+/*
+ * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
#include <config.h>
#include <gtk/gtk.h>
#include <gtk/gtkgl.h>
#include <gdk/gdkkeysyms.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <math.h>
#include "aweather-gui.h"
#include "aweather-view.h"
+#include "aweather-plugin.h"
+#include "location.h"
/****************
* GObject code *
****************/
-G_DEFINE_TYPE(AWeatherGui, aweather_gui, G_TYPE_OBJECT);
-
-/* Constructor / destructors */
+G_DEFINE_TYPE(AWeatherGui, aweather_gui, GTK_TYPE_WINDOW);
static void aweather_gui_init(AWeatherGui *gui)
{
- g_message("aweather_gui_init");
- /* Default values */
- gui->view = NULL;
- gui->builder = NULL;
- gui->window = NULL;
- gui->tabs = NULL;
- gui->drawing = NULL;
+ gui->plugins = NULL;
+ g_debug("AWeatherGui: init");
}
-
static GObject *aweather_gui_constructor(GType gtype, guint n_properties,
GObjectConstructParam *properties)
{
- g_message("aweather_gui_constructor");
+ g_debug("aweather_gui: constructor");
GObjectClass *parent_class = G_OBJECT_CLASS(aweather_gui_parent_class);
return parent_class->constructor(gtype, n_properties, properties);
}
-
-static void aweather_gui_dispose (GObject *gobject)
+static void aweather_gui_dispose(GObject *gobject)
{
- g_message("aweather_gui_dispose");
+ g_debug("AWeatherGui: dispose");
AWeatherGui *gui = AWEATHER_GUI(gobject);
- g_object_unref(gui->view );
- g_object_unref(gui->builder);
- g_object_unref(gui->window );
- g_object_unref(gui->tabs );
- g_object_unref(gui->drawing);
+ if (gui->view) {
+ g_object_unref(gui->view);
+ gui->view = NULL;
+ }
+ if (gui->builder) {
+ /* Reparent to avoid double unrefs */
+ GtkWidget *body = aweather_gui_get_widget(gui, "body");
+ GtkWidget *window = aweather_gui_get_widget(gui, "window");
+ gtk_widget_reparent(body, window);
+ g_object_unref(gui->builder);
+ gui->builder = NULL;
+ }
+ if (gui->plugins) {
+ g_list_foreach(gui->plugins, (GFunc)g_object_unref, NULL);
+ g_list_free(gui->plugins);
+ gui->plugins = NULL;
+ }
+ //for (GList *cur = gui->plugins; cur; cur = cur->next)
+ // g_object_unref(cur->data);
G_OBJECT_CLASS(aweather_gui_parent_class)->dispose(gobject);
}
-
static void aweather_gui_finalize(GObject *gobject)
{
- g_message("aweather_gui_finalize");
+ g_debug("AWeatherGui: finalize");
G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
-}
+ gtk_main_quit();
+}
static void aweather_gui_class_init(AWeatherGuiClass *klass)
{
- g_message("aweather_gui_class_init");
+ g_debug("AWeatherGui: class_init");
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
gobject_class->constructor = aweather_gui_constructor;
gobject_class->dispose = aweather_gui_dispose;
gobject_class->finalize = aweather_gui_finalize;
}
-/* Methods */
+/*************
+ * Callbacks *
+ *************/
+gboolean on_drawing_button_press(GtkWidget *widget, GdkEventButton *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_drawing_button_press - Grabbing focus");
+ GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
+ gtk_widget_grab_focus(drawing);
+ return TRUE;
+}
+gboolean on_drawing_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_drawing_key_press - key=%x, state=%x",
+ event->keyval, event->state);
+ AWeatherView *view = aweather_gui_get_view(gui);
+ double x,y,z;
+ aweather_view_get_location(view, &x, &y, &z);
+ guint kv = event->keyval;
+ if (kv == GDK_Right || kv == GDK_l) aweather_view_pan(view, z/10, 0, 0);
+ else if (kv == GDK_Left || kv == GDK_h) aweather_view_pan(view, -z/10, 0, 0);
+ else if (kv == GDK_Up || kv == GDK_k) aweather_view_pan(view, 0, z/10, 0);
+ else if (kv == GDK_Down || kv == GDK_j) aweather_view_pan(view, 0, -z/10, 0);
+ else if (kv == GDK_minus || kv == GDK_o) aweather_view_zoom(view, 10./9);
+ else if (kv == GDK_plus || kv == GDK_i) aweather_view_zoom(view, 9./10);
+ return TRUE;
+}
+
+gboolean on_gui_key_press(GtkWidget *widget, GdkEventKey *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_gui_key_press - key=%x, state=%x",
+ event->keyval, event->state);
+ AWeatherView *view = aweather_gui_get_view(gui);
+ if (event->keyval == GDK_q)
+ gtk_widget_destroy(GTK_WIDGET(gui));
+ else if (event->keyval == GDK_r && event->state & GDK_CONTROL_MASK)
+ aweather_view_refresh(view);
