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LoupeView.m
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//
// LoupeView.m
// cooViewer
//
// Created by coo on 2020/01/02.
//
#import "LoupeView.h"
@implementation LoupeView
-(void)setTargetController:(Controller *)c
{
targetController = c;
}
-(void)setMPoint:(NSPoint)p
{
mPoint = p;
}
-(void)setFRect:(NSRect)fr
{
fRect = fr;
}
-(void)setSRect:(NSRect)sr
{
sRect = sr;
}
-(void)setLensRate:(float)lr
{
lensRate = lr;
}
-(void)setRotateMode:(int)rm
{
rotateMode = rm;
}
-(void)setLensSize:(int)ls
{
lensSize = ls;
}
-(void)setInterpolation:(int)index
{
interpolation = index;
}
-(void)setParentFrame:(NSRect)pf
{
parentFrame = pf;
}
- (void)drawRect:(NSRect)dirtyRect
{
NSPoint iPoint;
NSInteger widthValue,heightValue;
NSGraphicsContext *gc = [NSGraphicsContext currentContext];
[gc saveGraphicsState];
//[gc setShouldAntialias:NO];
switch (interpolation) {
case 1:
[gc setImageInterpolation:NSImageInterpolationNone];
break;
case 2:
[gc setImageInterpolation:NSImageInterpolationLow];
break;
case 3:
[gc setImageInterpolation:NSImageInterpolationHigh];
break;
default:
[gc setImageInterpolation:NSImageInterpolationDefault];
break;
}
[[NSColor blackColor] set];
NSRectFill(NSMakeRect(0,0,lensSize+2,lensSize+2));
if (NSPointInRect(mPoint,fRect) || NSPointInRect(mPoint,sRect)) {
if (NSIsEmptyRect(sRect)) {
NSImage *image;
NSPoint drawPoint = mPoint;
NSAffineTransform *transform = [NSAffineTransform transform];
NSRect tempRect = fRect;
image = [targetController image1];
widthValue = [image size].width;
heightValue = [image size].height;
if (rotateMode==1) {
[transform translateXBy:lensSize yBy:0];
[transform rotateByDegrees:90];
tempRect = NSMakeRect(fRect.origin.y,fRect.origin.x,fRect.size.height,fRect.size.width);
drawPoint.x = mPoint.y;
drawPoint.y = (parentFrame.size.width-mPoint.x);
} else if (rotateMode==2) {
[transform translateXBy:lensSize yBy:lensSize];
[transform rotateByDegrees:180];
drawPoint.x = parentFrame.size.width-mPoint.x;
drawPoint.y = parentFrame.size.height-mPoint.y;
} else if (rotateMode==3) {
[transform translateXBy:0 yBy:lensSize];
[transform rotateByDegrees:270];
tempRect = NSMakeRect(fRect.origin.y,fRect.origin.x,fRect.size.height,fRect.size.width);
drawPoint.x = (parentFrame.size.height-mPoint.y);
drawPoint.y = mPoint.x;
}
float x = [image size].width/tempRect.size.width;
iPoint.x = (int)((drawPoint.x - tempRect.origin.x)*lensRate*x);
iPoint.y = (int)((drawPoint.y - tempRect.origin.y)*lensRate*x);
[transform concat];
[image drawInRect:NSMakeRect((iPoint.x*-1+lensSize/2),(iPoint.y*-1+lensSize/2),widthValue*lensRate,heightValue*lensRate)
fromRect:NSMakeRect(0,0,widthValue,heightValue)
operation:NSCompositeSourceOver fraction:1.0];
[transform invert];
[transform concat];
} else {
//!NSIsEmptyRect(sRect)
NSImage *image;
NSAffineTransform *transform = [NSAffineTransform transform];
NSRect fTempRect = fRect;
NSRect sTempRect = sRect;
NSPoint drawPoint = mPoint;
if (rotateMode==1) {
[transform translateXBy:lensSize yBy:0];
[transform rotateByDegrees:90];
fTempRect = NSMakeRect(fRect.origin.y,fRect.origin.x,fRect.size.height,fRect.size.width);
sTempRect = NSMakeRect(sRect.origin.y,sRect.origin.x,sRect.size.height,sRect.size.width);
drawPoint.x = mPoint.y;
drawPoint.y = parentFrame.size.width-mPoint.x;
} else if (rotateMode==2) {
[transform translateXBy:lensSize yBy:lensSize];
[transform rotateByDegrees:180];
fTempRect = NSMakeRect(sRect.origin.x,fRect.origin.y,fRect.size.width,fRect.size.height);
sTempRect = NSMakeRect(fRect.size.width+sRect.origin.x,sRect.origin.y,sRect.size.width,sRect.size.height);
