946 lines
31 KiB
C
946 lines
31 KiB
C
/* PIKA - Photo and Image Kooker Application
|
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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||
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#include "config.h"
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#include <cairo.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libpikabase/pikabase.h"
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#include "libpikamath/pikamath.h"
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#include "core-types.h"
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#include "pikabezierdesc.h"
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#include "pikabrush.h"
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#include "pikabrush-boundary.h"
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#include "pikabrush-load.h"
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#include "pikabrush-mipmap.h"
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#include "pikabrush-private.h"
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#include "pikabrush-save.h"
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#include "pikabrush-transform.h"
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#include "pikabrushcache.h"
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#include "pikabrushgenerated.h"
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#include "pikabrushpipe.h"
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#include "pikatagged.h"
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#include "pikatempbuf.h"
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#include "pika-intl.h"
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enum
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{
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SPACING_CHANGED,
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LAST_SIGNAL
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||
};
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enum
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{
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PROP_0,
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PROP_SPACING
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};
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static void pika_brush_tagged_iface_init (PikaTaggedInterface *iface);
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static void pika_brush_finalize (GObject *object);
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static void pika_brush_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_brush_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static gint64 pika_brush_get_memsize (PikaObject *object,
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gint64 *gui_size);
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static gboolean pika_brush_get_size (PikaViewable *viewable,
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gint *width,
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gint *height);
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static PikaTempBuf * pika_brush_get_new_preview (PikaViewable *viewable,
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PikaContext *context,
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gint width,
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gint height);
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static gchar * pika_brush_get_description (PikaViewable *viewable,
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gchar **tooltip);
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static void pika_brush_dirty (PikaData *data);
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static const gchar * pika_brush_get_extension (PikaData *data);
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static void pika_brush_copy (PikaData *data,
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PikaData *src_data);
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static void pika_brush_real_begin_use (PikaBrush *brush);
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static void pika_brush_real_end_use (PikaBrush *brush);
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static PikaBrush * pika_brush_real_select_brush (PikaBrush *brush,