+ else if (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab) {
+ GtkNotebook *tabs = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs"));
+ gint num_tabs = gtk_notebook_get_n_pages(tabs);
+ gint cur_tab = gtk_notebook_get_current_page(tabs);
+ if (event->state & GDK_SHIFT_MASK)
+ gtk_notebook_set_current_page(tabs, (cur_tab-1)%num_tabs);
+ else
+ gtk_notebook_set_current_page(tabs, (cur_tab+1)%num_tabs);
+ };
+ return FALSE;
+}
+
+void on_quit(GtkMenuItem *menu, AWeatherGui *gui)
+{
+ gtk_widget_destroy(GTK_WIDGET(gui));
+}
+
+void on_offline(GtkToggleAction *action, AWeatherGui *gui)
+{
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_set_offline(view,
+ gtk_toggle_action_get_active(action));
+}
+
+void on_zoomin(GtkAction *action, AWeatherGui *gui)
+{
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_zoom(view, 3./4);
+}
+
+void on_zoomout(GtkAction *action, AWeatherGui *gui)
+{
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_zoom(view, 4./3);
+}
+
+void on_refresh(GtkAction *action, AWeatherGui *gui)
+{
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_refresh(view);
+}
+
+void on_about(GtkAction *action, AWeatherGui *gui)
+{
+ // TODO: use gtk_widget_hide_on_delete()
+ GError *error = NULL;
+ GtkBuilder *builder = gtk_builder_new();
+ if (!gtk_builder_add_from_file(builder, DATADIR "/aweather/about.ui", &error))
+ g_error("Failed to create gtk builder: %s", error->message);
+ gtk_builder_connect_signals(builder, NULL);
+ GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
+ gtk_window_set_transient_for(GTK_WINDOW(window),
+ GTK_WINDOW(aweather_gui_get_widget(gui, "window")));
+ gtk_widget_show_all(window);
+ g_object_unref(builder);
+}
+
+void on_time_changed(GtkTreeView *view, GtkTreePath *path,
+ GtkTreeViewColumn *column, AWeatherGui *gui)
+{
+ gchar *time;
+ GtkTreeIter iter;
+ GtkTreeModel *model = gtk_tree_view_get_model(view);
+ gtk_tree_model_get_iter(model, &iter, path);
+ gtk_tree_model_get(model, &iter, 0, &time, -1);
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ aweather_view_set_time(aview, time);
+ g_free(time);
+}
+
+void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
+{
+ gchar *site;
+ GtkTreeIter iter;
+ GtkTreeModel *model = gtk_combo_box_get_model(combo);
+ gtk_combo_box_get_active_iter(combo, &iter);
+ gtk_tree_model_get(model, &iter, 1, &site, -1);
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_set_site(view, site);
+ g_free(site);
+}
+
+gboolean on_map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_map");
+ AWeatherView *view = aweather_gui_get_view(gui);
+
+ /* Misc */
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+
+ /* Tessellation, "finding intersecting triangles" */
+ /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
+ /* http://www.opengl.org/wiki/Alpha_Blending */
+ glAlphaFunc(GL_GREATER,0.1);
+ glEnable(GL_ALPHA_TEST);
+
+ /* Depth test */
+ glClearDepth(1.0);
+ glDepthFunc(GL_LEQUAL);
+ glEnable(GL_DEPTH_TEST);
+
+ aweather_gui_gl_end(gui);
+ return FALSE;
+}
+
+gboolean on_configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_confiure");
+ aweather_gui_gl_begin(gui);
+
+ double x, y, z;
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_get_location(view, &x, &y, &z);
+
+ /* Window is at 500 m from camera */
+ double width = da->allocation.width;
+ double height = da->allocation.height;
+
+ glViewport(0, 0, width, height);
+
+ /* Perspective */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ double rad = atan((height/2)/500);
+ double deg = (rad*180)/M_PI;
+
+ gluPerspective(deg*2, width/height, -z-20, -z+20);
+ //gluPerspective(deg*2, width/height, 1, 500*1000);
+
+ aweather_gui_gl_end(gui);
+ return FALSE;
+}
+
+gboolean on_expose(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: on_expose - begin");
+ aweather_gui_gl_begin(gui);
+
+ double x, y, z;
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_get_location(view, &x, &y, &z);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(x, y, z);
+
+ //glRotatef(-45, 1, 0, 0);
+
+ /* Expose plugins */
+ for (GList *cur = gui->plugins; cur; cur = cur->next) {
+ AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data);
+ aweather_plugin_expose(plugin);
