X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Faweather-gui.c;h=320a14d59de224a17a8a36c9de2d45c5981ea44e;hp=99b950e2d5c383b380dfae8cb9a0302f7980d426;hb=93c853165104b5119e17be07e325f9097a5ebdb3;hpb=d527bfdb9682b1824e1c2df318a92291aaa48860 diff --git a/src/aweather-gui.c b/src/aweather-gui.c index 99b950e..320a14d 100644 --- a/src/aweather-gui.c +++ b/src/aweather-gui.c @@ -1,10 +1,253 @@ +/* + * Copyright (C) 2009 Andy Spencer + * + * 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 . + */ + #include #include #include #include +#include +#include +#include #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; + 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_location(view, site); +} + +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); +} + +static gboolean map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui) +{ + //g_message("map:map"); + AWeatherView *view = aweather_gui_get_view(gui); + aweather_view_set_location(view, "IND"); + + /* 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; +} + +static gboolean configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui) +{ + aweather_gui_gl_begin(gui); + + double width = da->allocation.width; + double height = da->allocation.height; + double dist = 500*1000; // 500 km + double cam = 300*1000; // 500 km + + glViewport(0, 0, width, height); + + /* 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, cam-20, cam+20); + + /* Camera position? */ + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -cam); + //glRotatef(-45, 1, 0, 0); + + aweather_gui_gl_end(gui); + return FALSE; +} + +static gboolean expose_begin(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui) +{ + aweather_gui_gl_begin(gui); + return FALSE; +} +static gboolean expose_end(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui) +{ + g_message("aweather:espose_end\n"); + aweather_gui_gl_end(gui); + aweather_gui_gl_flush(gui); + return FALSE; +} + +/* TODO: replace the code in these with `gtk_tree_model_find' utility */ +static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui) +{ + g_message("updating time widget"); + 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); + return; + } + } +} +static void update_location_widget(AWeatherView *view, char *location, AWeatherGui *gui) +{ + g_message("updating location widget to %s", location); + 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 (g_str_equal(text, location)) { + GtkTreePath *path = gtk_tree_model_get_path(model, &iter2); + 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_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); + } + } + + GtkWidget *combo = aweather_gui_get_widget(gui, "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); + AWeatherView *aview = aweather_gui_get_view(gui); + g_signal_connect(aview, "location-changed", G_CALLBACK(update_location_widget), gui); +} + +static void time_setup(AWeatherGui *gui) +{ + GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time")); + GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING)); + gtk_tree_view_set_model(tview, store); + + 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_signal_connect(tview, "row-activated", G_CALLBACK(on_time_changed), gui); + AWeatherView *aview = aweather_gui_get_view(gui); + g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui); +} + +gboolean 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 */ + g_signal_connect (drawing, "map-event", G_CALLBACK(map), gui); + g_signal_connect (drawing, "configure-event", G_CALLBACK(configure), gui); + g_signal_connect (drawing, "expose-event", G_CALLBACK(expose_begin), gui); + g_signal_connect_after(drawing, "expose-event", G_CALLBACK(expose_end), gui); + return TRUE; +} + /**************** * GObject code * @@ -14,26 +257,20 @@ G_DEFINE_TYPE(AWeatherGui, aweather_gui, G_TYPE_OBJECT); /* Constructor / destructors */ 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; + //g_message("aweather_gui_init"); } 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); @@ -45,13 +282,13 @@ static void aweather_gui_dispose (GObject *gobject) 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; @@ -61,7 +298,7 @@ static void aweather_gui_class_init(AWeatherGuiClass *klass) /* 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); @@ -74,41 +311,57 @@ AWeatherGui *aweather_gui_new() 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) +GtkWidget *aweather_gui_get_widget(AWeatherGui *gui, const gchar *name) { - return gui->window; + g_assert(AWEATHER_IS_GUI(gui)); + GObject *widget = gtk_builder_get_object(gui->builder, name); + g_assert(GTK_IS_WIDGET(widget)); + return GTK_WIDGET(widget); } -GtkNotebook *aweather_gui_get_tabs(AWeatherGui *gui) +void aweather_gui_gl_begin(AWeatherGui *gui) { - return gui->tabs; -} -GtkDrawingArea *aweather_gui_get_drawing(AWeatherGui *gui) -{ - return gui->drawing; -} + 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); } +//void aweather_gui_register_plugin(AWeatherGui *gui, AWeatherPlugin *plugin);