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10 | reyssat | 1 | /* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
2 | * |
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3 | * This program is free software; you can redistribute it and/or modify |
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4 | * it under the terms of the GNU General Public License as published by |
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5 | * the Free Software Foundation; either version 2 of the License, or |
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6 | * (at your option) any later version. |
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7 | * |
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8 | * This program is distributed in the hope that it will be useful, |
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9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | * GNU General Public License for more details. |
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12 | * |
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13 | * You should have received a copy of the GNU General Public License |
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14 | * along with this program; if not, write to the Free Software |
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15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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16 | */ |
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17 | |||
18 | #include <errno.h> |
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19 | |||
20 | /* File opening: with security */ |
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21 | FILE *open4read(char *n) |
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22 | { |
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23 | char *p, *p1, *p2, namebuf[2048]; |
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24 | int t; |
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25 | FILE *f; |
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26 | n=find_word_start(n); |
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27 | if(*n==0) return NULL; |
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28 | p=getenv("flydraw_filebase"); |
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29 | p1=n+strlen(n)-4;if(p1<n || strcasecmp(p1,".gif")!=0) t=1; else t=0; |
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30 | if(p!=NULL && *p!=0) { |
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31 | char pbuf[MAX_LINELEN+1]; |
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32 | snprintf(pbuf,sizeof(pbuf),"%s",p); |
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33 | p=find_word_start(pbuf); if(strstr(p,"..")!=NULL) return NULL; |
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34 | if(*n=='/' || strstr(n,"..")!=NULL) return NULL; |
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35 | /* prohibit unusual file/dir names */ |
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36 | for(p1=p;*p1;p1++) |
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37 | if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL) |
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38 | return NULL; |
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39 | for(p1=n;*p1;p1++) |
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40 | if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL) |
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41 | return NULL; |
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42 | f=NULL; |
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43 | for(p1=p; *p1; p1=find_word_start(p2)) { |
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44 | p2=find_word_end(p1); |
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45 | if(*p2) *p2++=0; |
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46 | snprintf(namebuf,sizeof(namebuf),"%s/%s",p1,n); |
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47 | f=fopen(namebuf,"r"); if(f!=NULL) goto imgtype; |
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48 | } |
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49 | p1=getenv("w_wims_session"); |
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50 | if(p1!=NULL && strncmp(n,"insert",6)==0) { |
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51 | snprintf(namebuf,sizeof(namebuf),"../s2/%s/%s",p1,n); |
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52 | f=fopen(namebuf,"r"); |
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53 | } |
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54 | } |
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55 | else { |
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56 | snprintf(namebuf,sizeof(namebuf),"%s",n); |
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57 | f=fopen(namebuf,"r"); |
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58 | } |
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59 | imgtype: |
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60 | if(t && f!=NULL) { |
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61 | char tbuf[1024],sbuf[4096]; |
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62 | fclose(f); f=NULL; |
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63 | p1=getenv("TMPDIR"); if(p1==NULL || *p1==0) p1="."; |
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64 | snprintf(tbuf,sizeof(tbuf),"%s/drawfile_.gif",p1); |
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65 | snprintf(sbuf,sizeof(sbuf),"convert %s %s",namebuf,tbuf); |
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66 | system(sbuf); f=fopen(tbuf,"r"); |
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67 | } |
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68 | return f; |
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69 | } |
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70 | |||
71 | /* Does nothing; just a comment. */ |
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72 | void obj_comment(objparm *pm) |
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73 | { |
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74 | return; |
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75 | } |
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76 | |||
77 | /* define image size */ |
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78 | void obj_size(objparm *pm) |
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79 | { |
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80 | sizex=rint(pm->pd[0]); sizey=rint(pm->pd[1]); |
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81 | if(sizex<0 || sizey<0 || sizex>MAX_SIZE || sizey>MAX_SIZE) { |
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82 | error("bad_size"); return; |
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83 | } |
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84 | if(image!=NULL) { |
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85 | error("size_already_defined"); return; |
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86 | } |
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87 | image=gdImageCreate(sizex,sizey); |
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88 | if(image==NULL) error("image_creation_failure"); |
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89 | else { |
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90 | color_white=gdImageColorAllocate(image,255,255,255); |
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91 | color_black=gdImageColorAllocate(image,0,0,0); |
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92 | color_bounder=gdImageColorAllocate(image,1,2,3); |
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93 | } |