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const PikaCoords *last_coords,
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const PikaCoords *current_coords);
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static gboolean pika_brush_real_want_null_motion (PikaBrush *brush,
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const PikaCoords *last_coords,
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const PikaCoords *current_coords);
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static gchar * pika_brush_get_checksum (PikaTagged *tagged);
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G_DEFINE_TYPE_WITH_CODE (PikaBrush, pika_brush, PIKA_TYPE_DATA,
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G_ADD_PRIVATE (PikaBrush)
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_TAGGED,
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pika_brush_tagged_iface_init))
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#define parent_class pika_brush_parent_class
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static guint brush_signals[LAST_SIGNAL] = { 0 };
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static void
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pika_brush_class_init (PikaBrushClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
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PikaViewableClass *viewable_class = PIKA_VIEWABLE_CLASS (klass);
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PikaDataClass *data_class = PIKA_DATA_CLASS (klass);
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brush_signals[SPACING_CHANGED] =
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g_signal_new ("spacing-changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaBrushClass, spacing_changed),
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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object_class->finalize = pika_brush_finalize;
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object_class->get_property = pika_brush_get_property;
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object_class->set_property = pika_brush_set_property;
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pika_object_class->get_memsize = pika_brush_get_memsize;
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viewable_class->default_icon_name = "pika-tool-paintbrush";
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viewable_class->get_size = pika_brush_get_size;
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viewable_class->get_new_preview = pika_brush_get_new_preview;
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viewable_class->get_description = pika_brush_get_description;
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data_class->dirty = pika_brush_dirty;
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data_class->save = pika_brush_save;
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data_class->get_extension = pika_brush_get_extension;
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data_class->copy = pika_brush_copy;
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klass->begin_use = pika_brush_real_begin_use;
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klass->end_use = pika_brush_real_end_use;
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klass->select_brush = pika_brush_real_select_brush;
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klass->want_null_motion = pika_brush_real_want_null_motion;
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klass->transform_size = pika_brush_real_transform_size;
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klass->transform_mask = pika_brush_real_transform_mask;
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klass->transform_pixmap = pika_brush_real_transform_pixmap;
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klass->transform_boundary = pika_brush_real_transform_boundary;
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klass->spacing_changed = NULL;
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g_object_class_install_property (object_class, PROP_SPACING,
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g_param_spec_double ("spacing", NULL,
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_("Brush Spacing"),
