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2 | toby | 1 | /* |
18 | toby | 2 | This file is part of Filter Foundry, a filter plugin for Adobe Photoshop |
2 | toby | 3 | Copyright (C) 2003-5 Toby Thain, toby@telegraphics.com.au |
4 | |||
5 | This program is free software; you can redistribute it and/or modify |
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6 | it under the terms of the GNU General Public License as published by |
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7 | the Free Software Foundation; either version 2 of the License, or |
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8 | (at your option) any later version. |
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9 | |||
10 | This program is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | GNU General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU General Public License |
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16 | along with this program; if not, write to the Free Software |
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17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 | */ |
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19 | |||
20 | /* This is PLATFORM INDEPENDENT user interface code - mainly dialog logic */ |
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21 | |||
22 | #include "ff.h" |
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23 | |||
29 | toby | 24 | #include "PIProperties.h" |
2 | toby | 25 | |
26 | #include "node.h" |
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27 | #include "funcs.h" |
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28 | #include "y.tab.h" |
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29 | #include "choosefile.h" |
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30 | |||
31 | PSPixelMap preview_pmap; |
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32 | PSPixelMask preview_pmask; |
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33 | Handle preview_handle; |
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34 | UIRECT preview_rect; |
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37 | toby | 35 | int preview_w,preview_h,previewerr = false; |
2 | toby | 36 | Point preview_scroll; |
37 | Boolean preview_complete = false; |
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38 | |||
39 | Boolean setup_preview(FilterRecordPtr pb){ |
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40 | |||
41 | //dbg("setup_preview"); |
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42 | |||
43 | if(pb->displayPixels && pb->advanceState){ |
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44 | |||
45 | preview_w = MIN(preview_rect.right - preview_rect.left - 2,pb->filterRect.right - pb->filterRect.left); |
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46 | preview_h = MIN(preview_rect.bottom - preview_rect.top - 2,pb->filterRect.bottom - pb->filterRect.top); |
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47 | |||
48 | preview_pmap.version = 1; |
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49 | preview_pmap.bounds.left = preview_pmap.bounds.top = 0; |
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50 | preview_pmap.bounds.right = preview_w; |
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51 | preview_pmap.bounds.bottom = preview_h; |
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52 | preview_pmap.imageMode = nplanes>1 ? plugInModeRGBColor : plugInModeGrayScale; |
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53 | preview_pmap.rowBytes = nplanes*preview_w; |
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54 | preview_pmap.colBytes = nplanes; |
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55 | preview_pmap.planeBytes = 1; /*interleaved*/ |
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56 | // preview_pmap.baseAddr = preview_data; |
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57 | /* baseAddr must be set before using pixelmap */ |
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58 | |||
59 | //--------------------------------------------------------------------------- |
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60 | // Fields new in version 1: |
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61 | //--------------------------------------------------------------------------- |
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62 | preview_pmap.mat = NULL; |
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63 | |||
64 | if(nplanes==4){ |
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65 | preview_pmask.next = NULL; |
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66 | // preview_pmask.maskData = preview_data+3; |
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67 | preview_pmask.rowBytes = preview_pmap.rowBytes; |
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68 | preview_pmask.colBytes = nplanes; |
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69 | preview_pmask.maskDescription = kSimplePSMask; |
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70 | preview_pmap.masks = &preview_pmask; |
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71 | }else |
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72 | preview_pmap.masks = NULL; |
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73 | |||
74 | preview_handle = PINEWHANDLE((long)preview_h * preview_pmap.rowBytes); |
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75 | }else |
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76 | preview_handle = NULL; |
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77 | return preview_handle != NULL; |
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78 | |||
79 | //--------------------------------------------------------------------------- |
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80 | // Fields new in version 2: |
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81 | //--------------------------------------------------------------------------- |
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82 | // preview_pmap.pixelOverlays; |
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83 | // preview_pmap.colorManagementOptions; |
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84 | |||
85 | // setup(pb); // prepare for evaluations |
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86 | } |
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87 | |||
88 | void dispose_preview(){ |
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89 | if(preview_handle){ |
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90 | PIDISPOSEHANDLE(preview_handle); |
