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, G_TYPE_OBJECT);
35 static void aweather_gui_init(AWeatherGui *gui)
38 //g_message("aweather_gui_init");
40 static GObject *aweather_gui_constructor(GType gtype, guint n_properties,
41 GObjectConstructParam *properties)
43 //g_message("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_message("aweather_gui_dispose");
50 AWeatherGui *gui = AWEATHER_GUI(gobject);
51 g_object_unref(gui->view );
52 g_object_unref(gui->builder);
53 g_object_unref(gui->window );
54 g_object_unref(gui->tabs );
55 g_object_unref(gui->drawing);
56 G_OBJECT_CLASS(aweather_gui_parent_class)->dispose(gobject);
58 static void aweather_gui_finalize(GObject *gobject)
60 //g_message("aweather_gui_finalize");
61 G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
63 static void aweather_gui_class_init(AWeatherGuiClass *klass)
65 //g_message("aweather_gui_class_init");
66 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
67 gobject_class->constructor = aweather_gui_constructor;
68 gobject_class->dispose = aweather_gui_dispose;
69 gobject_class->finalize = aweather_gui_finalize;
75 gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
77 g_message("key_press: key=%x, state=%x", event->keyval, event->state);
78 AWeatherView *view = aweather_gui_get_view(gui);
80 aweather_view_get_location(view, &x, &y, &z);
81 if (event->keyval == GDK_q)
83 else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
84 aweather_view_refresh(view);
85 else 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);
91 else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
92 GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
93 gint num_tabs = gtk_notebook_get_n_pages(tabs);
94 gint cur_tab = gtk_notebook_get_current_page(tabs);
95 if (event->state & GDK_SHIFT_MASK)
96 gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
98 gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
103 void on_refresh(GtkToolButton *button, AWeatherGui *gui)
105 AWeatherView *view = aweather_gui_get_view(gui);
106 aweather_view_refresh(view);
109 void on_zoomin(GtkToolButton *button, AWeatherGui *gui)
111 AWeatherView *view = aweather_gui_get_view(gui);
112 aweather_view_zoom(view, 3./4);
115 void on_zoomout(GtkToolButton *button, AWeatherGui *gui)
117 AWeatherView *view = aweather_gui_get_view(gui);
118 aweather_view_zoom(view, 4./3);
121 void on_time_changed(GtkTreeView *view, GtkTreePath *path,
122 GtkTreeViewColumn *column, AWeatherGui *gui)
126 GtkTreeModel *model = gtk_tree_view_get_model(view);
127 gtk_tree_model_get_iter(model, &iter, path);
128 gtk_tree_model_get(model, &iter, 0, &time, -1);
129 AWeatherView *aview = aweather_gui_get_view(gui);
130 aweather_view_set_time(aview, time);
134 void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
138 GtkTreeModel *model = gtk_combo_box_get_model(combo);
139 gtk_combo_box_get_active_iter(combo, &iter);
140 gtk_tree_model_get(model, &iter, 1, &site, -1);
141 AWeatherView *view = aweather_gui_get_view(gui);
142 aweather_view_set_site(view, site);
146 gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
149 AWeatherView *view = aweather_gui_get_view(gui);
150 aweather_view_set_site(view, "IND");
154 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
155 glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
157 /* Tessellation, "finding intersecting triangles" */
158 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
159 /* http://www.opengl.org/wiki/Alpha_Blending */
160 glAlphaFunc(GL_GREATER,0.1);
161 glEnable(GL_ALPHA_TEST);
165 glDepthFunc(GL_LEQUAL);
166 glEnable(GL_DEPTH_TEST);
168 aweather_gui_gl_end(gui);
172 gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
174 //g_message("on_confiure");
175 aweather_gui_gl_begin(gui);
178 AWeatherView *view = aweather_gui_get_view(gui);
179 aweather_view_get_location(view, &x, &y, &z);
181 /* Window is at 500 m from camera */
182 double width = da->allocation.width;
183 double height = da->allocation.height;
185 glViewport(0, 0, width, height);
188 glMatrixMode(GL_PROJECTION);
190 double rad = atan((height/2)/500);
191 double deg = (rad*180)/M_PI;
193 //gluPerspective(deg*2, width/height, -z-20, -z+20);