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94 | } |
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95 | |||
96 | /* new image */ |
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97 | void obj_new(objparm *pm) |
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98 | { |
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99 | if(image) { |
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100 | gdImageDestroy(image);image=NULL; |
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101 | } |
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102 | if(pm->pcnt>=2) obj_size(pm); |
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103 | else sizex=sizey=0; |
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104 | saved=0; |
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105 | } |
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106 | |||
107 | /* new image */ |
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108 | void obj_existing(objparm *pm) |
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109 | { |
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110 | FILE *inf; |
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111 | char *pp; |
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112 | |||
113 | if(image) { |
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114 | gdImageDestroy(image);image=NULL; |
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115 | } |
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116 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
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117 | inf=open4read(pp); |
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118 | if(inf==NULL) { |
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119 | error("file_not_exist"); return; |
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120 | } |
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121 | image=gdImageCreateFromGif(inf); fclose(inf); |
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122 | if(image==NULL) { |
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123 | error("bad_gif"); return; |
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124 | } |
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125 | sizex=image->sx; sizey=image->sy; |
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126 | saved=0; |
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127 | } |
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128 | |||
129 | /* solid line */ |
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130 | void obj_line(objparm *pm) |
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131 | { |
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132 | scale(pm->pd,pm->p,2); |
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133 | gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]); |
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1024 | bpr | 134 | if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]); |
10 | reyssat | 135 | } |
136 | |||
1024 | bpr | 137 | void _obj_arrow(objparm *pm, int twoside) |
10 | reyssat | 138 | { |
139 | int l,ii[6],xx,yy; |
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140 | double dx,dy,length,dd[6]; |
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141 | scale(pm->pd,pm->p,2); |
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142 | xx=ii[0]=pm->p[2];yy=ii[1]=pm->p[3]; |
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143 | l=pm->pd[4];if(l<0) l=0; if(l>200) l=200; |
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144 | scale2(pm->pd[0]-pm->pd[2],pm->pd[1]-pm->pd[3],&dx,&dy); |
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145 | length=sqrt(dx*dx+dy*dy); |
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146 | if(length<3 || l<5) goto stem; |
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147 | dd[0]=l*dx/length; dd[1]=l*dy/length; |
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148 | #define fat 0.27 |
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149 | dd[2]=dd[0]+dd[1]*fat; dd[3]=dd[1]-dd[0]*fat; |
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150 | dd[4]=dd[0]-dd[1]*fat; dd[5]=dd[1]+dd[0]*fat; |
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151 | ii[2]=rint(dd[2])+ii[0]; ii[3]=rint(dd[3])+ii[1]; |
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152 | ii[4]=rint(dd[4])+ii[0]; ii[5]=rint(dd[5])+ii[1]; |
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153 | gdImageFilledPolygon(image,(gdPointPtr) ii,3,pm->color[0]); |
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154 | xx=rint(dd[0])+ii[0];yy=rint(dd[1])+ii[1]; |
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1024 | bpr | 155 | if(twoside) { |
156 | ii[0]=pm->p[0]; ii[1]=pm->p[1]; |
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157 | ii[2]=-rint(dd[2])+ii[0]; ii[3]=-rint(dd[3])+ii[1]; |
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158 | ii[4]=-rint(dd[4])+ii[0]; ii[5]=-rint(dd[5])+ii[1]; |
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159 | gdImageFilledPolygon(image,(gdPointPtr) ii,3,pm->color[0]); |
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160 | } |
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10 | reyssat | 161 | stem: if(pm->fill) |
162 | gdImageDashedLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]); |
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163 | else |
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164 | gdImageLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]); |
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1024 | bpr | 165 | if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]); |
10 | reyssat | 166 | } |
167 | |||
1024 | bpr | 168 | /* Arrow */ |
169 | void obj_arrow(objparm *pm) |
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170 | { |
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171 | _obj_arrow(pm,0); |
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172 | } |
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173 | |||
174 | /* 2-sided arrow */ |
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175 | void obj_arrow2(objparm *pm) |
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176 | { |
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177 | _obj_arrow(pm,1); |
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178 | } |
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179 | |||
10 | reyssat | 180 | /* horizontal line */ |
181 | void obj_hline(objparm *pm) |
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182 | { |
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183 | scale(pm->pd,pm->p,1); |
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184 | if(pm->fill) |
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185 | gdImageDashedLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]); |
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186 | else |
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187 | gdImageLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]); |
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188 | } |
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189 | |||
190 | /* vertical line */ |
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191 | void obj_vline(objparm *pm) |
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192 | { |
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193 | scale(pm->pd,pm->p,1); |
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194 | if(pm->fill) |
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195 | gdImageDashedLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]); |
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196 | else |
