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2 | toby | 1 | /* |
18 | toby | 2 | This file is part of Filter Foundry, a filter plugin for Adobe Photoshop |
171 | dmarschall | 3 | Copyright (C) 2003-2019 Toby Thain, toby@telegraphics.com.au |
2 | toby | 4 | |
5 | This program is free software; you can redistribute it and/or modify |
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110 | dmarschall | 6 | it under the terms of the GNU General Public License as published by |
2 | toby | 7 | the Free Software Foundation; either version 2 of the License, or |
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 | |||
110 | dmarschall | 15 | You should have received a copy of the GNU General Public License |
2 | toby | 16 | along with this program; if not, write to the Free Software |
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 | |||
94 | toby | 22 | #include "preview.h" |
2 | toby | 23 | |
94 | toby | 24 | #ifdef MAC_ENV |
25 | #include <fp.h> |
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26 | #endif |
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27 | #include <math.h> |
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28 | |||
29 | toby | 29 | #include "PIProperties.h" |
2 | toby | 30 | |
94 | toby | 31 | extern FilterRecordPtr gpb; |
2 | toby | 32 | |
33 | PSPixelMap preview_pmap; |
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34 | PSPixelMask preview_pmask; |
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35 | Handle preview_handle; |
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36 | UIRECT preview_rect; |
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94 | toby | 37 | int preview_w,preview_h,previewerr = false,needall = false,needinput = true; |
2 | toby | 38 | Point preview_scroll; |
39 | Boolean preview_complete = false; |
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94 | toby | 40 | double zoomfactor,fitzoom; |
2 | toby | 41 | |
94 | toby | 42 | Boolean setup_preview(FilterRecordPtr pb, int nplanes){ |
43 | double zh,zv; |
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44 | |||
2 | toby | 45 | if(pb->displayPixels && pb->advanceState){ |
157 | dmarschall | 46 | // Possibility 1: Only the part of the preview rect is filled with background color, |
47 | // which can be occupied by image data if zoom factor becomes 100% |
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48 | /* |
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155 | dmarschall | 49 | preview_w = MIN(preview_rect.right - preview_rect.left, |
89 | toby | 50 | pb->filterRect.right - pb->filterRect.left); |
155 | dmarschall | 51 | preview_h = MIN(preview_rect.bottom - preview_rect.top, |
89 | toby | 52 | pb->filterRect.bottom - pb->filterRect.top); |
157 | dmarschall | 53 | */ |
54 | // Possibility 2: The whole preview rect is always filled with the background color, |
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55 | // so you can easily see what is the preview area and what is not |
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56 | preview_w = preview_rect.right - preview_rect.left; |
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57 | preview_h = preview_rect.bottom - preview_rect.top; |
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58 | |||
94 | toby | 59 | zh = (pb->filterRect.right - pb->filterRect.left)/(double)preview_w; |
60 | zv = (pb->filterRect.bottom - pb->filterRect.top)/(double)preview_h; |
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61 | fitzoom = zh > zv ? zh : zv; |
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110 | dmarschall | 62 | |
2 | toby | 63 | preview_pmap.version = 1; |
64 | preview_pmap.bounds.left = preview_pmap.bounds.top = 0; |
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65 | preview_pmap.bounds.right = preview_w; |
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66 | preview_pmap.bounds.bottom = preview_h; |
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94 | toby | 67 | preview_pmap.imageMode = pb->imageMode; |
2 | toby | 68 | preview_pmap.rowBytes = nplanes*preview_w; |
69 | preview_pmap.colBytes = nplanes; |
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70 | preview_pmap.planeBytes = 1; /*interleaved*/ |
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71 | // preview_pmap.baseAddr = preview_data; |
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72 | /* baseAddr must be set before using pixelmap */ |
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110 | dmarschall | 73 | |
2 | toby | 74 | //--------------------------------------------------------------------------- |
75 | // Fields new in version 1: |
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110 | dmarschall | 76 | //--------------------------------------------------------------------------- |
