• enabled thumbnail images of spatial geometry fields as tooltips

- note: geometrycollection support will follow soon

1 files changed, 46 insertions, 15 deletions

diff --git a/Source/SPGeometryDataView.m b/Source/SPGeometryDataView.m
index 0a5a0294..ee27f15f 100644
--- a/Source/SPGeometryDataView.m
+++ b/Source/SPGeometryDataView.m
@@ -33,51 +33,63 @@
 - (id)initWithCoordinates:(NSDictionary*)coord
 {
 
+	CGFloat maxDim;
+	CGFloat targetDim = 400.0;
+
 	margin_offset = 10.0;
 
 	type = [coord objectForKey:@"type"];
 	coordinates = [coord objectForKey:@"coordinates"];
+
 	x_min = (CGFloat)[[[coord objectForKey:@"bbox"] objectAtIndex:0] doubleValue];
 	x_max = (CGFloat)[[[coord objectForKey:@"bbox"] objectAtIndex:1] doubleValue];
 	y_min = (CGFloat)[[[coord objectForKey:@"bbox"] objectAtIndex:2] doubleValue];
 	y_max = (CGFloat)[[[coord objectForKey:@"bbox"] objectAtIndex:3] doubleValue];
-	zoom_factor = 1.0;
 
 	width = x_max - x_min;
 	height = y_max - y_min;
 
-	// make it a square due to aspect ratio
-	if(width>height)
-		height = width;
+	maxDim = (width > height) ? width : height;
+	if(maxDim != 0)
+		zoom_factor = targetDim/maxDim;
 	else
-		width = height;
+		zoom_factor = 1.0;
+
+	width*=zoom_factor;
+	height*=zoom_factor;
+	x_min*=zoom_factor;
+	y_min*=zoom_factor;
 
 	if ( self = [super initWithFrame:NSMakeRect(0,0,width+margin_offset*2,height+margin_offset*2)] )
 	{
 		;
 	}
+
 	return self;
 }
 
 - (NSPoint)normalizePoint:(NSPoint)aPoint
 {
 
+	aPoint.x*=zoom_factor;
+	aPoint.y*=zoom_factor;
 	aPoint.x-=x_min;
 	aPoint.y-=y_min;
 	aPoint.x+=margin_offset;
 	aPoint.y+=margin_offset;
-
 	return aPoint;
 }
 
 - (void)drawPoint:(NSPoint)aPoint
 {
+
 	NSBezierPath *circlePath = [NSBezierPath bezierPath];
-	[circlePath appendBezierPathWithOvalInRect:NSMakeRect(aPoint.x-2,aPoint.y-2,4,4)];
+	[circlePath appendBezierPathWithOvalInRect:NSMakeRect(aPoint.x-5,aPoint.y-5,10,10)];
 	[[NSColor grayColor] setStroke];
 	[[NSColor redColor] setFill];
 	[circlePath stroke];
 	[circlePath fill];
+
 }
 
 - (void)drawRect:(NSRect)dirtyRect
@@ -86,14 +98,17 @@
 	if(!type || ![type length] || !coordinates || ![coordinates count]) return;
 
 	NSBezierPath *path;
-	NSColor *polyFillColor = [NSColor colorWithCalibratedRed:.5 green:.5 blue:0.5 alpha:0.05];
+	NSColor *polyFillColor1 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:0.0 alpha:0.1];
+	NSColor *polyFillColor2 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:1.0 alpha:0.1];
+	NSColor *polyFillColor3 = [NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:0.1];
 	BOOL isFirst = YES;
 
 	NSPoint aPoint;
 
+	// Draw a rect as border
 	path = [NSBezierPath bezierPathWithRect:[self bounds]];
 	[path setLineWidth:0.1];
-	[[NSColor whiteColor] set];
+	[[NSColor colorWithCalibratedRed:1 green:1 blue:1 alpha:0.96] set];
 	[path fill];
 	[[NSColor grayColor] set];
 	[path stroke];
@@ -109,7 +124,6 @@
 	else if([type hasSuffix:@"LINESTRING"]) {
 
 		for(NSArray* lines in coordinates) {
-			path = [NSBezierPath bezierPath];
 			isFirst = YES;
 			for(NSString* coord in lines) {
 				aPoint = [self normalizePoint:NSPointFromString(coord)];
@@ -126,6 +140,7 @@
 		}
 	}
 	else if([type hasSuffix:@"POLYGON"]) {
+		NSUInteger i = 0;
 		for(NSArray* polygons in coordinates) {
 			isFirst = YES;
 			for(NSString* coord in polygons) {
@@ -139,21 +154,37 @@
 				[self drawPoint:aPoint];
 			}
 			[[NSColor blackColor] setStroke];
-			[polyFillColor setFill];
+			switch(i) {
+				case 0: [polyFillColor1 setFill];
+				break;
+				case 1: [polyFillColor2 setFill];
+				break;
+				case 2: [polyFillColor3 setFill];
+				break;
+			}
 			[path fill];
 			[path stroke];
+			i++;
+			if(i>2) i=0;
 		}
 
 	}
 }
 
-- (NSImage*)image
+- (NSImage*)thumbnailImage
 {
 
-	[self drawRect:[self bounds]];
+	if(!type || ![type length] || !coordinates || ![coordinates count]) return nil;
+
+	NSSize mySize = self.bounds.size;
+	NSSize imgSize = NSMakeSize( mySize.width, mySize.height );
+	NSRect myBounds = [self bounds];
+
+	NSBitmapImageRep *bitmap = [self bitmapImageRepForCachingDisplayInRect:myBounds];
+	[bitmap setSize:imgSize];
+	[self cacheDisplayInRect:myBounds toBitmapImageRep:bitmap];
 
-	NSImage *image = [[[NSImage alloc] initWithSize:[self bounds].size] autorelease];
-	NSBitmapImageRep *bitmap = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:[self bounds]] autorelease];
+	NSImage* image = [[[NSImage alloc]initWithSize:imgSize] autorelease];
 	[image addRepresentation:bitmap];
 	return image;