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1.0, 5000.0, 20.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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pika_brush_tagged_iface_init (PikaTaggedInterface *iface)
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{
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iface->get_checksum = pika_brush_get_checksum;
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}
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static void
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pika_brush_init (PikaBrush *brush)
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{
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brush->priv = pika_brush_get_instance_private (brush);
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brush->priv->spacing = 20;
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brush->priv->x_axis.x = 15.0;
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brush->priv->x_axis.y = 0.0;
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brush->priv->y_axis.x = 0.0;
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brush->priv->y_axis.y = 15.0;
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brush->priv->blur_hardness = 1.0;
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}
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static void
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pika_brush_finalize (GObject *object)
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{
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PikaBrush *brush = PIKA_BRUSH (object);
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g_clear_pointer (&brush->priv->mask, pika_temp_buf_unref);
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g_clear_pointer (&brush->priv->pixmap, pika_temp_buf_unref);
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g_clear_pointer (&brush->priv->blurred_mask, pika_temp_buf_unref);
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g_clear_pointer (&brush->priv->blurred_pixmap, pika_temp_buf_unref);
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pika_brush_mipmap_clear (brush);
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g_clear_object (&brush->priv->mask_cache);
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g_clear_object (&brush->priv->pixmap_cache);
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g_clear_object (&brush->priv->boundary_cache);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_brush_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaBrush *brush = PIKA_BRUSH (object);
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switch (property_id)
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{
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case PROP_SPACING:
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pika_brush_set_spacing (brush, g_value_get_double (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_brush_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaBrush *brush = PIKA_BRUSH (object);
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switch (property_id)
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{
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case PROP_SPACING:
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g_value_set_double (value, pika_brush_get_spacing (brush));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static gint64
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pika_brush_get_memsize (PikaObject *object,
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gint64 *gui_size)
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{
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PikaBrush *brush = PIKA_BRUSH (object);
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gint64 memsize = 0;
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memsize += pika_temp_buf_get_memsize (brush->priv->mask);
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memsize += pika_temp_buf_get_memsize (brush->priv->pixmap);
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memsize += pika_brush_mipmap_get_memsize (brush);
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return memsize + PIKA_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static gboolean
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pika_brush_get_size (PikaViewable *viewable,
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gint *width,
