diff options
Diffstat (limited to 'archive/hge/CxImage/ximasel.cpp')
| -rw-r--r-- | archive/hge/CxImage/ximasel.cpp | 698 |
1 files changed, 0 insertions, 698 deletions
diff --git a/archive/hge/CxImage/ximasel.cpp b/archive/hge/CxImage/ximasel.cpp deleted file mode 100644 index c50ff99..0000000 --- a/archive/hge/CxImage/ximasel.cpp +++ /dev/null @@ -1,698 +0,0 @@ -// xImaSel.cpp : Selection functions
-/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
- * CxImage version 7.0.0 31/Dec/2010
- */
-
-#include "ximage.h"
-
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Checks if the image has a valid selection.
- */
-bool CxImage::SelectionIsValid()
-{
- return pSelection!=0;
-}
-
-#if CXIMAGE_SUPPORT_SELECTION
-
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Gets the smallest rectangle that contains the selection
- */
-void CxImage::SelectionGetBox(RECT& r)
-{
- memcpy(&r,&info.rSelectionBox,sizeof(RECT));
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Empties the selection.
- */
-bool CxImage::SelectionClear(uint8_t level)
-{
- if (pSelection){
- if (level==0){
- memset(pSelection,0,head.biWidth * head.biHeight);
- info.rSelectionBox.left = head.biWidth;
- info.rSelectionBox.bottom = head.biHeight;
- info.rSelectionBox.right = info.rSelectionBox.top = 0;
- } else {
- memset(pSelection,level,head.biWidth * head.biHeight);
- info.rSelectionBox.right = head.biWidth;
- info.rSelectionBox.top = head.biHeight;
- info.rSelectionBox.left = info.rSelectionBox.bottom = 0;
- }
- return true;
- }
- return false;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Allocates an empty selection.
- */
-bool CxImage::SelectionCreate()
-{
- SelectionDelete();
- pSelection = (uint8_t*)calloc(head.biWidth * head.biHeight, 1);
- return (pSelection!=0);
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Deallocates the selction.
- */
-bool CxImage::SelectionDelete()
-{
- if (pSelection){
- free(pSelection);
- pSelection=NULL;
- }
- info.rSelectionBox.left = head.biWidth;
- info.rSelectionBox.bottom = head.biHeight;
- info.rSelectionBox.right = info.rSelectionBox.top = 0;
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Checks if the coordinates are inside the selection.
- */
-bool CxImage::SelectionIsInside(int32_t x, int32_t y)
-{
- if (IsInside(x,y)){
- if (pSelection==NULL) return true;
- return pSelection[x+y*head.biWidth]!=0;
- }
- return false;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Checks if the coordinates are inside the selection.
- * "blind" version assumes that (x,y) is inside to the image.
- */
-bool CxImage::BlindSelectionIsInside(int32_t x, int32_t y)
-{
-#ifdef _DEBUG
- if (!IsInside(x,y))
- #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
- throw 0;
- #else
- return 0;
- #endif
-#endif
- if (pSelection==NULL) return true;
- return pSelection[x+y*head.biWidth]!=0;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Adds a rectangle to the existing selection.
- */
-bool CxImage::SelectionAddRect(RECT r, uint8_t level)
-{
- if (pSelection==NULL) SelectionCreate();
- if (pSelection==NULL) return false;
-
- RECT r2;
- if (r.left<r.right) {r2.left=r.left; r2.right=r.right; } else {r2.left=r.right ; r2.right=r.left; }
- if (r.bottom<r.top) {r2.bottom=r.bottom; r2.top=r.top; } else {r2.bottom=r.top ; r2.top=r.bottom; }
-
- if (info.rSelectionBox.top <= r2.top) info.rSelectionBox.top = max(0L,min(head.biHeight,r2.top+1));
- if (info.rSelectionBox.left > r2.left) info.rSelectionBox.left = max(0L,min(head.biWidth,r2.left));
- if (info.rSelectionBox.right <= r2.right) info.rSelectionBox.right = max(0L,min(head.biWidth,r2.right+1));
- if (info.rSelectionBox.bottom > r2.bottom) info.rSelectionBox.bottom = max(0L,min(head.biHeight,r2.bottom));
-
- int32_t ymin = max(0L,min(head.biHeight,r2.bottom));
- int32_t ymax = max(0L,min(head.biHeight,r2.top+1));
- int32_t xmin = max(0L,min(head.biWidth,r2.left));
- int32_t xmax = max(0L,min(head.biWidth,r2.right+1));
-
- for (int32_t y=ymin; y<ymax; y++)
- memset(pSelection + xmin + y * head.biWidth, level, xmax-xmin);
-
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Adds an ellipse to the existing selection.
