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-rw-r--r--app/widgets/gimpviewrendererbrush.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/app/widgets/gimpviewrendererbrush.c b/app/widgets/gimpviewrendererbrush.c
new file mode 100644
index 0000000..0bf0116
--- /dev/null
+++ b/app/widgets/gimpviewrendererbrush.c
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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
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-22 18:55:26 +0000