#include <gtk/gtk.h>
#include <math.h>
-#include <stdio.h>
#include "coords.h"
#include "vikcoord.h"
gdouble google_calcy_fact;
gdouble google_calcx_rev_fact;
gdouble google_calcy_rev_fact;
+
+ /* trigger stuff */
+ gpointer trigger;
+ GdkPixmap *snapshot_buffer;
+ gboolean half_drawn;
};
static gdouble
vvp->scale_bg_gc = NULL;
vvp->draw_scale = TRUE;
vvp->draw_centermark = TRUE;
+
+ vvp->trigger = NULL;
+ vvp->snapshot_buffer = NULL;
+ vvp->half_drawn = FALSE;
+
g_signal_connect (G_OBJECT(vvp), "configure_event", G_CALLBACK(vik_viewport_configure), NULL);
+
+ GTK_WIDGET_SET_FLAGS(vvp, GTK_CAN_FOCUS); /* allow VVP to have focus -- enabling key events, etc */
}
GdkColor *vik_viewport_get_background_gdkcolor ( VikViewport *vvp )
if ( vvp->scr_buffer )
g_object_unref ( G_OBJECT ( vvp->scr_buffer ) );
vvp->scr_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
+
+ /* TODO trigger: only if this is enabled !!! */
+ if ( vvp->snapshot_buffer )
+ g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
+ vvp->snapshot_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
}
vvp->scr_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, 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(vvp)->window, vvp->width, vvp->height, -1 );
+ /* TODO trigger */
+
/* this is down here so it can get a GC (necessary?) */
if ( ! vvp->background_gc )
{
if ( vvp->scr_buffer )
g_object_unref ( G_OBJECT ( vvp->scr_buffer ) );
+ if ( vvp->snapshot_buffer )
+ g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
+
if ( vvp->alpha_pixbuf )
g_object_unref ( G_OBJECT ( vvp->alpha_pixbuf ) );
vvp->google_calcy_rev_fact = 1 / vvp->google_calcy_fact;
}
+/******** triggering *******/
+void vik_viewport_set_trigger ( VikViewport *vp, gpointer trigger )
+{
+ vp->trigger = trigger;
+}
+
+gpointer vik_viewport_get_trigger ( VikViewport *vp )
+{
+ return vp->trigger;
+}
+
+void vik_viewport_snapshot_save ( VikViewport *vp )
+{
+ gdk_draw_drawable ( vp->snapshot_buffer, vp->background_gc, vp->scr_buffer, 0, 0, 0, 0, -1, -1 );
+}
+
+void vik_viewport_snapshot_load ( VikViewport *vp )
+{
+ gdk_draw_drawable ( vp->scr_buffer, vp->background_gc, vp->snapshot_buffer, 0, 0, 0, 0, -1, -1 );
+}
+
+void vik_viewport_set_half_drawn(VikViewport *vp, gboolean half_drawn)
+{
+ vp->half_drawn = half_drawn;
+}
+
+gboolean vik_viewport_get_half_drawn( VikViewport *vp )
+{
+ return vp->half_drawn;
+}
+
const gchar *vik_viewport_get_drawmode_name(VikViewport *vv, VikViewportDrawMode mode)
{