mirror of
https://gitlab.gnome.org/GNOME/nautilus
synced 2024-08-25 10:45:41 +00:00
![Alexander Larsson](/assets/img/avatar_default.png)
2008-12-15 Alexander Larsson <alexl@redhat.com> * Makefile.am: * acconfig.h: * configure.in: * eel/ * libnautilus-private/Makefile.am: Import eel into nautilus. svn path=/trunk/; revision=14815
1306 lines
35 KiB
C
1306 lines
35 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
|
|
|
|
/* eel-gdk-pixbuf-extensions.c: Routines to augment what's in gdk-pixbuf.
|
|
|
|
Copyright (C) 2000 Eazel, Inc.
|
|
|
|
The Gnome Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The Gnome Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the Gnome Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA.
|
|
|
|
Authors: Darin Adler <darin@eazel.com>
|
|
Ramiro Estrugo <ramiro@eazel.com>
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include "eel-gdk-pixbuf-extensions.h"
|
|
|
|
#include "eel-art-gtk-extensions.h"
|
|
#include "eel-debug-drawing.h"
|
|
#include "eel-debug.h"
|
|
#include "eel-gdk-extensions.h"
|
|
#include "eel-glib-extensions.h"
|
|
#include "eel-lib-self-check-functions.h"
|
|
#include "eel-string.h"
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
#include <gdk/gdkprivate.h>
|
|
#include <gdk/gdkx.h>
|
|
#include <gio/gio.h>
|
|
#include <math.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#define LOAD_BUFFER_SIZE 65536
|
|
|
|
const EelIRect eel_gdk_pixbuf_whole_pixbuf = { G_MININT, G_MININT, G_MAXINT, G_MAXINT };
|
|
|
|
struct EelPixbufLoadHandle {
|
|
GCancellable *cancellable;
|
|
GInputStream *stream;
|
|
EelPixbufLoadCallback callback;
|
|
gpointer callback_data;
|
|
GdkPixbufLoader *loader;
|
|
char buffer[LOAD_BUFFER_SIZE];
|
|
};
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_list_ref
|
|
* @pixbuf_list: A list of GdkPixbuf objects.
|
|
*
|
|
* Refs all the pixbufs.
|
|
**/
|
|
void
|
|
eel_gdk_pixbuf_list_ref (GList *pixbuf_list)
|
|
{
|
|
g_list_foreach (pixbuf_list, (GFunc) g_object_ref, NULL);
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_list_free
|
|
* @pixbuf_list: A list of GdkPixbuf objects.
|
|
*
|
|
* Unrefs all the pixbufs, then frees the list.
|
|
**/
|
|
void
|
|
eel_gdk_pixbuf_list_free (GList *pixbuf_list)
|
|
{
|
|
eel_g_list_free_deep_custom (pixbuf_list, (GFunc) g_object_unref, NULL);
|
|
}
|
|
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_load (const char *uri)
|
|
{
|
|
GdkPixbuf *pixbuf;
|
|
GFile *file;
|
|
GFileInputStream *stream;
|
|
|
|
g_return_val_if_fail (uri != NULL, NULL);
|
|
|
|
file = g_file_new_for_uri (uri);
|
|
|
|
stream = g_file_read (file, NULL, NULL);
|
|
|
|
g_object_unref (file);
|
|
|
|
if (stream == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
pixbuf = eel_gdk_pixbuf_load_from_stream (G_INPUT_STREAM (stream));
|
|
|
|
g_object_unref (stream);
|
|
|
|
return pixbuf;
|
|
}
|
|
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_load_from_stream (GInputStream *stream)
|
|
{
|
|
return eel_gdk_pixbuf_load_from_stream_at_size (stream, -1);
|
|
}
|
|
|
|
static void
|
|
pixbuf_loader_size_prepared (GdkPixbufLoader *loader,
|
|
int width,
|
|
int height,
|
|
gpointer desired_size_ptr)
|
|
{
|
|
int size, desired_size;
|
|
float scale;
|
|
|
|
size = MAX (width, height);
|
|
desired_size = GPOINTER_TO_INT (desired_size_ptr);
|
|
|
|
if (size != desired_size) {
|
|
scale = (float) desired_size / size;
|
|
gdk_pixbuf_loader_set_size (loader,
|
|
floor (scale * width + 0.5),
|
|
floor (scale * height + 0.5));
|
|
}
|
|
}
|
|
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_load_from_stream_at_size (GInputStream *stream,
|
|
int size)
|
|
{
|
|
char buffer[LOAD_BUFFER_SIZE];
|
|
gssize bytes_read;
|
|
GdkPixbufLoader *loader;
|
|
GdkPixbuf *pixbuf;
|
|
gboolean got_eos;
|
|
|
|
|
|
g_return_val_if_fail (stream != NULL, NULL);
|
|
|
|
got_eos = FALSE;
|
|
loader = gdk_pixbuf_loader_new ();
|
|
|
|
if (size > 0) {
|
|
g_signal_connect (loader, "size-prepared",
|
|
G_CALLBACK (pixbuf_loader_size_prepared),
|
|
GINT_TO_POINTER (size));
|
|
}
|
|
|
|
while (1) {
|
|
bytes_read = g_input_stream_read (stream, buffer, sizeof (buffer),
|
|
NULL, NULL);
|
|
|
|
if (bytes_read < 0) {
|
|
break;
|
|
}
|
|
if (bytes_read == 0) {
|
|
got_eos = TRUE;
|
|
break;
|
|
}
|
|
if (!gdk_pixbuf_loader_write (loader,
|
|
buffer,
|
|
bytes_read,
|
|
NULL)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_input_stream_close (stream, NULL, NULL);
|
|
gdk_pixbuf_loader_close (loader, NULL);
|
|
|
|
pixbuf = NULL;
|
|
if (got_eos) {
|
|
pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
|
|
if (pixbuf != NULL) {
|
|
g_object_ref (pixbuf);
|
|
}
|
|
}
|
|
|
|
g_object_unref (loader);
|
|
|
|
return pixbuf;
|
|
}
|
|
|
|
static void
|
|
free_pixbuf_load_handle (EelPixbufLoadHandle *handle)
|
|
{
|
|
g_object_unref (handle->cancellable);
|
|
if (handle->loader != NULL) {
|
|
g_object_unref (handle->loader);
|
|
}
|
|
if (handle->stream) {
|
|
g_input_stream_close_async (handle->stream, 0, NULL, NULL, NULL);
|
|
g_object_unref (handle->stream);
|
|
}
|
|
g_free (handle);
