1 files changed, 107 insertions, 0 deletions
diff --git a/saedit/drawfuncs.c b/saedit/drawfuncs.c
new file mode 100644
index 0000000..97a769e
--- /dev/null
+++ b/saedit/drawfuncs.c
@@ -0,0 +1,107 @@
+#include "interactor.h"
+#include "drawfuncs.h"
+#include "spritedrawingarea.h"
+#include "config.h"
+
+void
+interactor_sprite_layer_draw_func (
+	SDALayer *layer,
+	cairo_t *cr,
+	gpointer user_data
+) {
+	const GdkPixbuf *sprite;
+	gint offsetX, offsetY;
+	Interactor *interactor = *((Interactor **) user_data);
+
+	if (interactor == NULL)
+		return;
+
+	sprite = interactor_get_sprite (interactor);
+
+	if (sprite == NULL)
+		return;
+
+	interactor_get_offset (interactor, &offsetX, &offsetY);
+
+	gdk_cairo_set_source_pixbuf (
+		cr, sprite,
+		offsetX,
+		offsetY + config_keys_get_tile_size () / 2
+	);
+	cairo_pattern_set_filter (
+		cairo_get_source (cr),
+		CAIRO_FILTER_NEAREST
+	);
+	cairo_paint (cr);
+}
+
+void
+background_layer_draw_func (
+	SDALayer *layer,
+	cairo_t *cr,
+	gpointer user_data
+) {
+	GdkRGBA *rgba = (GdkRGBA *) user_data;
+
+	gdk_cairo_set_source_rgba (cr, rgba);
+
+	cairo_rectangle (
+		cr,
+		-SPRITE_DRAWING_AREA_FIELD_SIZE,
+		-SPRITE_DRAWING_AREA_FIELD_SIZE,
+		2 * SPRITE_DRAWING_AREA_FIELD_SIZE,
+		2 * SPRITE_DRAWING_AREA_FIELD_SIZE
+	);
+	cairo_fill (cr);
+}
+
+void
+tile_grid_layer_draw_func (
+	SDALayer *layer,
+	cairo_t *cr,
+	gpointer user_data
+) {
+	gint x;
+	gint field_size = SPRITE_DRAWING_AREA_FIELD_SIZE;
+	gint tile_size = config_keys_get_tile_size ();
+
+	cairo_set_line_width (cr, 1.0);
+	cairo_set_operator (cr, CAIRO_OPERATOR_XOR);
+	cairo_set_source_rgba (cr, 0, 0, 0, 0.5);
+	cairo_translate (cr, 0.5, 0.5);
+
+	x = -tile_size / 2;
+	while (x >= -field_size)
+		x -= tile_size;
+
+	for (; x <= field_size; x += tile_size) {
+		cairo_move_to (cr, x, -field_size);
+		cairo_line_to (cr, x,  field_size);
+		cairo_move_to (cr, -field_size, x);
+		cairo_line_to (cr,  field_size, x);
+	}
+
+	cairo_stroke (cr);
+}
+
+void
+pixel_grid_layer_draw_func (
+	SDALayer *layer,
+	cairo_t *cr,
+	gpointer user_data
+) {
+	gint x;
+	gint field_size = SPRITE_DRAWING_AREA_FIELD_SIZE;
+
+	cairo_set_line_width (cr, 0.1);
+	cairo_set_source_rgb (cr, 0, 0, 0);
+	
+	for (x = -field_size; x <= field_size; ++x) {
+		cairo_move_to (cr, x, -field_size);
+		cairo_line_to (cr, x,  field_size);
+		cairo_move_to (cr, -field_size, x);
+		cairo_line_to (cr,  field_size, x);
+	}
+
+	cairo_stroke (cr);
+}