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gint *height)
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{
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PikaBrush *brush = PIKA_BRUSH (viewable);
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*width = pika_temp_buf_get_width (brush->priv->mask);
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*height = pika_temp_buf_get_height (brush->priv->mask);
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return TRUE;
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}
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static PikaTempBuf *
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pika_brush_get_new_preview (PikaViewable *viewable,
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PikaContext *context,
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gint width,
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gint height)
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{
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PikaBrush *brush = PIKA_BRUSH (viewable);
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const PikaTempBuf *mask_buf = brush->priv->mask;
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const PikaTempBuf *pixmap_buf = brush->priv->pixmap;
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PikaTempBuf *return_buf = NULL;
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gint mask_width;
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gint mask_height;
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guchar *mask_data;
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guchar *mask;
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guchar *buf;
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gint x, y;
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gboolean free_mask = FALSE;
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gdouble scale = 1.0;
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mask_width = pika_temp_buf_get_width (mask_buf);
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mask_height = pika_temp_buf_get_height (mask_buf);
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if (mask_width > width || mask_height > height)
|
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{
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gdouble ratio_x = (gdouble) width / (gdouble) mask_width;
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gdouble ratio_y = (gdouble) height / (gdouble) mask_height;
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scale = MIN (ratio_x, ratio_y);
|
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}
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if (PIKA_IS_BRUSH_GENERATED (brush) || scale != 1.0)
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{
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pika_brush_begin_use (brush);
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if (PIKA_IS_BRUSH_GENERATED (brush))
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{
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PikaBrushGenerated *gen_brush = PIKA_BRUSH_GENERATED (brush);
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mask_buf = pika_brush_transform_mask (brush, scale,
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(pika_brush_generated_get_aspect_ratio (gen_brush) - 1.0) * 20.0 / 19.0,
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pika_brush_generated_get_angle (gen_brush) / -360.0,
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FALSE,
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pika_brush_generated_get_hardness (gen_brush));
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}
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else
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{
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mask_buf = pika_brush_transform_mask (brush, scale, 0.0, 0.0, FALSE, 1.0);
|
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}
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if (! mask_buf)
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{
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mask_buf = pika_temp_buf_new (1, 1, babl_format ("Y u8"));
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pika_temp_buf_data_clear ((PikaTempBuf *) mask_buf);