2 | toby | 77 | preview_pmap.mat = NULL; |
110 | dmarschall | 78 | |
94 | toby | 79 | if( (pb->imageMode == plugInModeRGBColor && nplanes == 4) |
80 | || (pb->imageMode == plugInModeLabColor && nplanes == 4) |
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81 | || (pb->imageMode == plugInModeGrayScale && nplanes == 2) |
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82 | || (pb->imageMode == plugInModeDuotone && nplanes == 2) ) |
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89 | toby | 83 | { |
2 | toby | 84 | preview_pmask.next = NULL; |
85 | // preview_pmask.maskData = preview_data+3; |
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86 | preview_pmask.rowBytes = preview_pmap.rowBytes; |
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87 | preview_pmask.colBytes = nplanes; |
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88 | preview_pmask.maskDescription = kSimplePSMask; |
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89 | preview_pmap.masks = &preview_pmask; |
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90 | }else |
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91 | preview_pmap.masks = NULL; |
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110 | dmarschall | 92 | |
2 | toby | 93 | preview_handle = PINEWHANDLE((long)preview_h * preview_pmap.rowBytes); |
94 | }else |
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95 | preview_handle = NULL; |
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96 | return preview_handle != NULL; |
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97 | |||
98 | //--------------------------------------------------------------------------- |
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99 | // Fields new in version 2: |
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110 | dmarschall | 100 | //--------------------------------------------------------------------------- |
2 | toby | 101 | // preview_pmap.pixelOverlays; |
102 | // preview_pmap.colorManagementOptions; |
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103 | } |
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104 | |||
105 | void dispose_preview(){ |
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106 | if(preview_handle){ |
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107 | PIDISPOSEHANDLE(preview_handle); |
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108 | preview_handle = NULL; |
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109 | } |
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110 | } |
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111 | |||
158 | dmarschall | 112 | void* memset_bgcolor(void* ptr, size_t num) { |
157 | dmarschall | 113 | int i; |
156 | dmarschall | 114 | byte* p; |
157 | dmarschall | 115 | |
116 | i = 0; |
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156 | dmarschall | 117 | p = (byte*)ptr; |
118 | for (i=0; i<num; ++i) { |
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158 | dmarschall | 119 | #ifdef WIN_ENV |
159 | dmarschall | 120 | DWORD color; |
121 | |||
158 | dmarschall | 122 | color = GetSysColor(COLOR_APPWORKSPACE); |
159 | dmarschall | 123 | |
124 | if (gpb->imageMode == plugInModeRGBColor) { |
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125 | if (i%nplanes == 0) p[i] = GetRValue(color); |
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126 | if (i%nplanes == 1) p[i] = GetGValue(color); |
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127 | if (i%nplanes == 2) p[i] = GetBValue(color); |
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128 | if (i%nplanes == 3) p[i] = 255; // alpha channel |
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129 | } else if (gpb->imageMode == plugInModeGrayScale) { |
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130 | byte r, g, b; |
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131 | |||
132 | r = GetRValue(color); |
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133 | g = GetGValue(color); |
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134 | b = GetBValue(color); |
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135 | |||
136 | if (i%nplanes == 0) p[i] = ((299L*r)+(587L*g)+(114L*b))/1000; |
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137 | if (i%nplanes == 1) p[i] = 255; // alpha channel |
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138 | } else if (gpb->imageMode == plugInModeCMYKColor) { |
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139 | byte r, g, b; |
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140 | double dr, dg, db, k, c, m, y; |
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141 | |||
142 | r = GetRValue(color); |
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143 | g = GetGValue(color); |
