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//
// "$Id: Fl_Tiled_Image.cxx,v 1.1.2.6 2003/01/30 21:42:52 easysw Exp $"
//
// Tiled image code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2003 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 to "fltk-bugs@fltk.org".
//
#include <FL/Fl.H>
#include <FL/Fl_Tiled_Image.H>
#include <FL/fl_draw.H>
//
// 'Fl_Tiled_Image::Fl_Tiled_Image()' - Constructor.
//
// Use a width and height of 0 to tile the whole window/widget.
//
Fl_Tiled_Image::Fl_Tiled_Image(Fl_Image *i, // I - Image to tile
int W, // I - Width of tiled area
int H) : // I - Height of tiled area
Fl_Image(W,H,0) {
image_ = i;
alloc_image_ = 0;
if (W == 0) w(Fl::w());
if (H == 0) h(Fl::h());
}
//
// 'Fl_Tiled_Image::~Fl_Tiled_Image()' - Destructor.
//
Fl_Tiled_Image::~Fl_Tiled_Image() {
if (alloc_image_) delete image_;
}
//
// 'Fl_Tiled_Image::copy()' - Copy and resize a tiled image...
//
Fl_Image * // O - New image
Fl_Tiled_Image::copy(int W, // I - New width
int H) { // I - New height
if (W == w() && H == h()) return this;
else return new Fl_Tiled_Image(image_, W, H);
}
//
// 'Fl_Tiled_Image::color_average()' - Blend colors...
//
void
Fl_Tiled_Image::color_average(Fl_Color c, // I - Color to blend with
float i) { // I - Blend fraction
if (!alloc_image_) {
image_ = image_->copy();
alloc_image_ = 1;
}
image_->color_average(c, i);
}
//
// 'Fl_Tiled_Image::desaturate()' - Convert the image to grayscale...
//
void
Fl_Tiled_Image::desaturate() {
if (!alloc_image_) {
image_ = image_->copy();
alloc_image_ = 1;
}
image_->desaturate();
}
//
// 'Fl_Tiled_Image::draw()' - Draw a shared image...
//
void
Fl_Tiled_Image::draw(int X, // I - Starting X position
int Y, // I - Starting Y position
int W, // I - Width of area to be filled
int H, // I - Height of area to be filled
int cx, // I - "Source" X position
int cy) { // I - "Source" Y position
if (!image_->w() || !image_->h()) return;
if (W == 0) W = Fl::w();
if (H == 0) H = Fl::h();
fl_clip(X, Y, W, H);
X += cx;
Y += cy;
X = X - (X % image_->w());
Y = Y - (Y % image_->h());
W += X;
H += Y;
for (int yy = Y; yy < H; yy += image_->h())
for (int xx = X; xx < W; xx += image_->w())
image_->draw(xx, yy);
fl_pop_clip();
}
//
// End of "$Id: Fl_Tiled_Image.cxx,v 1.1.2.6 2003/01/30 21:42:52 easysw Exp $".
//
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