|
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}
|
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else
|
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{
|
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pika_temp_buf_ref ((PikaTempBuf *) mask_buf);
|
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}
|
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if (pixmap_buf)
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pixmap_buf = pika_brush_transform_pixmap (brush, scale,
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0.0, 0.0, FALSE, 1.0);
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mask_width = pika_temp_buf_get_width (mask_buf);
|
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mask_height = pika_temp_buf_get_height (mask_buf);
|
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free_mask = TRUE;
|
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}
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||
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return_buf = pika_temp_buf_new (mask_width, mask_height,
|
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babl_format ("R'G'B'A u8"));
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|
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mask = mask_data = pika_temp_buf_lock (mask_buf, babl_format ("Y u8"),
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GEGL_ACCESS_READ);
|
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buf = pika_temp_buf_get_data (return_buf);
|
||
|
||
if (pixmap_buf)
|
||
{
|
||
guchar *pixmap_data;
|
||
guchar *pixmap;
|
||
|
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pixmap = pixmap_data = pika_temp_buf_lock (pixmap_buf,
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babl_format ("R'G'B' u8"),
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GEGL_ACCESS_READ);
|
||
|
||
for (y = 0; y < mask_height; y++)
|
||
{
|
||
for (x = 0; x < mask_width ; x++)
|
||
{
|
||
*buf++ = *pixmap++;
|
||
*buf++ = *pixmap++;
|
||
*buf++ = *pixmap++;
|
||
*buf++ = *mask++;
|
||
}
|
||
}
|
||
|
||
pika_temp_buf_unlock (pixmap_buf, pixmap_data);
|
||
}
|
||
else
|
||
{
|
||
for (y = 0; y < mask_height; y++)
|
||
{
|
||
for (x = 0; x < mask_width ; x++)
|
||
{
|
||
*buf++ = 0;
|
||
*buf++ = 0;
|
||
*buf++ = 0;
|
||
*buf++ = *mask++;
|
||
}
|
||
}
|
||
}
|
||
|
||
pika_temp_buf_unlock (mask_buf, mask_data);
|
||
|
||
if (free_mask)
|
||
{
|
||
pika_temp_buf_unref ((PikaTempBuf *) mask_buf);
|
||
|
||
pika_brush_end_use (brush);
|
||
}
|
||
|
||
return return_buf;
|
||
}
|
||
|
||
static gchar *
|
||
pika_brush_get_description (PikaViewable *viewable,
|
||
gchar **tooltip)
|
||
{
|
||
PikaBrush *brush = PIKA_BRUSH (viewable);
|
||
|
||
return g_strdup_printf ("%s (%d × %d)",
|
||
pika_object_get_name (brush),
|
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pika_temp_buf_get_width (brush->priv->mask),
|
||
pika_temp_buf_get_height (brush->priv->mask));
|
||
}
|
||
|
||
static void
|
||
pika_brush_dirty (PikaData *data)
|
||
{
|
||
PikaBrush *brush = PIKA_BRUSH (data);
|
||
|
||
if (brush->priv->mask_cache)
|
||
pika_brush_cache_clear (brush->priv->mask_cache);
|
||
|
||
if (brush->priv->pixmap_cache)
|
||
pika_brush_cache_clear (brush->priv->pixmap_cache);
|
||
|
||
if (brush->priv->boundary_cache)
|
||
pika_brush_cache_clear (brush->priv->boundary_cache);
|
||
|
||
pika_brush_mipmap_clear (brush);
|
||
|
||
g_clear_pointer (&brush->priv->blurred_mask, pika_temp_buf_unref);
|
||
g_clear_pointer (&brush->priv->blurred_pixmap, pika_temp_buf_unref);
|
||
|
||
PIKA_DATA_CLASS (parent_class)->dirty (data);
|
||
}
|
||
|
||
static const gchar *
|
||
pika_brush_get_extension (PikaData *data)
|
||
{
|
||
return PIKA_BRUSH_FILE_EXTENSION;
|
||
}
|
||
|
||
static void
|
||
pika_brush_copy (PikaData *data,
|
||
PikaData *src_data)
|
||
{
|
||
PikaBrush *brush = PIKA_BRUSH (data);
|
||
PikaBrush *src_brush = PIKA_BRUSH (src_data);
|
||
|
||
g_clear_pointer (&brush->priv->mask, pika_temp_buf_unref);
|
||
if (src_brush->priv->mask)
|
||
brush->priv->mask = pika_temp_buf_copy (src_brush->priv->mask);
|
||
|
||
g_clear_pointer (&brush->priv->pixmap, pika_temp_buf_unref);
|
||
if (src_brush->priv->pixmap)
|
||
brush->priv->pixmap = pika_temp_buf_copy (src_brush->priv->pixmap);
|
||
|
||
brush->priv->spacing = src_brush->priv->spacing;
|
||