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144 | b = GetBValue(color); |
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145 | |||
146 | dr = (double)r / 255; |
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147 | dg = (double)g / 255; |
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148 | db = (double)b / 255; |
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149 | k = 1 - max(max(dr, dg), db); |
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150 | c = (1 - dr - k) / (1 - k); |
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151 | m = (1 - dg - k) / (1 - k); |
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152 | y = (1 - db - k) / (1 - k); |
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153 | |||
154 | if (i%nplanes == 0) p[i] = 255 - c * 255; |
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155 | if (i%nplanes == 1) p[i] = 255 - m * 255; |
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156 | if (i%nplanes == 2) p[i] = 255 - y * 255; |
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157 | if (i%nplanes == 3) p[i] = 255 - k * 255; |
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158 | } else { |
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159 | // FIXME: If we are in such a non supported color mode, then |
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160 | // these color codes would be all wrong! |
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161 | // Just to be safe use (what is probably) white |
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162 | p[i] = 0xFF; |
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163 | |||
164 | /* |
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165 | #define plugInModeBitmap 0 |
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166 | #define plugInModeGrayScale 1 supported |
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167 | #define plugInModeIndexedColor 2 |
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168 | #define plugInModeRGBColor 3 supported |
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169 | #define plugInModeCMYKColor 4 supported |
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170 | #define plugInModeHSLColor 5 |
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171 | #define plugInModeHSBColor 6 |
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172 | #define plugInModeMultichannel 7 |
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173 | #define plugInModeDuotone 8 |
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174 | #define plugInModeLabColor 9 |
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175 | #define plugInModeGray16 10 |
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176 | #define plugInModeRGB48 11 |
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177 | #define plugInModeLab48 12 |
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178 | #define plugInModeCMYK64 13 |
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179 | #define plugInModeDeepMultichannel 14 |
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180 | #define plugInModeDuotone16 15 |
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181 | #define plugInModeRGB96 16 |
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182 | #define plugInModeGray32 17 |
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183 | */ |
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184 | |||
185 | } |
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158 | dmarschall | 186 | #else |
187 | // This is the behavior of FilterFoundry <1.7 was this (filled with 0xFF) |
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188 | // FIXME: Should we do something fancy here, too? |
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189 | p[i] = 0xFF; |
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190 | #endif |
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156 | dmarschall | 191 | } |
192 | return ptr; |
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193 | } |
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194 | |||
2 | toby | 195 | void recalc_preview(FilterRecordPtr pb,DIALOGREF dp){ |
196 | OSErr e; |
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45 | toby | 197 | int j,n,scaledw,scaledh,imgw,imgh; |
2 | toby | 198 | Rect r,outRect; |
199 | Ptr outrow; |
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200 | |||
37 | toby | 201 | preview_complete = false; |
110 | dmarschall | 202 | |
2 | toby | 203 | if(preview_handle){ |
204 | /* size of previewed area, of source image; but no larger than filtered area (selection) */ |
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205 | scaledw = zoomfactor*preview_w; |
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206 | if(scaledw > (pb->filterRect.right - pb->filterRect.left)) |