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91 | preview_handle = NULL; |
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92 | } |
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93 | } |
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94 | |||
95 | void recalc_preview(FilterRecordPtr pb,DIALOGREF dp){ |
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96 | extern int srcradused,needinput; |
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97 | extern double zoomfactor; |
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98 | OSErr e; |
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45 | toby | 99 | int j,n,scaledw,scaledh,imgw,imgh; |
2 | toby | 100 | Rect r,outRect; |
101 | Ptr outrow; |
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102 | |||
37 | toby | 103 | preview_complete = false; |
104 | |||
2 | toby | 105 | if(preview_handle){ |
106 | /* size of previewed area, of source image; but no larger than filtered area (selection) */ |
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107 | scaledw = zoomfactor*preview_w; |
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108 | if(scaledw > (pb->filterRect.right - pb->filterRect.left)) |
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109 | scaledw = (pb->filterRect.right - pb->filterRect.left); |
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110 | scaledh = zoomfactor*preview_h; |
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111 | if(scaledh > (pb->filterRect.bottom - pb->filterRect.top)) |
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112 | scaledh = (pb->filterRect.bottom - pb->filterRect.top); |
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113 | |||
114 | /* scale clipped preview area down again - this becomes the pixel size of preview */ |
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115 | imgw = scaledw/zoomfactor; |
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116 | if(imgw > preview_w) |
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117 | imgw = preview_w; |
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118 | imgh = scaledh/zoomfactor; |
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119 | if(imgh > preview_h) |
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120 | imgh = preview_h; |
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121 | |||
122 | // Use to set the phase of the checkerboard: |
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123 | preview_pmap.maskPhaseRow = preview_scroll.v/zoomfactor; |
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124 | preview_pmap.maskPhaseCol = preview_scroll.h/zoomfactor; |
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125 | |||
126 | /* compute source data rectangle (inRect) */ |
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127 | |||
128 | /* centre preview on filtered part of input image, adding scroll offset */ |
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129 | r.left = (pb->filterRect.left+pb->filterRect.right-scaledw)/2 + preview_scroll.h; |
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130 | /* make sure it does not go outside the input area */ |
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131 | if(r.left < pb->filterRect.left) |
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132 | r.left = pb->filterRect.left; |
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133 | else if(r.left > pb->filterRect.right-scaledw) |
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134 | r.left = pb->filterRect.right-scaledw; |
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135 | r.right = r.left + scaledw; |
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136 | |||
137 | /* now compute for vertical */ |
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138 | r.top = (pb->filterRect.top+pb->filterRect.bottom-scaledh)/2 + preview_scroll.v; |
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139 | if(r.top < pb->filterRect.top) |
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140 | r.top = pb->filterRect.top; |
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141 | else if(r.top > pb->filterRect.bottom-scaledh) |
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142 | r.top = pb->filterRect.bottom-scaledh; |
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143 | r.bottom = r.top + scaledh; |
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144 | |||
145 | /* if formulae need random access to image - src(), rad() - we must request entire area: */ |
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146 | if(srcradused){ |
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147 | SETRECT(pb->inRect,0,0,pb->imageSize.h,pb->imageSize.v); |
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148 | }else |
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149 | pb->inRect = r; |
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150 | |||
151 | pb->outRect = pb->inRect; |
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152 | SETRECT(pb->maskRect,0,0,0,0); |
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153 | pb->inLoPlane = pb->outLoPlane = 0; |
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154 | pb->inHiPlane = pb->outHiPlane = nplanes-1; |
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155 | |||
156 | //dbg("recalc_preview: about to call advanceState()"); |
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37 | toby | 157 | |
2 | toby | 158 | if( !needinput || !(e = pb->advanceState()) ){ |
159 | Ptr outptr = PILOCKHANDLE(preview_handle,false); |
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160 | int blankrows = (preview_h-imgh)/2, |
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161 | blankcols = (preview_w-imgw)/2; |
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162 | |||
163 | INITRANDSEED(); |
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164 | //dbg("recalc_preview: about to call process()"); |
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165 | |||
166 | SETRECT(outRect,0,0,imgw,imgh); |
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167 | |||
168 | e = process_scaled(pb,false, |
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169 | &pb->inRect,&r,&outRect, |
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170 | outptr+preview_pmap.rowBytes*blankrows+nplanes*blankcols,preview_pmap.rowBytes, |
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171 | zoomfactor); |
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172 | if(blankrows){ |
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173 | memset(outptr,0xff,preview_pmap.rowBytes*blankrows); |