brush->priv->x_axis = src_brush->priv->x_axis;
|
||
brush->priv->y_axis = src_brush->priv->y_axis;
|
||
|
||
pika_data_dirty (data);
|
||
}
|
||
|
||
static void
|
||
pika_brush_real_begin_use (PikaBrush *brush)
|
||
{
|
||
brush->priv->mask_cache =
|
||
pika_brush_cache_new ((GDestroyNotify) pika_temp_buf_unref, 'M', 'm');
|
||
|
||
brush->priv->pixmap_cache =
|
||
pika_brush_cache_new ((GDestroyNotify) pika_temp_buf_unref, 'P', 'p');
|
||
|
||
brush->priv->boundary_cache =
|
||
pika_brush_cache_new ((GDestroyNotify) pika_bezier_desc_free, 'B', 'b');
|
||
}
|
||
|
||
static void
|
||
pika_brush_real_end_use (PikaBrush *brush)
|
||
{
|
||
g_clear_object (&brush->priv->mask_cache);
|
||
g_clear_object (&brush->priv->pixmap_cache);
|
||
g_clear_object (&brush->priv->boundary_cache);
|
||
|
||
g_clear_pointer (&brush->priv->blurred_mask, pika_temp_buf_unref);
|
||
g_clear_pointer (&brush->priv->blurred_pixmap, pika_temp_buf_unref);
|
||
}
|
||
|
||
static PikaBrush *
|
||
pika_brush_real_select_brush (PikaBrush *brush,
|
||
const PikaCoords *last_coords,
|
||
const PikaCoords *current_coords)
|
||
{
|
||
return brush;
|
||
}
|
||
|
||
static gboolean
|
||
pika_brush_real_want_null_motion (PikaBrush *brush,
|
||
const PikaCoords *last_coords,
|
||
const PikaCoords *current_coords)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
static gchar *
|
||
pika_brush_get_checksum (PikaTagged *tagged)
|
||
{
|
||
PikaBrush *brush = PIKA_BRUSH (tagged);
|
||
gchar *checksum_string = NULL;
|
||
|
||
if (brush->priv->mask)
|
||
{
|
||
GChecksum *checksum = g_checksum_new (G_CHECKSUM_MD5);
|
||
|
||
g_checksum_update (checksum,
|
||
pika_temp_buf_get_data (brush->priv->mask),
|
||
pika_temp_buf_get_data_size (brush->priv->mask));
|
||
if (brush->priv->pixmap)
|
||
g_checksum_update (checksum,
|
||
pika_temp_buf_get_data (brush->priv->pixmap),
|
||
pika_temp_buf_get_data_size (brush->priv->pixmap));
|
||
g_checksum_update (checksum,
|
||
(const guchar *) &brush->priv->spacing,
|
||
sizeof (brush->priv->spacing));
|
||
g_checksum_update (checksum,
|
||
(const guchar *) &brush->priv->x_axis,
|
||
sizeof (brush->priv->x_axis));
|
||
g_checksum_update (checksum,
|
||
(const guchar *) &brush->priv->y_axis,
|
||
sizeof (brush->priv->y_axis));
|
||
|
||
checksum_string = g_strdup (g_checksum_get_string (checksum));
|
||
|
||
g_checksum_free (checksum);
|
||
}
|
||
|
||
return checksum_string;
|
||
}
|
||
|
||
/* public functions */
|
||
|
||
PikaData *
|
||
pika_brush_new (PikaContext *context,
|
||
const gchar *name)
|
||
{
|
||
g_return_val_if_fail (name != NULL, NULL);
|
||
|
||
return pika_brush_generated_new (name,
|
||
PIKA_BRUSH_GENERATED_CIRCLE,
|
||
5.0, 2, 0.5, 1.0, 0.0);
|
||
}
|
||
|
||
PikaData *
|
||
pika_brush_get_standard (PikaContext *context)
|
||
{
|
||
static PikaData *standard_brush = NULL;
|
||
|
||
if (! standard_brush)
|
||
{
|
||
g_set_weak_pointer (&standard_brush,
|
||
pika_brush_new (context, "Standard"));
|
||
|
||
pika_data_clean (standard_brush);
|
||
pika_data_make_internal (standard_brush, "pika-brush-standard");
|
||
}
|
||
|
||
return standard_brush;
|
||
}
|
||
|
||
void
|
||
pika_brush_begin_use (PikaBrush *brush)
|
||
{
|
||
g_return_if_fail (PIKA_IS_BRUSH (brush));
|
||
|
||
brush->priv->use_count++;
|
||
|
||
if (brush->priv->use_count == 1)
|
||
PIKA_BRUSH_GET_CLASS (brush)->begin_use (brush);
|
||
}
|
||
|
||
void
|
||
pika_brush_end_use (PikaBrush *brush)
|
||
{
|
||
g_return_if_fail (PIKA_IS_BRUSH (brush));
|
||
g_return_if_fail (brush->priv->use_count > 0);
|
||
|
||
brush->priv->use_count--;
|
||
|
||
if (brush->priv->use_count == 0)
|
||
PIKA_BRUSH_GET_CLASS (brush)->end_use (brush);
|
||
}
|
||
|
||
PikaBrush *
|
||
pika_brush_select_brush (PikaBrush *brush,
|
||
const PikaCoords *last_coords,
|
||
const PikaCoords *current_coords)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
g_return_val_if_fail (last_coords != NULL, NULL);
|
||
g_return_val_if_fail (current_coords != NULL, NULL);
|
||
|
||
return PIKA_BRUSH_GET_CLASS (brush)->select_brush (brush,
|
||
last_coords,
|
||
current_coords);
|
||
}
|
||
|
||
gboolean
|
||
pika_brush_want_null_motion (PikaBrush *brush,
|
||
const PikaCoords *last_coords,
|
||
const PikaCoords *current_coords)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), FALSE);
|
||
g_return_val_if_fail (last_coords != NULL, FALSE);
|
||