|
|
}
|
|
|
|
static void
|
|
load_done (EelPixbufLoadHandle *handle, GError *error, gboolean get_pixbuf)
|
|
{
|
|
GdkPixbuf *pixbuf;
|
|
|
|
if (handle->loader != NULL) {
|
|
gdk_pixbuf_loader_close (handle->loader, NULL);
|
|
}
|
|
|
|
pixbuf = get_pixbuf ? gdk_pixbuf_loader_get_pixbuf (handle->loader) : NULL;
|
|
|
|
handle->callback (error, pixbuf, handle->callback_data);
|
|
|
|
free_pixbuf_load_handle (handle);
|
|
}
|
|
|
|
static void
|
|
file_read_callback (GObject *source_object,
|
|
GAsyncResult *res,
|
|
gpointer user_data)
|
|
{
|
|
EelPixbufLoadHandle *handle;
|
|
gssize bytes_read;
|
|
GError *error;
|
|
|
|
handle = user_data;
|
|
|
|
if (g_cancellable_is_cancelled (handle->cancellable)) {
|
|
free_pixbuf_load_handle (handle);
|
|
return;
|
|
}
|
|
|
|
error = NULL;
|
|
bytes_read = g_input_stream_read_finish (G_INPUT_STREAM (source_object),
|
|
res, &error);
|
|
|
|
if (bytes_read > 0) {
|
|
if (!gdk_pixbuf_loader_write (handle->loader,
|
|
handle->buffer,
|
|
bytes_read,
|
|
&error)) {
|
|
bytes_read = -1;
|
|
} else {
|
|
g_input_stream_read_async (handle->stream,
|
|
handle->buffer,
|
|
sizeof (handle->buffer),
|
|
0,
|
|
handle->cancellable,
|
|
file_read_callback, handle);
|
|
return;
|
|
}
|
|
}
|
|
|
|
load_done (handle, error, bytes_read == 0);
|
|
|
|
if (error != NULL) {
|
|
g_error_free (error);
|
|
}
|
|
}
|
|
|
|
static void
|
|
file_opened_callback (GObject *source_object,
|
|
GAsyncResult *res,
|
|
gpointer user_data)
|
|
{
|
|
EelPixbufLoadHandle *handle;
|
|
GFileInputStream *stream;
|
|
GError *error;
|
|
|
|
handle = user_data;
|
|
|
|
if (g_cancellable_is_cancelled (handle->cancellable)) {
|
|
free_pixbuf_load_handle (handle);
|
|
return;
|
|
}
|
|
|
|
error = NULL;
|
|
stream = g_file_read_finish (G_FILE (source_object), res, &error);
|
|
|
|
if (stream == NULL) {
|
|
load_done (handle, error, FALSE);
|
|
g_error_free (error);
|
|
return;
|
|
}
|
|
|
|
handle->stream = G_INPUT_STREAM (stream);
|
|
handle->loader = gdk_pixbuf_loader_new ();
|
|
|
|
|
|
g_input_stream_read_async (handle->stream,
|
|
handle->buffer,
|
|
sizeof (handle->buffer),
|
|
0,
|
|
handle->cancellable,
|
|
file_read_callback, handle);
|
|
}
|
|
|
|
EelPixbufLoadHandle *
|
|
eel_gdk_pixbuf_load_async (const char *uri,
|
|
int priority,
|
|
EelPixbufLoadCallback callback,
|
|
gpointer callback_data)
|
|
{
|
|
EelPixbufLoadHandle *handle;
|
|
GFile *file;
|
|
|
|
handle = g_new0 (EelPixbufLoadHandle, 1);
|
|
handle->cancellable = g_cancellable_new ();
|
|
handle->callback = callback;
|
|
handle->callback_data = callback_data;
|
|
|
|
file = g_file_new_for_uri (uri);
|
|
|
|
g_file_read_async (file, priority, handle->cancellable,
|
|
file_opened_callback, handle);
|
|
|
|
return handle;
|
|
}
|
|
|
|
void
|
|
eel_cancel_gdk_pixbuf_load (EelPixbufLoadHandle *handle)
|
|
{
|
|
if (handle == NULL) {
|
|
return;
|
|
}
|
|
|
|
g_cancellable_cancel (handle->cancellable);
|
|
}
|
|
|
|
/* return the average value of each component */
|
|
guint32
|
|
eel_gdk_pixbuf_average_value (GdkPixbuf *pixbuf)
|
|
{
|
|
guint64 a_total, r_total, g_total, b_total;
|
|
guint row, column;
|
|
int row_stride;
|
|
const guchar *pixels, *p;
|
|
int r, g, b, a;
|
|
guint64 dividend;
|
|
guint width, height;
|
|
|
|
width = gdk_pixbuf_get_width (pixbuf);
|
|
height = gdk_pixbuf_get_height (pixbuf);
|
|
row_stride = gdk_pixbuf_get_rowstride (pixbuf);
|
|
pixels = gdk_pixbuf_get_pixels (pixbuf);
|
|
|
|
/* iterate through the pixbuf, counting up each component */
|
|
a_total = 0;
|
|
r_total = 0;
|
|
g_total = 0;
|
|
b_total = 0;
|
|
|
|
if (gdk_pixbuf_get_has_alpha (pixbuf)) {
|
|
for (row = 0; row < height; row++) {
|
|
p = pixels + (row * row_stride);
|
|
for (column = 0; column < width; column++) {
|
|
r = *p++;
|
|
g = *p++;
|
|
b = *p++;
|
|
a = *p++;
|
|
|
|
a_total += a;
|
|
r_total += r * a;
|
|
g_total += g * a;
|
|
b_total += b * a;
|
|
}
|
|
}
|
|
dividend = height * width * 0xFF;
|
|
a_total *= 0xFF;
|
|
} else {
|
|
for (row = 0; row < height; row++) {
|
|
p = pixels + (row * row_stride);
|
|
for (column = 0; column < width; column++) {
|
|
r = *p++;
|
|
g = *p++;
|
|
b = *p++;
|
|
|
|
r_total += r;
|
|
g_total += g;
|
|
b_total += b;
|
|
}
|
|
}
|
|
dividend = height * width;
|
|
a_total = dividend * 0xFF;
|
|
}
|
|
|
|
return ((a_total + dividend / 2) / dividend) << 24
|
|
| ((r_total + dividend / 2) / dividend) << 16
|
|
| ((g_total + dividend / 2) / dividend) << 8
|
|
| ((b_total + dividend / 2) / dividend);
|
|
}
|
|
|
|
double
|
|
eel_gdk_scale_to_fit_factor (int width, int height,
|
|
int max_width, int max_height,
|
|
int *scaled_width, int *scaled_height)
|
|
{
|
|
double scale_factor;
|
|
|
|
scale_factor = MIN (max_width / (double) width, max_height / (double) height);
|
|
|
|
*scaled_width = floor (width * scale_factor + .5);
|
|
*scaled_height = floor (height * scale_factor + .5);
|
|
|
|
return scale_factor;
|
|
}
|
|
|
|
/* Returns a scaled copy of pixbuf, preserving aspect ratio. The copy will
|
|
* be scaled as large as possible without exceeding the specified width and height.
