4f4a8fc3c7
(to clarify static exception LGPL by changing license references) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8864 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
253 lines
7.0 KiB
C++
253 lines
7.0 KiB
C++
//
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// "$Id$"
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//
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// Pixmap label support 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. 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_Widget.H>
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#include "Fl_Type.h"
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#include "Fluid_Image.h"
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#include "../src/flstring.h"
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <FL/filename.H>
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extern void goto_source_dir(); // in fluid.C
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extern void leave_source_dir(); // in fluid.C
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void Fluid_Image::image(Fl_Widget *o) {
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if (o->window() != o) o->image(img);
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}
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void Fluid_Image::deimage(Fl_Widget *o) {
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if (o->window() != o) o->deimage(img);
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}
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static int pixmap_header_written = 0;
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static int bitmap_header_written = 0;
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static int image_header_written = 0;
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static int jpeg_header_written = 0;
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void Fluid_Image::write_static() {
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if (!img) return;
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if (img->count() > 1) {
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// Write Pixmap data...
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write_c("\n");
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if (pixmap_header_written != write_number) {
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write_c("#include <FL/Fl_Pixmap.H>\n");
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pixmap_header_written = write_number;
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}
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write_c("static const char *%s[] = {\n",
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unique_id(this, "idata", fl_filename_name(name()), 0));
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write_cstring(img->data()[0], strlen(img->data()[0]));
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int i;
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int ncolors, chars_per_color;
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sscanf(img->data()[0], "%*d%*d%d%d", &ncolors, &chars_per_color);
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if (ncolors < 0) {
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write_c(",\n");
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write_cstring(img->data()[1], ncolors * -4);
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i = 2;
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} else {
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for (i = 1; i <= ncolors; i ++) {
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write_c(",\n");
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write_cstring(img->data()[i], strlen(img->data()[i]));
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}
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}
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for (; i < img->count(); i ++) {
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write_c(",\n");
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write_cstring(img->data()[i], img->w() * chars_per_color);
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}
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write_c("\n};\n");
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write_c("static Fl_Pixmap %s(%s);\n",
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unique_id(this, "image", fl_filename_name(name()), 0),
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unique_id(this, "idata", fl_filename_name(name()), 0));
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} else if (img->d() == 0) {
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// Write Bitmap data...
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write_c("\n");
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if (bitmap_header_written != write_number) {
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write_c("#include <FL/Fl_Bitmap.H>\n");
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bitmap_header_written = write_number;
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}
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write_c("static unsigned char %s[] =\n",
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unique_id(this, "idata", fl_filename_name(name()), 0));
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write_cdata(img->data()[0], ((img->w() + 7) / 8) * img->h());
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write_c(";\n");
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write_c("static Fl_Bitmap %s(%s, %d, %d);\n",
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unique_id(this, "image", fl_filename_name(name()), 0),
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unique_id(this, "idata", fl_filename_name(name()), 0),
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img->w(), img->h());
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} else if (strcmp(fl_filename_ext(name()), ".jpg")==0) {
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// Write jpeg image data...
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write_c("\n");
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if (jpeg_header_written != write_number) {
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write_c("#include <FL/Fl_JPEG_Image.H>\n");
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jpeg_header_written = write_number;
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}
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write_c("static unsigned char %s[] =\n",
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unique_id(this, "idata", fl_filename_name(name()), 0));
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FILE *f = fl_fopen(name(), "rb");
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if (!f) {
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// message = "Can't include binary file. Can't open";
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} else {
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fseek(f, 0, SEEK_END);
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size_t nData = ftell(f);
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fseek(f, 0, SEEK_SET);
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if (nData) {
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char *data = (char*)calloc(nData, 1);
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if (fread(data, nData, 1, f)==0) { /* ignore */ }
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write_cdata(data, nData);
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free(data);
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}
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fclose(f);
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}
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write_c(";\n");
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write_c("static Fl_JPEG_Image %s(\"%s\", %s);\n",
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unique_id(this, "image", fl_filename_name(name()), 0),
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fl_filename_name(name()),
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unique_id(this, "idata", fl_filename_name(name()), 0));
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} else {
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// Write image data...
