352 lines
10 KiB
C
352 lines
10 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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* PikaGrid
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* Copyright (C) 2003 Henrik Brix Andersen <brix@gimp.org>
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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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#include "config.h"
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#include <string.h>
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#include <cairo.h>
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "libpikamath/pikamath.h"
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#include "libpikabase/pikabase.h"
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#include "libpikaconfig/pikaconfig.h"
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#include "libpikacolor/pikacolor.h"
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#include "core-types.h"
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#include "pikagrid.h"
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#include "pika-intl.h"
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enum
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{
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PROP_0,
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PROP_STYLE,
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PROP_FGCOLOR,
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PROP_BGCOLOR,
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PROP_XSPACING,
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PROP_YSPACING,
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PROP_SPACING_UNIT,
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PROP_XOFFSET,
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PROP_YOFFSET,
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PROP_OFFSET_UNIT
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};
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static void pika_grid_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 void pika_grid_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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G_DEFINE_TYPE_WITH_CODE (PikaGrid, pika_grid, PIKA_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONFIG, NULL))
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static void
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pika_grid_class_init (PikaGridClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaRGB black;
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PikaRGB white;
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object_class->get_property = pika_grid_get_property;
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object_class->set_property = pika_grid_set_property;
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pika_rgba_set (&black, 0.0, 0.0, 0.0, PIKA_OPACITY_OPAQUE);
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pika_rgba_set (&white, 1.0, 1.0, 1.0, PIKA_OPACITY_OPAQUE);
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PIKA_CONFIG_PROP_ENUM (object_class, PROP_STYLE,
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"style",
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_("Line style"),
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_("Line style used for the grid."),
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PIKA_TYPE_GRID_STYLE,
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PIKA_GRID_SOLID,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_RGB (object_class, PROP_FGCOLOR,
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"fgcolor",
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_("Foreground color"),
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_("The foreground color of the grid."),
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TRUE, &black,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_RGB (object_class, PROP_BGCOLOR,
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"bgcolor",
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_("Background color"),
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_("The background color of the grid; "
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"only used in double dashed line style."),
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TRUE, &white,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_XSPACING,
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"xspacing",
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_("Spacing X"),
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_("Horizontal spacing of grid lines."),
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0.0, PIKA_MAX_IMAGE_SIZE, 10.0,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_YSPACING,
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"yspacing",
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_("Spacing Y"),
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_("Vertical spacing of grid lines."),
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0.0, PIKA_MAX_IMAGE_SIZE, 10.0,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_UNIT (object_class, PROP_SPACING_UNIT,
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"spacing-unit",
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_("Spacing unit"),
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NULL,
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FALSE, FALSE, PIKA_UNIT_INCH,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_XOFFSET,
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"xoffset",
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_("Offset X"),
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_("Horizontal offset of the first grid "
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"line; this may be a negative number."),
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- PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE, 0.0,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_DOUBLE (object_class, PROP_YOFFSET,
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"yoffset",
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_("Offset Y"),
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_("Vertical offset of the first grid "
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"line; this may be a negative number."),
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- PIKA_MAX_IMAGE_SIZE,
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PIKA_MAX_IMAGE_SIZE, 0.0,
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PIKA_PARAM_STATIC_STRINGS);
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PIKA_CONFIG_PROP_UNIT (object_class, PROP_OFFSET_UNIT,
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"offset-unit",
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_("Offset unit"),
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NULL,
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FALSE, FALSE, PIKA_UNIT_INCH,
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PIKA_PARAM_STATIC_STRINGS);
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}
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static void
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pika_grid_init (PikaGrid *grid)
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{
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}
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static void
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pika_grid_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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PikaGrid *grid = PIKA_GRID (object);
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switch (property_id)
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{
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case PROP_STYLE:
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g_value_set_enum (value, grid->style);
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break;
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case PROP_FGCOLOR:
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g_value_set_boxed (value, &grid->fgcolor);
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break;
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case PROP_BGCOLOR:
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g_value_set_boxed (value, &grid->bgcolor);
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break;
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case PROP_XSPACING:
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g_value_set_double (value, grid->xspacing);
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break;
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case PROP_YSPACING:
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g_value_set_double (value, grid->yspacing);
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break;
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case PROP_SPACING_UNIT:
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g_value_set_int (value, grid->spacing_unit);
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break;
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case PROP_XOFFSET:
