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plug-ins: separate preview computation from drawing in map-object

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This commit is contained in:
Michael Natterer
2011-02-13 14:12:08 +01:00
parent 5173b8559c
commit 9912e3f4ee
3 changed files with 60 additions and 41 deletions
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60
plug-ins/map-object/map-object-preview.c
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@ -32,8 +32,14 @@ static BackBuffer backbuf = { 0, 0, 0, 0, NULL };
/* Protos */
/* ====== */
static void draw_light_marker (gint xpos,
gint ypos);
static void compute_preview (gint x,
gint y,
gint w,
gint h,
gint pw,
gint ph);
static void draw_light_marker (gint xpos,
gint ypos);
static void clear_light_marker (void);
/**************************************************************/
@ -41,7 +47,7 @@ static void clear_light_marker (void);
/* dimensions (w,h), placing the result in preview_RGB_data. */
/**************************************************************/
void
static void
compute_preview (gint x,
gint y,
gint w,
@ -330,7 +336,32 @@ update_light (gint xpos,
/******************************************************************/
void
draw_preview_image (gint docompute)
compute_preview_image (void)
{
GdkDisplay *display = gtk_widget_get_display (previewarea);
GdkCursor *cursor;
gint startx, starty, pw, ph;
pw = PREVIEW_WIDTH * mapvals.zoom;
ph = PREVIEW_HEIGHT * mapvals.zoom;
startx = (PREVIEW_WIDTH - pw) / 2;
starty = (PREVIEW_HEIGHT - ph) / 2;
cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
gdk_cursor_unref (cursor);
compute_preview (0, 0, width - 1, height - 1, pw, ph);
cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
gdk_window_set_cursor(gtk_widget_get_window (previewarea), cursor);
gdk_cursor_unref (cursor);
clear_light_marker ();
}
void
draw_preview_image (void)
{
gint startx, starty, pw, ph;
GdkColor color;
@ -348,27 +379,6 @@ draw_preview_image (gint docompute)
startx = (PREVIEW_WIDTH - pw) / 2;
starty = (PREVIEW_HEIGHT - ph) / 2;
if (docompute == TRUE)
{
GdkDisplay *display = gtk_widget_get_display (previewarea);
GdkCursor *cursor;
cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
gdk_cursor_unref (cursor);
compute_preview (0, 0, width - 1, height - 1, pw, ph);
cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
gdk_window_set_cursor(gtk_widget_get_window (previewarea), cursor);
gdk_cursor_unref (cursor);
clear_light_marker ();
}
if (pw != PREVIEW_WIDTH || ph != PREVIEW_HEIGHT)
gdk_window_clear (gtk_widget_get_window (previewarea));
cairo_set_source_surface (cr, preview_surface, startx, starty);
cairo_rectangle (cr, startx, starty, pw, ph);
cairo_clip (cr);