g_return_val_if_fail (current_coords != NULL, FALSE);
|
||
|
||
return PIKA_BRUSH_GET_CLASS (brush)->want_null_motion (brush,
|
||
last_coords,
|
||
current_coords);
|
||
}
|
||
|
||
void
|
||
pika_brush_transform_size (PikaBrush *brush,
|
||
gdouble scale,
|
||
gdouble aspect_ratio,
|
||
gdouble angle,
|
||
gboolean reflect,
|
||
gint *width,
|
||
gint *height)
|
||
{
|
||
g_return_if_fail (PIKA_IS_BRUSH (brush));
|
||
g_return_if_fail (scale > 0.0);
|
||
g_return_if_fail (width != NULL);
|
||
g_return_if_fail (height != NULL);
|
||
|
||
if (scale == 1.0 &&
|
||
aspect_ratio == 0.0 &&
|
||
fmod (angle, 0.5) == 0.0)
|
||
{
|
||
*width = pika_temp_buf_get_width (brush->priv->mask);
|
||
*height = pika_temp_buf_get_height (brush->priv->mask);
|
||
|
||
return;
|
||
}
|
||
|
||
PIKA_BRUSH_GET_CLASS (brush)->transform_size (brush,
|
||
scale, aspect_ratio, angle, reflect,
|
||
width, height);
|
||
}
|
||
|
||
const PikaTempBuf *
|
||
pika_brush_transform_mask (PikaBrush *brush,
|
||
gdouble scale,
|
||
gdouble aspect_ratio,
|
||
gdouble angle,
|
||
gboolean reflect,
|
||
gdouble hardness)
|
||
{
|
||
const PikaTempBuf *mask;
|
||
gint width;
|
||
gint height;
|
||
gdouble effective_hardness = hardness;
|
||
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
g_return_val_if_fail (scale > 0.0, NULL);
|
||
|
||
pika_brush_transform_size (brush,
|
||
scale, aspect_ratio, angle, reflect,
|
||
&width, &height);
|
||
|
||
mask = pika_brush_cache_get (brush->priv->mask_cache,
|
||
width, height,
|
||
scale, aspect_ratio, angle, reflect, hardness);
|
||
|
||
if (! mask)
|
||
{
|
||
#if 0
|
||
/* This code makes sure that brushes using blur for hardness
|
||
* (all of them but generated) are blurred once and no more.
|
||
* It also makes hardnes dynamics not work for these brushes.
|
||
* This is intentional. Confoliving for each stamp is too expensive.*/
|
||
if (! brush->priv->blurred_mask &&
|
||
! PIKA_IS_BRUSH_GENERATED(brush) &&
|
||
! PIKA_IS_BRUSH_PIPE(brush) && /*Can't cache pipes. Sanely anyway*/
|
||
hardness < 1.0)
|
||
{
|
||
brush->priv->blurred_mask = PIKA_BRUSH_GET_CLASS (brush)->transform_mask (brush,
|
||
1.0,
|
||
0.0,
|
||
0.0,
|
||
FALSE,
|
||
hardness);
|
||
brush->priv->blur_hardness = hardness;
|
||
}
|
||
|
||
if (brush->priv->blurred_mask)
|
||
{
|
||
effective_hardness = 1.0; /*Hardness has already been applied*/
|
||
}
|
||
#endif
|
||
|
||
mask = PIKA_BRUSH_GET_CLASS (brush)->transform_mask (brush,
|
||
scale,
|
||
aspect_ratio,
|
||
angle,
|
||
reflect,
|
||
effective_hardness);
|
||
|
||
pika_brush_cache_add (brush->priv->mask_cache,
|
||
(gpointer) mask,
|
||
width, height,
|
||
scale, aspect_ratio, angle, reflect, effective_hardness);
|
||
}
|
||
|
||
return mask;
|
||
}
|
||
|
||
const PikaTempBuf *
|
||
pika_brush_transform_pixmap (PikaBrush *brush,
|
||
gdouble scale,
|
||
gdouble aspect_ratio,
|
||
gdouble angle,
|
||
gboolean reflect,
|
||
gdouble hardness)
|
||
{
|
||
const PikaTempBuf *pixmap;
|
||
gint width;
|
||
gint height;
|
||
gdouble effective_hardness = hardness;
|
||
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
g_return_val_if_fail (brush->priv->pixmap != NULL, NULL);
|
||
g_return_val_if_fail (scale > 0.0, NULL);
|
||
|
||
pika_brush_transform_size (brush,
|
||
scale, aspect_ratio, angle, reflect,
|
||
&width, &height);
|
||
|
||
pixmap = pika_brush_cache_get (brush->priv->pixmap_cache,
|
||
width, height,
|
||
scale, aspect_ratio, angle, reflect, hardness);
|
||
|
||
if (! pixmap)
|
||
{
|
||
#if 0
|
||
if (! brush->priv->blurred_pixmap &&
|
||
! PIKA_IS_BRUSH_GENERATED(brush) &&
|
||
! PIKA_IS_BRUSH_PIPE(brush) /*Can't cache pipes. Sanely anyway*/
|
||
&& hardness < 1.0)
|
||
{
|
||
brush->priv->blurred_pixmap = PIKA_BRUSH_GET_CLASS (brush)->transform_pixmap (brush,
|
||
1.0,
|
||
0.0,
|
||
0.0,
|
||
FALSE,
|
||
hardness);
|
||
brush->priv->blur_hardness = hardness;
|
||
}
|
||
|
||
if (brush->priv->blurred_pixmap) {
|
||
effective_hardness = 1.0; /*Hardness has already been applied*/
|
||
}
|
||
#endif
|
||
|
||
pixmap = PIKA_BRUSH_GET_CLASS (brush)->transform_pixmap (brush,
|
||
scale,
|
||
aspect_ratio,
|
||
angle,
|
||
reflect,
|
||
effective_hardness);
|
||
|
||
pika_brush_cache_add (brush->priv->pixmap_cache,
|
||
(gpointer) pixmap,
|
||
width, height,
|
||
scale, aspect_ratio, angle, reflect, effective_hardness);
|
||
}
|
||
|
||
return pixmap;
|
||
}
|
||
|
||