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197 | gdImageLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]); |
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198 | } |
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199 | |||
200 | /* dashed line */ |
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201 | void obj_dline(objparm *pm) |
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202 | { |
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203 | scale(pm->pd,pm->p,2); |
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204 | gdImageDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], |
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205 | pm->color[0]); |
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206 | } |
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207 | |||
208 | /* parallel lines. |
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209 | * x1,y1,x2,y2,xv,yv,n,color */ |
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210 | void obj_parallel(objparm *pm) |
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211 | { |
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212 | int i, n, xi,yi; |
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213 | double xv,yv; |
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214 | n=pm->pd[6]; if(n<0) return; if(n>256) n=256; |
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1122 | bpr | 215 | scale(pm->pd,pm->p,3); |
10 | reyssat | 216 | scale2(pm->pd[4],pm->pd[5],&xv,&yv); |
217 | for(i=0;i<n;i++) { |
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218 | xi=rint(i*xv); yi=rint(i*yv); |
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219 | gdImageLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi, |
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220 | pm->color[0]); |
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1139 | bpr | 221 | if(vimg_enable) vimg_line(scale_buf[0]+i*(scale_buf[4]-transx), |
222 | scale_buf[1]+i*(scale_buf[5]-transy), |
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223 | scale_buf[2]+i*(scale_buf[4]-transx), |
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224 | scale_buf[3]+i*(scale_buf[5]-transy)); |
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10 | reyssat | 225 | } |
226 | } |
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227 | |||
228 | /* rectangle */ |
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229 | void obj_rect(objparm *pm) |
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230 | { |
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231 | int x1,y1,x2,y2; |
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232 | scale(pm->pd,pm->p,2); |
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233 | x1=min(pm->p[0],pm->p[2]); x2=max(pm->p[0],pm->p[2]); |
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234 | y1=min(pm->p[1],pm->p[3]); y2=max(pm->p[1],pm->p[3]); |
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235 | if(pm->fill) |
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236 | gdImageFilledRectangle(image,x1,y1,x2,y2,pm->color[0]); |
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237 | else |
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238 | gdImageRectangle(image,x1,y1,x2,y2,pm->color[0]); |
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1024 | bpr | 239 | if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]); |
10 | reyssat | 240 | } |
241 | |||
242 | /* square */ |
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243 | void obj_square(objparm *pm) |
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244 | { |
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245 | int w,h; |
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246 | scale(pm->pd,pm->p,1); |
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247 | w=rint(pm->pd[2]); h=rint(pm->pd[2]); |
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248 | if(pm->fill) |
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249 | gdImageFilledRectangle(image,pm->p[0],pm->p[1], |
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250 | pm->p[0]+w,pm->p[1]+h,pm->color[0]); |
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251 | else |
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252 | gdImageRectangle(image,pm->p[0],pm->p[1], |
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253 | pm->p[0]+w,pm->p[1]+h,pm->color[0]); |
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1024 | bpr | 254 | if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1], |
255 | scale_buf[0]+pm->pd[2],scale_buf[1]+pm->pd[2]); |
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10 | reyssat | 256 | } |
257 | |||
258 | /* triangle */ |
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259 | void obj_triangle(objparm *pm) |
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260 | { |
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261 | scale(pm->pd,pm->p,3); |
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262 | if(pm->fill) |
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263 | gdImageFilledPolygon(image,(gdPointPtr) pm->p,3,pm->color[0]); |
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264 | else |
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265 | gdImagePolygon(image,(gdPointPtr) pm->p,3,pm->color[0]); |
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1024 | bpr | 266 | if(vimg_enable) vimg_polyline(scale_buf,3,1); |
10 | reyssat | 267 | } |
268 | |||
269 | /* polygon */ |
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270 | void obj_poly(objparm *pm) |
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271 | { |
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272 | int cnt; |
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273 | cnt=(pm->pcnt)/2; |
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274 | scale(pm->pd,pm->p,cnt); |
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275 | if(pm->fill) |
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276 | gdImageFilledPolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]); |
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277 | else |
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278 | gdImagePolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]); |
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1024 | bpr | 279 | if(vimg_enable) vimg_polyline(scale_buf,cnt,1); |
10 | reyssat | 280 | } |
281 | |||
282 | /* rays */ |
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283 | void obj_rays(objparm *pm) |
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284 | { |
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285 | int i, n; |
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286 | n=(pm->pcnt)/2; |
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287 | scale(pm->pd,pm->p,n); |
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1024 | bpr | 288 | for(i=2;i<2*n;i+=2) { |
289 | gdImageLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]); |
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290 | if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1], |
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291 | scale_buf[i],scale_buf[i+1]); |
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292 | } |
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10 | reyssat | 293 | } |
294 | |||
295 | /* segments */ |
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296 | void obj_lines(objparm *pm) |
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297 | { |
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298 | int i, n; |
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299 | n=(pm->pcnt)/2; |
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300 | scale(pm->pd,pm->p,n); |
