#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 "location.h"
+
+/*************
+ * callbacks *
+ *************/
+gboolean on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
+{
+ if (event->keyval == GDK_q)
+ gtk_main_quit();
+ return TRUE;
+}
+
+void on_site_changed(GtkComboBox *combo, AWeatherGui *gui) {
+ gchar *site;
+ GtkTreeIter iter;
+ AWeatherView *view = aweather_gui_get_view(gui);
+ 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);
+ aweather_view_set_location(view, site);
+}
+
+void on_time_changed() {
+ //gchar *site;
+ //GtkTreeIter iter;
+ //AWeatherView *view = aweather_gui_get_view(gui);
+ //GtkTreeModel *model = gtk_combo_box_get_model(combo);
+ //gtk_combo_box_get_active_iter(combo, &iter);
+ //gtk_tree_model_get(model, &iter, 1, &site, 0);
+ //aweather_view_set_time(view, site);
+}
+
+static gboolean configure_start(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
+{
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_set_location(view, "IND");
+
+ //g_message("opengl:configure_start");
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
+
+ if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
+ g_assert_not_reached();
+
+ double width = da->allocation.width;
+ double height = da->allocation.height;
+ double dist = 500*1000; // 500 km
+
+ /* Misc */
+ glViewport(0, 0, width, height);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glClearColor(0.8f, 0.8f, 1.0f, 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);
+
+ /* Perspective */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ double rad = atan(height/2*1000.0/dist); // 1px = 1000 meters
+ double deg = (rad*180)/M_PI;
+ gluPerspective(deg*2, width/height, dist-20, dist+20);
+
+ /* Camera position? */
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -dist);
+ //glRotatef(-45, 1, 0, 0);
+
+
+ return FALSE;
+}
+static gboolean configure_end(GtkWidget *da, GdkEventConfigure *event, gpointer user_data)
+{
+ //g_message("opengl:configure_end");
+ GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current();
+ gdk_gl_drawable_gl_end(gldrawable);
+ return FALSE;
+}
+static gboolean expose_end(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
+{
+ aweather_gui_gl_flush(gui);
+ return FALSE;
+}
+
+/*****************
+ * 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_new(2, G_TYPE_STRING, G_TYPE_STRING);
+ 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);
+ }
+ }
+
+ GtkBuilder *builder = aweather_gui_get_builder(gui);
+ GtkWidget *combo = GTK_WIDGET(gtk_builder_get_object(builder, "site"));
+ GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+ gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
+ gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
+ gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
+ gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
+ combo_sensitive, NULL, NULL);
+
+ g_signal_connect(combo, "changed", G_CALLBACK(on_site_changed), gui);
+}
+
+static void time_setup(AWeatherGui *gui)
+{
+ GtkBuilder *builder = aweather_gui_get_builder(gui);
+ GtkWidget *time = GTK_WIDGET(gtk_builder_get_object(builder, "time"));
+ GtkCellRenderer *rend = gtk_cell_renderer_text_new();
+ GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
+ "Time", rend, 0, "text", NULL);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(time), col);
+
+ GtkTreeStore *store = gtk_tree_store_new(1, G_TYPE_STRING);
+ gtk_tree_view_set_model(GTK_TREE_VIEW(time), GTK_TREE_MODEL(store));
+
+ g_signal_connect(time, "row-activated", G_CALLBACK(on_time_changed), gui);
+}
+
+gboolean opengl_setup(AWeatherGui *gui)
+{
+ GtkDrawingArea *drawing = aweather_gui_get_drawing(gui);
+
+ 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 */
+ g_signal_connect (drawing, "configure-event", G_CALLBACK(configure_start), gui);
+ g_signal_connect_after(drawing, "configure-event", G_CALLBACK(configure_end), gui);
+ g_signal_connect_after(drawing, "expose-event", G_CALLBACK(expose_end), gui);
+ return TRUE;
+}
+
/****************
* GObject code *
/* Constructor / destructors */
static void aweather_gui_init(AWeatherGui *gui)
{
- g_message("aweather_gui_init");
+ //g_message("aweather_gui_init");
/* Default values */
gui->view = NULL;
gui->builder = NULL;
static GObject *aweather_gui_constructor(GType gtype, guint n_properties,
GObjectConstructParam *properties)
{
- g_message("aweather_gui_constructor");
+ //g_message("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)
{
- g_message("aweather_gui_dispose");
+ //g_message("aweather_gui_dispose");
AWeatherGui *gui = AWEATHER_GUI(gobject);
g_object_unref(gui->view );
g_object_unref(gui->builder);
static void aweather_gui_finalize(GObject *gobject)
{
- g_message("aweather_gui_finalize");
+ //g_message("aweather_gui_finalize");
G_OBJECT_CLASS(aweather_gui_parent_class)->finalize(gobject);
}
static void aweather_gui_class_init(AWeatherGuiClass *klass)
{
- g_message("aweather_gui_class_init");
+ //g_message("aweather_gui_class_init");
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
gobject_class->constructor = aweather_gui_constructor;
gobject_class->dispose = aweather_gui_dispose;
/* Methods */
AWeatherGui *aweather_gui_new()
{
- g_message("aweather_gui_new");
+ //g_message("aweather_gui_new");
GError *error = NULL;
AWeatherGui *gui = g_object_new(AWEATHER_TYPE_GUI, NULL);
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);
+
+ /* Load components */
+ site_setup(gui);
+ time_setup(gui);
+ opengl_setup(gui);
return gui;
}
AWeatherView *aweather_gui_get_view(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->view;
}
GtkBuilder *aweather_gui_get_builder(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->builder;
}
GtkWindow *aweather_gui_get_window(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->window;
}
GtkNotebook *aweather_gui_get_tabs(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->tabs;
}
GtkDrawingArea *aweather_gui_get_drawing(AWeatherGui *gui)
{
+ g_assert(AWEATHER_IS_GUI(gui));
return gui->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 = aweather_gui_get_drawing(gui);
+ 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);
}
+//void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin);
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