1 | // |
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2 | // "$Id$" |
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3 | // |
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4 | // Pixmap label support for the Fast Light Tool Kit (FLTK). |
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5 | // |
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6 | // Copyright 1998-2006 by Bill Spitzak and others. |
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7 | // |
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8 | // This library is free software; you can redistribute it and/or |
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9 | // modify it under the terms of the GNU Library General Public |
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10 | // License as published by the Free Software Foundation; either |
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11 | // version 2 of the License, or (at your option) any later version. |
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12 | // |
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13 | // This library is distributed in the hope that it will be useful, |
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14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | // Library General Public License for more details. |
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17 | // |
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18 | // You should have received a copy of the GNU Library General Public |
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19 | // License along with this library; if not, write to the Free Software |
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20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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21 | // USA. |
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22 | // |
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23 | // Please report all bugs and problems on the following page: |
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24 | // |
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25 | // http://www.fltk.org/str.php |
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26 | // |
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27 | |
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28 | #include <FL/Fl.H> |
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29 | #include <FL/Fl_Widget.H> |
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30 | #include "Fl_Type.h" |
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31 | #include "Fluid_Image.h" |
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32 | #include "../src/flstring.h" |
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33 | #include <stdio.h> |
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34 | #include <errno.h> |
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35 | #include <stdlib.h> |
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36 | #include <FL/filename.H> |
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37 | |
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38 | extern void goto_source_dir(); // in fluid.C |
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39 | extern void leave_source_dir(); // in fluid.C |
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40 | |
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41 | void Fluid_Image::image(Fl_Widget *o) { |
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42 | if (o->window() != o) o->image(img); |
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43 | } |
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44 | |
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45 | void Fluid_Image::deimage(Fl_Widget *o) { |
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46 | if (o->window() != o) o->deimage(img); |
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47 | } |
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48 | |
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49 | static int pixmap_header_written = 0; |
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50 | static int bitmap_header_written = 0; |
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51 | static int image_header_written = 0; |
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52 | |
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53 | void Fluid_Image::write_static() { |
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54 | if (!img) return; |
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55 | if (img->count() > 1) { |
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56 | // Write Pixmap data... |
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57 | write_c("\n"); |
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58 | if (pixmap_header_written != write_number) { |
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59 | write_c("#include <FL/Fl_Pixmap.H>\n"); |
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60 | pixmap_header_written = write_number; |
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61 | } |
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62 | write_c("static const char *%s[] = {\n", |
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63 | unique_id(this, "idata", fl_filename_name(name()), 0)); |
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64 | write_cstring(img->data()[0], strlen(img->data()[0])); |
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65 | |
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66 | int i; |
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67 | int ncolors, chars_per_color; |
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68 | sscanf(img->data()[0], "%*d%*d%d%d", &ncolors, &chars_per_color); |
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69 | |
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70 | if (ncolors < 0) { |
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71 | write_c(",\n"); |
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72 | write_cstring(img->data()[1], ncolors * -4); |
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73 | i = 2; |
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74 | } else { |
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75 | for (i = 1; i <= ncolors; i ++) { |
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76 | write_c(",\n"); |
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77 | write_cstring(img->data()[i], strlen(img->data()[i])); |
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78 | } |
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79 | } |
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80 | for (; i < img->count(); i ++) { |
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81 | write_c(",\n"); |
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82 | write_cstring(img->data()[i], img->w() * chars_per_color); |
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83 | } |
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84 | write_c("\n};\n"); |
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85 | write_c("static Fl_Pixmap %s(%s);\n", |
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86 | unique_id(this, "image", fl_filename_name(name()), 0), |
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87 | unique_id(this, "idata", fl_filename_name(name()), 0)); |
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88 | } else if (img->d() == 0) { |
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89 | // Write Bitmap data... |
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90 | write_c("\n"); |
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91 | if (bitmap_header_written != write_number) { |
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92 | write_c("#include <FL/Fl_Bitmap.H>\n"); |
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93 | bitmap_header_written = write_number; |
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94 | } |
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95 | write_c("static unsigned char %s[] =\n", |
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96 | unique_id(this, "idata", fl_filename_name(name()), 0)); |
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97 | write_cdata(img->data()[0], ((img->w() + 7) / 8) * img->h()); |
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98 | write_c(";\n"); |
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99 | write_c("static Fl_Bitmap %s(%s, %d, %d);\n", |
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100 | unique_id(this, "image", fl_filename_name(name()), 0), |
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101 | unique_id(this, "idata", fl_filename_name(name()), 0), |
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102 | img->w(), img->h()); |
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103 | } else { |
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104 | // Write image data... |
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105 | write_c("\n"); |
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106 | if (image_header_written != write_number) { |
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107 | write_c("#include <FL/Fl_Image.H>\n"); |
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108 | image_header_written = write_number; |
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109 | } |
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110 | write_c("static unsigned char %s[] =\n", |
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111 | unique_id(this, "idata", fl_filename_name(name()), 0)); |
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112 | write_cdata(img->data()[0], (img->w() * img->d() + img->ld()) * img->h()); |
