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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcellrendererdashes.c
* Copyright (C) 2005 Sven Neumann <sven@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 <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpdashpattern.h"
#include "gimpcellrendererdashes.h"
#define DASHES_WIDTH 96
#define DASHES_HEIGHT 4
#define N_SEGMENTS 24
#define BLOCK_WIDTH (DASHES_WIDTH / (2 * N_SEGMENTS))
enum
{
PROP_0,
PROP_PATTERN
};
static void gimp_cell_renderer_dashes_finalize (GObject *object);
static void gimp_cell_renderer_dashes_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void gimp_cell_renderer_dashes_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_cell_renderer_dashes_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *rectangle,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void gimp_cell_renderer_dashes_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags);
G_DEFINE_TYPE (GimpCellRendererDashes, gimp_cell_renderer_dashes,
GTK_TYPE_CELL_RENDERER)
#define parent_class gimp_cell_renderer_dashes_parent_class
static void
gimp_cell_renderer_dashes_class_init (GimpCellRendererDashesClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
object_class->finalize = gimp_cell_renderer_dashes_finalize;
object_class->get_property = gimp_cell_renderer_dashes_get_property;
object_class->set_property = gimp_cell_renderer_dashes_set_property;
cell_class->get_size = gimp_cell_renderer_dashes_get_size;
cell_class->render = gimp_cell_renderer_dashes_render;
g_object_class_install_property (object_class, PROP_PATTERN,
g_param_spec_boxed ("pattern", NULL, NULL,
GIMP_TYPE_DASH_PATTERN,
GIMP_PARAM_WRITABLE));
}
static void
gimp_cell_renderer_dashes_init (GimpCellRendererDashes *dashes)
{
dashes->segments = g_new0 (gboolean, N_SEGMENTS);
}
static void
gimp_cell_renderer_dashes_finalize (GObject *object)
{
GimpCellRendererDashes *dashes = GIMP_CELL_RENDERER_DASHES (object);
g_free (dashes->segments);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_cell_renderer_dashes_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
static void
gimp_cell_renderer_dashes_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GimpCellRendererDashes *dashes = GIMP_CELL_RENDERER_DASHES (object);
switch (param_id)
{
case PROP_PATTERN:
gimp_dash_pattern_fill_segments (g_value_get_boxed (value),
dashes->segments, N_SEGMENTS);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
gimp_cell_renderer_dashes_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
gfloat xalign, yalign;
gint xpad, ypad;
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
if (cell_area)
{
if (x_offset)
{
gdouble align;
align = ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
1.0 - xalign : xalign);
*x_offset = align * (cell_area->width - DASHES_WIDTH);
*x_offset = MAX (*x_offset, 0) + xpad;
}
if (y_offset)
{
*y_offset = yalign * (cell_area->height - DASHES_HEIGHT);
*y_offset = MAX (*y_offset, 0) + ypad;
}
}
else
{
if (x_offset)
*x_offset = 0;
if (y_offset)
*y_offset = 0;
}
*width = DASHES_WIDTH + 2 * xpad;
*height = DASHES_HEIGHT + 2 * ypad;
}
static void
gimp_cell_renderer_dashes_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
{
GimpCellRendererDashes *dashes = GIMP_CELL_RENDERER_DASHES (cell);
GtkStyle *style = gtk_widget_get_style (widget);
GtkStateType state;
gint xpad, ypad;
cairo_t *cr;
gint width;
gint x, y;
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
if (! gtk_cell_renderer_get_sensitive (cell))
{
state = GTK_STATE_INSENSITIVE;
}
else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
{
if (gtk_widget_has_focus (widget))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
}
else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT &&
gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT)
{
state = GTK_STATE_PRELIGHT;
}
else
{
if (gtk_widget_is_sensitive (widget))
state = GTK_STATE_NORMAL;
else
state = GTK_STATE_INSENSITIVE;
}
y = cell_area->y + (cell_area->height - DASHES_HEIGHT) / 2;
width = cell_area->width - 2 * xpad;
cr = gdk_cairo_create (window);
gdk_cairo_rectangle (cr, expose_area);
cairo_clip (cr);
for (x = 0; x < width + BLOCK_WIDTH; x += BLOCK_WIDTH)
{
guint index = ((guint) x / BLOCK_WIDTH) % N_SEGMENTS;
if (dashes->segments[index])
{
cairo_rectangle (cr,
cell_area->x + xpad + x, y,
MIN (BLOCK_WIDTH, width - x), DASHES_HEIGHT);
}
}
gdk_cairo_set_source_color (cr, &style->text[state]);
cairo_fill (cr);
cairo_destroy (cr);
}
GtkCellRenderer *
gimp_cell_renderer_dashes_new (void)
{
return g_object_new (GIMP_TYPE_CELL_RENDERER_DASHES, NULL);
}
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