VikDEMLayer *dem_layer_create ( VikViewport *vp )
{
VikDEMLayer *vdl = dem_layer_new ( vp );
gint i;
if ( vp ) {
/* TODO: share GCS between layers */
for ( i = 0; i < DEM_N_HEIGHT_COLORS; i++ ) {
if ( i > 0 )
vdl->gcs[i] = vik_viewport_new_gc ( vp, dem_height_colors[i], UNUSED_LINE_THICKNESS );
}
for ( i = 0; i < DEM_N_GRADIENT_COLORS; i++ )
vdl->gcsgradient[i] = vik_viewport_new_gc ( vp, dem_gradient_colors[i], UNUSED_LINE_THICKNESS );
}
return vdl;
}
static VikDEMLayer *dem_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp )
{
VikDEMLayer *rv = dem_layer_new ( vvp );
gint i;
/* TODO: share GCS between layers */
for ( i = 0; i < DEM_N_HEIGHT_COLORS; i++ ) {
if ( i == 0 )
rv->gcs[i] = vik_viewport_new_gc_from_color ( vvp, &(rv->color), UNUSED_LINE_THICKNESS );
else
rv->gcs[i] = vik_viewport_new_gc ( vvp, dem_height_colors[i], UNUSED_LINE_THICKNESS );
}
for ( i = 0; i < DEM_N_GRADIENT_COLORS; i++ )
rv->gcsgradient[i] = vik_viewport_new_gc ( vvp, dem_gradient_colors[i], UNUSED_LINE_THICKNESS );
vik_layer_unmarshall_params ( VIK_LAYER(rv), data, len, vvp );
return rv;
}
gboolean vik_viewport_configure ( VikViewport *vvp )
{
g_return_val_if_fail ( vvp != NULL, TRUE );
vvp->width = GTK_WIDGET(vvp)->allocation.width;
vvp->height = GTK_WIDGET(vvp)->allocation.height;
vvp->width_2 = vvp->width/2;
vvp->height_2 = vvp->height/2;
if ( vvp->scr_buffer )
g_object_unref ( G_OBJECT ( vvp->scr_buffer ) );
vvp->scr_buffer = gdk_pixmap_new ( gtk_widget_get_window(GTK_WIDGET(vvp)), vvp->width, vvp->height, -1 );
/* TODO trigger: only if enabled! */
if ( vvp->snapshot_buffer )
g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
vvp->snapshot_buffer = gdk_pixmap_new ( gtk_widget_get_window(GTK_WIDGET(vvp)), vvp->width, vvp->height, -1 );
/* TODO trigger */
/* this is down here so it can get a GC (necessary?) */
if ( !vvp->background_gc )
{
vvp->background_gc = vik_viewport_new_gc ( vvp, DEFAULT_BACKGROUND_COLOR, 1 );
vik_viewport_set_background_color ( vvp, DEFAULT_BACKGROUND_COLOR );
}
if ( ! vvp->highlight_gc )
{
vvp->highlight_gc = vik_viewport_new_gc ( vvp, DEFAULT_HIGHLIGHT_COLOR, 1 );
vik_viewport_set_highlight_color ( vvp, DEFAULT_HIGHLIGHT_COLOR );
}
if ( !vvp->scale_bg_gc) {
vvp->scale_bg_gc = vik_viewport_new_gc(vvp, "grey", 3);
}
return FALSE;
}
static VikDEMLayer *dem_layer_new ( VikViewport *vvp )
{
VikDEMLayer *vdl = VIK_DEM_LAYER ( g_object_new ( VIK_DEM_LAYER_TYPE, NULL ) );
vik_layer_set_type ( VIK_LAYER(vdl), VIK_LAYER_DEM );
vdl->files = NULL;
vdl->gcs = g_malloc(sizeof(GdkGC *)*DEM_N_HEIGHT_COLORS);
vdl->gcsgradient = g_malloc(sizeof(GdkGC *)*DEM_N_GRADIENT_COLORS);
/* make new gcs only if we need it (copy layer -> use old) */
// Ensure the base GC is available so the default colour can be applied
if ( vvp ) vdl->gcs[0] = vik_viewport_new_gc ( vvp, "#0000FF", 1 );
vik_layer_set_defaults ( VIK_LAYER(vdl), vvp );
return vdl;
}
static void datasource_gc_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data )
{
datasource_gc_widgets_t *widgets = (datasource_gc_widgets_t *)user_data;
GtkWidget *num_label, *center_label, *miles_radius_label;
struct LatLon ll;
gchar *s_ll;
num_label = gtk_label_new (_("Number geocaches:"));
widgets->num_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 20, 1, 1000, 10, 20, 0 )), 10, 0 );
center_label = gtk_label_new (_("Centered around:"));
widgets->center_entry = gtk_entry_new();
miles_radius_label = gtk_label_new ("Miles Radius:");
widgets->miles_radius_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 5, 1, 1000, 1, 20, 0 )), 25, 1 );
vik_coord_to_latlon ( vik_viewport_get_center(vvp), &ll );
s_ll = g_strdup_printf("%f,%f", ll.lat, ll.lon );
gtk_entry_set_text ( GTK_ENTRY(widgets->center_entry), s_ll );
g_free ( s_ll );
widgets->vvp = vvp;
widgets->circle_gc = vik_viewport_new_gc ( vvp, "#000000", 3 );
gdk_gc_set_function ( widgets->circle_gc, GDK_INVERT );
widgets->circle_onscreen = TRUE;
datasource_gc_draw_circle ( widgets );
g_signal_connect_swapped ( G_OBJECT(widgets->center_entry), "changed", G_CALLBACK(datasource_gc_draw_circle), widgets );
g_signal_connect_swapped ( G_OBJECT(widgets->miles_radius_spin), "value-changed", G_CALLBACK(datasource_gc_draw_circle), widgets );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), num_label, FALSE, FALSE, 5 );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->num_spin, FALSE, FALSE, 5 );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), center_label, FALSE, FALSE, 5 );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->center_entry, FALSE, FALSE, 5 );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), miles_radius_label, FALSE, FALSE, 5 );
gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->miles_radius_spin, FALSE, FALSE, 5 );
gtk_widget_show_all(dialog);
}