- */
-bool CxImage::SelectionAddEllipse(RECT r, uint8_t level)
-{
- if (pSelection==NULL) SelectionCreate();
- if (pSelection==NULL) return false;
-
- int32_t xradius = abs(r.right - r.left)/2;
- int32_t yradius = abs(r.top - r.bottom)/2;
- if (xradius==0 || yradius==0) return false;
-
- int32_t xcenter = (r.right + r.left)/2;
- int32_t ycenter = (r.top + r.bottom)/2;
-
- if (info.rSelectionBox.left > (xcenter - xradius)) info.rSelectionBox.left = max(0L,min(head.biWidth,(xcenter - xradius)));
- if (info.rSelectionBox.right <= (xcenter + xradius)) info.rSelectionBox.right = max(0L,min(head.biWidth,(xcenter + xradius + 1)));
- if (info.rSelectionBox.bottom > (ycenter - yradius)) info.rSelectionBox.bottom = max(0L,min(head.biHeight,(ycenter - yradius)));
- if (info.rSelectionBox.top <= (ycenter + yradius)) info.rSelectionBox.top = max(0L,min(head.biHeight,(ycenter + yradius + 1)));
-
- int32_t xmin = max(0L,min(head.biWidth,xcenter - xradius));
- int32_t xmax = max(0L,min(head.biWidth,xcenter + xradius + 1));
- int32_t ymin = max(0L,min(head.biHeight,ycenter - yradius));
- int32_t ymax = max(0L,min(head.biHeight,ycenter + yradius + 1));
-
- int32_t y,yo;
- for (y=ymin; y<min(ycenter,ymax); y++){
- for (int32_t x=xmin; x<xmax; x++){
- yo = (int32_t)(ycenter - yradius * sqrt(1-pow((float)(x - xcenter)/(float)xradius,2)));
- if (yo<y) pSelection[x + y * head.biWidth] = level;
- }
- }
- for (y=ycenter; y<ymax; y++){
- for (int32_t x=xmin; x<xmax; x++){
- yo = (int32_t)(ycenter + yradius * sqrt(1-pow((float)(x - xcenter)/(float)xradius,2)));
- if (yo>y) pSelection[x + y * head.biWidth] = level;
- }
- }
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Inverts the selection.
- * Note: the SelectionBox is set to "full image", call SelectionGetBox before (if necessary)
- */
-bool CxImage::SelectionInvert()
-{
- if (pSelection) {
- uint8_t *iSrc=pSelection;
- int32_t n=head.biHeight*head.biWidth;
- for(int32_t i=0; i < n; i++){
- *iSrc=(uint8_t)~(*(iSrc));
- iSrc++;
- }
-
- SelectionRebuildBox();
-
- return true;
- }
- return false;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Imports an existing region from another image with the same width and height.
- */
-bool CxImage::SelectionCopy(CxImage &from)
-{
- if (from.pSelection == NULL || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false;
- if (pSelection==NULL) pSelection = (uint8_t*)malloc(head.biWidth * head.biHeight);
- if (pSelection==NULL) return false;
- memcpy(pSelection,from.pSelection,head.biWidth * head.biHeight);
- memcpy(&info.rSelectionBox,&from.info.rSelectionBox,sizeof(RECT));
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Adds a polygonal region to the existing selection. points points to an array of POINT structures.
