/*
- * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
+ * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
*
* 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
*/
#include <config.h>
+#include <math.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
/* Constants */
enum {
SIG_TIME_CHANGED,
- SIG_SITE_CHANGED,
SIG_LOCATION_CHANGED,
SIG_ROTATION_CHANGED,
SIG_REFRESH,
g_signal_emit(self, signals[SIG_TIME_CHANGED], 0,
self->time);
}
-static void _gis_viewer_emit_site_changed(GisViewer *self)
-{
- g_signal_emit(self, signals[SIG_SITE_CHANGED], 0,
- self->site);
-}
static void _gis_viewer_emit_refresh(GisViewer *self)
{
g_signal_emit(self, signals[SIG_REFRESH], 0);
/*************
* Callbacks *
*************/
-static gboolean on_button_press(GisViewer *self, GdkEventButton *event, gpointer _)
-{
- g_debug("GisViewer: on_button_press - Grabbing focus");
- gtk_widget_grab_focus(GTK_WIDGET(self));
- return TRUE;
-}
static gboolean on_key_press(GisViewer *self, GdkEventKey *event, gpointer _)
{
g_debug("GisViewer: on_key_press - key=%x, state=%x, plus=%x",
else if (kv == GDK_L) gis_viewer_rotate(self, 0, 0, 2);
return FALSE;
}
+
+enum {
+ GIS_DRAG_NONE,
+ GIS_DRAG_PAN,
+ GIS_DRAG_ZOOM,
+ GIS_DRAG_TILT,
+};
+
+static gboolean on_button_press(GisViewer *self, GdkEventButton *event, gpointer _)
+{
+ g_debug("GisViewer: on_button_press - %d", event->button);
+ gtk_widget_grab_focus(GTK_WIDGET(self));
+ switch (event->button) {
+ case 1: self->drag_mode = GIS_DRAG_PAN; break;
+ case 2: self->drag_mode = GIS_DRAG_ZOOM; break;
+ case 3: self->drag_mode = GIS_DRAG_TILT; break;
+ defualt: self->drag_mode = GIS_DRAG_NONE; break;
+ }
+ self->drag_x = event->x;
+ self->drag_y = event->y;
+ return FALSE;
+}
+
+static gboolean on_button_release(GisViewer *self, GdkEventButton *event, gpointer _)
+{
+ g_debug("GisViewer: on_button_release");
+ self->drag_mode = GIS_DRAG_NONE;
+ return FALSE;
+}
+
+static gboolean on_motion_notify(GisViewer *self, GdkEventMotion *event, gpointer _)
+{
+ gdouble x_dist = self->drag_x - event->x;
+ gdouble y_dist = self->drag_y - event->y;
+ gdouble lat, lon, elev, scale;
+ gis_viewer_get_location(GIS_VIEWER(self), &lat, &lon, &elev);
+ scale = elev/EARTH_R/15;
+ switch (self->drag_mode) {
+ case GIS_DRAG_PAN:
+ gis_viewer_pan(self, -y_dist*scale, x_dist*scale, 0);
+ break;
+ case GIS_DRAG_ZOOM:
+ gis_viewer_zoom(self, pow(2, -y_dist/500));
+ break;
+ case GIS_DRAG_TILT:
+ gis_viewer_rotate(self, y_dist/10, 0, x_dist/10);
+ break;
+ }
+ self->drag_x = event->x;
+ self->drag_y = event->y;
+ return FALSE;
+}
+
static void on_view_changed(GisViewer *self,
gdouble _1, gdouble _2, gdouble _3)
{
/***********
* Methods *
***********/
+void gis_viewer_setup(GisViewer *self, GisPlugins *plugins, GisPrefs *prefs)
+{
+ self->plugins = plugins;
+ self->prefs = prefs;
+ self->offline = gis_prefs_get_boolean(prefs, "gis/offline", NULL);
+}
+
void gis_viewer_set_time(GisViewer *self, const char *time)
{
g_assert(GIS_IS_VIEWER(self));
_gis_viewer_emit_rotation_changed(self);
}
-/* To be deprecated, use {get,set}_location */
-void gis_viewer_set_site(GisViewer *self, const gchar *site)
-{
- g_assert(GIS_IS_VIEWER(self));
- g_debug("GisViewer: set_site");
- g_free(self->site);
- self->site = g_strdup(site);
- _gis_viewer_emit_site_changed(self);
-}
-
-gchar *gis_viewer_get_site(GisViewer *self)
-{
- g_assert(GIS_IS_VIEWER(self));