+ }
+
+ aweather_gui_gl_end(gui);
+ aweather_gui_gl_flush(gui);
+ g_debug("AWeatherGui: on_expose - end\n");
+ return FALSE;
+}
+
+void on_location_changed(AWeatherView *view,
+ gdouble x, gdouble y, gdouble z, AWeatherGui *gui)
+{
+ /* Reset clipping area and redraw */
+ GtkWidget *da = aweather_gui_get_widget(gui, "drawing");
+ on_configure(da, NULL, gui);
+ aweather_gui_gl_redraw(gui);
+}
+
+/* TODO: replace the code in these with `gtk_tree_model_find' utility */
+static void update_time_widget(AWeatherView *view, const char *time, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: update_time_widget - time=%s", time);
+ GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
+ GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
+ char *text;
+ GtkTreeIter iter;
+ gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
+ gtk_tree_model_get(model, &iter, 0, &text, -1);
+ if (g_str_equal(text, time)) {
+ GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
+ g_signal_handlers_block_by_func(tview,
+ G_CALLBACK(on_site_changed), gui);
+ gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
+ g_signal_handlers_unblock_by_func(tview,
+ G_CALLBACK(on_site_changed), gui);
+ gtk_tree_path_free(path);
+ g_free(text);
+ return;
+ }
+ g_free(text);
+ }
+}
+static void update_site_widget(AWeatherView *view, char *site, AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: updat_site_widget - site=%s", site);
+ GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
+ GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
+ GtkTreeIter iter1;
+ gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
+ GtkTreeIter iter2;
+ gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
+ char *text;
+ gtk_tree_model_get(model, &iter2, 1, &text, -1);
+ if (text == NULL)
+ continue;
+ if (g_str_equal(text, site)) {
+ g_signal_handlers_block_by_func(combo,
+ G_CALLBACK(on_site_changed), gui);
+ gtk_combo_box_set_active_iter(combo, &iter2);
+ g_signal_handlers_unblock_by_func(combo,
+ G_CALLBACK(on_site_changed), gui);
+ g_free(text);
+ return;
+ }
+ g_free(text);
+ }
+ }
+}
+
+/*****************
+ * Setup helpers *
+ *****************/
+static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
+ GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
+{
+ gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
+ g_object_set(cell, "sensitive", sensitive, NULL);
+}
+
+static void site_setup(AWeatherGui *gui)
+{
+ GtkTreeIter state, city;
+ GtkTreeStore *store = GTK_TREE_STORE(aweather_gui_get_object(gui, "sites"));
+ for (int i = 0; cities[i].label; i++) {
+ if (cities[i].type == LOCATION_STATE) {
+ gtk_tree_store_append(store, &state, NULL);
+ gtk_tree_store_set (store, &state, 0, cities[i].label,
+ 1, cities[i].code, -1);
+ } else {
+ gtk_tree_store_append(store, &city, &state);
+ gtk_tree_store_set (store, &city, 0, cities[i].label,
+ 1, cities[i].code, -1);
+ }
+ }
+
+ GtkWidget *combo = aweather_gui_get_widget(gui, "site");
+ GObject *renderer = aweather_gui_get_object(gui, "site_rend");
+ gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo),
+ GTK_CELL_RENDERER(renderer), combo_sensitive, NULL, NULL);
+
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ g_signal_connect(aview, "site-changed", G_CALLBACK(update_site_widget), gui);
+}
+
+static void time_setup(AWeatherGui *gui)
+{
+ GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
+ GtkCellRenderer *rend = gtk_cell_renderer_text_new();
+ GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
+ "Time", rend, "text", 0, NULL);
+
+ gtk_tree_view_append_column(tview, col);
+ g_object_set(rend, "size-points", 8.0, NULL);
+
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
+}
+
+static void opengl_setup(AWeatherGui *gui)
+{
+ GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
+
+ GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
+ GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
+ GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
+ if (!glconfig)
+ g_error("Failed to create glconfig");
+ if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing),
+ glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
+ g_error("GL lacks required capabilities");
+