- * Each structure specifies the x-coordinate and y-coordinate of one vertex of the polygon.
- * npoints specifies the number of POINT structures in the array pointed to by points.
- */
-bool CxImage::SelectionAddPolygon(POINT *points, int32_t npoints, uint8_t level)
-{
- if (points==NULL || npoints<3) return false;
-
- if (pSelection==NULL) SelectionCreate();
- if (pSelection==NULL) return false;
-
- uint8_t* plocal = (uint8_t*)calloc(head.biWidth*head.biHeight, 1);
- RECT localbox = {head.biWidth,0,0,head.biHeight};
-
- int32_t x,y,i=0;
- POINT *current;
- POINT *next = NULL;
- POINT *start = NULL;
- //trace contour
- while (i < npoints){
- current = &points[i];
- if (current->x!=-1){
- if (i==0 || (i>0 && points[i-1].x==-1)) start = &points[i];
-
- if ((i+1)==npoints || points[i+1].x==-1)
- next = start;
- else
- next = &points[i+1];
-
- float beta;
- if (current->x != next->x){
- beta = (float)(next->y - current->y)/(float)(next->x - current->x);
- if (current->x < next->x){
- for (x=current->x; x<=next->x; x++){
- y = (int32_t)(current->y + (x - current->x) * beta);
- if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
- }
- } else {
- for (x=current->x; x>=next->x; x--){
- y = (int32_t)(current->y + (x - current->x) * beta);
- if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
- }
- }
- }
- if (current->y != next->y){
- beta = (float)(next->x - current->x)/(float)(next->y - current->y);
- if (current->y < next->y){
- for (y=current->y; y<=next->y; y++){
- x = (int32_t)(current->x + (y - current->y) * beta);
- if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
- }
- } else {
- for (y=current->y; y>=next->y; y--){
- x = (int32_t)(current->x + (y - current->y) * beta);
- if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
- }
- }
- }
- }
-
- RECT r2;
- if (current->x < next->x) {r2.left=current->x; r2.right=next->x; } else {r2.left=next->x ; r2.right=current->x; }
- if (current->y < next->y) {r2.bottom=current->y; r2.top=next->y; } else {r2.bottom=next->y ; r2.top=current->y; }
- if (localbox.top < r2.top) localbox.top = max(0L,min(head.biHeight-1,r2.top+1));
- if (localbox.left > r2.left) localbox.left = max(0L,min(head.biWidth-1,r2.left-1));
- if (localbox.right < r2.right) localbox.right = max(0L,min(head.biWidth-1,r2.right+1));
- if (localbox.bottom > r2.bottom) localbox.bottom = max(0L,min(head.biHeight-1,r2.bottom-1));
-
- i++;
- }
-
- //fill the outer region
- int32_t npix=(localbox.right - localbox.left)*(localbox.top - localbox.bottom);
- POINT* pix = (POINT*)calloc(npix,sizeof(POINT));
- uint8_t back=0, mark=1;
- int32_t fx, fy, fxx, fyy, first, last;
- int32_t xmin = 0;
- int32_t xmax = 0;
- int32_t ymin = 0;
- int32_t ymax = 0;
-
- for (int32_t side=0; side<4; side++){
- switch(side){
- case 0:
- xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.bottom+1;
- break;
- case 1:
- xmin=localbox.right; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.top+1;
- break;
- case 2:
- xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.top; ymax=localbox.top+1;
- break;
- case 3:
- xmin=localbox.left; xmax=localbox.left+1; ymin=localbox.bottom; ymax=localbox.top+1;
- break;
- }
- //fill from the border points
- for(y=ymin;y<ymax;y++){
- for(x=xmin;x<xmax;x++){
- if (plocal[x+y*head.biWidth]==0){
- // Subject: FLOOD FILL ROUTINE Date: 12-23-97 (00:57)
