static void
gimp_brush_tool_set_brush (GimpBrushCore *brush_core,
GimpBrush *brush,
GimpBrushTool *brush_tool)
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (brush_tool));
if (GIMP_BRUSH_CORE_GET_CLASS (brush_core)->handles_transforming_brush)
{
GimpPaintCore *paint_core = GIMP_PAINT_CORE (brush_core);
gimp_brush_core_eval_transform_dynamics (brush_core,
NULL,
GIMP_PAINT_TOOL_GET_OPTIONS (brush_tool),
&paint_core->cur_coords);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (brush_tool));
}
static void
gimp_brush_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpPaintOptions *paint_options = GIMP_PAINT_TOOL_GET_OPTIONS (tool);
GimpDrawable *drawable;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state,
proximity, display);
drawable = gimp_image_get_active_drawable (gimp_display_get_image (display));
if (! gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)) &&
drawable && proximity)
{
GimpContext *context = GIMP_CONTEXT (paint_options);
GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
GimpBrushCore *brush_core = GIMP_BRUSH_CORE (paint_tool->core);
gimp_brush_core_set_brush (brush_core,
gimp_context_get_brush (context));
gimp_brush_core_set_dynamics (brush_core,
gimp_context_get_dynamics (context));
if (GIMP_BRUSH_CORE_GET_CLASS (brush_core)->handles_transforming_brush)
{
gimp_brush_core_eval_transform_dynamics (brush_core,
drawable,
paint_options,
coords);
}
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
void
gimp_source_core_motion (GimpSourceCore *source_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
GimpSymmetry *sym)
{
GimpPaintCore *paint_core = GIMP_PAINT_CORE (source_core);
GimpSourceOptions *options = GIMP_SOURCE_OPTIONS (paint_options);
GimpDynamics *dynamics = GIMP_BRUSH_CORE (paint_core)->dynamics;
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
GimpPickable *src_pickable = NULL;
GeglBuffer *src_buffer = NULL;
GeglRectangle src_rect;
gint base_src_offset_x;
gint base_src_offset_y;
gint src_offset_x;
gint src_offset_y;
GeglBuffer *paint_buffer;
gint paint_buffer_x;
gint paint_buffer_y;
gint paint_area_offset_x;
gint paint_area_offset_y;
gint paint_area_width;
gint paint_area_height;
gdouble fade_point;
gdouble opacity;
GeglNode *op;
GimpCoords *origin;
GimpCoords *coords;
gint n_strokes;
gint i;
fade_point = gimp_paint_options_get_fade (paint_options, image,
paint_core->pixel_dist);
origin = gimp_symmetry_get_origin (sym);
/* Some settings are based on the original stroke. */
opacity = gimp_dynamics_get_linear_value (dynamics,
GIMP_DYNAMICS_OUTPUT_OPACITY,
origin,
paint_options,
fade_point);
if (opacity == 0.0)
return;
base_src_offset_x = source_core->offset_x;
base_src_offset_y = source_core->offset_y;
if (gimp_source_core_use_source (source_core, options))
{
src_pickable = GIMP_PICKABLE (source_core->src_drawable);
if (options->sample_merged)
{
GimpImage *src_image = gimp_pickable_get_image (src_pickable);
gint off_x, off_y;
src_pickable = GIMP_PICKABLE (src_image);
gimp_item_get_offset (GIMP_ITEM (source_core->src_drawable),
&off_x, &off_y);
base_src_offset_x += off_x;
base_src_offset_y += off_y;
}
gimp_pickable_flush (src_pickable);
}
gimp_brush_core_eval_transform_dynamics (GIMP_BRUSH_CORE (paint_core),
drawable,
paint_options,
origin);
n_strokes = gimp_symmetry_get_size (sym);
for (i = 0; i < n_strokes; i++)
{
coords = gimp_symmetry_get_coords (sym, i);
paint_buffer = gimp_paint_core_get_paint_buffer (paint_core, drawable,
paint_options, coords,
&paint_buffer_x,
&paint_buffer_y,
NULL, NULL);
if (! paint_buffer)
continue;
paint_area_offset_x = 0;
paint_area_offset_y = 0;
paint_area_width = gegl_buffer_get_width (paint_buffer);
paint_area_height = gegl_buffer_get_height (paint_buffer);
src_offset_x = base_src_offset_x;
src_offset_y = base_src_offset_y;
if (gimp_source_core_use_source (source_core, options))
{
/* When using a source, use the same for every stroke. */
src_offset_x = src_offset_x - coords->x + origin->x;
src_offset_y = src_offset_y - coords->y + origin->y;
src_buffer =
GIMP_SOURCE_CORE_GET_CLASS (source_core)->get_source (source_core,
drawable,
paint_options,
src_pickable,
src_offset_x,
src_offset_y,
paint_buffer,
paint_buffer_x,
paint_buffer_y,
&paint_area_offset_x,
&paint_area_offset_y,
&paint_area_width,
&paint_area_height,
&src_rect);
if (! src_buffer)
continue;
}
/* Set the paint buffer to transparent */
gegl_buffer_clear (paint_buffer, NULL);
op = gimp_symmetry_get_operation (sym, i,
gegl_buffer_get_width (paint_buffer),
gegl_buffer_get_height (paint_buffer));
GIMP_SOURCE_CORE_GET_CLASS (source_core)->motion (source_core,
drawable,
paint_options,
coords,
op,
opacity,
src_pickable,
src_buffer,
&src_rect,
src_offset_x,
src_offset_y,
paint_buffer,
paint_buffer_x,
paint_buffer_y,
paint_area_offset_x,
paint_area_offset_y,
paint_area_width,
paint_area_height);
if (src_buffer)
g_object_unref (src_buffer);
}
}
