static GimpCanvasItem *
gimp_brush_tool_get_outline (GimpPaintTool *paint_tool,
GimpDisplay *display,
gdouble x,
gdouble y)
{
GimpBrushTool *brush_tool = GIMP_BRUSH_TOOL (paint_tool);
GimpCanvasItem *item;
item = gimp_brush_tool_create_outline (brush_tool, display, x, y);
if (! item)
{
GimpBrushCore *brush_core = GIMP_BRUSH_CORE (paint_tool->core);
if (brush_core->main_brush && brush_core->dynamics)
{
/* if an outline was expected, but got scaled away by
* transform/dynamics, draw a circle in the "normal" size.
*/
GimpPaintOptions *options;
options = GIMP_PAINT_TOOL_GET_OPTIONS (brush_tool);
gimp_paint_tool_set_draw_fallback (paint_tool,
TRUE, options->brush_size);
}
}
return item;
}
static void
gimp_paint_tool_draw (GimpDrawTool *draw_tool)
{
if (! gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (draw_tool)))
{
GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (draw_tool);
GimpPaintCore *core = paint_tool->core;
GimpImage *image = gimp_display_get_image (draw_tool->display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpCanvasItem *outline = NULL;
gboolean line_drawn = FALSE;
gdouble last_x, last_y;
gdouble cur_x, cur_y;
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
last_x = core->last_coords.x + off_x;
last_y = core->last_coords.y + off_y;
cur_x = core->cur_coords.x + off_x;
cur_y = core->cur_coords.y + off_y;
if (paint_tool->draw_line &&
! gimp_tool_control_is_active (GIMP_TOOL (draw_tool)->control))
{
GimpCanvasGroup *group;
group = gimp_draw_tool_add_stroke_group (draw_tool);
gimp_draw_tool_push_group (draw_tool, group);
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_CIRCLE,
last_x, last_y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
gimp_draw_tool_add_line (draw_tool,
last_x, last_y,
cur_x, cur_y);
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_CIRCLE,
cur_x, cur_y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
gimp_draw_tool_pop_group (draw_tool);
line_drawn = TRUE;
}
gimp_paint_tool_set_draw_fallback (paint_tool, FALSE, 0.0);
if (paint_tool->draw_brush)
outline = gimp_paint_tool_get_outline (paint_tool,
draw_tool->display,
cur_x, cur_y);
if (outline)
{
gimp_draw_tool_add_item (draw_tool, outline);
g_object_unref (outline);
}
else if (paint_tool->draw_fallback)
{
/* Lets make a sensible fallback cursor
*
* Sensible cursor is
* * crossed to indicate draw point
* * reactive to options alterations
* * not a full circle that would be in the way
*/
gint size = (gint) paint_tool->fallback_size;
#define TICKMARK_ANGLE 48
#define ROTATION_ANGLE G_PI / 4
/* marks for indicating full size */
gimp_draw_tool_add_arc (draw_tool,
FALSE,
cur_x - (size / 2.0),
cur_y - (size / 2.0),
size, size,
ROTATION_ANGLE - (2.0 * G_PI) / (TICKMARK_ANGLE * 2),
(2.0 * G_PI) / TICKMARK_ANGLE);
gimp_draw_tool_add_arc (draw_tool,
FALSE,
cur_x - (size / 2.0),
cur_y - (size / 2.0),
size, size,
ROTATION_ANGLE + G_PI / 2 - (2.0 * G_PI) / (TICKMARK_ANGLE * 2),
(2.0 * G_PI) / TICKMARK_ANGLE);
gimp_draw_tool_add_arc (draw_tool,
FALSE,
cur_x - (size / 2.0),
cur_y - (size / 2.0),
size, size,
ROTATION_ANGLE + G_PI - (2.0 * G_PI) / (TICKMARK_ANGLE * 2),
(2.0 * G_PI) / TICKMARK_ANGLE);
gimp_draw_tool_add_arc (draw_tool,
FALSE,
cur_x - (size / 2.0),
cur_y - (size / 2.0),
size, size,
ROTATION_ANGLE + 3 * G_PI / 2 - (2.0 * G_PI) / (TICKMARK_ANGLE * 2),
(2.0 * G_PI) / TICKMARK_ANGLE);
}
else if (paint_tool->draw_circle)
{
gint size = (gint) paint_tool->circle_size;
/* draw an indicatory circle */
gimp_draw_tool_add_arc (draw_tool,
FALSE,
cur_x - (size / 2.0),
cur_y - (size / 2.0),
size, size,
0.0, (2.0 * G_PI));
}
if (! outline &&
! line_drawn &&
! paint_tool->show_cursor &&
! paint_tool->draw_circle)
{
/* don't leave the user without any indication and draw
* a fallback crosshair
*/
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_CROSSHAIR,
cur_x, cur_y,
GIMP_TOOL_HANDLE_SIZE_CROSSHAIR,
GIMP_TOOL_HANDLE_SIZE_CROSSHAIR,
GIMP_HANDLE_ANCHOR_CENTER);
}
}
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
}