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1139 | bpr | 301 | for(i=2;i<2*n;i+=2) |
10 | reyssat | 302 | gdImageLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]); |
1024 | bpr | 303 | if(vimg_enable) vimg_polyline(scale_buf,n,0); |
10 | reyssat | 304 | } |
305 | |||
306 | /* segments */ |
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307 | void obj_dlines(objparm *pm) |
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308 | { |
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309 | int i, n; |
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310 | n=(pm->pcnt)/2; |
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311 | scale(pm->pd,pm->p,n); |
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312 | for(i=2;i<2*n;i+=2) |
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313 | gdImageDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]); |
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1024 | bpr | 314 | if(vimg_enable) vimg_polyline(scale_buf,n,0); |
10 | reyssat | 315 | } |
316 | |||
317 | /* points */ |
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318 | void obj_points(objparm *pm) |
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319 | { |
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320 | int i, n; |
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321 | n=(pm->pcnt)/2; |
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322 | scale(pm->pd,pm->p,n); |
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323 | for(i=0;i<2*n;i+=2) |
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324 | gdImageSetPixel(image,pm->p[i],pm->p[i+1],pm->color[0]); |
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325 | } |
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326 | |||
327 | /* lattice. |
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328 | * x0,y0,xv1,yv1,xv2,yv2,n1,n2,color */ |
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329 | void obj_lattice(objparm *pm) |
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330 | { |
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331 | int n1,n2,i1,i2,xi1,yi1,xi2,yi2; |
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332 | double xv1,xv2,yv1,yv2; |
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333 | n1=pm->pd[6];n2=pm->pd[7]; if(n1<0 || n2<0) return; |
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334 | if(n1>256) n1=256; if(n2>256) n2=256; |
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335 | scale(pm->pd,pm->p,1); |
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336 | scale2(pm->pd[2],pm->pd[3],&xv1,&yv1); |
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337 | scale2(pm->pd[4],pm->pd[5],&xv2,&yv2); |
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338 | for(i1=0;i1<n1;i1++) { |
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339 | xi1=rint(i1*xv1)+pm->p[0]; yi1=rint(i1*yv1)+pm->p[1]; |
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340 | for(i2=0;i2<n2;i2++) { |
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341 | xi2=i2*xv2+xi1;yi2=i2*yv2+yi1; |
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342 | gdImageSetPixel(image,xi2,yi2,pm->color[0]); |
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343 | } |
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344 | } |
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345 | } |
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346 | |||
347 | /* arc */ |
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348 | void obj_arc(objparm *pm) |
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349 | { |
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350 | scale(pm->pd,pm->p,1); |
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351 | pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale); |
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352 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], |
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353 | pm->pd[4],pm->pd[5],pm->color[0]); |
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1024 | bpr | 354 | if(vimg_enable) vimg_arc(scale_buf[0],scale_buf[1], |
355 | 0.5*pm->pd[2],0.5*pm->pd[3],pm->pd[4],pm->pd[5]); |
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10 | reyssat | 356 | } |
357 | |||
358 | /* Ellipse: centre 0,1, width 2, hight 3, color 4,5,6 */ |
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359 | void obj_ellipse(objparm *pm) |
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360 | { |
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361 | scale(pm->pd,pm->p,1); |
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362 | pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale); |
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363 | if(pm->fill) { |
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364 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360, |
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365 | color_bounder); |
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366 | gdImageFillToBorder(image,pm->p[0],pm->p[1], |
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367 | color_bounder,pm->color[0]); |
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368 | } |
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369 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]); |
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1024 | bpr | 370 | if(vimg_enable) vimg_ellipse(scale_buf[0],scale_buf[1],0.5*pm->pd[2],0.5*pm->pd[3]); |
10 | reyssat | 371 | } |
372 | |||
373 | /* Circle */ |
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374 | void obj_circle(objparm *pm) |
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375 | { |
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376 | scale(pm->pd,pm->p,1); |
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377 | pm->p[2]=rint(pm->pd[2]); pm->p[3]=rint(pm->pd[2]); |
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378 | if(pm->fill) { |
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379 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360, |
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380 | color_bounder); |
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381 | gdImageFillToBorder(image,pm->p[0],pm->p[1], |
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382 | color_bounder,pm->color[0]); |
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383 | } |
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384 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]); |
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385 | } |
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386 | |||
387 | /* flood fill */ |
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388 | void obj_fill(objparm *pm) |
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389 | { |
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390 | scale(pm->pd,pm->p,1); |
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391 | gdImageFill(image,pm->p[0],pm->p[1],pm->color[0]); |
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392 | } |
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393 | |||
394 | /* flood fill to border*/ |
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395 | void obj_fillb(objparm *pm) |
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396 | { |
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397 | scale(pm->pd,pm->p,1); |
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398 | gdImageFillToBorder(image,pm->p[0],pm->p[1],pm->color[0],pm->color[1]); |
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399 | } |
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400 | |||
