/* 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 }