+ /* Set up OpenGL Stuff, glade doesn't like doing these */
+ g_signal_connect(drawing, "map-event", G_CALLBACK(on_map), gui);
+ g_signal_connect(drawing, "configure-event", G_CALLBACK(on_configure), gui);
+ g_signal_connect(drawing, "expose-event", G_CALLBACK(on_expose), gui);
+}
+
+
+
+/***********
+ * Methods *
+ ***********/
AWeatherGui *aweather_gui_new()
{
- g_message("aweather_gui_new");
+ g_debug("AWeatherGui: new");
GError *error = NULL;
- AWeatherGui *gui = g_object_new(AWEATHER_TYPE_GUI, NULL);
+ AWeatherGui *self = g_object_new(AWEATHER_TYPE_GUI, NULL);
+ self->view = aweather_view_new();
+ self->builder = gtk_builder_new();
- gui->builder = gtk_builder_new();
- if (!gtk_builder_add_from_file(gui->builder, DATADIR "/aweather/aweather.xml", &error))
+ if (!gtk_builder_add_from_file(self->builder, DATADIR "/aweather/main.ui", &error))
g_error("Failed to create gtk builder: %s", error->message);
- gui->view = aweather_view_new();
- gui->window = GTK_WINDOW (gtk_builder_get_object(gui->builder, "window"));
- gui->tabs = GTK_NOTEBOOK (gtk_builder_get_object(gui->builder, "tabs"));
- gui->drawing = GTK_DRAWING_AREA(gtk_builder_get_object(gui->builder, "drawing"));
- gtk_builder_connect_signals(gui->builder, NULL);
- return gui;
+ gtk_builder_connect_signals(self->builder, self);
+ g_signal_connect(self, "key-press-event", G_CALLBACK(on_gui_key_press), self);
+ gtk_widget_reparent(aweather_gui_get_widget(self, "body"), GTK_WIDGET(self));
+
+ /* Load components */
+ aweather_view_set_location(self->view, 0, 0, -300*1000);
+ g_signal_connect(self->view, "location-changed", G_CALLBACK(on_location_changed), self);
+ site_setup(self);
+ time_setup(self);
+ opengl_setup(self);
+ return self;
}
AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->view;
}
GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
{
+ g_debug("AWeatherGui: get_builder");
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->builder;
}
-GtkWindow *aweather_gui_get_window(AWeatherGui *gui)
+GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name)
{
- return gui->window;
+ g_debug("AWeatherGui: get_widget - name=%s", name);
+ g_assert(AWEATHER_IS_GUI(gui));
+ GObject *widget = gtk_builder_get_object(gui->builder, name);
+ if (!GTK_IS_WIDGET(widget))
+ g_error("Failed to get widget `%s'", name);
+ return GTK_WIDGET(widget);
}
-GtkNotebook *aweather_gui_get_tabs(AWeatherGui *gui)
+GObject *aweather_gui_get_object(AWeatherGui *gui, const gchar *name)
{
- return gui->tabs;
+ g_debug("AWeatherGui: get_widget - name=%s", name);
+ g_assert(AWEATHER_IS_GUI(gui));
+ return gtk_builder_get_object(gui->builder, name);
}
-GtkDrawingArea *aweather_gui_get_drawing(AWeatherGui *gui)
+void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin)
{
- return gui->drawing;
+ g_debug("AWeatherGui: register_plugin");
+ gui->plugins = g_list_append(gui->plugins, plugin);
}
+void aweather_gui_gl_redraw(AWeatherGui *gui)
+{
+ g_debug("AWeatherGui: gl_redraw");
+ GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
+ gtk_widget_queue_draw(drawing);
+}
+void aweather_gui_gl_begin(AWeatherGui *gui)
+{
+ g_assert(AWEATHER_IS_GUI(gui));
-//void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin);
+ GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(drawing));
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(drawing));
-/************************
- * GtkBuilder callbacks *
- ************************/
-gboolean on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
+ if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
+ g_assert_not_reached();
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}
+void aweather_gui_gl_end(AWeatherGui *gui)
{
- if (event->keyval == GDK_q)
- gtk_main_quit();
- return TRUE;
+ g_assert(AWEATHER_IS_GUI(gui));
+ GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
+ gdk_gl_drawable_gl_end(gldrawable);
}
-
-void on_site_changed() {
- g_message("site changed");
+void aweather_gui_gl_flush(AWeatherGui *gui)
+{
+ g_assert(AWEATHER_IS_GUI(gui));
+ GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
+ if (gdk_gl_drawable_is_double_buffered(gldrawable))
+ gdk_gl_drawable_swap_buffers(gldrawable);
+ else
+ glFlush();
+ gdk_gl_drawable_gl_end(gldrawable);
}