// // $Id$ // // SPGeometryDataView.h // sequel-pro // // Created by Hans-Jörg Bibiko on October 08, 2010 // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // More info at <http://code.google.com/p/sequel-pro/> #import "SPGeometryDataView.h" @interface SPGeometryDataView (PrivateAPI) - (NSPoint)_normalizePoint:(NSPoint)aPoint; - (void)_drawPoint:(NSPoint)aPoint; @end #pragma mark - @implementation SPGeometryDataView /** * Initialize SPGeometryDataView object with default targetDimension * * @param coord Contains all necessary data to draw the geometry image * */ - (id)initWithCoordinates:(NSDictionary*)coord { return [self initWithCoordinates:coord targetDimension:400.0f]; } /** * Initialize SPGeometryDataView object * * @param coord Contains all necessary data to draw the geometry image * * @param targetDimension Sets the maximum size (height or width) of the image */ - (id)initWithCoordinates:(NSDictionary*)coord targetDimension:(CGFloat)targetDimension { margin_offset = 10.0f; 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]; width = x_max - x_min; height = y_max - y_min; CGFloat maxDim = (width > height) ? width : height; if(maxDim != 0) zoom_factor = targetDimension/maxDim; else zoom_factor = 1.0f; 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)]) ) { } lineColor = [NSColor blackColor]; borderLineColor = [NSColor grayColor]; backgroundColor = [NSColor colorWithCalibratedRed:1 green:1 blue:1 alpha:0.96f]; pointFillColor = [NSColor redColor]; pointStrokeColor = [NSColor grayColor]; polygonFillColor1 = [NSColor colorWithCalibratedRed:0.0f green:1.0f blue:0.0f alpha:0.1f]; polygonFillColor2 = [NSColor colorWithCalibratedRed:0.0f green:1.0f blue:1.0f alpha:0.1f]; polygonFillColor3 = [NSColor colorWithCalibratedRed:1.0f green:0.0f blue:0.0f alpha:0.1f]; lineWidth = 1.0f; return self; } - (void)drawRect:(NSRect)dirtyRect { if(!type || ![type length] || !coordinates || ![coordinates count]) return; NSBezierPath *path; BOOL isFirst = YES; NSPoint aPoint; // Draw a rect as border path = [NSBezierPath bezierPathWithRect:[self bounds]]; [path setLineWidth:0.1f]; [backgroundColor set]; [path fill]; [borderLineColor set]; [path stroke]; path = [NSBezierPath bezierPath]; [lineColor set]; [path setLineWidth:lineWidth]; if ([type hasSuffix:@"POINT"]) { for(NSString* coord in coordinates) [self _drawPoint:[self _normalizePoint:NSPointFromString(coord)]]; } else if([type hasSuffix:@"LINESTRING"]) { for(NSArray* lines in coordinates) { isFirst = YES; path = [NSBezierPath bezierPath]; [path setLineWidth:lineWidth]; for(NSString* coord in lines) { aPoint = [self _normalizePoint:NSPointFromString(coord)]; if(isFirst) { [path moveToPoint:aPoint]; isFirst = NO; } else { [path lineToPoint:aPoint]; } [self _drawPoint:aPoint]; } [lineColor setStroke]; [path stroke]; } } else if([type hasSuffix:@"POLYGON"]) { NSUInteger i = 0; // polygon fill color alternating for(NSArray* polygons in coordinates) { isFirst = YES; path = [NSBezierPath bezierPath]; [path setLineWidth:lineWidth]; for(NSString* coord in polygons) { aPoint = [self _normalizePoint:NSPointFromString(coord)]; if(isFirst) { [path moveToPoint:aPoint]; isFirst = NO; } else { [path lineToPoint:aPoint]; } [self _drawPoint:aPoint]; } [lineColor setStroke]; switch(i) { case 0: [polygonFillColor1 setFill]; break; case 1: [polygonFillColor2 setFill]; break; case 2: [polygonFillColor3 setFill]; break; } [path fill]; [path stroke]; i++; if(i>2) i=0; } } else if([type isEqualToString:@"GEOMETRYCOLLECTION"]) { // First array contains all points for(NSString* coord in [coordinates objectAtIndex:0]) { [self _drawPoint:[self _normalizePoint:NSPointFromString(coord)]]; } // Second array contains all linestrings for(NSArray* lines in [coordinates objectAtIndex:1]) { isFirst = YES; path = [NSBezierPath bezierPath]; [path setLineWidth:lineWidth]; for(NSString* coord in lines) { aPoint = [self _normalizePoint:NSPointFromString(coord)]; if(isFirst) { [path moveToPoint:aPoint]; isFirst = NO; } else { [path lineToPoint:aPoint]; } [self _drawPoint:aPoint]; } [lineColor setStroke]; [path stroke]; } // Third array contains all polygons NSUInteger i = 0; // polygon fill color alternating for(NSArray* polygons in [coordinates objectAtIndex:2]) { isFirst = YES; path = [NSBezierPath bezierPath]; [path setLineWidth:lineWidth]; for(NSString* coord in polygons) { aPoint = [self _normalizePoint:NSPointFromString(coord)]; if(isFirst) { [path moveToPoint:aPoint]; isFirst = NO; } else { [path lineToPoint:aPoint]; } [self _drawPoint:aPoint]; } [lineColor setStroke]; switch(i) { case 0: [polygonFillColor1 setFill]; break; case 1: [polygonFillColor2 setFill]; break; case 2: [polygonFillColor3 setFill]; break; } [path fill]; [path stroke]; i++; if(i>2) i=0; } } } /** * Return the geometry as NSImage by using targetDimension */ - (NSImage*)thumbnailImage { 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:imgSize] autorelease]; [image addRepresentation:bitmap]; return image; } /** * Return PDF data of the geometry image */ - (NSData*)pdfData { if(!type || ![type length] || !coordinates || ![coordinates count]) return nil; NSRect myBounds = [self bounds]; return [self dataWithPDFInsideRect:myBounds]; } /** * dealloc */ - (void)dealloc { [super dealloc]; } @end #pragma mark - #pragma mark PrivateAPI @implementation SPGeometryDataView (PrivateAPI) /** * Converts original NSPoint to target coordinates */ - (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; } /** * Draw a point at aPoint representing the original coordinate */ - (void)_drawPoint:(NSPoint)aPoint { NSBezierPath *circlePath = [NSBezierPath bezierPath]; [circlePath appendBezierPathWithOvalInRect:NSMakeRect(aPoint.x-5,aPoint.y-5,10,10)]; [pointStrokeColor setStroke]; [pointFillColor setFill]; [circlePath stroke]; [circlePath fill]; } @end