39 lines
1.5 KiB
Objective-C
39 lines
1.5 KiB
Objective-C
//
|
|
// SimpleBitmapRenderer.h
|
|
// Copyright © 2018 Ben Zotto. All rights reserved.
|
|
//
|
|
|
|
#import <Foundation/Foundation.h>
|
|
#import "UIntTypes.h"
|
|
#import "BitmapFont.h"
|
|
#import "MacRomanString.h"
|
|
|
|
@interface SimpleBitmapRenderer : NSObject
|
|
@property (readonly) UIntSize size;
|
|
@property (strong) BitmapFont * currentFont;
|
|
|
|
- (id)initWithSize:(UIntSize)size;
|
|
|
|
// Returns the width from the leftmost origin start to the rightmost pixel for given string
|
|
// in the current font. Will not trim printable whitespace which will be
|
|
// included in measurement.
|
|
- (NSUInteger)measureWidthForString:(MacRomanString *)str;
|
|
|
|
// Render the string onto the canvas using the the origin point (at baseline
|
|
// of first character) with the current font. No line-wrapping or any layout at all.
|
|
- (void)renderString:(MacRomanString *)str atOrigin:(UIntPoint)origin;
|
|
|
|
// Layout the string inside the rect and render onto the canvas. Does
|
|
// best effort simple word wrapping. Does not pixel-clip to the rect; glyphs that will
|
|
// not fall wholly within the rect will not be rendered. The word wrapping algorithm
|
|
// is naive and doesn't handle edge cases like double-spaces.
|
|
- (void)renderString:(MacRomanString *)str inRect:(UIntRect)rect;
|
|
|
|
// Render the complete set of present characters in the current font, into the rect as possible.
|
|
- (void)renderCharSetInRect:(UIntRect)rect;
|
|
|
|
// Retrieving images of the rendered "canvas".
|
|
- (NSString *)bitmapImageAsString;
|
|
- (NSData *)bitmapImageAsPNGDataWithScale:(NSUInteger)scale showingGrid:(BOOL)showGrid;
|
|
@end
|