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write_c("\n");
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if (image_header_written != write_number) {
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write_c("#include <FL/Fl_Image.H>\n");
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image_header_written = write_number;
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}
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write_c("static unsigned char %s[] =\n",
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unique_id(this, "idata", fl_filename_name(name()), 0));
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write_cdata(img->data()[0], (img->w() * img->d() + img->ld()) * img->h());
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write_c(";\n");
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write_c("static Fl_RGB_Image %s(%s, %d, %d, %d, %d);\n",
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unique_id(this, "image", fl_filename_name(name()), 0),
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unique_id(this, "idata", fl_filename_name(name()), 0),
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img->w(), img->h(), img->d(), img->ld());
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}
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}
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void Fluid_Image::write_code(const char *var, int inactive) {
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if (!img) return;
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write_c("%s%s->%s(%s);\n", indent(), var, inactive ? "deimage" : "image",
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unique_id(this, "image", fl_filename_name(name()), 0));
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}
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////////////////////////////////////////////////////////////////
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static Fluid_Image** images = 0; // sorted list
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static int numimages = 0;
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static int tablesize = 0;
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Fluid_Image* Fluid_Image::find(const char *iname) {
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if (!iname || !*iname) return 0;
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// first search to see if it exists already:
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int a = 0;
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int b = numimages;
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while (a < b) {
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int c = (a+b)/2;
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int i = strcmp(iname,images[c]->name_);
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if (i < 0) b = c;
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else if (i > 0) a = c+1;
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else return images[c];
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}
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// no, so now see if the file exists:
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goto_source_dir();
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FILE *f = fl_fopen(iname,"rb");
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if (!f) {
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read_error("%s : %s",iname,strerror(errno));
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leave_source_dir();
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return 0;
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}
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fclose(f);
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Fluid_Image *ret = new Fluid_Image(iname);
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if (!ret->img || !ret->img->w() || !ret->img->h()) {
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delete ret;
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ret = 0;
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read_error("%s : unrecognized image format", iname);
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}
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leave_source_dir();
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if (!ret) return 0;
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// make a new entry in the table:
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numimages++;
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if (numimages > tablesize) {
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tablesize = tablesize ? 2*tablesize : 16;
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if (images) images = (Fluid_Image**)realloc(images, tablesize*sizeof(Fluid_Image*));
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else images = (Fluid_Image**)malloc(tablesize*sizeof(Fluid_Image*));
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}
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for (b = numimages-1; b > a; b--) images[b] = images[b-1];
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images[a] = ret;
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return ret;
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}
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Fluid_Image::Fluid_Image(const char *iname) {
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name_ = strdup(iname);
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written = 0;
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refcount = 0;
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img = Fl_Shared_Image::get(iname);
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}
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void Fluid_Image::increment() {
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++refcount;
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}
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void Fluid_Image::decrement() {
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--refcount;
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if (refcount > 0) return;
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delete this;
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}
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Fluid_Image::~Fluid_Image() {
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int a;
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if (images) {
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for (a = 0;; a++) if (images[a] == this) break;
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numimages--;
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for (; a < numimages; a++) images[a] = images[a+1];
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}
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if (img) img->release();
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free((void*)name_);
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}
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////////////////////////////////////////////////////////////////
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#include <FL/Fl_File_Chooser.H>
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const char *ui_find_image_name;
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Fluid_Image *ui_find_image(const char *oldname) {
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goto_source_dir();
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fl_file_chooser_ok_label("Use Image");
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const char *name = fl_file_chooser("Image?","Image Files (*.{bm,bmp,gif,jpg,pbm,pgm,png,ppm,xbm,xpm})",oldname,1);
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fl_file_chooser_ok_label(NULL);
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ui_find_image_name = name;
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Fluid_Image *ret = (name && *name) ? Fluid_Image::find(name) : 0;
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leave_source_dir();
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return ret;
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}
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//
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// End of "$Id$".
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//
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