/**
* gimp_draw_tool_add_corner:
* @draw_tool: the #GimpDrawTool
* @highlight:
* @put_outside: whether to put the handles on the outside of the rectangle
* @x1:
* @y1:
* @x2:
* @y2:
* @width: corner width
* @height: corner height
* @anchor: which corner to draw
*
* This function takes image space coordinates and transforms them to
* screen window coordinates. It draws a corner into an already drawn
* rectangle outline, taking care of not drawing over an already drawn line.
**/
GimpCanvasItem *
gimp_draw_tool_add_corner (GimpDrawTool *draw_tool,
gboolean highlight,
gboolean put_outside,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gint width,
gint height,
GimpHandleAnchor anchor)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_corner_new (gimp_display_get_shell (draw_tool->display),
x1, y1, x2 - x1, y2 - y1,
anchor, width, height, put_outside);
gimp_canvas_item_set_highlight (item, highlight);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_arc (GimpDrawTool *draw_tool,
gboolean filled,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
gdouble start_angle,
gdouble slice_angle)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_arc_new (gimp_display_get_shell (draw_tool->display),
x + width / 2.0,
y + height / 2.0,
width / 2.0,
height / 2.0,
start_angle,
slice_angle,
filled);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_transform_preview (GimpDrawTool *draw_tool,
GimpDrawable *drawable,
const GimpMatrix3 *transform,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gboolean perspective,
gdouble opacity)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (transform != NULL, NULL);
item = gimp_canvas_transform_preview_new (gimp_display_get_shell (draw_tool->display),
drawable, transform,
x1, y1, x2, y2,
perspective, opacity);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasGroup *
gimp_draw_tool_add_fill_group (GimpDrawTool *draw_tool)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_group_new (gimp_display_get_shell (draw_tool->display));
gimp_canvas_group_set_group_filling (GIMP_CANVAS_GROUP (item), TRUE);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return GIMP_CANVAS_GROUP (item);
}
GimpCanvasItem *
gimp_draw_tool_add_path (GimpDrawTool *draw_tool,
const GimpBezierDesc *desc)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
g_return_val_if_fail (desc != NULL, NULL);
item = gimp_canvas_path_new (gimp_display_get_shell (draw_tool->display),
desc, FALSE, FALSE);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_text_cursor (GimpDrawTool *draw_tool,
PangoRectangle *cursor,
gboolean overwrite)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_text_cursor_new (gimp_display_get_shell (draw_tool->display),
cursor, overwrite);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
/**
* gimp_draw_tool_add_sample_point:
* @draw_tool: the #GimpDrawTool
* @x: X position of the sample point
* @y: Y position of the sample point
* @index: Index of the sample point
*
* This function draws a sample point
**/
GimpCanvasItem *
gimp_draw_tool_add_sample_point (GimpDrawTool *draw_tool,
gint x,
gint y,
gint index)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_sample_point_new (gimp_display_get_shell (draw_tool->display),
x, y, index, TRUE);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
/**
* gimp_draw_tool_add_guide:
* @draw_tool: the #GimpDrawTool
* @orientation: the orientation of the guide line
* @position: the position of the guide line in image coordinates
*
* This function draws a guide line across the canvas.
**/
GimpCanvasItem *
gimp_draw_tool_add_guide (GimpDrawTool *draw_tool,
GimpOrientationType orientation,
gint position,
gboolean guide_style)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_guide_new (gimp_display_get_shell (draw_tool->display),
orientation, position, guide_style);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
/**
* gimp_draw_tool_add_line:
* @draw_tool: the #GimpDrawTool
* @x1: start point X in image coordinates
* @y1: start point Y in image coordinates
* @x2: end point X in image coordinates
* @y2: end point Y in image coordinates
*
* This function takes image space coordinates and transforms them to
* screen window coordinates, then draws a line between the resulting
* coordindates.