194 gluPerspective(deg*2, width/height, 1, 500*1000);
196 aweather_gui_gl_end(gui);
200 gboolean on_expose_begin(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
202 g_message("aweather:expose_begin");
203 aweather_gui_gl_begin(gui);
206 AWeatherView *view = aweather_gui_get_view(gui);
207 aweather_view_get_location(view, &x, &y, &z);
209 glMatrixMode(GL_MODELVIEW);
211 glTranslatef(x, y, z);
213 //glRotatef(-45, 1, 0, 0);
216 for (GList *cur = gui->plugins; cur; cur = cur->next) {
217 AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data);
218 aweather_plugin_expose(plugin);
223 gboolean on_expose_end(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
225 g_message("aweather:expose_end\n");
226 aweather_gui_gl_end(gui);
227 aweather_gui_gl_flush(gui);
231 void on_about(GtkMenuItem *item, AWeatherGui *gui)
233 GError *error = NULL;
234 GtkBuilder *builder = gtk_builder_new();
235 if (!gtk_builder_add_from_file(builder, DATADIR "/aweather/about.xml", &error))
236 g_error("Failed to create gtk builder: %s", error->message);
237 gtk_builder_connect_signals(builder, NULL);
238 GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
239 gtk_window_set_transient_for(GTK_WINDOW(window),
240 GTK_WINDOW(aweather_gui_get_widget(gui, "window")));
241 gtk_widget_show_all(window);
242 g_object_unref(builder);
245 void on_location_changed(AWeatherView *view,
246 gdouble x, gdouble y, gdouble z, AWeatherGui *gui)
248 /* Reset clipping area and redraw */
249 GtkWidget *da = aweather_gui_get_widget(gui, "drawing");
250 on_configure(da, NULL, gui);
251 aweather_gui_gl_redraw(gui);
254 /* TODO: replace the code in these with `gtk_tree_model_find' utility */
255 static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
257 g_message("updating time widget");
258 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
259 GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
260 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
263 gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
264 gtk_tree_model_get(model, &iter, 0, &text, -1);
265 if (g_str_equal(text, time)) {
266 GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
267 g_signal_handlers_block_by_func(tview,
268 G_CALLBACK(on_site_changed), gui);
269 gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
270 g_signal_handlers_unblock_by_func(tview,
271 G_CALLBACK(on_site_changed), gui);
272 gtk_tree_path_free(path);
279 static void update_site_widget(AWeatherView *view, char *site, AWeatherGui *gui)
281 g_message("updating site widget to %s", site);
282 GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
283 GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
284 for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
286 gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
287 for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
289 gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
291 gtk_tree_model_get(model, &iter2, 1, &text, -1);
292 if (g_str_equal(text, site)) {
293 g_signal_handlers_block_by_func(combo,
294 G_CALLBACK(on_site_changed), gui);
295 gtk_combo_box_set_active_iter(combo, &iter2);
296 g_signal_handlers_unblock_by_func(combo,
297 G_CALLBACK(on_site_changed), gui);
309 static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
310 GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
312 gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
313 g_object_set(cell, "sensitive", sensitive, NULL);
316 static void site_setup(AWeatherGui *gui)
318 GtkTreeIter state, city;
319 GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
320 for (int i = 0; cities[i].label; i++) {
321 if (cities[i].type == LOCATION_STATE) {
322 gtk_tree_store_append(store, &state, NULL);
323 gtk_tree_store_set (store, &state, 0, cities[i].label,
324 1, cities[i].code, -1);
326 gtk_tree_store_append(store, &city, &state);
327 gtk_tree_store_set (store, &city, 0, cities[i].label,
328 1, cities[i].code, -1);
332 GtkWidget *combo = aweather_gui_get_widget(gui, "site");
333 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
334 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
335 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