|
|
*/
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_scale_to_fit (GdkPixbuf *pixbuf, int max_width, int max_height)
|
|
{
|
|
int scaled_width;
|
|
int scaled_height;
|
|
|
|
eel_gdk_scale_to_fit_factor (gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf),
|
|
max_width, max_height,
|
|
&scaled_width, &scaled_height);
|
|
|
|
return gdk_pixbuf_scale_simple (pixbuf, scaled_width, scaled_height, GDK_INTERP_BILINEAR);
|
|
}
|
|
|
|
/* Returns a copy of pixbuf scaled down, preserving aspect ratio, to fit
|
|
* within the specified width and height. If it already fits, a copy of
|
|
* the original, without scaling, is returned.
|
|
*/
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_scale_down_to_fit (GdkPixbuf *pixbuf, int max_width, int max_height)
|
|
{
|
|
int scaled_width;
|
|
int scaled_height;
|
|
|
|
double scale_factor;
|
|
|
|
scale_factor = eel_gdk_scale_to_fit_factor (gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf),
|
|
max_width, max_height,
|
|
&scaled_width, &scaled_height);
|
|
|
|
if (scale_factor >= 1.0) {
|
|
return gdk_pixbuf_copy (pixbuf);
|
|
} else {
|
|
return eel_gdk_pixbuf_scale_down (pixbuf, scaled_width, scaled_height);
|
|
}
|
|
}
|
|
|
|
double
|
|
eel_gdk_scale_to_min_factor (int width, int height,
|
|
int min_width, int min_height,
|
|
int *scaled_width, int *scaled_height)
|
|
{
|
|
double scale_factor;
|
|
|
|
scale_factor = MAX (min_width / (double) width, min_height / (double) height);
|
|
|
|
*scaled_width = floor (width * scale_factor + .5);
|
|
*scaled_height = floor (height * scale_factor + .5);
|
|
|
|
return scale_factor;
|
|
}
|
|
|
|
/* Returns a scaled copy of pixbuf, preserving aspect ratio. The copy will
|
|
* be scaled as small as possible without going under the specified width and height.
|
|
*/
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_scale_to_min (GdkPixbuf *pixbuf, int min_width, int min_height)
|
|
{
|
|
int scaled_width;
|
|
int scaled_height;
|
|
|
|
eel_gdk_scale_to_min_factor (gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf),
|
|
min_width, min_height,
|
|
&scaled_width, &scaled_height);
|
|
|
|
return gdk_pixbuf_scale_simple (pixbuf, scaled_width, scaled_height, GDK_INTERP_BILINEAR);
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_is_valid:
|
|
* @pixbuf: A GdkPixbuf
|
|
*
|
|
* Return value: A boolean indicating whether the given pixbuf is valid.
|
|
*
|
|
* A pixbuf is valid if:
|
|
*
|
|
* 1. It is non NULL
|
|
* 2. It is has non NULL pixel data.
|
|
* 3. It has width and height greater than 0.
|
|
*/
|
|
gboolean
|
|
eel_gdk_pixbuf_is_valid (const GdkPixbuf *pixbuf)
|
|
{
|
|
return ((pixbuf != NULL)
|
|
&& (gdk_pixbuf_get_pixels (pixbuf) != NULL)
|
|
&& (gdk_pixbuf_get_width (pixbuf) > 0)
|
|
&& (gdk_pixbuf_get_height (pixbuf) > 0));
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_get_dimensions:
|
|
* @pixbuf: A GdkPixbuf
|
|
*
|
|
* Return value: The dimensions of the pixbuf as a EelDimensions.
|
|
*
|
|
* This function is useful in code that uses libart rect
|
|
* intersection routines.
|
|
*/
|
|
EelDimensions
|
|
eel_gdk_pixbuf_get_dimensions (const GdkPixbuf *pixbuf)
|
|
{
|
|
EelDimensions dimensions;
|
|
|
|
g_return_val_if_fail (eel_gdk_pixbuf_is_valid (pixbuf), eel_dimensions_empty);
|
|
|
|
dimensions.width = gdk_pixbuf_get_width (pixbuf);
|
|
dimensions.height = gdk_pixbuf_get_height (pixbuf);
|
|
|
|
return dimensions;
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_fill_rectangle_with_color:
|
|
* @pixbuf: Target pixbuf to fill into.
|
|
* @area: Rectangle to fill.
|
|
* @color: The color to use.
|
|
*
|
|
* Fill the rectangle with the the given color.