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174 | n = preview_h - blankrows - imgh; /* blank rows below preview */ |
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175 | memset(outptr+preview_pmap.rowBytes*(blankrows+imgh),0xff,preview_pmap.rowBytes*n); |
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176 | } |
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177 | if(blankcols){ |
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178 | n = preview_w - blankcols - imgw; /* blank columns on right side of preview */ |
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179 | outrow = outptr+preview_pmap.rowBytes*blankrows; |
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180 | for( j = blankrows ; j < preview_h - blankrows ; ++j ){ |
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181 | memset(outrow,0xff,nplanes*blankcols); |
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182 | memset(outrow+nplanes*(blankcols+imgw),0xff,nplanes*n); |
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183 | outrow += preview_pmap.rowBytes; |
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184 | } |
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185 | } |
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186 | |||
187 | if(!e){ |
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188 | preview_complete = true; |
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189 | |||
190 | #ifdef WIN_ENV |
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191 | { |
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192 | extern HWND preview_hwnd; |
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193 | HDC hdc = GetDC(preview_hwnd); |
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194 | |||
195 | //dbg("recalc_preview: about to call drawpreview()"); |
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196 | drawpreview(dp,hdc,outptr); |
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197 | |||
198 | ReleaseDC(preview_hwnd,hdc); |
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199 | } |
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200 | #else |
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201 | { |
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202 | GrafPtr saveport; |
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203 | |||
204 | GetPort(&saveport); |
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205 | SetPortDialogPort(dp); |
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206 | |||
207 | drawpreview(dp,NULL,outptr); |
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208 | |||
209 | SetPort(saveport); |
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210 | } |
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211 | #endif |
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212 | } |
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213 | |||
214 | PIUNLOCKHANDLE(preview_handle); |
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215 | |||
37 | toby | 216 | }/*else{ |
217 | char s[0x100]; |
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2 | toby | 218 | sprintf(s,"recalc_preview: advanceState failed (%d)\n\ |
219 | inRect=(%d,%d,%d,%d) filterRect=(%d,%d,%d,%d) inLoPlane=%d inHiPlane=%d ", |
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220 | e, |
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221 | pb->inRect.left,pb->inRect.top,pb->inRect.right,pb->inRect.bottom, |
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222 | pb->filterRect.left,pb->filterRect.top,pb->filterRect.right,pb->filterRect.bottom, |
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223 | pb->inLoPlane,pb->inHiPlane); |
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224 | dbg(s); |
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37 | toby | 225 | }*/ |
226 | |||
227 | if(e && !previewerr){ |
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39 | toby | 228 | alertuser("Could not build preview at chosen zoom level.", |
37 | toby | 229 | e == memFullErr && !srcradused ? "The image is too large for available memory. Try zooming in.\nIf that does not help, Cancel and retry the filter." : ""); |
230 | previewerr = true; |
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2 | toby | 231 | } |
37 | toby | 232 | |
2 | toby | 233 | } |
234 | } |
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235 | |||
236 | OSErr drawpreview(DIALOGREF dp,void *hdc,Ptr imageptr){ |
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237 | int32 watchsusp; |
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238 | OSErr e = noErr; |
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239 | VRect srcRect; |
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240 | UIRECT imagebounds; |
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241 | |||
242 | if(preview_handle && preview_complete){ |
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243 | |||
244 | srcRect = preview_pmap.bounds; |
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245 | |||
246 | imagebounds.left = (preview_rect.left+preview_rect.right-preview_w)/2; |
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247 | imagebounds.top = (preview_rect.top+preview_rect.bottom-preview_h)/2; |
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248 | imagebounds.right = imagebounds.left + preview_w; |
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249 | imagebounds.bottom = imagebounds.top + preview_h; |
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250 | |||
251 | preview_pmap.baseAddr = imageptr;//PILOCKHANDLE(preview_handle,false); |
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252 | preview_pmask.maskData = imageptr+3; |
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253 | |||
254 | if(gpb->propertyProcs->getPropertyProc){ |
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255 | gpb->propertyProcs->getPropertyProc(kPhotoshopSignature,propWatchSuspension,0,&watchsusp,NULL); |
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256 | gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp+1,NULL); |
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257 | } |
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258 | e = gpb->displayPixels(&preview_pmap,&srcRect,imagebounds.top,imagebounds.left,hdc); |
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259 | |||
260 | if(gpb->propertyProcs->getPropertyProc) |
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261 | gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp,NULL); |
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262 | } |
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263 | return e; |
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264 | } |