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89 | toby | 207 | scaledw = pb->filterRect.right - pb->filterRect.left; |
2 | toby | 208 | scaledh = zoomfactor*preview_h; |
209 | if(scaledh > (pb->filterRect.bottom - pb->filterRect.top)) |
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89 | toby | 210 | scaledh = pb->filterRect.bottom - pb->filterRect.top; |
110 | dmarschall | 211 | |
2 | toby | 212 | /* scale clipped preview area down again - this becomes the pixel size of preview */ |
121 | dmarschall | 213 | imgw = ceil(scaledw/zoomfactor); |
2 | toby | 214 | if(imgw > preview_w) |
215 | imgw = preview_w; |
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121 | dmarschall | 216 | imgh = ceil(scaledh/zoomfactor); |
2 | toby | 217 | if(imgh > preview_h) |
218 | imgh = preview_h; |
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219 | |||
220 | /* compute source data rectangle (inRect) */ |
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221 | |||
222 | /* centre preview on filtered part of input image, adding scroll offset */ |
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53 | toby | 223 | r.left = (pb->filterRect.left + pb->filterRect.right - scaledw)/2 + preview_scroll.h; |
2 | toby | 224 | /* make sure it does not go outside the input area */ |
110 | dmarschall | 225 | if(r.left < pb->filterRect.left) { |
120 | dmarschall | 226 | preview_scroll.h += pb->filterRect.left - r.left; |
2 | toby | 227 | r.left = pb->filterRect.left; |
110 | dmarschall | 228 | } |
229 | else if(r.left+scaledw > pb->filterRect.right) { |
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120 | dmarschall | 230 | preview_scroll.h += pb->filterRect.right - (r.left+scaledw); |
53 | toby | 231 | r.left = pb->filterRect.right - scaledw; |
110 | dmarschall | 232 | } |
2 | toby | 233 | r.right = r.left + scaledw; |
119 | dmarschall | 234 | preview_pmap.maskPhaseCol = (preview_scroll.h)/zoomfactor; // phase of the checkerboard |
2 | toby | 235 | |
236 | /* now compute for vertical */ |
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94 | toby | 237 | r.top = (pb->filterRect.top + pb->filterRect.bottom - scaledh)/2 + preview_scroll.v; |
110 | dmarschall | 238 | if(r.top < pb->filterRect.top) { |
120 | dmarschall | 239 | preview_scroll.v += pb->filterRect.top - r.top; |
2 | toby | 240 | r.top = pb->filterRect.top; |
110 | dmarschall | 241 | } |
242 | else if(r.top+scaledh > pb->filterRect.bottom) { |
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120 | dmarschall | 243 | preview_scroll.v += pb->filterRect.bottom - (r.top+scaledh); |
53 | toby | 244 | r.top = pb->filterRect.bottom - scaledh; |
110 | dmarschall | 245 | } |
2 | toby | 246 | r.bottom = r.top + scaledh; |
119 | dmarschall | 247 | preview_pmap.maskPhaseRow = (preview_scroll.v)/zoomfactor; // phase of the checkerboard |
2 | toby | 248 | |
249 | /* if formulae need random access to image - src(), rad() - we must request entire area: */ |
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94 | toby | 250 | if(needall) |
2 | toby | 251 | SETRECT(pb->inRect,0,0,pb->imageSize.h,pb->imageSize.v); |
94 | toby | 252 | else |
2 | toby | 253 | pb->inRect = r; |
110 | dmarschall | 254 | |
2 | toby | 255 | pb->outRect = pb->inRect; |
256 | SETRECT(pb->maskRect,0,0,0,0); |
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257 | pb->inLoPlane = pb->outLoPlane = 0; |
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258 | pb->inHiPlane = pb->outHiPlane = nplanes-1; |
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37 | toby | 259 | |
2 | toby | 260 | if( !needinput || !(e = pb->advanceState()) ){ |
261 | Ptr outptr = PILOCKHANDLE(preview_handle,false); |
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53 | toby | 262 | int blankrows = (preview_h - imgh)/2, |
89 | toby | 263 | blankcols = (preview_w - imgw)/2, |
264 | pmrb = preview_pmap.rowBytes; |
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2 | toby | 265 | |
94 | toby | 266 | evalinit(); |
110 | dmarschall | 267 | |
2 | toby | 268 | SETRECT(outRect,0,0,imgw,imgh); |
110 | dmarschall | 269 | |
53 | toby | 270 | e = process_scaled(pb, false, &r, &outRect, |
271 | outptr + pmrb*blankrows + nplanes*blankcols, pmrb, zoomfactor); |
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2 | toby | 272 | if(blankrows){ |
157 | dmarschall | 273 | // blank rows on top of preview: |
158 | dmarschall | 274 | memset_bgcolor(outptr, pmrb*blankrows); |
157 | dmarschall | 275 | // blank rows below preview: |
276 | n = preview_h - blankrows - imgh; |
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158 | dmarschall | 277 | memset_bgcolor(outptr + pmrb*(blankrows+imgh), pmrb*n); |
2 | toby | 278 | } |
279 | if(blankcols){ |
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157 | dmarschall | 280 | n = preview_w - blankcols - imgw; |