- g_debug("GisViewer: get_site - %s", self->site);
- return self->site;
-}
-
void gis_viewer_refresh(GisViewer *self)
{
g_debug("GisViewer: refresh");
{
g_assert(GIS_IS_VIEWER(self));
g_debug("GisViewer: set_offline - %d", offline);
+ gis_prefs_set_boolean(self->prefs, "gis/offline", offline);
self->offline = offline;
_gis_viewer_emit_offline(self);
}
klass->set_height_func(self, tile, height_func, user_data, update);
}
-void gis_viewer_render_tile(GisViewer *self, GisTile *tile)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->render_tile)
- g_warning("GisViewer: render_tile - Unimplemented");
- klass->render_tile(self, tile);
-}
-
-void gis_viewer_render_tiles(GisViewer *self, GisTile *root)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->render_tiles)
- g_warning("GisViewer: render_tiles - Unimplemented");
- klass->render_tiles(self, root);
-}
-
-void gis_viewer_begin(GisViewer *self)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->begin)
- g_warning("GisViewer: begin - Unimplemented");
- klass->begin(self);
-}
-
-void gis_viewer_end(GisViewer *self)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->end)
- g_warning("GisViewer: end - Unimplemented");
- klass->end(self);
-}
-
gpointer gis_viewer_add(GisViewer *self, GisObject *object,
gint level, gboolean sort)
{
return klass->add(self, object, level, sort);
}
-void gis_viewer_remove(GisViewer *self, gpointer ref)
+GisObject *gis_viewer_remove(GisViewer *self, gpointer ref)
{
GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
if (!klass->remove)
g_warning("GisViewer: remove - Unimplemented");
- klass->remove(self, ref);
+ return klass->remove(self, ref);
}
/****************
g_debug("GisViewer: init");
/* Default values */
self->time = g_strdup("");
- self->site = g_strdup("");
self->location[0] = 40;
self->location[1] = -100;
self->location[2] = 1.5*EARTH_R;
self->rotation[1] = 0;
self->rotation[2] = 0;
- g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
- g_signal_connect(self, "button-press-event", G_CALLBACK(on_button_press), NULL);
+ g_object_set(self, "can-focus", TRUE, NULL);
+ gtk_widget_add_events(GTK_WIDGET(self),
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_POINTER_MOTION_MASK |
+ GDK_KEY_PRESS_MASK);
- g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
- g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
+ g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
+
+ g_signal_connect(self, "button-press-event", G_CALLBACK(on_button_press), NULL);
+ g_signal_connect(self, "button-release-event", G_CALLBACK(on_button_release), NULL);
+ g_signal_connect(self, "motion-notify-event", G_CALLBACK(on_motion_notify), NULL);
+
+ g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
+ g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
}
static void gis_viewer_finalize(GObject *gobject)
{
g_debug("GisViewer: finalize");
GisViewer *self = GIS_VIEWER(gobject);
g_free(self->time);
- g_free(self->site);
G_OBJECT_CLASS(gis_viewer_parent_class)->finalize(gobject);
}
static void gis_viewer_class_init(GisViewerClass *klass)
G_TYPE_NONE,
1,
G_TYPE_STRING);
- signals[SIG_SITE_CHANGED] = g_signal_new(
- "site-changed",
- G_TYPE_FROM_CLASS(gobject_class),
- G_SIGNAL_RUN_LAST,
- 0,
- NULL,
- NULL,
- g_cclosure_marshal_VOID__STRING,
- G_TYPE_NONE,
- 1,
- G_TYPE_STRING);
signals[SIG_LOCATION_CHANGED] = g_signal_new(
"location-changed",
G_TYPE_FROM_CLASS(gobject_class),