/* PIKA - Photo and Image Kooker Application * a rebranding of The GNU Image Manipulation Program (created with heckimp) * A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio * * Original copyright, applying to most contents (license remains unchanged): * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * pikaviewrendererbrush.c * Copyright (C) 2003 Michael Natterer * * 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 . */ #include "config.h" #include #include #include "widgets-types.h" #include "core/pikabrushpipe.h" #include "core/pikabrushgenerated.h" #include "core/pikatempbuf.h" #include "pikaviewrendererbrush.h" static void pika_view_renderer_brush_finalize (GObject *object); static void pika_view_renderer_brush_render (PikaViewRenderer *renderer, GtkWidget *widget); static void pika_view_renderer_brush_draw (PikaViewRenderer *renderer, GtkWidget *widget, cairo_t *cr, gint available_width, gint available_height); static gboolean pika_view_renderer_brush_render_timeout (gpointer data); G_DEFINE_TYPE (PikaViewRendererBrush, pika_view_renderer_brush, PIKA_TYPE_VIEW_RENDERER) #define parent_class pika_view_renderer_brush_parent_class static void pika_view_renderer_brush_class_init (PikaViewRendererBrushClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); PikaViewRendererClass *renderer_class = PIKA_VIEW_RENDERER_CLASS (klass); object_class->finalize = pika_view_renderer_brush_finalize; renderer_class->render = pika_view_renderer_brush_render; renderer_class->draw = pika_view_renderer_brush_draw; } static void pika_view_renderer_brush_init (PikaViewRendererBrush *renderer) { renderer->pipe_timeout_id = 0; renderer->pipe_animation_index = 0; } static void pika_view_renderer_brush_finalize (GObject *object) { PikaViewRendererBrush *renderer = PIKA_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 pika_view_renderer_brush_render (PikaViewRenderer *renderer, GtkWidget *widget) { PikaViewRendererBrush *renderbrush = PIKA_VIEW_RENDERER_BRUSH (renderer); PikaTempBuf *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 = pika_viewable_get_new_preview (renderer->viewable, renderer->context, renderer->width, renderer->height); temp_buf_width = pika_temp_buf_get_width (temp_buf); temp_buf_height = pika_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) { pika_view_renderer_render_temp_buf (renderer, widget, temp_buf, temp_buf_x, temp_buf_y, -1, PIKA_VIEW_BG_WHITE, PIKA_VIEW_BG_WHITE); pika_temp_buf_unref (temp_buf); if (PIKA_IS_BRUSH_PIPE (renderer->viewable)) { renderbrush->widget = widget; renderbrush->pipe_animation_index = 0; renderbrush->pipe_timeout_id = g_timeout_add (300, pika_view_renderer_brush_render_timeout, renderbrush); } return; } pika_view_renderer_render_temp_buf (renderer, widget, temp_buf, temp_buf_x, temp_buf_y, -1, PIKA_VIEW_BG_WHITE, PIKA_VIEW_BG_WHITE); pika_temp_buf_unref (temp_buf); } static gboolean pika_view_renderer_brush_render_timeout (gpointer data) { PikaViewRendererBrush *renderbrush = PIKA_VIEW_RENDERER_BRUSH (data); PikaViewRenderer *renderer = PIKA_VIEW_RENDERER (data); PikaBrushPipe *brush_pipe; PikaBrush *brush; PikaTempBuf *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 = PIKA_BRUSH_PIPE (renderer->viewable); renderbrush->pipe_animation_index++; if (renderbrush->pipe_animation_index >= brush_pipe->n_brushes) renderbrush->pipe_animation_index = 0; brush = PIKA_BRUSH (brush_pipe->brushes[renderbrush->pipe_animation_index]); temp_buf = pika_viewable_get_new_preview (PIKA_VIEWABLE (brush), renderer->context, renderer->width, renderer->height); temp_buf_width = pika_temp_buf_get_width (temp_buf); temp_buf_height = pika_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; pika_view_renderer_render_temp_buf (renderer, renderbrush->widget, temp_buf, temp_buf_x, temp_buf_y, -1, PIKA_VIEW_BG_WHITE, PIKA_VIEW_BG_WHITE); pika_temp_buf_unref (temp_buf); pika_view_renderer_update (renderer); return TRUE; } static void pika_view_renderer_brush_draw (PikaViewRenderer *renderer, GtkWidget *widget, cairo_t *cr, gint available_width, gint available_height) { PIKA_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 = PIKA_IS_BRUSH_PIPE (renderer->viewable); gboolean generated = PIKA_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); } pika_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 }