|
|
*/
|
|
void
|
|
eel_gdk_pixbuf_fill_rectangle_with_color (GdkPixbuf *pixbuf,
|
|
EelIRect area,
|
|
guint32 color)
|
|
{
|
|
EelIRect target;
|
|
guchar red;
|
|
guchar green;
|
|
guchar blue;
|
|
guchar alpha;
|
|
guchar *pixels;
|
|
gboolean has_alpha;
|
|
guint pixel_offset;
|
|
guint rowstride;
|
|
guchar *row_offset;
|
|
int x;
|
|
int y;
|
|
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (pixbuf));
|
|
|
|
target = eel_gdk_pixbuf_intersect (pixbuf, 0, 0, area);
|
|
if (eel_irect_is_empty (&target)) {
|
|
return;
|
|
}
|
|
|
|
pixels = gdk_pixbuf_get_pixels (pixbuf);
|
|
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
|
|
has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
|
|
pixel_offset = has_alpha ? 4 : 3;
|
|
red = EEL_RGBA_COLOR_GET_R (color);
|
|
green = EEL_RGBA_COLOR_GET_G (color);
|
|
blue = EEL_RGBA_COLOR_GET_B (color);
|
|
alpha = EEL_RGBA_COLOR_GET_A (color);
|
|
|
|
row_offset = pixels + target.y0 * rowstride;
|
|
|
|
for (y = target.y0; y < target.y1; y++) {
|
|
guchar *offset = row_offset + (target.x0 * pixel_offset);
|
|
|
|
for (x = target.x0; x < target.x1; x++) {
|
|
*(offset++) = red;
|
|
*(offset++) = green;
|
|
*(offset++) = blue;
|
|
|
|
if (has_alpha) {
|
|
*(offset++) = alpha;
|
|
}
|
|
|
|
}
|
|
|
|
row_offset += rowstride;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
eel_gdk_pixbuf_save_to_file (const GdkPixbuf *pixbuf,
|
|
const char *file_name)
|
|
{
|
|
return gdk_pixbuf_save ((GdkPixbuf *) pixbuf,
|
|
file_name, "png", NULL, NULL);
|
|
}
|
|
|
|
void
|
|
eel_gdk_pixbuf_ref_if_not_null (GdkPixbuf *pixbuf_or_null)
|
|
{
|
|
if (pixbuf_or_null != NULL) {
|
|
g_object_ref (pixbuf_or_null);
|
|
}
|
|
}
|
|
|
|
void
|
|
eel_gdk_pixbuf_unref_if_not_null (GdkPixbuf *pixbuf_or_null)
|
|
{
|
|
if (pixbuf_or_null != NULL) {
|
|
g_object_unref (pixbuf_or_null);
|
|
}
|
|
}
|
|
|
|
void
|
|
eel_gdk_pixbuf_draw_to_drawable (const GdkPixbuf *pixbuf,
|
|
GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
int source_x,
|
|
int source_y,
|
|
EelIRect destination_area,
|
|
GdkRgbDither dither,
|
|
GdkPixbufAlphaMode alpha_compositing_mode,
|
|
int alpha_threshold)
|
|
{
|
|
EelDimensions dimensions;
|
|
EelIRect target;
|
|
EelIRect source;
|
|
int target_width;
|
|
int target_height;
|
|
int source_width;
|
|
int source_height;
|
|
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (pixbuf));
|
|
g_return_if_fail (drawable != NULL);
|
|
g_return_if_fail (gc != NULL);
|
|
g_return_if_fail (!eel_irect_is_empty (&destination_area));
|
|
g_return_if_fail (alpha_threshold > EEL_OPACITY_FULLY_TRANSPARENT);
|
|
g_return_if_fail (alpha_threshold <= EEL_OPACITY_FULLY_OPAQUE);
|
|
g_return_if_fail (alpha_compositing_mode >= GDK_PIXBUF_ALPHA_BILEVEL);
|
|
g_return_if_fail (alpha_compositing_mode <= GDK_PIXBUF_ALPHA_FULL);
|
|
|
|
dimensions = eel_gdk_pixbuf_get_dimensions (pixbuf);
|
|
|
|
g_return_if_fail (source_x >= 0);
|
|
g_return_if_fail (source_y >= 0);
|
|
g_return_if_fail (source_x < dimensions.width);
|
|
g_return_if_fail (source_y < dimensions.height);
|
|
|
|
/* Clip the destination area to the pixbuf dimensions; bail if no work */
|
|
target = eel_gdk_pixbuf_intersect (pixbuf,
|
|
destination_area.x0,
|
|
destination_area.y0,
|
|
destination_area);
|
|
if (eel_irect_is_empty (&target)) {
|
|
return;
|
|
}
|
|
|
|
/* Assign the source area */
|
|
source = eel_irect_assign (source_x,
|
|
source_y,
|
|
dimensions.width - source_x,
|
|
dimensions.height - source_y);
|
|
|
|
/* Adjust the target width if the source area is smaller than the
|
|
* source pixbuf dimensions */
|
|
target_width = target.x1 - target.x0;
|
|
target_height = target.y1 - target.y0;
|
|
source_width = source.x1 - source.x0;
|
|
source_height = source.y1 - source.y0;
|
|
|
|
target.x1 = target.x0 + MIN (target_width, source_width);
|
|
target.y1 = target.y0 + MIN (target_height, source_height);
|
|
|
|
gdk_draw_pixbuf (drawable, gc, (GdkPixbuf *) pixbuf,
|
|
source.x0,
|
|
source.y0,
|
|
target.x0,
|
|
target.y0,
|
|
target.x1 - target.x0,
|
|
target.y1 - target.y0,
|
|
dither,
|
|
0,
|
|
0);
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_draw_to_pixbuf:
|
|
* @pixbuf: The source pixbuf to draw.
|
|
* @destination_pixbuf: The destination pixbuf.
|
|
* @source_x: The source pixbuf x coordiate to composite from.
|
|
* @source_y: The source pixbuf y coordiate to composite from.
|
|
* @destination_area: The destination area within the destination pixbuf.
|
|
* This area will be clipped if invalid in any way.
|
|
*
|
|
* Copy one pixbuf onto another another.. This function has some advantages
|
|
* over plain gdk_pixbuf_copy_area():
|
|
*
|
|
* Composition paramters (source coordinate, destination area) are
|
|
* given in a way that is consistent with the rest of the extensions
|
|
* in this file. That is, it matches the declaration of
|
|
* eel_gdk_pixbuf_draw_to_pixbuf_alpha() and
|
|
* eel_gdk_pixbuf_draw_to_drawable() very closely.
