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Diffstat (limited to 'tikzit-old/src/common/Transformer.h')
| -rw-r--r-- | tikzit-old/src/common/Transformer.h | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/tikzit-old/src/common/Transformer.h b/tikzit-old/src/common/Transformer.h deleted file mode 100644 index 1b0108a..0000000 --- a/tikzit-old/src/common/Transformer.h +++ /dev/null @@ -1,154 +0,0 @@ -// -// Transformer.h -// TikZiT -// -// Copyright 2010 Aleks Kissinger. All rights reserved. -// -// -// This file is part of TikZiT. -// -// TikZiT 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 3 of the License, or -// (at your option) any later version. -// -// TikZiT 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 TikZiT. If not, see <http://www.gnu.org/licenses/>. -// - - -#import <Foundation/Foundation.h> - -extern float const PIXELS_PER_UNIT; - -/*! - @class Transformer - @brief Do affine coordinate transforms between an abstract co-ordinate - space (such as the graph's) and the screen's. - - This currently allows zooming and panning. - */ -@interface Transformer : NSObject <NSCopying> { - NSPoint origin; - float x_scale; - float y_scale; -} - -/*! - @brief The screen co-ordinate of the abstract space origin. - */ -@property (assign) NSPoint origin; - -/*! - @brief The scale (from abstract space to screen space) - @detail This is the size of a single unit (a distance of 1.0) - of the abstract space on the screen. - - Around 50 is a reasonable value. - */ -@property (assign) float scale; - -/*! - @brief Whether co-ordinates are flipped about the X axis - @detail TikZ considers X co-ordinates to run left to right, - which is not necessarily how the screen views - them. - */ -@property (assign,getter=isFlippedAboutXAxis) BOOL flippedAboutXAxis; - -/*! - @brief Whether co-ordinates are flipped about the Y axis - @detail TikZ considers Y co-ordinates to run up the page, - which is not necessarily how the screen views - them. - */ -@property (assign,getter=isFlippedAboutYAxis) BOOL flippedAboutYAxis; - -/*! - @brief Transform a point from screen space to abstract space. - @param p a point in screen space. - @result A point in abstract space. - */ -- (NSPoint)fromScreen:(NSPoint)p; - -/*! - @brief Transform a point from abstract space to screen space. - @param p a point in abstract space. - @result A point in screen space. - */ -- (NSPoint)toScreen:(NSPoint)p; - -/*! - @brief Scale a distance from screen space to abstract space. - @param dist a distance in screen space. - @result A distance in abstract space. - */ -- (float)scaleFromScreen:(float)dist; - -/*! - @brief Scale a distance from abstract space to screen space. - @param dist a distance in abstract space. - @result A distance in screen space. - */ -- (float)scaleToScreen:(float)dist; - -/*! - @brief Scale a rectangle from screen space to abstract space. - @param r a rectangle in screen space. - @result A rectangle in abstract space. - */ -- (NSRect)rectFromScreen:(NSRect)r; - -/*! - @brief Scale a rectangle from abstract space to screen space. - @param r a rectangle in abstract space. - @result A rectangle in screen space. - */ -- (NSRect)rectToScreen:(NSRect)r; - -/*! - @brief Factory method to get an identity transformer. - @result A transformer. - */ -+ (Transformer*)transformer; - -/*! - @brief Factory method to get a transformer identical to another - @result A transformer. - */ -+ (Transformer*)transformerWithTransformer:(Transformer*)t; - -/*! - @brief Factory method to get a transformer. - @param o The screen co-ordinate of the abstract space origin - @param scale The scale (from abstract space to screen space) - @result A transformer. - */ -+ (Transformer*)transformerWithOrigin:(NSPoint)o andScale:(float)scale; - -/*! - @brief Get a global 'actual size' transformer. - @result A transformer. - */ -+ (Transformer*)defaultTransformer; - -/*! - @brief A transformer set up from two bounding rects. - - graphRect is made as large as possible while still fitting into screenRect. - @result A transformer. - */ -+ (Transformer*)transformerToFit:(NSRect)graphRect intoScreenRect:(NSRect)screenRect flippedAboutXAxis:(BOOL)flipX flippedAboutYAxis:(BOOL)flipY; - -+ (Transformer*)transformerToFit:(NSRect)graphRect intoScreenRect:(NSRect)screenRect flippedAboutXAxis:(BOOL)flipX; -+ (Transformer*)transformerToFit:(NSRect)graphRect intoScreenRect:(NSRect)screenRect flippedAboutYAxis:(BOOL)flipY; -+ (Transformer*)transformerToFit:(NSRect)graphRect intoScreenRect:(NSRect)screenRect; - -@end - -// vi:ft=objc:noet:ts=4:sts=4:sw=4 |