gui_key_press - key=%x, state=%x", event->keyval, event->state);
97 AWeatherView *view = aweather_gui_get_view(gui);
98 if (event->keyval == GDK_q)
100 else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
101 aweather_view_refresh(view);
102 else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
103 GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
104 gint num_tabs = gtk_notebook_get_n_pages(tabs);
105 gint cur_tab = gtk_notebook_get_current_page(tabs);
106 if (event->state & GDK_SHIFT_MASK)
107 gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
109 gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
114 void on_refresh(GtkToolButton *button, AWeatherGui *gui)
116 AWeatherView *view = aweather_gui_get_view(gui);
117 aweather_view_refresh(view);
120 void on_zoomin(GtkToolButton *button, AWeatherGui *gui)
122 AWeatherView *view = aweather_gui_get_view(gui);
123 aweather_view_zoom(view, 3./4);
126 void on_zoomout(GtkToolButton *button, AWeatherGui *gui)
128 AWeatherView *view = aweather_gui_get_view(gui);
129 aweather_view_zoom(view, 4./3);
132 void on_time_changed(GtkTreeView *view, GtkTreePath *path,
133 GtkTreeViewColumn *column, AWeatherGui *gui)
137 GtkTreeModel *model = gtk_tree_view_get_model(view);
138 gtk_tree_model_get_iter(model, &iter, path);
139 gtk_tree_model_get(model, &iter, 0, &time, -1);
140 AWeatherView *aview = aweather_gui_get_view(gui);
141 aweather_view_set_time(aview, time);
145 void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
149 GtkTreeModel *model = gtk_combo_box_get_model(combo);
150 gtk_combo_box_get_active_iter(combo, &iter);
151 gtk_tree_model_get(model, &iter, 1, &site, -1);
152 AWeatherView *view = aweather_gui_get_view(gui);
153 aweather_view_set_site(view, site);
157 gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
159 g_debug("AWeatherGui: on_map");
160 AWeatherView *view = aweather_gui_get_view(gui);
164 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
165 glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
167 /* Tessellation, "finding intersecting triangles" */
168 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
169 /* http://www.opengl.org/wiki/Alpha_Blending */
170 glAlphaFunc(GL_GREATER,0.1);
171 glEnable(GL_ALPHA_TEST);
175 glDepthFunc(GL_LEQUAL);
176 glEnable(GL_DEPTH_TEST);
178 aweather_gui_gl_end(gui);
182 gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
184 g_debug("AWeatherGui: on_confiure");
185 aweather_gui_gl_begin(gui);
188 AWeatherView *view = aweather_gui_get_view(gui);
189 aweather_view_get_location(view, &x, &y, &z);
191 /* Window is at 500 m from camera */
192 double width = da->allocation.width;
193 double height = da->allocation.height;
195 glViewport(0, 0, width, height);
198 glMatrixMode(GL_PROJECTION);
200 double rad = atan((height/2)/500);
201 double deg = (rad*180)/M_PI;
203 gluPerspective(deg*2, width/height, -z-20, -z+20);
204 //gluPerspective(deg*2, width/height, 1, 500*1000);
206 aweather_gui_gl_end(gui);
210 gboolean on_expose(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
212 g_debug("AWeatherGui: on_expose - begin");
213 aweather_gui_gl_begin(gui);
216 AWeatherView *view = aweather_gui_get_view(gui);
217 aweather_view_get_location(view, &x, &y, &z);
219 glMatrixMode(GL_MODELVIEW);
221 glTranslatef(x, y, z);
223 //glRotatef(-45, 1, 0, 0);
226 for (GList *cur = gui->plugins; cur; cur = cur->next) {
227 AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data);
228 aweather_plugin_expose(plugin);
231 aweather_gui_gl_end(gui);
232 aweather_gui_gl_flush(gui);
233 g_debug("AWeatherGui: on_expose - end\n");
237 void on_about(GtkMenuItem *item, AWeatherGui *gui)
239 GError *error = NULL;
240 GtkBuilder *builder = gtk_builder_new();
241 if (!gtk_builder_add_from_file(builder, DATADIR "/aweather/about.xml", &error))
242 g_error("Failed to create gtk builder: %s", error->message);
243 gtk_builder_connect_signals(builder, NULL);
244 GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
245 gtk_window_set_transient_for(GTK_WINDOW(window),
246 GTK_WINDOW(aweather_gui_get_widget(gui, "window")));
247 gtk_widget_show_all(window);
248 g_object_unref(builder);
251 void on_location_changed(AWeatherView *view,
252 gdouble x, gdouble y, gdouble z, AWeatherGui *gui)
254 /* Reset clipping area and redraw */
255 GtkWidget *da = aweather_gui_get_widget(gui, "drawing");
256 on_configure(da, NULL, gui);
257 aweather_gui_gl_redraw(gui);
260 /* TODO: replace the code in these with `gtk_tree_model_find' utility */
261 static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
263 g_debug("AWeatherGui: update_time_widget");
264 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
265 GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
266 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
269 gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
270 gtk_tree_model_get(model, &iter, 0, &text, -1);
271 if (g_str_equal(text, time)) {
272 GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
273 g_signal_handlers_block_by_func(tview,
274 G_CALLBACK(on_site_changed), gui);
275 gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
276 g_signal_handlers_unblock_by_func(tview,
277 G_CALLBACK(on_site_changed), gui);
278 gtk_tree_path_free(path);
285 static void update_site_widget(AWeatherView *view, char *site, AWeatherGui *gui)
287 g_debug("AWeatherGui: updat_site_widget - site=%s", site);
288 GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
289 GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
290 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
