#include "camtypes.h"#include "usercord.h"#include "chapter.h"Go to the source code of this file.
Functions | |
| Matrix | ComposeDocToOilMat (const DocCoord &ChapterPos, const XLONG &ChapterDepth, const FIXED16 &ViewScale, const WorkCoord &ScrollOffset) |
| XMatrix | ComposeDocToWorkXMat (const DocCoord ChapterPos, const XLONG ChapterDepth, const FIXED16 ViewScale) |
| DocCoord | operator+ (const DocCoord &One, const DocCoord &Two) |
| Adds two DocCoords together. ie One.x+Two.x, One.y+Two.y. | |
| DocCoord | operator- (const DocCoord &One, const DocCoord &Two) |
| Subtracts the two DocCoords. ie One.x-Two.x, One.y-Two.y. | |
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Definition at line 145 of file doccoord.cpp. 00150 { 00151 // Scale ChapterDepth into device units so that it can be combined with the scroll offset 00152 // BEFORE we build the scroll translation matrix. In this way we avoid storing 64-bit 00153 // translation values in our final matrix... 00154 // 00155 // If we COULD store 64-bit E and F values temporarilly during this composition then 00156 // we would not need to perform this trick at all. This would have the knock-on advantage 00157 // that the OSMapping matrix supplied by the OIL layer could contain the scroll offsets! 00158 // 00159 // NOTE: This adjustment can be removed when testing the system! 00160 00161 Matrix DocToOil; 00162 00163 //********************************************************************** 00164 // Is it just me or is there gunna be a problem with this ? 00165 // If ChapterDepth is big (atfer all it is an XLONG) and ViewScale 00166 // is big too (Say we are zoomed to 1000%) won't this go VERY wrong ? 00167 // 00168 // - Will. 00169 00170 Matrix Scroll( -ScrollOffset.x, 00171 -(ScrollOffset.y + (ChapterDepth * (ViewScale))) 00172 ); 00173 00174 //********************************************************************** 00175 00176 Matrix ScaleMat(ViewScale,ViewScale); 00177 Matrix Translate(-((Coord)ChapterPos)); 00178 00179 // The following matrix compositions MUST be performed in this order. If you are tempted 00180 // to optimise this code MAKE SURE THAT THEY ARE STILL IN THIS ORDER WHEN YOU'VE FINISHED! 00181 // 00182 // Apply translation to get coordinates into logical column... 00183 DocToOil *= Translate; 00184 00185 // Apply scale factors to convert from millipoint distances to pixel distances... 00186 DocToOil *= ScaleMat; 00187 00188 // Apply scroll-offset translation to move origin to viewing position... 00189 DocToOil *= Scroll; 00190 00191 return DocToOil; 00192 }
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Definition at line 221 of file doccoord.cpp. 00225 { 00226 00227 XMatrix ScaleMat(ViewScale,ViewScale); 00228 00229 // Conversion of chapter position from DocCoords to WorkCoords 00230 // WorkCoord WrkChapPos(MakeXLong(ChapterPos.x), MakeXLong(ChapterPos.y)); 00231 WorkCoord WrkChapPos(MakeXLong(ChapterPos.x), MakeXLong(ChapterPos.y)+ChapterDepth); 00232 00233 // DocToOS matrix is initialised as the Translate matrix: saving space and performance 00234 // by the exclusion of an extra multiplication. 00235 XMatrix DocToWork(-(WrkChapPos)); 00236 00237 // The following matrix compositions MUST be performed in this order. If you are tempted 00238 // to optimise this code MAKE SURE THAT THEY ARE STILL IN THIS ORDER WHEN YOU'VE FINISHED! 00239 // 00240 00241 // Apply scale factors to convert from millipoint distances to pixel distances... 00242 DocToWork *= ScaleMat; 00243 00244 return DocToWork; 00245 }
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Adds two DocCoords together. ie One.x+Two.x, One.y+Two.y.
Definition at line 645 of file doccoord.cpp. 00646 { 00647 DocCoord Result; 00648 00649 // Add the two DocCoords together 00650 Result.x = One.x + Two.x; 00651 Result.y = One.y + Two.y; 00652 00653 // return the result 00654 return Result; 00655 }
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Subtracts the two DocCoords. ie One.x-Two.x, One.y-Two.y.
Definition at line 671 of file doccoord.cpp. 00672 { 00673 DocCoord Result; 00674 00675 // Subtract the two DocCoords from each other 00676 Result.x = One.x - Two.x; 00677 Result.y = One.y - Two.y; 00678 00679 // return the result 00680 return Result; 00681 }
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1.4.4