|
|
*
|
|
* All values are clipped to make sure they are valid.
|
|
*
|
|
*/
|
|
void
|
|
eel_gdk_pixbuf_draw_to_pixbuf (const GdkPixbuf *pixbuf,
|
|
GdkPixbuf *destination_pixbuf,
|
|
int source_x,
|
|
int source_y,
|
|
EelIRect destination_area)
|
|
{
|
|
EelDimensions dimensions;
|
|
EelIRect target;
|
|
EelIRect source;
|
|
int target_width;
|
|
int target_height;
|
|
int source_width;
|
|
int source_height;
|
|
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (pixbuf));
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (destination_pixbuf));
|
|
g_return_if_fail (!eel_irect_is_empty (&destination_area));
|
|
|
|
dimensions = eel_gdk_pixbuf_get_dimensions (pixbuf);
|
|
|
|
g_return_if_fail (source_x >= 0);
|
|
g_return_if_fail (source_y >= 0);
|
|
g_return_if_fail (source_x < dimensions.width);
|
|
g_return_if_fail (source_y < dimensions.height);
|
|
|
|
/* Clip the destination area to the pixbuf dimensions; bail if no work */
|
|
target = eel_gdk_pixbuf_intersect (destination_pixbuf, 0, 0, destination_area);
|
|
if (eel_irect_is_empty (&target)) {
|
|
return;
|
|
}
|
|
|
|
/* Assign the source area */
|
|
source = eel_irect_assign (source_x,
|
|
source_y,
|
|
dimensions.width - source_x,
|
|
dimensions.height - source_y);
|
|
|
|
/* Adjust the target width if the source area is smaller than the
|
|
* source pixbuf dimensions */
|
|
target_width = target.x1 - target.x0;
|
|
target_height = target.y1 - target.y0;
|
|
source_width = source.x1 - source.x0;
|
|
source_height = source.y1 - source.y0;
|
|
|
|
target.x1 = target.x0 + MIN (target_width, source_width);
|
|
target.y1 = target.y0 + MIN (target_height, source_height);
|
|
|
|
gdk_pixbuf_copy_area (pixbuf,
|
|
source.x0,
|
|
source.y0,
|
|
target.x1 - target.x0,
|
|
target.y1 - target.y0,
|
|
destination_pixbuf,
|
|
target.x0,
|
|
target.y0);
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_draw_to_pixbuf_alpha:
|
|
* @pixbuf: The source pixbuf to draw.
|
|
* @destination_pixbuf: The destination pixbuf.
|
|
* @source_x: The source pixbuf x coordiate to composite from.
|
|
* @source_y: The source pixbuf y coordiate to composite from.
|
|
* @destination_area: The destination area within the destination pixbuf.
|
|
* This area will be clipped if invalid in any way.
|
|
* @opacity: The opacity of the drawn tiles where 0 <= opacity <= 255.
|
|
* @interpolation_mode: The interpolation mode. See <gdk-pixbuf.h>
|
|
*
|
|
* Composite one pixbuf over another. This function has some advantages
|
|
* over plain gdk_pixbuf_composite():
|
|
*
|
|
* Composition paramters (source coordinate, destination area) are
|
|
* given in a way that is consistent with the rest of the extensions
|
|
* in this file. That is, it matches the declaration of
|
|
* eel_gdk_pixbuf_draw_to_pixbuf() and
|
|
* eel_gdk_pixbuf_draw_to_drawable() very closely.
|
|
*
|
|
* All values are clipped to make sure they are valid.
|
|
*
|
|
* Workaround a limitation in gdk_pixbuf_composite() that does not allow
|
|
* the source (x,y) to be greater than (0,0)
|
|
*
|
|
*/
|
|
void
|
|
eel_gdk_pixbuf_draw_to_pixbuf_alpha (const GdkPixbuf *pixbuf,
|
|
GdkPixbuf *destination_pixbuf,
|
|
int source_x,
|
|
int source_y,
|
|
EelIRect destination_area,
|
|
int opacity,
|
|
GdkInterpType interpolation_mode)
|
|
{
|
|
EelDimensions dimensions;
|
|
EelIRect target;
|
|
EelIRect source;
|
|
int target_width;
|
|
int target_height;
|
|
int source_width;
|
|
int source_height;
|
|
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (pixbuf));
|
|
g_return_if_fail (eel_gdk_pixbuf_is_valid (destination_pixbuf));
|
|
g_return_if_fail (!eel_irect_is_empty (&destination_area));
|
|
g_return_if_fail (opacity >= EEL_OPACITY_FULLY_TRANSPARENT);
|
|
g_return_if_fail (opacity <= EEL_OPACITY_FULLY_OPAQUE);
|
|
g_return_if_fail (interpolation_mode >= GDK_INTERP_NEAREST);
|
|
g_return_if_fail (interpolation_mode <= GDK_INTERP_HYPER);
|
|
|
|
dimensions = eel_gdk_pixbuf_get_dimensions (pixbuf);
|
|
|
|
g_return_if_fail (source_x >= 0);
|
|
g_return_if_fail (source_y >= 0);
|
|
g_return_if_fail (source_x < dimensions.width);
|
|
g_return_if_fail (source_y < dimensions.height);
|
|
|
|
/* Clip the destination area to the pixbuf dimensions; bail if no work */
|
|
target = eel_gdk_pixbuf_intersect (destination_pixbuf, 0, 0, destination_area);
|
|
if (eel_irect_is_empty (&target)) {
|
|
return;
|
|
}
|
|
|
|
/* Assign the source area */
|
|
source = eel_irect_assign (source_x,
|
|
source_y,
|
|
dimensions.width - source_x,
|
|
dimensions.height - source_y);
|
|
|
|
/* Adjust the target width if the source area is smaller than the
|
|
* source pixbuf dimensions */
|
|
target_width = target.x1 - target.x0;
|
|
target_height = target.y1 - target.y0;
|
|
source_width = source.x1 - source.x0;
|
|
source_height = source.y1 - source.y0;
|
|
|
|
target.x1 = target.x0 + MIN (target_width, source_width);
|
|
target.y1 = target.y0 + MIN (target_height, source_height);
|
|
|
|
/* If the source point is not (0,0), then we need to create a sub pixbuf
|
|
* with only the source area. This is needed to work around a limitation
|
|
* in gdk_pixbuf_composite() that requires the source area to be (0,0). */
|
|
if (source.x0 != 0 || source.y0 != 0) {
|
|
EelIRect area;
|
|
int width;
|
|
int height;
|
|
|
|
width = dimensions.width - source.x0;
|
|
height = dimensions.height - source.y0;
|
|
|
|
area.x0 = source.x0;
|
|
area.y0 = source.y0;
|
|
area.x1 = area.x0 + width;
|
|
area.y1 = area.y0 + height;
|
|
|
|
pixbuf = eel_gdk_pixbuf_new_from_pixbuf_sub_area ((GdkPixbuf *) pixbuf, area);
|
|
} else {
|
|
g_object_ref (G_OBJECT (pixbuf));
|
|
}
|
|
|
|
gdk_pixbuf_composite (pixbuf,
|
|
destination_pixbuf,
|
|
target.x0,
|
|
target.y0,
|
|
target.x1 - target.x0,
|
|
target.y1 - target.y0,
|
|
target.x0,
|
|
target.y0,
|
|
1.0,
|
|
1.0,
|
|
interpolation_mode,
|
|
opacity);
|
|
|
|
g_object_unref (G_OBJECT (pixbuf));
|
|
}
|
|
|
|
static void
|
|
pixbuf_destroy_callback (guchar *pixels,
|
|
gpointer callback_data)
|
|
{
|
|
g_assert (pixels != NULL);
|
|
g_assert (callback_data != NULL);
|
|
|
|
g_object_unref (callback_data);
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_new_from_pixbuf_sub_area:
|
|
* @pixbuf: The source pixbuf.