401 | gdImagePtr himg; |
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402 | |||
403 | int makehatchimage(int x, int y, int px, int py, int col) |
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404 | { |
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405 | int c1,c2,r,g,b; |
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406 | gdImagePtr saveimg; |
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407 | himg=gdImageCreate(x,y); |
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408 | c1=gdImageGetPixel(image,px,py); |
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409 | r=gdImageRed(image,c1); g=gdImageGreen(image,c1); b=gdImageBlue(image,c1); |
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410 | if(r>=255) r--; else r++; if(g>=255) g--; else g++; if(b>=255) b--; else b++; |
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411 | c1=gdImageColorAllocate(himg,r,g,b); |
||
412 | r=gdImageRed(image,col); g=gdImageGreen(image,col); b=gdImageBlue(image,col); |
||
413 | c2=gdImageColorAllocate(himg,r,g,b); |
||
414 | if(width>1) { |
||
415 | savew=-1; saveimg=image; |
||
416 | image=himg; c2=widthcolor(width,c2); image=saveimg; |
||
417 | c2=gdBrushed; savew=-1; |
||
418 | } |
||
419 | return c2; |
||
420 | } |
||
421 | |||
422 | /* flood fill with hatching */ |
||
423 | void obj_hatchfill(objparm *pm) |
||
424 | { |
||
425 | int nx,ny,ax,ay, dir, c; |
||
426 | scale(pm->pd,pm->p,1); |
||
427 | nx=pm->pd[2]; ny=pm->pd[3]; ax=abs(nx); ay=abs(ny); |
||
428 | if(nx==0 && ny==0) {error("bad displacement vector"); return;} |
||
429 | if((nx>0 && ny>0) || (nx<0 && ny<0)) dir=1; else dir=-1; |
||
430 | if(ax==0) {ax=100; dir=2;} |
||
431 | if(ay==0) {ay=100; dir=3;} |
||
432 | c=makehatchimage(ax,ay,pm->p[0],pm->p[1],pm->color[0]); |
||
433 | switch(dir) { |
||
434 | case -1: { |
||
435 | gdImageLine(himg,0,ay-1,ax-1,0,c); |
||
436 | if(width>1) { |
||
437 | gdImageLine(himg,-ax,ay-1,-1,0,c); |
||
438 | gdImageLine(himg,ax,ay-1,2*ax-1,0,c); |
||
439 | gdImageLine(himg,0,-1,ax-1,-ay,c); |
||
440 | gdImageLine(himg,0,2*ay-1,ax-1,ay,c); |
||
441 | } |
||
442 | break; |
||
443 | } |
||
444 | case 1: { |
||
445 | gdImageLine(himg,0,0,ax-1,ay-1,c); |
||
446 | if(width>1) { |
||
447 | gdImageLine(himg,-ax,0,-1,ay-1,c); |
||
448 | gdImageLine(himg,ax,0,2*ax-1,ay-1,c); |
||
449 | gdImageLine(himg,0,-ay,ax-1,-1,c); |
||
450 | gdImageLine(himg,0,ay,ax-1,2*ay-1,c); |
||
451 | } |
||
452 | break; |
||
453 | } |
||
454 | case 2: gdImageLine(himg,0,ay/2,ax-1,ay/2,c); break; |
||
455 | case 3: gdImageLine(himg,ax/2,0,ax/2,ay-1,c); break; |
||
456 | } |
||
457 | gdImageSetTile(image,himg); |
||
458 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
459 | gdImageDestroy(himg); |
||
460 | if(tiled) gdImageSetTile(image,tileimg); |
||
461 | } |
||
462 | |||
463 | /* flood fill with grid */ |
||
464 | void obj_gridfill(objparm *pm) |
||
465 | { |
||
466 | int nx,ny, c; |
||
467 | scale(pm->pd,pm->p,1); |
||
468 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
469 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
470 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
471 | gdImageLine(himg,0,ny/2,nx-1,ny/2,c); gdImageLine(himg,nx/2,0,nx/2,ny-1,c); |
||
472 | gdImageSetTile(image,himg); |
||
473 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
474 | gdImageDestroy(himg); |
||
475 | if(tiled) gdImageSetTile(image,tileimg); |
||
476 | } |
||
477 | |||
478 | /* flood fill with double hatching */ |
||
479 | void obj_diafill(objparm *pm) |
||
480 | { |
||
481 | int nx,ny, c; |
||
482 | scale(pm->pd,pm->p,1); |
||
483 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
484 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
485 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
486 | gdImageLine(himg,0,0,nx-1,ny-1,c); gdImageLine(himg,0,ny-1,nx-1,0,c); |
||
487 | gdImageSetTile(image,himg); |
||
488 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
489 | gdImageDestroy(himg); |
||
490 | if(tiled) gdImageSetTile(image,tileimg); |
||
491 | } |
||
492 | |||
493 | /* flood fill with double hatching */ |
||
494 | void obj_dotfill(objparm *pm) |
||
495 | { |
||
496 | int nx,ny, c; |
||
497 | scale(pm->pd,pm->p,1); |
||
498 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
499 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
500 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
501 | gdImageSetPixel(himg,nx/2,ny/2,c); |
||
502 | gdImageSetTile(image,himg); |
||
503 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
504 | gdImageDestroy(himg); |
||
505 | if(tiled) gdImageSetTile(image,tileimg); |
||
506 | } |
||
507 | |||
508 | struct { |
||
509 | char *name; |
||
510 | gdFontPtr *fpt; |
||
511 | } fonttab[]={ |
||
512 | {"tiny", &gdFontTiny}, |
||
513 | {"small", &gdFontSmall}, |
||
514 | {"medium",&gdFontMediumBold}, |
||
515 | {"large", &gdFontLarge}, |
||
516 | {"giant", &gdFontGiant}, |
||
517 | {"huge", &gdFontGiant} |
||
518 | }; |
||
519 | |||
520 | #define fonttab_no (sizeof(fonttab)/sizeof(fonttab[0])) |
||
521 | |||
522 | /* string */ |
||
523 | void obj_string(objparm *pm) |
||
524 | { |
||
525 | char *pp, *pe, *p2; |
||
526 | int i; |
||
527 | pp=pm->str; pe=strchr(pp,','); if(pe==NULL) { |
||
528 | error("too_few_parms"); return; |
||
529 | } |
||
530 | *pe++=0; pp=find_word_start(pp); *find_word_end(pp)=0; |
||
531 | pe=find_word_start(pe); strip_trailing_spaces(pe); |
||
532 | if(*pp) { |
||
533 | for(i=0;i<fonttab_no && strcmp(pp,fonttab[i].name)!=0; i++); |
||
534 | if(i>=fonttab_no) i=1; |
||
535 | } |
||
536 | else i=1; |
||
537 | scale(pm->pd,pm->p,1); |
||
538 | if(*pe=='"') { |
||
539 | p2=strchr(pe+1,'"'); |
||
540 | if(p2 && *(p2+1)==0) {*p2=0; pe++;} |
||
541 | } |
||
542 | if(pm->fill) |
||
543 | gdImageStringUp(image,*(fonttab[i].fpt),pm->p[0],pm->p[1],pe, |
||
544 | pm->color[0]); |
||
545 | else |
||
546 | gdImageString(image,*(fonttab[i].fpt),pm->p[0],pm->p[1],pe, |
||
547 | pm->color[0]); |
||
548 | } |
||
549 | |||
550 | /* point */ |
||
551 | void obj_point(objparm *pm) |
||
552 | { |
||
553 | scale(pm->pd,pm->p,1); |
||
554 | gdImageSetPixel(image,pm->p[0],pm->p[1],pm->color[0]); |
||
555 | } |
||
556 | |||
557 | /* copy an image file */ |
||
558 | void obj_copy(objparm *pm) |
||
559 | { |
||
560 | char *pp; |
||
561 | FILE *inf; |
||
562 | gdImagePtr insimg; |
||
563 | |||
564 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
||
565 | inf=open4read(pp); |
||
566 | if(inf==NULL) { |
||
567 | error("file_not_exist"); return; |
||
568 | } |
||
569 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
570 | if(insimg==NULL) { |
||
571 | error("bad_gif"); return; |
||
572 | } |
||
573 | scale(pm->pd,pm->p,1); |
||
574 | if(pm->pd[2]<0 && pm->pd[3]<0 && pm->pd[4]<0 && pm->pd[5]<0) |
||
575 | gdImageCopy(image,insimg,pm->p[0],pm->p[1],0,0, |
||
576 | insimg->sx,insimg->sy); |
||
577 | else |
||
578 | gdImageCopy(image,insimg,pm->p[0],pm->p[1],pm->pd[2],pm->pd[3], |
||
579 | pm->pd[4]-pm->pd[2],pm->pd[5]-pm->pd[3]); |
||
580 | gdImageDestroy(insimg); |
||
581 | } |
||
582 | |||
583 | /* copy an image file, with resizing */ |
||
584 | void obj_copyresize(objparm *pm) |
||
585 | { |
||
586 | char *pp; |
||
587 | FILE *inf; |
||
588 | gdImagePtr insimg; |
||
589 | |||
590 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
||
591 | inf=open4read(pp); |
||
592 | if(inf==NULL) { |
||
593 | error("file_not_found"); return; |
||
594 | } |
||
595 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
596 | if(insimg==NULL) { |
||
597 | error("bad_gif"); return; |
||
598 | } |
||
599 | scale(pm->pd+4,pm->p+4,2); |
||
600 | if(pm->pd[0]<0 && pm->pd[1]<0 && pm->pd[2]<0 && pm->pd[3]<0) |
||
601 | gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],0,0, |
||