const PikaBezierDesc *
|
||
pika_brush_transform_boundary (PikaBrush *brush,
|
||
gdouble scale,
|
||
gdouble aspect_ratio,
|
||
gdouble angle,
|
||
gboolean reflect,
|
||
gdouble hardness,
|
||
gint *width,
|
||
gint *height)
|
||
{
|
||
const PikaBezierDesc *boundary;
|
||
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
g_return_val_if_fail (scale > 0.0, NULL);
|
||
g_return_val_if_fail (width != NULL, NULL);
|
||
g_return_val_if_fail (height != NULL, NULL);
|
||
|
||
pika_brush_transform_size (brush,
|
||
scale, aspect_ratio, angle, reflect,
|
||
width, height);
|
||
|
||
boundary = pika_brush_cache_get (brush->priv->boundary_cache,
|
||
*width, *height,
|
||
scale, aspect_ratio, angle, reflect, hardness);
|
||
|
||
if (! boundary)
|
||
{
|
||
boundary = PIKA_BRUSH_GET_CLASS (brush)->transform_boundary (brush,
|
||
scale,
|
||
aspect_ratio,
|
||
angle,
|
||
reflect,
|
||
hardness,
|
||
width,
|
||
height);
|
||
|
||
/* while the brush mask is always at least 1x1 pixels, its
|
||
* outline can correctly be NULL
|
||
*
|
||
* FIXME: make the cache handle NULL things when it is
|
||
* properly implemented
|
||
*/
|
||
if (boundary)
|
||
pika_brush_cache_add (brush->priv->boundary_cache,
|
||
(gpointer) boundary,
|
||
*width, *height,
|
||
scale, aspect_ratio, angle, reflect, hardness);
|
||
}
|
||
|
||
return boundary;
|
||
}
|
||
|
||
PikaTempBuf *
|
||
pika_brush_get_mask (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (brush != NULL, NULL);
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
|
||
if (brush->priv->blurred_mask)
|
||
{
|
||
return brush->priv->blurred_mask;
|
||
}
|
||
return brush->priv->mask;
|
||
}
|
||
|
||
PikaTempBuf *
|
||
pika_brush_get_pixmap (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (brush != NULL, NULL);
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), NULL);
|
||
|
||
if(brush->priv->blurred_pixmap)
|
||
{
|
||
return brush->priv->blurred_pixmap;
|
||
}
|
||
return brush->priv->pixmap;
|
||
}
|
||
|
||
void
|
||
pika_brush_flush_blur_caches (PikaBrush *brush)
|
||
{
|
||
#if 0
|
||
g_clear_pointer (&brush->priv->blurred_mask, pika_temp_buf_unref);
|
||
g_clear_pointer (&brush->priv->blurred_pixmap, pika_temp_buf_unref);
|
||
|
||
if (brush->priv->mask_cache)
|
||
pika_brush_cache_clear (brush->priv->mask_cache);
|
||
|
||
if (brush->priv->pixmap_cache)
|
||
pika_brush_cache_clear (brush->priv->pixmap_cache);
|
||
|
||
if (brush->priv->boundary_cache)
|
||
pika_brush_cache_clear (brush->priv->boundary_cache);
|
||
#endif
|
||
}
|
||
|
||
gdouble
|
||
pika_brush_get_blur_hardness (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), 0);
|
||
|
||
return brush->priv->blur_hardness;
|
||
}
|
||
|
||
gint
|
||
pika_brush_get_width (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), 0);
|
||
|
||
if (brush->priv->blurred_mask)
|
||
return pika_temp_buf_get_width (brush->priv->blurred_mask);
|
||
|
||
if (brush->priv->blurred_pixmap)
|
||
return pika_temp_buf_get_width (brush->priv->blurred_pixmap);
|
||
|
||
return pika_temp_buf_get_width (brush->priv->mask);
|
||
}
|
||
|
||
gint
|
||
pika_brush_get_height (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), 0);
|
||
|
||
if (brush->priv->blurred_mask)
|
||
return pika_temp_buf_get_height (brush->priv->blurred_mask);
|
||
|
||
if (brush->priv->blurred_pixmap)
|
||
return pika_temp_buf_get_height (brush->priv->blurred_pixmap);
|
||
|
||
return pika_temp_buf_get_height (brush->priv->mask);
|
||
}
|
||
|
||
gint
|
||
pika_brush_get_spacing (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), 0);
|
||
|
||
return brush->priv->spacing;
|
||
}
|
||
|
||
void
|
||
pika_brush_set_spacing (PikaBrush *brush,
|
||
gint spacing)
|
||
{
|
||
g_return_if_fail (PIKA_IS_BRUSH (brush));
|
||
|
||
if (brush->priv->spacing != spacing)
|
||
{
|
||
brush->priv->spacing = spacing;
|
||
|
||
g_signal_emit (brush, brush_signals[SPACING_CHANGED], 0);
|
||
g_object_notify (G_OBJECT (brush), "spacing");
|
||
}
|
||
}
|
||
|
||
static const PikaVector2 fail = { 0.0, 0.0 };
|
||
|
||
PikaVector2
|
||
pika_brush_get_x_axis (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), fail);
|
||
|
||
return brush->priv->x_axis;
|
||
}
|
||
|
||
PikaVector2
|
||
pika_brush_get_y_axis (PikaBrush *brush)
|
||
{
|
||
g_return_val_if_fail (PIKA_IS_BRUSH (brush), fail);
|
||
|
||
return brush->priv->y_axis;
|
||
}
|