336 gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
337 gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
338 combo_sensitive, NULL, NULL);
339 g_object_unref(renderer);
340 g_object_unref(store);
342 AWeatherView *aview = aweather_gui_get_view(gui);
343 g_signal_connect(aview, "site-changed", G_CALLBACK(update_site_widget), gui);
346 static void time_setup(AWeatherGui *gui)
348 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
349 GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
350 gtk_tree_view_set_model(tview, store);
352 GtkCellRenderer *rend = gtk_cell_renderer_text_new();
353 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
354 "Time", rend, "text", 0, NULL);
355 gtk_tree_view_append_column(tview, col);
357 AWeatherView *aview = aweather_gui_get_view(gui);
358 g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
361 static void opengl_setup(AWeatherGui *gui)
363 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
365 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
366 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
367 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
369 g_error("Failed to create glconfig");
370 if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
371 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
372 g_error("GL lacks required capabilities");
374 /* Set up OpenGL Stuff, glade doesn't like doing these */
375 g_signal_connect (drawing, "map-event", G_CALLBACK(on_map), gui);
376 g_signal_connect (drawing, "configure-event", G_CALLBACK(on_configure), gui);
377 g_signal_connect (drawing, "expose-event", G_CALLBACK(on_expose_begin), gui);
378 g_signal_connect_after(drawing, "expose-event", G_CALLBACK(on_expose_end), gui);
386 AWeatherGui *aweather_gui_new()
388 //g_message("aweather_gui_new");
389 GError *error = NULL;
391 AWeatherGui *gui = g_object_new(AWEATHER_TYPE_GUI, NULL);
393 gui->builder = gtk_builder_new();
394 if (!gtk_builder_add_from_file(gui->builder, DATADIR "/aweather/main.xml", &error))
395 g_error("Failed to create gtk builder: %s", error->message);
396 gui->view = aweather_view_new();
397 gui->window = GTK_WINDOW (gtk_builder_get_object(gui->builder, "main"));
398 gui->tabs = GTK_NOTEBOOK (gtk_builder_get_object(gui->builder, "tabs"));
399 gui->drawing = GTK_DRAWING_AREA(gtk_builder_get_object(gui->builder, "drawing"));
400 gtk_builder_connect_signals(gui->builder, gui);
403 /* Load components */
404 aweather_view_set_location(gui->view, 0, 0, -300*1000);
405 g_signal_connect(gui->view, "location-changed", G_CALLBACK(on_location_changed), gui);
411 AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
413 g_assert(AWEATHER_IS_GUI(gui));
416 GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
418 g_assert(AWEATHER_IS_GUI(gui));
421 GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
423 g_assert(AWEATHER_IS_GUI(gui));
424 GObject *widget = gtk_builder_get_object(gui->builder, name);
425 if (!GTK_IS_WIDGET(widget))
426 g_error("Failed to get widget `%s'", name);
427 return GTK_WIDGET(widget);
429 void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin)
431 g_message("registering plugin");
432 gui->plugins = g_list_append(gui->plugins, plugin);
434 void aweather_gui_gl_redraw(AWeatherGui *gui)
437 GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
438 gtk_widget_queue_draw(drawing);
440 void aweather_gui_gl_begin(AWeatherGui *gui)
442 g_assert(AWEATHER_IS_GUI(gui));
444 GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
445 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
446 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
448 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
449 g_assert_not_reached();
451 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
453 void aweather_gui_gl_end(AWeatherGui *gui)
455 g_assert(AWEATHER_IS_GUI(gui));
456 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
457 gdk_gl_drawable_gl_end(gldrawable);
459 void aweather_gui_gl_flush(AWeatherGui *gui)
461 g_assert(AWEATHER_IS_GUI(gui));
462 GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
463 if (gdk_gl_drawable_is_double_buffered(gldrawable))
464 gdk_gl_drawable_swap_buffers(gldrawable);
467 gdk_gl_drawable_gl_end(gldrawable);