**/
GimpCanvasItem *
gimp_draw_tool_add_line (GimpDrawTool *draw_tool,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_line_new (gimp_display_get_shell (draw_tool->display),
x1, y1, x2, y2);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_rectangle_guides (GimpDrawTool *draw_tool,
GimpGuidesType type,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_rectangle_guides_new (gimp_display_get_shell (draw_tool->display),
x, y, width, height, type, 4);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_strokes (GimpDrawTool *draw_tool,
const GimpCoords *points,
gint n_points,
gboolean filled)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
if (points == NULL || n_points < 2)
return NULL;
item = gimp_canvas_polygon_new_from_coords (gimp_display_get_shell (draw_tool->display),
points, n_points, filled);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_handle (GimpDrawTool *draw_tool,
GimpHandleType type,
gdouble x,
gdouble y,
gint width,
gint height,
GimpHandleAnchor anchor)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
item = gimp_canvas_handle_new (gimp_display_get_shell (draw_tool->display),
type, anchor, x, y, width, height);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_pen (GimpDrawTool *draw_tool,
const GimpVector2 *points,
gint n_points,
GimpContext *context,
GimpActiveColor color,
gint width)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
if (points == NULL || n_points < 2)
return NULL;
item = gimp_canvas_pen_new (gimp_display_get_shell (draw_tool->display),
points, n_points, context, color, width);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
/**
* gimp_draw_tool_add_boundary:
* @draw_tool: a #GimpDrawTool
* @bound_segs: the sorted brush outline
* @n_bound_segs: the number of segments in @bound_segs
* @matrix: transform matrix for the boundary
* @offset_x: x offset
* @offset_y: y offset
*
* Draw the boundary of the brush that @draw_tool uses. The boundary
* should be sorted with sort_boundary(), and @n_bound_segs should
* include the sentinel segments inserted by sort_boundary() that
* indicate the end of connected segment sequences (groups) .
*/
GimpCanvasItem *
gimp_draw_tool_add_boundary (GimpDrawTool *draw_tool,
const BoundSeg *bound_segs,
gint n_bound_segs,
GimpMatrix3 *transform,
gdouble offset_x,
gdouble offset_y)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
g_return_val_if_fail (n_bound_segs > 0, NULL);
g_return_val_if_fail (bound_segs != NULL, NULL);
item = gimp_canvas_boundary_new (gimp_display_get_shell (draw_tool->display),
bound_segs, n_bound_segs,
transform,
offset_x, offset_y);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
GimpCanvasItem *
gimp_draw_tool_add_transform_guides (GimpDrawTool *draw_tool,
const GimpMatrix3 *transform,
GimpGuidesType type,
gint n_guides,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
g_return_val_if_fail (transform != NULL, NULL);
item = gimp_canvas_transform_guides_new (gimp_display_get_shell (draw_tool->display),
transform, x1, y1, x2, y2,
type, n_guides);
gimp_draw_tool_add_item (draw_tool, item);
g_object_unref (item);
return item;
}
static void
gimp_perspective_clone_tool_draw (GimpDrawTool *draw_tool)
{
GimpTool *tool = GIMP_TOOL (draw_tool);
GimpPerspectiveCloneTool *clone_tool = GIMP_PERSPECTIVE_CLONE_TOOL (draw_tool);
GimpPerspectiveClone *clone = GIMP_PERSPECTIVE_CLONE (GIMP_PAINT_TOOL (tool)->core);
GimpSourceCore *source_core = GIMP_SOURCE_CORE (clone);
GimpPerspectiveCloneOptions *options;
options = GIMP_PERSPECTIVE_CLONE_TOOL_GET_OPTIONS (tool);
if (options->clone_mode == GIMP_PERSPECTIVE_CLONE_MODE_ADJUST)
{
if (clone_tool->widget)
{
GimpCanvasItem *item = gimp_tool_widget_get_item (clone_tool->widget);
gimp_draw_tool_add_item (draw_tool, item);
}
}
else
{
GimpCanvasGroup *stroke_group;
stroke_group = gimp_draw_tool_add_stroke_group (draw_tool);
/* draw the bounding box */
gimp_draw_tool_push_group (draw_tool, stroke_group);
gimp_draw_tool_add_line (draw_tool,
clone_tool->trans_info[X0],
clone_tool->trans_info[Y0],
clone_tool->trans_info[X1],
clone_tool->trans_info[Y1]);
gimp_draw_tool_add_line (draw_tool,
clone_tool->trans_info[X1],
clone_tool->trans_info[Y1],
clone_tool->trans_info[X3],
clone_tool->trans_info[Y3]);
gimp_draw_tool_add_line (draw_tool,
clone_tool->trans_info[X2],
clone_tool->trans_info[Y2],
clone_tool->trans_info[X3],
clone_tool->trans_info[Y3]);
gimp_draw_tool_add_line (draw_tool,
clone_tool->trans_info[X2],
clone_tool->trans_info[Y2],
clone_tool->trans_info[X0],
clone_tool->trans_info[Y0]);
gimp_draw_tool_pop_group (draw_tool);
}
if (source_core->src_drawable && clone_tool->src_display)
{
GimpDisplay *tmp_display;
tmp_display = draw_tool->display;
draw_tool->display = clone_tool->src_display;
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_CROSS,
clone_tool->src_x + 0.5,
clone_tool->src_y + 0.5,
GIMP_TOOL_HANDLE_SIZE_CROSS,
GIMP_TOOL_HANDLE_SIZE_CROSS,
GIMP_HANDLE_ANCHOR_CENTER);
draw_tool->display = tmp_display;
}
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
}
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);
}