- // Author: Petter Holmberg Code: QB, QBasic, PDS
- // Origin: petter.holmberg@usa.net Packet: GRAPHICS.ABC
- first=0;
- last=1;
- while(first!=last){
- fx = pix[first].x;
- fy = pix[first].y;
- fxx = fx + x;
- fyy = fy + y;
- for(;;)
- {
- if ((plocal[fxx + fyy*head.biWidth] == back) &&
- fxx>=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top )
- {
- plocal[fxx + fyy*head.biWidth] = mark;
- if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){
- pix[last].x = fx;
- pix[last].y = fy - 1;
- last++;
- if (last == npix) last = 0;
- }
- if ((fyy + 1)<head.biHeight && plocal[fxx + (fyy + 1)*head.biWidth] == back){
- pix[last].x = fx;
- pix[last].y = fy + 1;
- last++;
- if (last == npix) last = 0;
- }
- } else {
- break;
- }
- fx++;
- fxx++;
- };
-
- fx = pix[first].x - 1;
- fy = pix[first].y;
- fxx = fx + x;
- fyy = fy + y;
-
- for( ;; )
- {
- if ((plocal[fxx + fyy*head.biWidth] == back) &&
- fxx>=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top )
- {
- plocal[fxx + (y + fy)*head.biWidth] = mark;
- if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){
- pix[last].x = fx;
- pix[last].y = fy - 1;
- last++;
- if (last == npix) last = 0;
- }
- if ((fyy + 1)<head.biHeight && plocal[fxx + (fyy + 1)*head.biWidth] == back){
- pix[last].x = fx;
- pix[last].y = fy + 1;
- last++;
- if (last == npix) last = 0;
- }
- } else {
- break;
- }
- fx--;
- fxx--;
- }
-
- first++;
- if (first == npix) first = 0;
- }
- }
- }
- }
- }
-
- //transfer the region
- int32_t yoffset;
- for (y=localbox.bottom; y<=localbox.top; y++){
- yoffset = y * head.biWidth;
- for (x=localbox.left; x<=localbox.right; x++)
- if (plocal[x + yoffset]!=1) pSelection[x + yoffset]=level;
- }
- if (info.rSelectionBox.top <= localbox.top) info.rSelectionBox.top = min(head.biHeight,localbox.top + 1);
- if (info.rSelectionBox.left > localbox.left) info.rSelectionBox.left = min(head.biWidth,localbox.left);
- if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = min(head.biWidth,localbox.right + 1);
- if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = min(head.biHeight,localbox.bottom);
-
- free(plocal);
- free(pix);
-
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Adds to the selection all the pixels matching the specified color.
- */
-bool CxImage::SelectionAddColor(RGBQUAD c, uint8_t level)
-{
- if (pSelection==NULL) SelectionCreate();
- if (pSelection==NULL) return false;
-
- RECT localbox = {head.biWidth,0,0,head.biHeight};
-
- for (int32_t y = 0; y < head.biHeight; y++){
- for (int32_t x = 0; x < head.biWidth; x++){
- RGBQUAD color = BlindGetPixelColor(x, y);
- if (color.rgbRed == c.rgbRed &&
- color.rgbGreen == c.rgbGreen &&
- color.rgbBlue == c.rgbBlue)
- {
- pSelection[x + y * head.biWidth] = level;
-
- if (localbox.top < y) localbox.top = y;
- if (localbox.left > x) localbox.left = x;
- if (localbox.right < x) localbox.right = x;
- if (localbox.bottom > y) localbox.bottom = y;
- }
- }
- }
-
- if (info.rSelectionBox.top <= localbox.top) info.rSelectionBox.top = localbox.top + 1;
- if (info.rSelectionBox.left > localbox.left) info.rSelectionBox.left = localbox.left;
- if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = localbox.right + 1;
- if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = localbox.bottom;
-
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Adds a single pixel to the existing selection.
