4327734e69
Used: vi `grep -r 'Copyright .*Spitzak' . | grep -v 2010 | grep -v '/\.svn' | cut -d: -f1` git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7913 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
//
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// "$Id$"
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//
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// Unit tests for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <FL/Fl_Box.H>
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#include <FL/fl_draw.H>
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// Note: currently (March 2010) fl_draw_image() supports transparency with
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// alpha channel only on Apple (Mac OS X), but Fl_RGB_Image->draw()
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// supports transparency on all platforms !
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//
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//------- test the image drawing capabilities of this implementation ----------
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//
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class ImageTest : public Fl_Box {
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public:
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static Fl_Widget *create() {
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int x, y;
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uchar *dg, *dga, *drgb, *drgba;
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dg = img_gray = (uchar*)malloc(128*128*1);
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dga = img_gray_a = (uchar*)malloc(128*128*2);
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drgb = img_rgb = (uchar*)malloc(128*128*3);
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drgba = img_rgba = (uchar*)malloc(128*128*4);
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for (y=0; y<128; y++) {
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for (x=0; x<128; x++) {
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*drgba++ = *drgb++ = *dga++ = *dg++ = y<<1;
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*drgba++ = *drgb++ = x<<1;
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*drgba++ = *drgb++ = (127-x)<<1;
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*drgba++ = *dga++ = x+y;
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}
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}
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i_rgba = new Fl_RGB_Image (img_rgba,128,128,4);
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i_ga = new Fl_RGB_Image (img_gray_a,128,128,2);
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return new ImageTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H);
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}
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static uchar *img_gray;
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static uchar *img_gray_a;
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static uchar *img_rgb;
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static uchar *img_rgba;
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static Fl_RGB_Image *i_rgba;
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static Fl_RGB_Image *i_ga;
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ImageTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) {
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label("Testing Image Drawing\n\n"
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"This test renders four images, two of them with a checker board\n"
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"visible through the graphics. Color and gray gradients should be\n"
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"visible. This does not test any image formats such as JPEG.");
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align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP);
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box(FL_BORDER_BOX);
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}
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void draw() {
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Fl_Box::draw();
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// top left: RGB
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int xx = x()+10, yy = y()+10;
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
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fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3);
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fl_draw("RGB", xx+134, yy+64);
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// bottom left: RGBA
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xx = x()+10; yy = y()+10+134;
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fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
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fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
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#ifdef __APPLE__
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fl_draw_image(img_rgba, xx+1, yy+1, 128, 128, 4); // Apple: okay w/alpha
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#else
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i_rgba->draw(xx+1,yy+1); // only Fl_RGB_Image->draw() works with alpha
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#endif
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fl_color(FL_BLACK); fl_draw("RGBA", xx+134, yy+64);
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// top right: Gray
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xx = x()+10+200; yy = y()+10;
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
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fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1);
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fl_draw("Gray", xx+134, yy+64);
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// bottom right: Gray+Alpha
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xx = x()+10+200; yy = y()+10+134;
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fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
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fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
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#ifdef __APPLE__
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fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128, 2); // Apple: okay w/alpha
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#else
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i_ga->draw(xx+1,yy+1); // only Fl_RGB_Image->draw() works with alpha
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#endif
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fl_color(FL_BLACK); fl_draw("Gray+Alpha", xx+134, yy+64);
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}
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};
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uchar *ImageTest::img_gray = 0;
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uchar *ImageTest::img_gray_a = 0;
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uchar *ImageTest::img_rgb = 0;
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uchar *ImageTest::img_rgba = 0;
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Fl_RGB_Image *ImageTest::i_rgba = 0;
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Fl_RGB_Image *ImageTest::i_ga = 0;
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UnitTest images("drawing images", ImageTest::create);
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//
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// End of "$Id$"
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//
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