53 | toby | 281 | outrow = outptr + pmrb*blankrows; |
94 | toby | 282 | for(j = blankrows; j < preview_h - blankrows; ++j){ |
157 | dmarschall | 283 | // blank columns on left side of preview (if picture is smaller than the preview area): |
158 | dmarschall | 284 | memset_bgcolor(outrow, nplanes*blankcols); |
157 | dmarschall | 285 | // blank columns on right side of preview (if picture is smaller than the preview area): |
158 | dmarschall | 286 | memset_bgcolor(outrow + nplanes*(blankcols+imgw), nplanes*n); |
53 | toby | 287 | outrow += pmrb; |
2 | toby | 288 | } |
289 | } |
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290 | |||
291 | if(!e){ |
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292 | preview_complete = true; |
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293 | |||
294 | #ifdef WIN_ENV |
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295 | { |
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296 | extern HWND preview_hwnd; |
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297 | HDC hdc = GetDC(preview_hwnd); |
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89 | toby | 298 | |
2 | toby | 299 | drawpreview(dp,hdc,outptr); |
110 | dmarschall | 300 | |
2 | toby | 301 | ReleaseDC(preview_hwnd,hdc); |
302 | } |
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303 | #else |
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304 | { |
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305 | GrafPtr saveport; |
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306 | |||
307 | GetPort(&saveport); |
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308 | SetPortDialogPort(dp); |
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110 | dmarschall | 309 | |
2 | toby | 310 | drawpreview(dp,NULL,outptr); |
110 | dmarschall | 311 | |
2 | toby | 312 | SetPort(saveport); |
313 | } |
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314 | #endif |
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315 | } |
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316 | |||
317 | PIUNLOCKHANDLE(preview_handle); |
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94 | toby | 318 | } |
2 | toby | 319 | |
37 | toby | 320 | if(e && !previewerr){ |
39 | toby | 321 | alertuser("Could not build preview at chosen zoom level.", |
94 | toby | 322 | e == memFullErr && !needall ? "The image is too large for available memory. Try zooming in.\nIf that does not help, Cancel and retry the filter." : ""); |
37 | toby | 323 | previewerr = true; |
2 | toby | 324 | } |
37 | toby | 325 | |
2 | toby | 326 | } |
327 | } |
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328 | |||
329 | OSErr drawpreview(DIALOGREF dp,void *hdc,Ptr imageptr){ |
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114 | dmarschall | 330 | intptr_t watchsusp; |
2 | toby | 331 | OSErr e = noErr; |
332 | VRect srcRect; |
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333 | UIRECT imagebounds; |
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334 | |||
335 | if(preview_handle && preview_complete){ |
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336 | |||
337 | srcRect = preview_pmap.bounds; |
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338 | |||
53 | toby | 339 | imagebounds.left = (preview_rect.left + preview_rect.right - preview_w)/2; |
340 | imagebounds.top = (preview_rect.top + preview_rect.bottom - preview_h)/2; |
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2 | toby | 341 | imagebounds.right = imagebounds.left + preview_w; |
342 | imagebounds.bottom = imagebounds.top + preview_h; |
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343 | |||
89 | toby | 344 | preview_pmap.baseAddr = imageptr; |
94 | toby | 345 | preview_pmask.maskData = imageptr+3; // FIXME: is this offset correct for all modes?! |
2 | toby | 346 | |
347 | if(gpb->propertyProcs->getPropertyProc){ |
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348 | gpb->propertyProcs->getPropertyProc(kPhotoshopSignature,propWatchSuspension,0,&watchsusp,NULL); |
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349 | gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp+1,NULL); |
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350 | } |
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89 | toby | 351 | |
2 | toby | 352 | e = gpb->displayPixels(&preview_pmap,&srcRect,imagebounds.top,imagebounds.left,hdc); |
353 | |||
354 | if(gpb->propertyProcs->getPropertyProc) |
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355 | gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp,NULL); |
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356 | } |
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357 | return e; |
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358 | } |