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113 | write_c(";\n"); |
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114 | write_c("static Fl_RGB_Image %s(%s, %d, %d, %d, %d);\n", |
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115 | unique_id(this, "image", fl_filename_name(name()), 0), |
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116 | unique_id(this, "idata", fl_filename_name(name()), 0), |
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117 | img->w(), img->h(), img->d(), img->ld()); |
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118 | } |
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119 | } |
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120 | |
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121 | void Fluid_Image::write_code(const char *var, int inactive) { |
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122 | if (!img) return; |
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123 | write_c("%s%s->%s(%s);\n", indent(), var, inactive ? "deimage" : "image", |
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124 | unique_id(this, "image", fl_filename_name(name()), 0)); |
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125 | } |
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126 | |
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127 | |
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128 | //////////////////////////////////////////////////////////////// |
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129 | |
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130 | static Fluid_Image** images = 0; // sorted list |
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131 | static int numimages = 0; |
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132 | static int tablesize = 0; |
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133 | |
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134 | Fluid_Image* Fluid_Image::find(const char *iname) { |
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135 | if (!iname || !*iname) return 0; |
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136 | |
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137 | // first search to see if it exists already: |
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138 | int a = 0; |
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139 | int b = numimages; |
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140 | while (a < b) { |
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141 | int c = (a+b)/2; |
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142 | int i = strcmp(iname,images[c]->name_); |
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143 | if (i < 0) b = c; |
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144 | else if (i > 0) a = c+1; |
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145 | else return images[c]; |
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146 | } |
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147 | |
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148 | // no, so now see if the file exists: |
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149 | |
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150 | goto_source_dir(); |
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151 | FILE *f = fopen(iname,"rb"); |
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152 | if (!f) { |
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153 | read_error("%s : %s",iname,strerror(errno)); |
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154 | leave_source_dir(); |
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155 | return 0; |
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156 | } |
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157 | fclose(f); |
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158 | |
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159 | Fluid_Image *ret = new Fluid_Image(iname); |
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160 | |
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161 | if (!ret->img || !ret->img->w() || !ret->img->h()) { |
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162 | delete ret; |
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163 | ret = 0; |
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164 | read_error("%s : unrecognized image format", iname); |
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165 | } |
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166 | leave_source_dir(); |
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167 | if (!ret) return 0; |
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168 | |
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169 | // make a new entry in the table: |
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170 | numimages++; |
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171 | if (numimages > tablesize) { |
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172 | tablesize = tablesize ? 2*tablesize : 16; |
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173 | if (images) images = (Fluid_Image**)realloc(images, tablesize*sizeof(Fluid_Image*)); |
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174 | else images = (Fluid_Image**)malloc(tablesize*sizeof(Fluid_Image*)); |
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175 | } |
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176 | for (b = numimages-1; b > a; b--) images[b] = images[b-1]; |
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177 | images[a] = ret; |
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178 | |
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179 | return ret; |
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180 | } |
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181 | |
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182 | Fluid_Image::Fluid_Image(const char *iname) { |
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183 | name_ = strdup(iname); |
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184 | written = 0; |
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185 | refcount = 0; |
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186 | img = Fl_Shared_Image::get(iname); |
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187 | } |
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188 | |
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189 | void Fluid_Image::increment() { |
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190 | ++refcount; |
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191 | } |
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192 | |
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193 | void Fluid_Image::decrement() { |
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194 | --refcount; |
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195 | if (refcount > 0) return; |
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196 | delete this; |
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197 | } |
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198 | |
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199 | Fluid_Image::~Fluid_Image() { |
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200 | int a; |
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201 | if (images) { |
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202 | for (a = 0;; a++) if (images[a] == this) break; |
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203 | numimages--; |
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204 | for (; a < numimages; a++) images[a] = images[a+1]; |
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205 | } |
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206 | if (img) img->release(); |
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207 | free((void*)name_); |
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208 | } |
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209 | |
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210 | //////////////////////////////////////////////////////////////// |
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211 | |
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212 | #include <FL/Fl_File_Chooser.H> |
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213 | |
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214 | const char *ui_find_image_name; |
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215 | Fluid_Image *ui_find_image(const char *oldname) { |
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216 | goto_source_dir(); |
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217 | fl_file_chooser_ok_label("Use Image"); |
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218 | 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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219 | fl_file_chooser_ok_label(NULL); |
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220 | ui_find_image_name = name; |
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221 | Fluid_Image *ret = (name && *name) ? Fluid_Image::find(name) : 0; |
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222 | leave_source_dir(); |
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223 | return ret; |
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224 | } |
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225 | |
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226 | |
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227 | // |
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228 | // End of "$Id$". |
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229 | // |
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