dbde470f8d
Useful for printing, PostScript or PDF output, or retina displays. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10615 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
//
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// "$Id$"
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//
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// A shared image test program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2015 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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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.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Double_Window.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Shared_Image.H>
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#include <FL/Fl_Printer.H>
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#include <string.h>
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#include <errno.h>
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#include <FL/Fl_File_Chooser.H>
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#include <FL/fl_message.H>
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Fl_Box *b;
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Fl_Double_Window *w;
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Fl_Shared_Image *img;
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static char name[1024];
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void load_file(const char *n) {
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if (img) {
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((Fl_Shared_Image*)b->image())->release();
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img = 0L;
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}
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if (fl_filename_isdir(n)) {
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b->label("@fileopen"); // show a generic folder
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b->labelsize(64);
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b->labelcolor(FL_LIGHT2);
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b->image(0);
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b->redraw();
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return;
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}
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Fl_Shared_Image *img2 = Fl_Shared_Image::get(n);
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if (!img2) {
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b->label("@filenew"); // show an empty document
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b->labelsize(64);
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b->labelcolor(FL_LIGHT2);
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b->image(0);
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b->redraw();
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return;
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}
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img = img2;
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b->labelsize(14);
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b->labelcolor(FL_FOREGROUND_COLOR);
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#if FLTK_ABI_VERSION >= 10304
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b->image(img);
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img->scale(b->w(), b->h());
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#else
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if (img->w() <= b->w() && img->h() <= b->h()) b->image(img);
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else {
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float fw = img->w() / float(b->w());
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float fh = img->h() / float(b->h());
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float f = fw > fh ? fw : fh;
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b->image(img->copy(img->w()/f, img->h()/f));
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img->release();
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}
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#endif
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b->label(NULL);
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b->redraw();
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}
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void file_cb(const char *n) {
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if (!strcmp(name,n)) return;
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load_file(n);
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strcpy(name,n);
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w->label(name);
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}
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void button_cb(Fl_Widget *,void *) {
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fl_file_chooser_callback(file_cb);
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const char *fname = fl_file_chooser("Image file?","*.{bm,bmp,gif,jpg,pbm,pgm,png,ppm,xbm,xpm}", name);
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puts(fname ? fname : "(null)"); fflush(stdout);
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fl_file_chooser_callback(0);
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}
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void print_cb(Fl_Widget *widget, void *) {
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Fl_Printer printer;
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int width, height;
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if (printer.start_job(1)) return;
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printer.start_page();
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printer.printable_rect(&width, &height);
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float fw = widget->window()->decorated_w() / float(width);
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float fh = widget->window()->decorated_h() / float(height);
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if (fh > fw) fw = fh;
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printer.scale(1/fw);
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printer.print_window(widget->window());
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printer.end_page();
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printer.end_job();
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}
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int dvisual = 0;
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int arg(int, char **argv, int &i) {
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if (argv[i][1] == '8') {dvisual = 1; i++; return 1;}
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return 0;
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}
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int main(int argc, char **argv) {
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int i = 1;
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fl_register_images();
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Fl::args(argc,argv,i,arg);
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Fl_Double_Window window(400,450); ::w = &window;
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Fl_Box b(10,45,380,380); ::b = &b;
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b.box(FL_THIN_DOWN_BOX);
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b.align(FL_ALIGN_INSIDE|FL_ALIGN_CENTER|FL_ALIGN_CLIP);
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Fl_Button button(150,5,100,30,"load");
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button.callback(button_cb);
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if (!dvisual) Fl::visual(FL_RGB);
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if (argv[1]) load_file(argv[1]);
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window.resizable(b);
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Fl_Button print(300,425,50,25,"Print");
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print.callback(print_cb);
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window.show(argc,argv);
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return Fl::run();
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}
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//
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// End of "$Id$".
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//
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