602 | pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1, |
||
603 | insimg->sx,insimg->sy); |
||
604 | else |
||
605 | gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],pm->pd[0],pm->pd[1], |
||
606 | pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1, |
||
607 | pm->pd[2]-pm->pd[0]+1,pm->pd[3]-pm->pd[1]+1); |
||
608 | gdImageDestroy(insimg); |
||
609 | } |
||
610 | |||
611 | /* set brush or tile */ |
||
612 | void obj_setbrush(objparm *pm) |
||
613 | { |
||
614 | char *pp; |
||
615 | FILE *inf; |
||
616 | gdImagePtr insimg; |
||
617 | |||
618 | pp=find_word_start(pm->str); *find_word_end(pp)=0; |
||
619 | inf=open4read(pp); if(inf==NULL) { |
||
620 | error("file_not_found"); return; |
||
621 | } |
||
622 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
623 | if(insimg==NULL) { |
||
624 | error("bad_gif"); return; |
||
625 | } |
||
626 | if(pm->fill) { |
||
627 | gdImageSetTile(image,insimg); tiled=1; tileimg=insimg; |
||
628 | } |
||
629 | else { |
||
630 | gdImageSetBrush(image,insimg);brushed=1; brushimg=insimg; |
||
631 | } |
||
632 | } |
||
633 | |||
634 | /* kill brush */ |
||
635 | void obj_killbrush(objparm *pm) |
||
636 | { |
||
637 | if(brushimg) gdImageDestroy(brushimg); |
||
638 | brushed=0; brushimg=NULL; |
||
639 | } |
||
640 | |||
641 | /* kill tile */ |
||
642 | void obj_killtile(objparm *pm) |
||
643 | { |
||
644 | if(tileimg) gdImageDestroy(tileimg); |
||
645 | tiled=0; tileimg=NULL; |
||
646 | } |
||
647 | |||
648 | /* set style */ |
||
649 | void obj_setstyle(objparm *pm) |
||
650 | { |
||
651 | int i,t; |
||
652 | t=pm->pcnt/3; if(t<=0) { |
||
653 | error("too_few_parms"); return; |
||
654 | } |
||
655 | for(i=0;i<t;i++) { |
||
656 | if(pm->pd[3*i]<0 || pm->pd[3*i+1]<0 || pm->pd[3*i+2]<0) |
||
657 | pm->p[i]=gdTransparent; |
||
658 | else |
||
659 | pm->p[i]=getcolor(pm->pd[3*i],pm->pd[3*i+1],pm->pd[3*i+2]); |
||
660 | } |
||
661 | gdImageSetStyle(image,pm->p,t); styled=1; |
||
662 | } |
||
663 | |||
664 | /* kill style */ |
||
665 | void obj_killstyle(objparm *pm) |
||
666 | { |
||
667 | styled=0; |
||
668 | } |
||
669 | |||
670 | /* set transparent */ |
||
671 | void obj_transp(objparm *pm) |
||
672 | { |
||
673 | gdImageColorTransparent(image,pm->color[0]); |
||
674 | } |
||
675 | |||
676 | /* set interlace */ |
||
677 | void obj_interlace(objparm *pm) |
||
678 | { |
||
679 | gdImageInterlace(image,1); |
||
680 | } |
||
681 | |||
682 | /* set linewidth */ |
||
683 | void obj_linewidth(objparm *pm) |
||
684 | { |
||
685 | if(pm->pd[0]<1 || pm->pd[0]>255) error("bad_parms"); |
||
686 | else width=pm->pd[0]; |
||
687 | } |
||
688 | |||
689 | /* set x range */ |
||
690 | void obj_xrange(objparm *pm) |
||
691 | { |
||
692 | double dd; |
||
693 | dd=pm->pd[1]-pm->pd[0]; |
||
694 | xstart=pm->pd[0]; xscale=sizex/dd; |
||
695 | } |
||
696 | |||
697 | /* set y range */ |
||
698 | void obj_yrange(objparm *pm) |
||
699 | { |
||
700 | double dd; |
||
701 | dd=pm->pd[1]-pm->pd[0]; |
||
702 | ystart=pm->pd[1]; yscale=-sizey/dd; |
||
703 | } |
||
704 | |||
705 | /* set x et y range */ |
||
706 | void obj_range(objparm *pm) |
||
707 | { |
||
708 | double d1,d2; |
||
709 | d1=pm->pd[1]-pm->pd[0]; d2=pm->pd[3]-pm->pd[2]; |
||
710 | xstart=pm->pd[0]; xscale=(sizex-1)/d1; |
||
711 | ystart=pm->pd[3]; yscale=-(sizey-1)/d2; |
||
712 | } |
||
713 | |||
714 | /* set t range */ |
||
715 | void obj_trange(objparm *pm) |
||
716 | { |
||
717 | double dd; |
||
718 | dd=pm->pd[1]-pm->pd[0]; |
||
719 | tstart=pm->pd[0]; tend=pm->pd[1]; |
||
720 | tranged=1; |
||
721 | } |
||
722 | |||
723 | /* set tstep (plotting step) */ |
||
724 | void obj_tstep(objparm *pm) |
||
725 | { |
||
726 | int dd; |
||
727 | dd=pm->pd[0]; |
||
728 | if(dd<3) { |
||
729 | error("bad_step"); return; |
||
730 | } |
||
731 | if(dd>2000) dd=2000; |
||
732 | tstep=dd; |
||
733 | } |
||
734 | |||
735 | /* set plotjump (plot jump break threashold) */ |
||
736 | void obj_plotjump(objparm *pm) |
||
737 | { |
||
738 | int dd; |
||
739 | dd=pm->pd[0]; |
||
740 | if(dd<3) dd=3; if(dd>MAX_SIZE) dd=MAX_SIZE; |
||
741 | plotjump=dd; |
||
742 | } |
||
743 | |||
744 | /* plot a curve, either parametric or explicit */ |
||
745 | void obj_plot(objparm *pm) |
||
746 | { |
||
747 | int i,j,n,dist,xx,yy,varpos; |
||
748 | char p1[MAX_LINELEN+1], p2[MAX_LINELEN+1]; |
||
749 | char *varn, *pp; |
||
750 | double dc[2],t,v; |
||
751 | int ic[2],oc[2]; |
||
752 | |||
753 | n=itemnum(pm->str); |
||
754 | if(n<1) { |
||
755 | error("bad_parms"); return; |
||
756 | } |
||
757 | fnd_item(pm->str,1,p1); fnd_item(pm->str,2,p2); |
||
758 | if(n==1 && !tranged) v=sizex/xscale/tstep; |
||
759 | else v=(tend-tstart)/tstep; |
||
760 | if(n==1) varn="x"; else varn="t"; |
||
761 | for(pp=varchr(p1,varn); pp; pp=varchr(pp,varn)) { |
||
762 | string_modify(p1,pp,pp+strlen(varn),EV_T); |
||
763 | pp+=strlen(EV_T); |
||
764 | } |
||
765 | for(pp=varchr(p2,varn); pp; pp=varchr(pp,varn)) { |
||
766 | string_modify(p2,pp,pp+strlen(varn),EV_T); |
||
767 | pp+=strlen(EV_T); |
||
768 | } |
||
769 | varpos=eval_getpos(EV_T); |
||
770 | if(varpos<0) return; /* unknown error */ |
||
771 | evalue_compile(p1); evalue_compile(p2); |
||
1024 | bpr | 772 | if(vimg_enable) vimg_plotstart(); |
10 | reyssat | 773 | for(i=j=0;i<=tstep;i++) { |
774 | if(n==1) { |
||
775 | if(tranged) t=tstart+i*v; else t=xstart+i*v; |
||
776 | eval_setval(varpos,t); dc[0]=t; dc[1]=evalue(p1); |
||
777 | } |
||
778 | else { |
||
779 | t=tstart+i*v; eval_setval(varpos,t); |
||
780 | dc[0]=evalue(p1); dc[1]=evalue(p2); |
||
781 | } |
||
782 | if(!finite(dc[0]) || !finite(dc[1])) ic[0]=ic[1]=-BOUND; |
||
783 | else scale(dc,ic,1); |
||
1024 | bpr | 784 | if(vimg_enable) vimg_plot1 (scale_buf[0],scale_buf[1]); |
10 | reyssat | 785 | if(j==0) { |
786 | gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); j++; |
||
787 | } |
||
788 | else { |
||
789 | xx=ic[0]-oc[0]; yy=ic[1]-oc[1]; |
||
790 | dist=sqrt(xx*xx+yy*yy); |
||
791 | if(dist>0) { |
||
792 | if(dist>plotjump || dist==1) |
||
793 | gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); |
||
794 | else |
||
795 | gdImageLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]); |
||
796 | |||
797 | } |
||
798 | } |
||
799 | memmove(oc,ic,sizeof(oc)); |
||
800 | } |
||
1024 | bpr | 801 | if(vimg_enable) vimg_plotend(); |
10 | reyssat | 802 | } |
803 | |||
804 | /* set levelcurve granularity */ |
||
805 | void obj_levelstep(objparm *pm) |
||
806 | { |
||
807 | int dd; |
||
808 | dd=pm->pd[0]; |
||
809 | if(dd<1) return; if(dd>16) dd=16; |
||
810 | lstep=dd; |
||
811 | } |
||
812 | |||
813 | /* level curve */ |
||
814 | void obj_levelcurve(objparm *pm) |
||
815 | { |
||
816 | char fn[MAX_LINELEN+1],tc[MAX_LINELEN+1]; |
||
817 | int n,i; |
||
818 | double d; |
||
819 | leveldata *ld; |
||
820 | |||
821 | ld=xmalloc(sizeof(leveldata)+16); |
||
822 | ld->xname="x"; ld->yname="y"; |
||
823 | ld->xsize=sizex; ld->ysize=sizey; ld->datacnt=0; |
||
824 | ld->xrange[0]=xstart; ld->xrange[1]=sizex/xscale+xstart; |
||
825 | ld->yrange[0]=sizey/yscale+ystart; ld->yrange[1]=ystart; |
||
826 | ld->grain=lstep; |
||
827 | fnd_item(pm->str,1,fn); ld->fn=fn; |
||
828 | n=itemnum(pm->str); |
||
829 | if(n<=1) {ld->levelcnt=1; ld->levels[0]=0;} |
||
830 | else { |
||
831 | if(n>LEVEL_LIM+1) n=LEVEL_LIM+1; |
||
832 | for(i=0;i<n-1;i++) { |
||
833 | fnd_item(pm->str,i+2,tc); |
||
834 | d=evalue(tc); |
||
835 | if(finite(d)) ld->levels[i]=d; else ld->levels[i]=0; |
||
836 | } |
||
837 | ld->levelcnt=n-1; |
||
838 | } |
||
839 | levelcurve(ld); |
||
840 | for(i=0;i<ld->datacnt;i++) { |
||
841 | gdImageSetPixel(image,ld->xdata[i],ld->ydata[i],pm->color[0]); |
||
842 | } |
||
843 | free(ld); |
||
844 | } |
||
845 | |||
846 | /* set animation step */ |
||
847 | void obj_animstep(objparm *pm) |
||
848 | { |
||
849 | animstep=pm->pd[0]; |