|
|
* @area: The area within the source pixbuf to use for the sub pixbuf.
|
|
* This area needs to be contained within the bounds of the
|
|
* source pixbuf, otherwise it will be clipped to that.
|
|
*
|
|
* Return value: A newly allocated pixbuf that shares the pixel data
|
|
* of the source pixbuf in order to represent a sub area.
|
|
*
|
|
* Create a pixbuf from a sub area of another pixbuf. The resulting pixbuf
|
|
* will share the pixel data of the source pixbuf. Memory bookeeping is
|
|
* all taken care for the caller. All you need to do is gdk_pixbuf_unref()
|
|
* the resulting pixbuf to properly free resources.
|
|
*/
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_new_from_pixbuf_sub_area (GdkPixbuf *pixbuf,
|
|
EelIRect area)
|
|
{
|
|
GdkPixbuf *sub_pixbuf;
|
|
EelIRect target;
|
|
guchar *pixels;
|
|
|
|
g_return_val_if_fail (eel_gdk_pixbuf_is_valid (pixbuf), NULL);
|
|
g_return_val_if_fail (!eel_irect_is_empty (&area), NULL);
|
|
|
|
/* Clip the pixbuf by the given area; bail if no work */
|
|
target = eel_gdk_pixbuf_intersect (pixbuf, 0, 0, area);
|
|
if (eel_irect_is_empty (&target)) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Since we are going to be sharing the given pixbuf's data, we need
|
|
* to ref it. It will be unreffed in the destroy function above */
|
|
g_object_ref (pixbuf);
|
|
|
|
/* Compute the offset into the pixel data */
|
|
pixels =
|
|
gdk_pixbuf_get_pixels (pixbuf)
|
|
+ (target.y0 * gdk_pixbuf_get_rowstride (pixbuf))
|
|
+ (target.x0 * (gdk_pixbuf_get_has_alpha (pixbuf) ? 4 : 3));
|
|
|
|
/* Make a pixbuf pretending its real estate is the sub area */
|
|
sub_pixbuf = gdk_pixbuf_new_from_data (pixels,
|
|
GDK_COLORSPACE_RGB,
|
|
gdk_pixbuf_get_has_alpha (pixbuf),
|
|
8,
|
|
eel_irect_get_width (target),
|
|
eel_irect_get_height (target),
|
|
gdk_pixbuf_get_rowstride (pixbuf),
|
|
pixbuf_destroy_callback,
|
|
pixbuf);
|
|
|
|
return sub_pixbuf;
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_new_from_existing_buffer:
|
|
* @buffer: The existing buffer.
|
|
* @buffer_rowstride: The existing buffer's rowstride.
|
|
* @buffer_has_alpha: A boolean value indicating whether the buffer has alpha.
|
|
* @area: The area within the existing buffer to use for the pixbuf.
|
|
* This area needs to be contained within the bounds of the
|
|
* buffer, otherwise memory will be trashed.
|
|
*
|
|
* Return value: A newly allocated pixbuf that uses the existing buffer
|
|
* for its pixel data.
|
|
*
|
|
* Create a pixbuf from an existing buffer.
|
|
*
|
|
* The resulting pixbuf is only valid for as long as &buffer is valid. It is
|
|
* up to the caller to make sure they both exist in the same scope.
|
|
* Also, it is up to the caller to make sure that the given area is fully
|
|
* contained in the buffer, otherwise memory trashing will happen.
|
|
*/
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_new_from_existing_buffer (guchar *buffer,
|
|
int buffer_rowstride,
|
|
gboolean buffer_has_alpha,
|
|
EelIRect area)
|
|
{
|
|
GdkPixbuf *pixbuf;
|
|
guchar *pixels;
|
|
|
|
g_return_val_if_fail (buffer != NULL, NULL);
|
|
g_return_val_if_fail (buffer_rowstride > 0, NULL);
|
|
g_return_val_if_fail (!eel_irect_is_empty (&area), NULL);
|
|
|
|
/* Compute the offset into the buffer */
|
|
pixels =
|
|
buffer
|
|
+ (area.y0 * buffer_rowstride)
|
|
+ (area.x0 * (buffer_has_alpha ? 4 : 3));
|
|
|
|
pixbuf = gdk_pixbuf_new_from_data (pixels,
|
|
GDK_COLORSPACE_RGB,
|
|
buffer_has_alpha,
|
|
8,
|
|
eel_irect_get_width (area),
|
|
eel_irect_get_height (area),
|
|
buffer_rowstride,
|
|
NULL,
|
|
NULL);
|
|
|
|
return pixbuf;
|
|
}
|
|
|
|
/**
|
|
* eel_gdk_pixbuf_intersect:
|
|
* @pixbuf: A GdkPixbuf.
