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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpviewrendererbrush.c
* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpbrushpipe.h"
#include "core/gimpbrushgenerated.h"
#include "core/gimptempbuf.h"
#include "gimpviewrendererbrush.h"
static void gimp_view_renderer_brush_finalize (GObject *object);
static void gimp_view_renderer_brush_render (GimpViewRenderer *renderer,
GtkWidget *widget);
static void gimp_view_renderer_brush_draw (GimpViewRenderer *renderer,
GtkWidget *widget,
cairo_t *cr,
gint available_width,
gint available_height);
static gboolean gimp_view_renderer_brush_render_timeout (gpointer data);
G_DEFINE_TYPE (GimpViewRendererBrush, gimp_view_renderer_brush,
GIMP_TYPE_VIEW_RENDERER)
#define parent_class gimp_view_renderer_brush_parent_class
static void
gimp_view_renderer_brush_class_init (GimpViewRendererBrushClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpViewRendererClass *renderer_class = GIMP_VIEW_RENDERER_CLASS (klass);
object_class->finalize = gimp_view_renderer_brush_finalize;
renderer_class->render = gimp_view_renderer_brush_render;
renderer_class->draw = gimp_view_renderer_brush_draw;
}
static void
gimp_view_renderer_brush_init (GimpViewRendererBrush *renderer)
{
renderer->pipe_timeout_id = 0;
renderer->pipe_animation_index = 0;
}
static void
gimp_view_renderer_brush_finalize (GObject *object)
{
GimpViewRendererBrush *renderer = GIMP_VIEW_RENDERER_BRUSH (object);
if (renderer->pipe_timeout_id)
{
g_source_remove (renderer->pipe_timeout_id);
renderer->pipe_timeout_id = 0;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_view_renderer_brush_render (GimpViewRenderer *renderer,
GtkWidget *widget)
{
GimpViewRendererBrush *renderbrush = GIMP_VIEW_RENDERER_BRUSH (renderer);
GimpTempBuf *temp_buf;
gint temp_buf_x = 0;
gint temp_buf_y = 0;
gint temp_buf_width;
gint temp_buf_height;
if (renderbrush->pipe_timeout_id)
{
g_source_remove (renderbrush->pipe_timeout_id);
renderbrush->pipe_timeout_id = 0;
}
temp_buf = gimp_viewable_get_new_preview (renderer->viewable,
renderer->context,
renderer->width,
renderer->height);
temp_buf_width = gimp_temp_buf_get_width (temp_buf);
temp_buf_height = gimp_temp_buf_get_height (temp_buf);
if (temp_buf_width < renderer->width)
temp_buf_x = (renderer->width - temp_buf_width) / 2;
if (temp_buf_height < renderer->height)
temp_buf_y = (renderer->height - temp_buf_height) / 2;
if (renderer->is_popup)
{
gimp_view_renderer_render_temp_buf (renderer, widget, temp_buf,
temp_buf_x, temp_buf_y,
-1,
GIMP_VIEW_BG_WHITE,
GIMP_VIEW_BG_WHITE);
gimp_temp_buf_unref (temp_buf);
if (GIMP_IS_BRUSH_PIPE (renderer->viewable))
{
renderbrush->widget = widget;
renderbrush->pipe_animation_index = 0;
renderbrush->pipe_timeout_id =
g_timeout_add (300, gimp_view_renderer_brush_render_timeout,
renderbrush);
}
return;
}
gimp_view_renderer_render_temp_buf (renderer, widget, temp_buf,
temp_buf_x, temp_buf_y,
-1,
GIMP_VIEW_BG_WHITE,
GIMP_VIEW_BG_WHITE);
gimp_temp_buf_unref (temp_buf);
}
static gboolean
gimp_view_renderer_brush_render_timeout (gpointer data)
{
GimpViewRendererBrush *renderbrush = GIMP_VIEW_RENDERER_BRUSH (data);
GimpViewRenderer *renderer = GIMP_VIEW_RENDERER (data);
GimpBrushPipe *brush_pipe;
GimpBrush *brush;
GimpTempBuf *temp_buf;
gint temp_buf_x = 0;
gint temp_buf_y = 0;
gint temp_buf_width;
gint temp_buf_height;
if (! renderer->viewable)
{
renderbrush->pipe_timeout_id = 0;
renderbrush->pipe_animation_index = 0;
return FALSE;
}
brush_pipe = GIMP_BRUSH_PIPE (renderer->viewable);
renderbrush->pipe_animation_index++;
if (renderbrush->pipe_animation_index >= brush_pipe->n_brushes)
renderbrush->pipe_animation_index = 0;
brush =
GIMP_BRUSH (brush_pipe->brushes[renderbrush->pipe_animation_index]);
temp_buf = gimp_viewable_get_new_preview (GIMP_VIEWABLE (brush),
renderer->context,
renderer->width,
renderer->height);
temp_buf_width = gimp_temp_buf_get_width (temp_buf);
temp_buf_height = gimp_temp_buf_get_height (temp_buf);
if (temp_buf_width < renderer->width)
temp_buf_x = (renderer->width - temp_buf_width) / 2;
if (temp_buf_height < renderer->height)
temp_buf_y = (renderer->height - temp_buf_height) / 2;
gimp_view_renderer_render_temp_buf (renderer, renderbrush->widget, temp_buf,
temp_buf_x, temp_buf_y,
-1,
GIMP_VIEW_BG_WHITE,
GIMP_VIEW_BG_WHITE);
gimp_temp_buf_unref (temp_buf);
gimp_view_renderer_update (renderer);
return TRUE;
}
static void
gimp_view_renderer_brush_draw (GimpViewRenderer *renderer,
GtkWidget *widget,
cairo_t *cr,
gint available_width,
gint available_height)
{
GIMP_VIEW_RENDERER_CLASS (parent_class)->draw (renderer, widget, cr,
available_width,
available_height);
#define INDICATOR_WIDTH 7
#define INDICATOR_HEIGHT 7
if (renderer->width > 2 * INDICATOR_WIDTH &&
renderer->height > 2 * INDICATOR_HEIGHT)
{
gboolean pipe = GIMP_IS_BRUSH_PIPE (renderer->viewable);
gboolean generated = GIMP_IS_BRUSH_GENERATED (renderer->viewable);
gint brush_width;
gint brush_height;
if (generated || pipe)
{
cairo_move_to (cr, available_width, available_height);
cairo_rel_line_to (cr, - INDICATOR_WIDTH, 0);
cairo_rel_line_to (cr, INDICATOR_WIDTH, - INDICATOR_HEIGHT);
cairo_rel_line_to (cr, 0, INDICATOR_HEIGHT);
if (pipe)
cairo_set_source_rgb (cr, 1.0, 0.5, 0.5);
else
cairo_set_source_rgb (cr, 0.5, 0.6, 1.0);
cairo_fill (cr);
}
gimp_viewable_get_size (renderer->viewable, &brush_width, &brush_height);
if (renderer->width < brush_width || renderer->height < brush_height)
{
cairo_move_to (cr,
available_width - INDICATOR_WIDTH + 1,
available_height - INDICATOR_HEIGHT / 2.0);
cairo_rel_line_to (cr, INDICATOR_WIDTH - 2, 0);
cairo_move_to (cr,
available_width - INDICATOR_WIDTH / 2.0,
available_height - INDICATOR_HEIGHT + 1);
cairo_rel_line_to (cr, 0, INDICATOR_WIDTH - 2);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_set_line_width (cr, 1);
cairo_stroke (cr);
}
}
#undef INDICATOR_WIDTH
#undef INDICATOR_HEIGHT
}
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