- */
-bool CxImage::SelectionAddPixel(int32_t x, int32_t y, uint8_t level)
-{
- if (pSelection==NULL) SelectionCreate();
- if (pSelection==NULL) return false;
-
- if (IsInside(x,y)) {
- pSelection[x + y * head.biWidth] = level; // set the correct mask bit
-
- if (info.rSelectionBox.top <= y) info.rSelectionBox.top = y+1;
- if (info.rSelectionBox.left > x) info.rSelectionBox.left = x;
- if (info.rSelectionBox.right <= x) info.rSelectionBox.right = x+1;
- if (info.rSelectionBox.bottom > y) info.rSelectionBox.bottom = y;
-
- return true;
- }
-
- return false;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Exports the selection channel in a 8bpp grayscale image.
- */
-bool CxImage::SelectionSplit(CxImage *dest)
-{
- if (!pSelection || !dest) return false;
-
- CxImage tmp(head.biWidth,head.biHeight,8);
- if (!tmp.IsValid()){
- strcpy(info.szLastError,tmp.GetLastError());
- return false;
- }
-
- for(int32_t y=0; y<head.biHeight; y++){
- for(int32_t x=0; x<head.biWidth; x++){
- tmp.BlindSetPixelIndex(x,y,pSelection[x+y*head.biWidth]);
- }
- }
-
- tmp.SetGrayPalette();
- dest->Transfer(tmp);
-
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Creates the selection channel from a gray scale image.
- * black = unselected
- */
-bool CxImage::SelectionSet(CxImage &from)
-{
- if (!from.IsGrayScale() || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight){
- strcpy(info.szLastError,"CxImage::SelectionSet: wrong width or height, or image is not gray scale");
- return false;
- }
-
- if (pSelection==NULL) pSelection = (uint8_t*)malloc(head.biWidth * head.biHeight);
-
- uint8_t* src = from.info.pImage;
- uint8_t* dst = pSelection;
- if (src==NULL || dst==NULL){
- strcpy(info.szLastError,"CxImage::SelectionSet: null pointer");
- return false;
- }
-
- for (int32_t y=0; y<head.biHeight; y++){
- memcpy(dst,src,head.biWidth);
- dst += head.biWidth;
- src += from.info.dwEffWidth;
- }
-
- SelectionRebuildBox();
-
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Sets the Selection level for a single pixel
- * internal use only: doesn't set SelectionBox. Use SelectionAddPixel
- */
-void CxImage::SelectionSet(const int32_t x,const int32_t y,const uint8_t level)
-{
- if (pSelection && IsInside(x,y)) pSelection[x+y*head.biWidth]=level;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Gets the Selection level for a single pixel
- */
-uint8_t CxImage::SelectionGet(const int32_t x,const int32_t y)
-{
- if (pSelection && IsInside(x,y)) return pSelection[x+y*head.biWidth];
- return 0;
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Rebuilds the SelectionBox
- */
-void CxImage::SelectionRebuildBox()
-{
- info.rSelectionBox.left = head.biWidth;
- info.rSelectionBox.bottom = head.biHeight;
- info.rSelectionBox.right = info.rSelectionBox.top = 0;
-
- if (!pSelection)
- return;
-
- int32_t x,y;
-
- for (y=0; y<head.biHeight; y++){
- for (x=0; x<info.rSelectionBox.left; x++){
- if (pSelection[x+y*head.biWidth]){
- info.rSelectionBox.left = x;
- continue;
- }
- }
- }
-
- for (y=0; y<head.biHeight; y++){
- for (x=head.biWidth-1; x>=info.rSelectionBox.right; x--){
- if (pSelection[x+y*head.biWidth]){
- info.rSelectionBox.right = x+1;
- continue;
- }
- }
- }
-
- for (x=0; x<head.biWidth; x++){
- for (y=0; y<info.rSelectionBox.bottom; y++){
- if (pSelection[x+y*head.biWidth]){
- info.rSelectionBox.bottom = y;
- continue;
- }
- }
- }
-
- for (x=0; x<head.biWidth; x++){
- for (y=head.biHeight-1; y>=info.rSelectionBox.top; y--){
- if (pSelection[x+y*head.biWidth]){
- info.rSelectionBox.top = y+1;
- continue;
- }
- }
- }
-
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Gets the Selection level for a single pixel
- * "blind" version assumes that (x,y) is inside to the image.
