eb70e46d2a
with Quickdraw worked) in src/Fl_Images.cxx. Changed test/unittest_images.cxx to use Fl_RGB_Image::draw() to draw images with alpha channel, because the current version of fl_draw_image() supports alpha channels only on Mac. Tested on Windows[1], Linux, and Mac. [1] Windows with GDI drawing doesn't work yet for gray+alpha (STR 2105). To do: Check, if fl_draw_image() should support alpha channel images on all platforms or not at all. The current documentation mentions only RGB and gray scale images. IMHO the behavior is undefined for values of abs(d) == 2 and abs(d) > 3. See also fl_draw_image_mono(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6773 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
112 lines
3.7 KiB
C++
112 lines
3.7 KiB
C++
//
|
|
// "$Id: $"
|
|
//
|
|
// Unit tests for the Fast Light Tool Kit (FLTK).
|
|
//
|
|
// Copyright 1998-2009 by Bill Spitzak and others.
|
|
//
|
|
// This 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.
|
|
//
|
|
// This 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 this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
// USA.
|
|
//
|
|
// Please report all bugs and problems on the following page:
|
|
//
|
|
// http://www.fltk.org/str.php
|
|
//
|
|
|
|
#include <FL/Fl_Box.H>
|
|
#include <FL/fl_draw.H>
|
|
|
|
//
|
|
//------- test the image drawing capabilities of this implementation ----------
|
|
//
|
|
class ImageTest : public Fl_Box {
|
|
public:
|
|
static Fl_Widget *create() {
|
|
int x, y;
|
|
uchar *dg, *dga, *drgb, *drgba;
|
|
dg = img_gray = (uchar*)malloc(128*128*1);
|
|
dga = img_gray_a = (uchar*)malloc(128*128*2);
|
|
drgb = img_rgb = (uchar*)malloc(128*128*3);
|
|
drgba = img_rgba = (uchar*)malloc(128*128*4);
|
|
for (y=0; y<128; y++) {
|
|
for (x=0; x<128; x++) {
|
|
*drgba++ = *drgb++ = *dga++ = *dg++ = y<<1;
|
|
*drgba++ = *drgb++ = x<<1;
|
|
*drgba++ = *drgb++ = (127-x)<<1;
|
|
*drgba++ = *dga++ = x+y;
|
|
}
|
|
}
|
|
i_rgba = new Fl_RGB_Image (img_rgba,128,128,4);
|
|
i_ga = new Fl_RGB_Image (img_gray_a,128,128,2);
|
|
return new ImageTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H);
|
|
}
|
|
static uchar *img_gray;
|
|
static uchar *img_gray_a;
|
|
static uchar *img_rgb;
|
|
static uchar *img_rgba;
|
|
static Fl_RGB_Image *i_rgba;
|
|
static Fl_RGB_Image *i_ga;
|
|
ImageTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) {
|
|
label("Testing Image Drawing\n\n"
|
|
"This test renders four images, two of them with a checker board\n"
|
|
"visible through the graphics. Color and gray gradients should be\n"
|
|
"visible. This does not test any image formats such as JPEG.");
|
|
align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP);
|
|
box(FL_BORDER_BOX);
|
|
}
|
|
void draw() {
|
|
Fl_Box::draw();
|
|
|
|
int xx = x()+10, yy = y()+10;
|
|
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
|
|
fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3);
|
|
fl_draw("RGB", xx+134, yy+64);
|
|
|
|
xx = x()+10; yy = y()+10+134;
|
|
fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
|
|
fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
|
|
fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
|
|
// fl_draw_image(img_rgba, xx+1, yy+1, 128, 128, 4);
|
|
i_rgba->draw(xx+1,yy+1);
|
|
fl_color(FL_BLACK); fl_draw("RGBA", xx+134, yy+64);
|
|
|
|
xx = x()+10+200; yy = y()+10;
|
|
fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
|
|
fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1);
|
|
fl_draw("Gray", xx+134, yy+64);
|
|
|
|
xx = x()+10+200; yy = y()+10+134;
|
|
fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
|
|
fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
|
|
fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
|
|
// fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128, 2);
|
|
i_ga->draw(xx+1,yy+1);
|
|
fl_color(FL_BLACK); fl_draw("Gray+Alpha", xx+134, yy+64);
|
|
}
|
|
};
|
|
|
|
uchar *ImageTest::img_gray = 0;
|
|
uchar *ImageTest::img_gray_a = 0;
|
|
uchar *ImageTest::img_rgb = 0;
|
|
uchar *ImageTest::img_rgba = 0;
|
|
Fl_RGB_Image *ImageTest::i_rgba = 0;
|
|
Fl_RGB_Image *ImageTest::i_ga = 0;
|
|
|
|
UnitTest images("drawing images", ImageTest::create);
|
|
|
|
//
|
|
// End of "$Id: $"
|
|
//
|