||
850 | setvar("animstep",pm->pd[0]); |
||
851 | } |
||
852 | |||
853 | /* Starts a line counting */ |
||
854 | void obj_linecount(objparm *pm) |
||
855 | { |
||
856 | linecnt=pm->pd[0]; |
||
857 | } |
||
858 | |||
859 | /* marks end of execution */ |
||
860 | void obj_end(objparm *pm) |
||
861 | { |
||
862 | error("successful_end_of_execution"); |
||
863 | } |
||
864 | |||
865 | /* output */ |
||
866 | void obj_output(objparm *pm) |
||
867 | { |
||
868 | char *p, namebuf[1024]; |
||
869 | p=find_word_start(pm->str); *find_word_end(p)=0; |
||
870 | snprintf(namebuf,sizeof(namebuf),"%s",imagefilename); |
||
871 | snprintf(imagefilename,sizeof(imagefilename),"%s",p); |
||
872 | output(); |
||
873 | snprintf(imagefilename,sizeof(imagefilename),"%s",namebuf); |
||
874 | } |
||
875 | |||
1024 | bpr | 876 | /* vimgfile */ |
877 | void obj_vimgfile(objparm *pm) |
||
878 | { |
||
879 | char *p; |
||
880 | p=find_word_start(pm->str); *find_word_end(p)=0; |
||
881 | snprintf(vimgfilename,sizeof(vimgfilename),"%s",p); |
||
882 | if(vimg_ready) vimg_close(); |
||
883 | } |
||
884 | |||
885 | /* vimg enable/disable */ |
||
886 | void obj_vimg(objparm *pm) |
||
887 | { |
||
888 | vimg_enable=pm->pd[0]; |
||
889 | if(vimg_enable>0 && vimg_ready==0) { |
||
890 | vimg_init(); |
||
891 | } |
||
892 | } |
||
893 | |||
10 | reyssat | 894 | /* Set affine transformation */ |
895 | void obj_affine(objparm *pm) |
||
896 | { |
||
897 | int i; |
||
898 | for(i=0;i<4;i++) matrix[i]=pm->pd[i]; |
||
899 | transx=pm->pd[4]; transy=pm->pd[5]; |
||
900 | transform=1; |
||
901 | } |
||
902 | |||
903 | /* Set affine transformation */ |
||
904 | void obj_rotation(objparm *pm) |
||
905 | { |
||
906 | double r; |
||
907 | r=M_PI*pm->pd[0]/180; |
||
908 | matrix[0]=matrix[3]=cos(r); |
||
909 | matrix[1]=-sin(r); matrix[2]=sin(r); |
||
910 | transform=1; |
||
911 | } |
||
912 | |||
913 | /* Set affine transformation */ |
||
914 | void obj_linear(objparm *pm) |
||
915 | { |
||
916 | int i; |
||
917 | for(i=0;i<4;i++) matrix[i]=pm->pd[i]; |
||
918 | transform=1; |
||
919 | } |
||
920 | |||
921 | /* Set affine transformation */ |
||
922 | void obj_translation(objparm *pm) |
||
923 | { |
||
924 | transx=pm->pd[0]; transy=pm->pd[1]; |
||
925 | } |
||
926 | |||
927 | /* Set affine transformation */ |
||
928 | void obj_killaffine(objparm *pm) |
||
929 | { |
||
930 | matrix[0]=matrix[3]=1; |
||
931 | matrix[1]=matrix[2]=transx=transy=0; |
||
932 | transform=0; |
||
933 | } |
||
934 | |||
935 | /* Set affine transformation */ |
||
936 | void obj_killlinear(objparm *pm) |
||
937 | { |
||
938 | matrix[0]=matrix[3]=1; |
||
939 | matrix[1]=matrix[2]=0; |
||
940 | transform=0; |
||
941 | } |
||
942 | |||
943 | /* Set affine transformation */ |
||
944 | void obj_killtranslation(objparm *pm) |
||
945 | { |
||
946 | transx=transy=0; |
||
947 | } |
||
948 | |||
949 | /***** Les modifs de Jean-Christophe Leger Fev 2006 *****/ |
||
950 | |||
951 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES, une liste de 4 nombres reels pour la matrice */ |
||
952 | void obj_setmatrix(objparm *pm) |
||
953 | { |
||
954 | int nummatrix = (int) (pm->pd[0]); |
||
955 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
956 | error("bad_matrix_number"); |
||
957 | return; |
||
958 | } |
||
959 | matrices_pavage[nummatrix][0] = pm->pd[1]; |
||
960 | matrices_pavage[nummatrix][1] = pm->pd[2]; |
||
961 | matrices_pavage[nummatrix][2] = pm->pd[3]; |
||
962 | matrices_pavage[nummatrix][3] = pm->pd[4]; |
||
963 | } |
||
964 | |||
965 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
966 | void obj_resetmatrix(objparm *pm) |
||
967 | { |
||
968 | int nummatrix = (int) (pm->pd[0]); |
||
969 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
970 | error("bad_matrix_number"); |
||
971 | return; |
||
972 | } |
||
973 | matrices_pavage[nummatrix][0] = 1; |
||
974 | matrices_pavage[nummatrix][1] = 0; |
||
975 | matrices_pavage[nummatrix][2] = 0; |
||
976 | matrices_pavage[nummatrix][3] = 1; |
||
977 | |||
978 | } |
||
979 | /* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 2 nombres reels pour le vecteur */ |
||
980 | void obj_setvector(objparm *pm) |
||
981 | { |
||
982 | int nummatrix = (int) (pm->pd[0]); |
||
983 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
984 | error("bad_vector_number"); |
||
985 | return; |
||
986 | } |
||
987 | vecteurs_pavage[nummatrix][0] = pm->pd[1]; |
||
988 | vecteurs_pavage[nummatrix][1] = pm->pd[2]; |
||
989 | } |
||
990 | |||
991 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
992 | void obj_resetvector(objparm *pm) |
||
993 | { |
||
994 | int nummatrix = (int) (pm->pd[0]); |
||
995 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
996 | error("bad_vector_number"); |
||
997 | return; |
||
998 | } |
||
999 | vecteurs_pavage[nummatrix][0] = 0; |
||
1000 | vecteurs_pavage[nummatrix][1] = 0; |
||
1001 | } |
||
1002 | |||
1003 | /* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 6 nombres reels pour la matrice et le vecteur */ |
||
1004 | void obj_settransform(objparm *pm) |
||
1005 | { |
||
1006 | int nummatrix = (int) (pm->pd[0]); |
||
1007 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
1008 | error("bad_vector_number"); |
||
1009 | return; |
||
1010 | } |
||
1011 | matrices_pavage[nummatrix][0] = pm->pd[1]; |
||
1012 | matrices_pavage[nummatrix][1] = pm->pd[2]; |
||
1013 | matrices_pavage[nummatrix][2] = pm->pd[3]; |
||
1014 | matrices_pavage[nummatrix][3] = pm->pd[4]; |
||
1015 | vecteurs_pavage[nummatrix][0] = pm->pd[5]; |
||
1016 | vecteurs_pavage[nummatrix][1] = pm->pd[6]; |
||
1017 | } |
||
1018 | |||
1019 | |||
1020 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
1021 | void obj_resettransform(objparm *pm) |
||
1022 | { |
||
1023 | int nummatrix = (int) (pm->pd[0]); |
||
1024 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
1025 | error("bad_vector_number"); |
||
1026 | return; |
||
1027 | } |
||
1028 | vecteurs_pavage[nummatrix][0] = 0; |
||
1029 | vecteurs_pavage[nummatrix][1] = 0; |
||
1030 | matrices_pavage[nummatrix][0] = 1; |
||
1031 | matrices_pavage[nummatrix][1] = 0; |
||
1032 | matrices_pavage[nummatrix][2] = 0; |
||
1033 | matrices_pavage[nummatrix][3] = 1; |
||
1034 | } |
||
1035 | |||
1036 | /* arguments: une liste de 6 nombres reels pour les coordonnees de l'origine et des vecteurs de base */ |
||
1037 | void obj_setparallelogram(objparm *pm) |
||
1038 | { |
||
1039 | int i; |
||
1040 | for(i=0;i<6;i++) parallogram_fonda[i]=pm->pd[i]; |
||
1041 | } |
||
1042 | |||
1043 | /* arguments :aucun */ |
||
1044 | void obj_resetparallelogram(objparm *pm) |
||
1045 | { |
||
1046 | parallogram_fonda[0]=0; |
||
1047 | parallogram_fonda[1]=0; |
||
1048 | parallogram_fonda[2]=100; |
||
1049 | parallogram_fonda[3]=0; |
||
1050 | parallogram_fonda[4]=0; |
||
1051 | parallogram_fonda[5]=100; |
||
1052 | } |
||
1053 | |||
1054 | /* argument : la liste des numeros des matrices a faire agir, le nom du fichier de l'image a inclure */ |
||
1055 | void obj_multicopy(objparm *pm) |
||
1056 | { |
||
1057 | char *pp,*pe,*cptr; |
||
1058 | FILE *inf; |
||
1059 | gdImagePtr insimg; |
||
1060 | int i,j; |
||
1061 | int imax,jmax; |
||
1062 | int c; /* la couleur reperee */ |
||
1063 | int mat; |
||
1064 | int nummatrices[JC_NB_MATRICES]; |
||
1065 | double pt[2]; /* les coordonnees math. du point repere dans le parallelogramme */ |
||
1066 | double ptr[2]; /* les coordonnees math. du point transforme */ |
||
1067 | int pti[2]; /* les coordonnees img du point a placer sur le canevas */ |
||
1068 | int t; |
||
1069 | /* gestion palette de couleur de l'image a inserer */ |
||
1070 | int colorMap[gdMaxColors]; |
||
1071 | int comptmat=0; /* combien de matrices en tout ? */ |
||
1072 | |||
1073 | for (i=0; (i<gdMaxColors); i++) { |
||
1074 | colorMap[i] = (-1); |