|
|
* @pixbuf_x: X coordinate of pixbuf.
|
|
* @pixbuf_y: Y coordinate of pixbuf.
|
|
* @rectangle: An EelIRect.
|
|
*
|
|
* Return value: The intersection of the pixbuf and the given rectangle.
|
|
*
|
|
*/
|
|
EelIRect
|
|
eel_gdk_pixbuf_intersect (const GdkPixbuf *pixbuf,
|
|
int pixbuf_x,
|
|
int pixbuf_y,
|
|
EelIRect rectangle)
|
|
{
|
|
EelIRect intersection;
|
|
EelIRect bounds;
|
|
EelDimensions dimensions;
|
|
|
|
g_return_val_if_fail (eel_gdk_pixbuf_is_valid (pixbuf), eel_irect_empty);
|
|
|
|
dimensions = eel_gdk_pixbuf_get_dimensions (pixbuf);
|
|
bounds = eel_irect_assign_dimensions (pixbuf_x, pixbuf_y, dimensions);
|
|
|
|
eel_irect_intersect (&intersection, &rectangle, &bounds);
|
|
|
|
/* In theory, this is not needed because a rectangle is empty
|
|
* regardless of how MUCH negative the dimensions are.
|
|
* However, to make debugging and self checks simpler, we
|
|
* consistenly return a standard empty rectangle.
|
|
*/
|
|
if (eel_irect_is_empty (&intersection)) {
|
|
return eel_irect_empty;
|
|
}
|
|
|
|
return intersection;
|
|
}
|
|
|
|
GdkPixbuf *
|
|
eel_gdk_pixbuf_scale_down (GdkPixbuf *pixbuf,
|
|
int dest_width,
|
|
int dest_height)
|
|
{
|
|
int source_width, source_height;
|
|
int s_x1, s_y1, s_x2, s_y2;
|
|
int s_xfrac, s_yfrac;
|
|
int dx, dx_frac, dy, dy_frac;
|
|
div_t ddx, ddy;
|
|
int x, y;
|
|
int r, g, b, a;
|
|
int n_pixels;
|
|
gboolean has_alpha;
|
|
guchar *dest, *src, *xsrc, *src_pixels;
|
|
GdkPixbuf *dest_pixbuf;
|
|
int pixel_stride;
|
|
int source_rowstride, dest_rowstride;
|
|
|
|
if (dest_width == 0 || dest_height == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
source_width = gdk_pixbuf_get_width (pixbuf);
|
|
source_height = gdk_pixbuf_get_height (pixbuf);
|
|
|
|
g_assert (source_width >= dest_width);
|
|
g_assert (source_height >= dest_height);
|
|
|
|
ddx = div (source_width, dest_width);
|
|
dx = ddx.quot;
|
|
dx_frac = ddx.rem;
|
|
|
|
ddy = div (source_height, dest_height);
|
|
dy = ddy.quot;
|
|
dy_frac = ddy.rem;
|
|
|
|
has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
|
|
source_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
|
|
src_pixels = gdk_pixbuf_get_pixels (pixbuf);
|
|
|
|
dest_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, has_alpha, 8,
|
|
dest_width, dest_height);
|
|
dest = gdk_pixbuf_get_pixels (dest_pixbuf);
|
|
dest_rowstride = gdk_pixbuf_get_rowstride (dest_pixbuf);
|
|
|
|
pixel_stride = (has_alpha)?4:3;
|
|
|
|
s_y1 = 0;
|
|
s_yfrac = -dest_height/2;
|
|
while (s_y1 < source_height) {
|
|
s_y2 = s_y1 + dy;
|
|
s_yfrac += dy_frac;
|
|
if (s_yfrac > 0) {
|
|
s_y2++;
|
|
s_yfrac -= dest_height;
|
|
}
|
|
|
|
s_x1 = 0;
|
|
s_xfrac = -dest_width/2;
|
|
while (s_x1 < source_width) {
|
|
s_x2 = s_x1 + dx;
|
|
s_xfrac += dx_frac;
|
|
if (s_xfrac > 0) {
|
|
s_x2++;
|
|
s_xfrac -= dest_width;
|
|
}
|
|
|
|
/* Average block of [x1,x2[ x [y1,y2[ and store in dest */
|
|
r = g = b = a = 0;
|
|
n_pixels = 0;
|
|
|
|
src = src_pixels + s_y1 * source_rowstride + s_x1 * pixel_stride;
|
|
for (y = s_y1; y < s_y2; y++) {
|
|
xsrc = src;
|
|
if (has_alpha) {
|
|
for (x = 0; x < s_x2-s_x1; x++) {
|
|
n_pixels++;
|
|
|
|
r += xsrc[3] * xsrc[0];
|
|
g += xsrc[3] * xsrc[1];
|
|
b += xsrc[3] * xsrc[2];
|
|
a += xsrc[3];
|
|
xsrc += 4;
|
|
}
|
|
} else {
|
|
for (x = 0; x < s_x2-s_x1; x++) {
|
|
n_pixels++;
|
|
r += *xsrc++;
|
|
g += *xsrc++;
|
|
b += *xsrc++;
|
|
}
|
|
}
|
|
src += source_rowstride;
|
|
}
|
|
|
|
if (has_alpha) {
|
|
if (a != 0) {
|
|
*dest++ = r / a;
|
|
*dest++ = g / a;
|
|
*dest++ = b / a;
|
|
*dest++ = a / n_pixels;
|
|
} else {
|
|
*dest++ = 0;
|
|
*dest++ = 0;
|
|
*dest++ = 0;
|
|
*dest++ = 0;
|
|
}
|
|
} else {
|
|
*dest++ = r / n_pixels;
|
|
*dest++ = g / n_pixels;
|
|
*dest++ = b / n_pixels;
|
|
}
|
|
|
|
s_x1 = s_x2;
|
|
}
|
|
s_y1 = s_y2;
|
|
dest += dest_rowstride - dest_width * pixel_stride;
|
|
}
|
|
|
|
return dest_pixbuf;
|
|
}
|
|
|
|
|
|
#if !defined (EEL_OMIT_SELF_CHECK)
|
|
|
|
static char *
|
|
check_average_value (int width, int height, const char* fill)
|
|
{
|
|
char c;
|
|
guint r, g, b, a;
|
|
gboolean alpha, gray;
|
|
int gray_tweak;
|
|
GdkPixbuf *pixbuf;
|
|
int x, y, rowstride, n_channels;
|
|
guchar *pixels;
|
|
guint32 average;
|
|
guchar v;
|
|
|
|
r = g = b = a = 0;
|
|
alpha = FALSE;
|
|
gray = FALSE;
|
|
gray_tweak = 0;
|
|
if (sscanf (fill, " %x,%x,%x,%x %c", &r, &g, &b, &a, &c) == 4) {
|
|
alpha = TRUE;
|
|
} else if (sscanf (fill, " %x,%x,%x %c", &r, &g, &b, &c) == 3) {
|
|
} else if (sscanf (fill, " gray%d %c", &gray_tweak, &c) == 1) {
|
|
gray = TRUE;
|
|
} else {
|
|
return g_strdup ("bad fill string format");
|
|
}
|
|
|
|
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, width, height);
|
|
|
|