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g_value_set_double (value, grid->xoffset);
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break;
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case PROP_YOFFSET:
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g_value_set_double (value, grid->yoffset);
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break;
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case PROP_OFFSET_UNIT:
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g_value_set_int (value, grid->offset_unit);
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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_grid_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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PikaGrid *grid = PIKA_GRID (object);
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PikaRGB *color;
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switch (property_id)
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{
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case PROP_STYLE:
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grid->style = g_value_get_enum (value);
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break;
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case PROP_FGCOLOR:
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color = g_value_get_boxed (value);
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grid->fgcolor = *color;
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break;
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case PROP_BGCOLOR:
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color = g_value_get_boxed (value);
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grid->bgcolor = *color;
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break;
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case PROP_XSPACING:
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grid->xspacing = g_value_get_double (value);
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break;
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case PROP_YSPACING:
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grid->yspacing = g_value_get_double (value);
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break;
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case PROP_SPACING_UNIT:
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grid->spacing_unit = g_value_get_int (value);
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break;
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case PROP_XOFFSET:
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grid->xoffset = g_value_get_double (value);
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break;
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case PROP_YOFFSET:
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grid->yoffset = g_value_get_double (value);
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break;
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case PROP_OFFSET_UNIT:
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grid->offset_unit = g_value_get_int (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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/* public functions */
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PikaGridStyle
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pika_grid_get_style (PikaGrid *grid)
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{
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g_return_val_if_fail (PIKA_IS_GRID (grid), PIKA_GRID_SOLID);
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return grid->style;
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}
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void
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pika_grid_get_fgcolor (PikaGrid *grid,
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PikaRGB *fgcolor)
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{
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g_return_if_fail (PIKA_IS_GRID (grid));
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g_return_if_fail (fgcolor != NULL);
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*fgcolor = grid->fgcolor;
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}
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void
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pika_grid_get_bgcolor (PikaGrid *grid,
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PikaRGB *bgcolor)
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{
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g_return_if_fail (PIKA_IS_GRID (grid));
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g_return_if_fail (bgcolor != NULL);
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*bgcolor = grid->bgcolor;
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}
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void
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pika_grid_get_spacing (PikaGrid *grid,
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gdouble *xspacing,
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gdouble *yspacing)
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{
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g_return_if_fail (PIKA_IS_GRID (grid));
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if (xspacing) *xspacing = grid->xspacing;
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if (yspacing) *yspacing = grid->yspacing;
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}
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void
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pika_grid_get_offset (PikaGrid *grid,
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gdouble *xoffset,
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gdouble *yoffset)
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{
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g_return_if_fail (PIKA_IS_GRID (grid));
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if (xoffset) *xoffset = grid->xoffset;
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if (yoffset) *yoffset = grid->yoffset;
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}
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const gchar *
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pika_grid_parasite_name (void)
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{
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return "pika-image-grid";
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}
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PikaParasite *
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pika_grid_to_parasite (PikaGrid *grid)
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{
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g_return_val_if_fail (PIKA_IS_GRID (grid), NULL);
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return pika_config_serialize_to_parasite (PIKA_CONFIG (grid),
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pika_grid_parasite_name (),
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PIKA_PARASITE_PERSISTENT,
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NULL);
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}
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PikaGrid *
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pika_grid_from_parasite (const PikaParasite *parasite)
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{
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PikaGrid *grid;
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GError *error = NULL;
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g_return_val_if_fail (parasite != NULL, NULL);
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g_return_val_if_fail (strcmp (pika_parasite_get_name (parasite),
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pika_grid_parasite_name ()) == 0, NULL);
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if (! pika_parasite_get_data (parasite, NULL))
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{
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g_warning ("Empty grid parasite");
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return NULL;
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}
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grid = g_object_new (PIKA_TYPE_GRID, NULL);
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if (! pika_config_deserialize_parasite (PIKA_CONFIG (grid),
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parasite,
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NULL,
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&error))
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{
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g_warning ("Failed to deserialize grid parasite: %s", error->message);
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g_error_free (error);
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}
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return grid;
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}
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