||
1075 | } |
||
1076 | |||
1077 | /* Gestion des parametres la liste est censee finir avec le nom du fichier */ |
||
1078 | t=pm->pcnt-1; /* il faut enlever le nom de fichier ! c'est le nombre de parametres en plus */ |
||
1079 | pp=find_word_start(pm->str); |
||
1080 | /* visiblement find_word_start n'arrive pas a trouver le dernier mot dans un contexte ou le nombre de parameters est variable |
||
1081 | * on cherche donc l'emplacement de la derniere virgule: |
||
1082 | * il y en a une car t>0, on retrouve ensuite le debut de mot |
||
1083 | */ |
||
1084 | for(pe=pp;*pe!=0;pe++);/* trouve la fin de la chaine */ |
||
1085 | if(t>0){ |
||
1086 | for(cptr = pe; cptr > pp && *cptr != ','; cptr--); |
||
1087 | pp=find_word_start(cptr+1); |
||
1088 | } |
||
1089 | pe=find_word_end(pp);*pe=0; /* strip junk final */ |
||
1090 | // printf("pp contient %s\n",pp); |
||
1091 | |||
1092 | |||
1093 | inf=open4read(pp); |
||
1094 | if(inf==NULL) { |
||
1095 | error("file_not_exist"); return; |
||
1096 | } |
||
1097 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
1098 | if(insimg==NULL) { |
||
1099 | error("bad_gif"); return; |
||
1100 | } |
||
1101 | |||
1102 | /* On recupere les numeros des matrices/vecteurs a faire agir, |
||
1103 | * s'il n'y en a pas, on les fait toutes agir |
||
1104 | */ |
||
1105 | for(i=0;i<t && i< JC_NB_MATRICES;i++) { |
||
1106 | if(pm->pd[i]>=1 && pm->pd[i]<=JC_NB_MATRICES){ |
||
1107 | nummatrices[comptmat] = pm->pd[i]; |
||
1108 | comptmat++; |
||
1109 | } |
||
1110 | } |
||
1111 | if(t<=0){ |
||
1112 | for(i=0;i<JC_NB_MATRICES;i++) { |
||
1113 | nummatrices[i] = i+1; |
||
1114 | } |
||
1115 | comptmat=JC_NB_MATRICES; |
||
1116 | } |
||
1117 | |||
1118 | |||
1119 | imax = gdImageSX(insimg); |
||
1120 | jmax = gdImageSY(insimg); |
||
1121 | |||
1122 | for(i=0;i<imax;i++){ |
||
1123 | for(j=0;j<jmax;j++){ |
||
1124 | int nc; |
||
1125 | c=gdImageGetPixel(insimg,i,j); |
||
1126 | /* Le code suivant est une copie du code dans gdImageCopy Added 7/24/95: support transparent copies */ |
||
1127 | if (gdImageGetTransparent(insimg) != c) { |
||
1128 | /* Have we established a mapping for this color? */ |
||
1129 | if (colorMap[c] == (-1)) { |
||
1130 | /* If it's the same image, mapping is trivial, dans notre cas ca n'arrive jamais... */ |
||
1131 | if (image == insimg) { |
||
1132 | nc = c; |
||
1133 | } else { |
||
1134 | /* First look for an exact match */ |
||
1135 | nc = gdImageColorExact(image, |
||
1136 | insimg->red[c], insimg->green[c], |
||
1137 | insimg->blue[c]); |
||
1138 | } |
||
1139 | if (nc == (-1)) { |
||
1140 | /* No, so try to allocate it */ |
||
1141 | nc = gdImageColorAllocate(image, |
||
1142 | insimg->red[c], insimg->green[c], |
||
1143 | insimg->blue[c]); |
||
1144 | /* If we're out of colors, go for the |
||
1145 | closest color */ |
||
1146 | if (nc == (-1)) { |
||
1147 | nc = gdImageColorClosest(image, |
||
1148 | insimg->red[c], insimg->green[c], |
||
1149 | insimg->blue[c]); |
||
1150 | } |
||
1151 | } |
||
1152 | colorMap[c] = nc; |
||
1153 | } |
||
1154 | |||
1155 | pt[0]= i*(parallogram_fonda[2])/(imax-1)+(jmax-j)*(parallogram_fonda[4])/(jmax-1)+parallogram_fonda[0]; |
||
1156 | pt[1]= i*(parallogram_fonda[3])/(imax-1)+(jmax-j)*(parallogram_fonda[5])/(jmax-1)+parallogram_fonda[1]; |
||
1157 | for(mat=0;mat<comptmat;mat++){ |
||
1158 | double *matricecourante = matrices_pavage[nummatrices[mat]]; |
||
1159 | double *vecteurcourant = vecteurs_pavage[nummatrices[mat]]; |
||
1160 | ptr[0] = matricecourante[0]*pt[0]+matricecourante[1]*pt[1]+vecteurcourant[0]; |
||
1161 | ptr[1] = matricecourante[2]*pt[0]+matricecourante[3]*pt[1]+vecteurcourant[1]; |
||
1162 | scale(ptr,pti,1); |
||
1163 | gdImageSetPixel(image,pti[0],pti[1],colorMap[c]); |
||
1164 | } |
||
1165 | } |
||
1166 | } |
||
1167 | } |
||
1168 | gdImageDestroy(insimg); |
||
1169 | } |
||
1170 | |||
1171 | /**** Fin modifs JC Fev 06 ******/ |
||
1172 | |||
1173 | /* get color from value */ |
||
1174 | int calc_color(char *p, struct objtab *o) |
||
1175 | { |
||
1176 | int k, cc[3]; |
||
1177 | char buf[MAX_LINELEN+1]; |
||
1178 | for(k=0;k<3;k++) { |
||
1179 | fnd_item(p,k+1,buf); |
||
1180 | cc[k]=evalue(buf); |
||
1181 | } |
||
1182 | collapse_item(p,3); |
||
1183 | if(cc[0]==-1 && cc[1]==-1 && cc[2]==-255) { |
||
1184 | |||
1185 | if(brushed && o->subst&1) return gdBrushed; |
||
1186 | else return color_black; |
||
1187 | } |
||
1188 | if(cc[0]==-1 && cc[1]==-255 && cc[2]==-1) { |
||
1189 | if(styled && o->subst&2) return gdStyled; |
||
1190 | else return color_black; |
||
1191 | } |
||
1192 | if(cc[0]==-255 && cc[1]==-1 && cc[2]==-1) { |
||
1193 | if(tiled && o->fill_tag==1) return gdTiled; |
||
1194 | else return color_black; |
||
1195 | } |
||
1196 | return getcolor(cc[0],cc[1],cc[2]); |
||
1197 | } |
||
1198 | |||
1199 | /* Routine to parse parameters */ |
||
1200 | int parse_parms(char *p,objparm *pm,struct objtab *o) |
||
1201 | { |
||
1202 | char buf[MAX_LINELEN+1]; |
||
1203 | char *p1, *p2; |
||
1204 | int j,t,c,c1,c2; |
||
1205 | |||
1206 | c=o->color_pos;c1=c2=0; |
||
1207 | pm->color[0]=pm->color[1]=0; |
||
1208 | if(c>0) c1=c; if(c<0) c2=-c; c=c1+c2; |
||
1209 | t=itemnum(p);if(t<o->required_parms+3*c) return -1; |
||
1210 | if(c1>0 && t>o->required_parms+3*c) t=o->required_parms+3*c; |
||
1211 | pm->pcnt=t-3*c; |
||
1212 | if(pm->pcnt>MAX_PARMS) pm->pcnt=MAX_PARMS; |
||
1213 | if(c2>0) { |
||
1214 | for(j=0;j<2 && j<c2; j++) pm->color[j]=calc_color(p,o); |
||
1215 | } |
||
1216 | snprintf(buf,sizeof(buf),"%s",p); |
||
1217 | for(j=0, p1=buf; j<pm->pcnt; j++, p1=p2) { |
||
1218 | p2=find_item_end(p1); if(*p2) *p2++=0; |
||
1219 | p1=find_word_start(p1); |
||
1220 | if(*p1) pm->pd[j]=evalue(p1); else pm->pd[j]=0; |
||
1221 | if(!finite(pm->pd[j])) { |
||
1222 | if(j<o->required_parms) return -1; |
||
1223 | else {pm->pd[j]=0;break;} |
||
1224 | } |
||
1225 | } |
||
1226 | collapse_item(p,o->required_parms); |
||
1227 | if(c1>0) { |
||
1228 | for(j=0;j<c1 && j<2; j++) pm->color[j]=calc_color(p,o); |
||
1229 | } |
||
1230 | if(width>1 && o->subst&1 && pm->color[0]!=gdBrushed |
||
1231 | && pm->color[0]!=gdStyled && pm->color[0]!=gdTiled) { |
||
1232 | pm->color[1]=pm->color[0]; |
||
1233 | pm->color[0]=widthcolor(width,pm->color[0]); |
||
1234 | } |
||
1235 | pm->fill=o->fill_tag; |
||
3718 | reyssat | 1236 | ovlstrcpy(pm->str,p); return 0; |
10 | reyssat | 1237 | } |
1238 | |||
1239 | /* Execute a command. Returns 0 if OK. */ |
||
1240 | int obj_main(char *p) |
||
1241 | { |
||
1242 | int i; |
||
1243 | char *pp,*name,*pt; |
||
1244 | char tbuf2[MAX_LINELEN+1]; |
||
1245 | struct objparm pm; |
||
1246 | |||
1247 | p=find_word_start(p); |
||
1248 | if(*p==exec_prefix_char || *p==0) return 0; /* comment */ |
||
1249 | name=p; |
||
1250 | pp=find_name_end(p); |
||
1251 | pt=find_word_start(pp); if(*pt=='=') *pt=' '; |
||
1252 | if(*pt==':' && *(pt+1)=='=') *pt=*(pt+1)=' '; |
||
1253 | pp=find_word_end(p); |
||
1254 | if(*pp!=0) { |
||
1255 | *(pp++)=0; pp=find_word_start(pp); |
||
1256 | } |
||
1257 | if(strlen(p)==1 || (strlen(p)==2 && isdigit(*(p+1)))) { |
||
1258 | setvar(p,evalue(pp)); return 0; |
||
1259 | } |
||
1260 | i=search_list(objtab,obj_no,sizeof(objtab[0]),name); |
||
1261 | if(i<0) { |
||
1262 | error("bad_cmd"); return 1; |
||
1263 | } |
||
1264 | if(image==NULL && (objtab[i].color_pos || objtab[i].required_parms>2)) { |
||
1265 | error("image_not_defined"); return 1; |
||
1266 | } |
||
3718 | reyssat | 1267 | ovlstrcpy(tbuf2,pp); |
10 | reyssat | 1268 | if(objtab[i].color_pos || objtab[i].routine==obj_setstyle) { |
1269 | substit(tbuf2); |
||
1270 | } |
||
1271 | if(parse_parms(tbuf2,&pm,objtab+i)!=0) error("bad_parms"); |
||
1272 | else objtab[i].routine(&pm); |
||
1273 | return 0; |
||
1274 | } |
||
1275 |