pixels = gdk_pixbuf_get_pixels (pixbuf);
|
|
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
|
|
n_channels = gdk_pixbuf_get_n_channels (pixbuf);
|
|
|
|
if (!gray) {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
pixels [y * rowstride + x * n_channels + 0] = r;
|
|
pixels [y * rowstride + x * n_channels + 1] = g;
|
|
pixels [y * rowstride + x * n_channels + 2] = b;
|
|
if (alpha) {
|
|
pixels [y * rowstride + x * n_channels + 3] = a;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
v = ((x + y) & 1) ? 0x80 : 0x7F;
|
|
if (((x + y) & 0xFF) == 0)
|
|
v += gray_tweak;
|
|
pixels [y * rowstride + x * n_channels + 0] = v;
|
|
pixels [y * rowstride + x * n_channels + 1] = v;
|
|
pixels [y * rowstride + x * n_channels + 2] = v;
|
|
}
|
|
}
|
|
pixels [0] += gray_tweak;
|
|
pixels [1] += gray_tweak;
|
|
pixels [2] += gray_tweak;
|
|
}
|
|
|
|
average = eel_gdk_pixbuf_average_value (pixbuf);
|
|
g_object_unref (pixbuf);
|
|
|
|
return g_strdup_printf ("%02X,%02X,%02X,%02X",
|
|
(average >> 16) & 0xFF,
|
|
(average >> 8) & 0xFF,
|
|
average & 0xFF,
|
|
average >> 24);
|
|
}
|
|
|
|
void
|
|
eel_self_check_gdk_pixbuf_extensions (void)
|
|
{
|
|
GdkPixbuf *pixbuf;
|
|
EelIRect clip_area;
|
|
|
|
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 100, 100);
|
|
|
|
EEL_CHECK_BOOLEAN_RESULT (eel_gdk_pixbuf_is_valid (pixbuf), TRUE);
|
|
EEL_CHECK_BOOLEAN_RESULT (eel_gdk_pixbuf_is_valid (NULL), FALSE);
|
|
|
|
EEL_CHECK_DIMENSIONS_RESULT (eel_gdk_pixbuf_get_dimensions (pixbuf), 100, 100);
|
|
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, eel_gdk_pixbuf_whole_pixbuf), 0, 0, 100, 100);
|
|
|
|
clip_area = eel_irect_assign (0, 0, 0, 0);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 0, 0);
|
|
|
|
clip_area = eel_irect_assign (0, 0, 0, 0);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 0, 0);
|
|
|
|
clip_area = eel_irect_assign (0, 0, 100, 100);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 100, 100);
|
|
|
|
clip_area = eel_irect_assign (-10, -10, 100, 100);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 90, 90);
|
|
|
|
clip_area = eel_irect_assign (-10, -10, 110, 110);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 100, 100);
|
|
|
|
clip_area = eel_irect_assign (0, 0, 99, 99);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 99, 99);
|
|
|
|
clip_area = eel_irect_assign (0, 0, 1, 1);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 1, 1);
|
|
|
|
clip_area = eel_irect_assign (-1, -1, 1, 1);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 0, 0);
|
|
|
|
clip_area = eel_irect_assign (-1, -1, 2, 2);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 1, 1);
|
|
|
|
clip_area = eel_irect_assign (100, 100, 1, 1);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 0, 0);
|
|
|
|
clip_area = eel_irect_assign (101, 101, 1, 1);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 0, 0, 0, 0);
|
|
|
|
clip_area = eel_irect_assign (80, 0, 100, 100);
|
|
EEL_CHECK_RECTANGLE_RESULT (eel_gdk_pixbuf_intersect (pixbuf, 0, 0, clip_area), 80, 0, 100, 100);
|
|
|
|
g_object_unref (pixbuf);
|
|
|
|
/* No checks for empty pixbufs because GdkPixbuf doesn't seem to allow them. */
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "00,00,00"), "00,00,00,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "00,00,00,00"), "00,00,00,00");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "00,00,00,FF"), "00,00,00,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "01,01,01"), "01,01,01,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "FE,FE,FE"), "FE,FE,FE,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "FF,FF,FF"), "FF,FF,FF,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "FF,FF,FF,00"), "00,00,00,00");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1, 1, "11,22,33"), "11,22,33,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "00,00,00"), "00,00,00,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "00,00,00,00"), "00,00,00,00");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "00,00,00,FF"), "00,00,00,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "01,01,01"), "01,01,01,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "FE,FE,FE"), "FE,FE,FE,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "FF,FF,FF"), "FF,FF,FF,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "FF,FF,FF,00"), "00,00,00,00");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "11,22,33"), "11,22,33,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "gray -1"), "7F,7F,7F,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "gray 0"), "80,80,80,FF");
|
|
EEL_CHECK_STRING_RESULT (check_average_value (1000, 1000, "gray 1"), "80,80,80,FF");
|
|
}
|
|
|
|
#endif /* !EEL_OMIT_SELF_CHECK */
|
|
|