1 /*$
2  Copyright (C) 2016-2020 Azel.
3 
4  This file is part of AzPainterB.
5 
6  AzPainterB is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  AzPainterB is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15 
16  You should have received a copy of the GNU General Public License
17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 $*/
19 
20 /***************************************
21  * キャンバスのパラメータ情報
22  ***************************************/
23 
24 #ifndef DEF_CANVASINFO_H
25 #define DEF_CANVASINFO_H
26 
27 /** 倍率、回転の計算時のパラメータ */
28 
29 typedef struct _CanvasViewParam
30 {
31 	double scale,scalediv,	//倍率
32 		rd,					//角度
33 		cos,sin,			//cos,sin 値
34 		cosrev,sinrev;		//cos,sin 逆回転値
35 }CanvasViewParam;
36 
37 /** キャンバス描画用のパラメータ */
38 
39 typedef struct _CanvasDrawInfo
40 {
41 	mBox boxdst;			//描画先範囲
42 	double originx,originy;	//イメージの原点位置
43 	int scrollx,scrolly,	//スクロール
44 		mirror,				//0 以外で左右反転表示
45 		imgw,imgh;
46 	uint32_t bkgndcol;		//イメージ範囲外の色
47 	CanvasViewParam *param;	//計算用パラメータ
48 }CanvasDrawInfo;
49 
50 
51 void CanvasDrawInfo_imageToarea(CanvasDrawInfo *p,double x,double y,double *px,double *py);
52 void CanvasDrawInfo_imageToarea_pt(CanvasDrawInfo *p,double x,double y,mPoint *pt);
53 void CanvasDrawInfo_getImageIncParam(CanvasDrawInfo *p,double *dst);
54 
55 #endif
56