drawPoint.x = parentFrame.size.width-mPoint.x;
drawPoint.y = parentFrame.size.height-mPoint.y;
} else if (rotateMode==3) {
[transform translateXBy:0 yBy:lensSize];
[transform rotateByDegrees:270];
fTempRect = NSMakeRect(sRect.origin.y,fRect.origin.x,fRect.size.height,fRect.size.width);
sTempRect = NSMakeRect(fRect.size.height,sRect.origin.x,sRect.size.height,sRect.size.width);
drawPoint.x = parentFrame.size.height-mPoint.y;
drawPoint.y = mPoint.x;
}
[transform concat];
if (NSPointInRect(mPoint,fRect)) {
if ([targetController readFromLeft]) {
image = [targetController image1];
} else {
image = [targetController image2];
}
widthValue = [image size].width;
heightValue = [image size].height;
/*
float x = [image size].width/fTempRect.size.width;
iPoint.x = (int)((drawPoint.x - fTempRect.origin.x)*x);
iPoint.y = (int)((drawPoint.y - fTempRect.origin.y)*x);
*/
float x = [image size].width/fTempRect.size.width;
iPoint.x = (int)((drawPoint.x - fTempRect.origin.x)*lensRate*x);
iPoint.y = (int)((drawPoint.y - fTempRect.origin.y)*lensRate*x);
if (NSIntersectsRect(NSMakeRect(mPoint.x-lensSize/2,mPoint.y-lensSize/2,lensSize,lensSize),sRect)) {
NSImage *sImage;
if ([targetController readFromLeft]) {
sImage = [targetController image2];
} else {
sImage = [targetController image1];
}
NSInteger sWidthValue = [sImage size].width;
NSInteger sHeightValue = [sImage size].height;
float sx = [sImage size].width/sTempRect.size.width;
NSPoint sPoint;
sPoint.x = (int)((drawPoint.x - sTempRect.origin.x)*lensRate*x);
sPoint.y = (int)((drawPoint.y - sTempRect.origin.y)*lensRate*x);
[sImage drawInRect:NSMakeRect((sPoint.x*-1+lensSize/2),(sPoint.y*-1+lensSize/2),sWidthValue*lensRate,sHeightValue*lensRate)
fromRect:NSMakeRect(0,0,sWidthValue,sHeightValue)
operation:NSCompositeSourceOver fraction:1.0];
}
} else /*if (NSPointInRect(mPoint,sRect))*/ {
if ([targetController readFromLeft]) {
image = [targetController image2];
} else {
image = [targetController image1];
}
widthValue = [image size].width;
heightValue = [image size].height;
/*
float x = [image size].width/sTempRect.size.width;
iPoint.x = (int)((drawPoint.x - sTempRect.origin.x)*x);
iPoint.y = (int)((drawPoint.y - sTempRect.origin.y)*x);
*/
float x = [image size].width/sTempRect.size.width;
iPoint.x = (int)((drawPoint.x - sTempRect.origin.x)*lensRate*x);
iPoint.y = (int)((drawPoint.y - sTempRect.origin.y)*lensRate*x);
if (NSIntersectsRect(NSMakeRect(mPoint.x-lensSize/2,mPoint.y-lensSize/2,lensSize,lensSize),fRect)) {
NSImage *sImage;
if ([targetController readFromLeft]) {
sImage = [targetController image1];
} else {
sImage = [targetController image2];
}
NSInteger sWidthValue = [sImage size].width;
NSInteger sHeightValue = [sImage size].height;
float sx = [sImage size].width/fTempRect.size.width;
NSPoint sPoint;
sPoint.x = (int)((drawPoint.x - fTempRect.origin.x)*lensRate*x);
sPoint.y = (int)((drawPoint.y - fTempRect.origin.y)*lensRate*x);
[sImage drawInRect:NSMakeRect((sPoint.x*-1+lensSize/2),(sPoint.y*-1+lensSize/2),sWidthValue*lensRate,sHeightValue*lensRate)
fromRect:NSMakeRect(0,0,sWidthValue,sHeightValue)
operation:NSCompositeSourceOver fraction:1.0];
}
}
[image drawInRect:NSMakeRect((iPoint.x*-1+lensSize/2),(iPoint.y*-1+lensSize/2),widthValue*lensRate,heightValue*lensRate)
fromRect:NSMakeRect(0,0,widthValue,heightValue)
operation:NSCompositeSourceOver fraction:1.0];
[transform invert];
[transform concat];
}
}
[[NSColor lightGrayColor] set];
NSFrameRectWithWidth(NSMakeRect(0,0,lensSize,lensSize),1.0);
[gc restoreGraphicsState];
}
@end