292 gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
293 for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
295 gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
297 gtk_tree_model_get(model, &iter2, 1, &text, -1);
298 if (g_str_equal(text, site)) {
299 g_signal_handlers_block_by_func(combo,
300 G_CALLBACK(on_site_changed), gui);
301 gtk_combo_box_set_active_iter(combo, &iter2);
302 g_signal_handlers_unblock_by_func(combo,
303 G_CALLBACK(on_site_changed), gui);
315 static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
316 GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
318 gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
319 g_object_set(cell, "sensitive", sensitive, NULL);
322 static void site_setup(AWeatherGui *gui)
324 GtkTreeIter state, city;
325 GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
326 for (int i = 0; cities[i].label; i++) {
327 if (cities[i].type == LOCATION_STATE) {
328 gtk_tree_store_append(store, &state, NULL);
329 gtk_tree_store_set (store, &state, 0, cities[i].label,
330 1, cities[i].code, -1);
332 gtk_tree_store_append(store, &city, &state);
333 gtk_tree_store_set (store, &city, 0, cities[i].label,
334 1, cities[i].code, -1);
338 GtkWidget *combo = aweather_gui_get_widget(gui, "site");
339 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
340 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
341 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
342 gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
343 gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
344 combo_sensitive, NULL, NULL);
345 g_object_unref(renderer);
346 g_object_unref(store);
348 AWeatherView *aview = aweather_gui_get_view(gui);
349 g_signal_connect(aview, "site-changed", G_CALLBACK(update_site_widget), gui);
352 static void time_setup(AWeatherGui *gui)
354 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
355 GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
356 gtk_tree_view_set_model(tview, store);
358 GtkCellRenderer *rend = gtk_cell_renderer_text_new();
359 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
360 "Time", rend, "text", 0, NULL);
361 gtk_tree_view_append_column(tview, col);
363 AWeatherView *aview = aweather_gui_get_view(gui);
364 g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
367 static void opengl_setup(AWeatherGui *gui)
369 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
371 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
372 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
373 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
375 g_error("Failed to create glconfig");
376 if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
377 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
378 g_error("GL lacks required capabilities");
380 /* Set up OpenGL Stuff, glade doesn't like doing these */
381 g_signal_connect(drawing, "map-event", G_CALLBACK(on_map), gui);
382 g_signal_connect(drawing, "configure-event", G_CALLBACK(on_configure), gui);
383 g_signal_connect(drawing, "expose-event", G_CALLBACK(on_expose), gui);
391 AWeatherGui *aweather_gui_new()
393 g_debug("AWeatherGui: new");
394 GError *error = NULL;
396 AWeatherGui *self = g_object_new(AWEATHER_TYPE_GUI, NULL);
397 self->view = aweather_view_new();
398 self->builder = gtk_builder_new();
400 if (!gtk_builder_add_from_file(self->builder, DATADIR "/aweather/main.xml", &error))
401 g_error("Failed to create gtk builder: %s", error->message);
402 gtk_builder_connect_signals(self->builder, self);
403 g_signal_connect(self, "delete-event", G_CALLBACK(gtk_main_quit), self);
404 g_signal_connect(self, "key-press-event", G_CALLBACK(on_gui_key_press), self);
405 gtk_widget_reparent(aweather_gui_get_widget(self, "body"), GTK_WIDGET(self));
407 /* Load components */
408 aweather_view_set_location(self->view, 0, 0, -300*1000);
409 g_signal_connect(self->view, "location-changed", G_CALLBACK(on_location_changed), self);
415 AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
417 g_assert(AWEATHER_IS_GUI(gui));
420 GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
422 g_assert(AWEATHER_IS_GUI(gui));
425 GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
427 g_assert(AWEATHER_IS_GUI(gui));
428 GObject *widget = gtk_builder_get_object(gui->builder, name);
429 if (!GTK_IS_WIDGET(widget))
430 g_error("Failed to get widget `%s'", name);
431 return GTK_WIDGET(widget);
433 void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin)
435 g_debug("AWeatherGui: register_plugin");
436 gui->plugins = g_list_append(gui->plugins, plugin);
438 void aweather_gui_gl_redraw(AWeatherGui *gui)
440 g_debug("AWeatherGui: gl_redraw");
441 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
442 gtk_widget_queue_draw(drawing);
444 void aweather_gui_gl_begin(AWeatherGui *gui)
446 g_assert(AWEATHER_IS_GUI(gui));
448 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
449 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
450 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
452 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
453 g_assert_not_reached();
455 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
457 void aweather_gui_gl_end(AWeatherGui *gui)
459 g_assert(AWEATHER_IS_GUI(gui));
460 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
461 gdk_gl_drawable_gl_end(gldrawable);
463 void aweather_gui_gl_flush(AWeatherGui *gui)
465 g_assert(AWEATHER_IS_GUI(gui));
466 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
467 if (gdk_gl_drawable_is_double_buffered(gldrawable))
468 gdk_gl_drawable_swap_buffers(gldrawable);
471 gdk_gl_drawable_gl_end(gldrawable);