- */
-uint8_t CxImage::BlindSelectionGet(const int32_t x,const int32_t y)
-{
-#ifdef _DEBUG
- if (!IsInside(x,y) || (pSelection==0))
- #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
- throw 0;
- #else
- return 0;
- #endif
-#endif
- return pSelection[x+y*head.biWidth];
-}
-////////////////////////////////////////////////////////////////////////////////
-/**
- * Returns pointer to selection data for pixel (x,y).
- */
-uint8_t* CxImage::SelectionGetPointer(const int32_t x,const int32_t y)
-{
- if (pSelection && IsInside(x,y)) return pSelection+x+y*head.biWidth;
- return 0;
-}
-////////////////////////////////////////////////////////////////////////////////
-bool CxImage::SelectionFlip()
-{
- if (!pSelection) return false;
-
- uint8_t *buff = (uint8_t*)malloc(head.biWidth);
- if (!buff) return false;
-
- uint8_t *iSrc,*iDst;
- iSrc = pSelection + (head.biHeight-1)*head.biWidth;
- iDst = pSelection;
- for (int32_t i=0; i<(head.biHeight/2); ++i)
- {
- memcpy(buff, iSrc, head.biWidth);
- memcpy(iSrc, iDst, head.biWidth);
- memcpy(iDst, buff, head.biWidth);
- iSrc-=head.biWidth;
- iDst+=head.biWidth;
- }
-
- free(buff);
-
- int32_t top = info.rSelectionBox.top;
- info.rSelectionBox.top = head.biHeight - info.rSelectionBox.bottom;
- info.rSelectionBox.bottom = head.biHeight - top;
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-bool CxImage::SelectionMirror()
-{
- if (!pSelection) return false;
- uint8_t* pSelection2 = (uint8_t*)malloc(head.biWidth * head.biHeight);
- if (!pSelection2) return false;
-
- uint8_t *iSrc,*iDst;
- int32_t wdt=head.biWidth-1;
- iSrc=pSelection + wdt;
- iDst=pSelection2;
- for(int32_t y=0; y < head.biHeight; y++){
- for(int32_t x=0; x <= wdt; x++)
- *(iDst+x)=*(iSrc-x);
- iSrc+=head.biWidth;
- iDst+=head.biWidth;
- }
- free(pSelection);
- pSelection=pSelection2;
-
- int32_t left = info.rSelectionBox.left;
- info.rSelectionBox.left = head.biWidth - info.rSelectionBox.right;
- info.rSelectionBox.right = head.biWidth - left;
- return true;
-}
-////////////////////////////////////////////////////////////////////////////////
-#if CXIMAGE_SUPPORT_WINDOWS
-/**
- * Converts the selection in a HRGN object.
- */
-bool CxImage::SelectionToHRGN(HRGN& region)
-{
- if (pSelection && region){
- for(int32_t y = 0; y < head.biHeight; y++){
- HRGN hTemp = NULL;
- int32_t iStart = -1;
- int32_t x = 0;
- for(; x < head.biWidth; x++){
- if (pSelection[x + y * head.biWidth] != 0){
- if (iStart == -1) iStart = x;
- continue;
- }else{
- if (iStart >= 0){
- hTemp = CreateRectRgn(iStart, y, x, y + 1);
- CombineRgn(region, hTemp, region, RGN_OR);
- DeleteObject(hTemp);
- iStart = -1;
- }
- }
- }
- if (iStart >= 0){
- hTemp = CreateRectRgn(iStart, y, x, y + 1);
- CombineRgn(region, hTemp, region, RGN_OR);
- DeleteObject(hTemp);
- iStart = -1;
- }
- }
- return true;
- }
- return false;
-}
-#endif //CXIMAGE_SUPPORT_WINDOWS
-////////////////////////////////////////////////////////////////////////////////
-#endif //CXIMAGE_SUPPORT_SELECTION
|