summaryrefslogtreecommitdiff
path: root/core/include/fxcrt/fx_coordinates.h
blob: 15d3a642e862a97a5c51f84a9912c021243253fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#ifndef _FXCRT_COORDINATES_
#define _FXCRT_COORDINATES_
template<class baseType> class CFX_PSVTemplate;
template<class baseType> class CFX_VTemplate;
template<class baseType> class CFX_PRLTemplate;
template<class baseType> class CFX_RTemplate;
template<class baseType> class CFX_ETemplate;
template<class baseType> class CFX_ATemplate;
template<class baseType> class CFX_RRTemplate;
class CFX_Matrix;
template<class baseType>
class CFX_PSVTemplate : public CFX_Object
{
public:
    typedef CFX_PSVTemplate<baseType>	FXT_PSV;
    typedef CFX_PSVTemplate<baseType>	FXT_POINT;
    typedef CFX_PSVTemplate<baseType>	FXT_SIZE;
    void		Set(baseType x, baseType y)
    {
        FXT_PSV::x = x, FXT_PSV::y = y;
    }
    void		Set(const FXT_PSV &psv)
    {
        FXT_PSV::x = psv.x, FXT_PSV::y = psv.y;
    }
    void		Add(baseType x, baseType y)
    {
        FXT_PSV::x += x, FXT_PSV::y += y;
    }
    void		Subtract(baseType x, baseType y)
    {
        FXT_PSV::x -= x, FXT_PSV::y -= y;
    }
    void		Reset()
    {
        FXT_PSV::x = FXT_PSV::y = 0;
    }
    FXT_PSV&	operator += (const FXT_PSV &obj)
    {
        x += obj.x;
        y += obj.y;
        return *this;
    }
    FXT_PSV&	operator -= (const FXT_PSV &obj)
    {
        x -= obj.x;
        y -= obj.y;
        return *this;
    }
    FXT_PSV&	operator *= (baseType lamda)
    {
        x *= lamda;
        y *= lamda;
        return *this;
    }
    FXT_PSV&	operator /= (baseType lamda)
    {
        x /= lamda;
        y /= lamda;
        return *this;
    }
    friend	FX_BOOL		operator == (const FXT_PSV &obj1, const FXT_PSV &obj2)
    {
        return obj1.x == obj2.x && obj1.y == obj2.y;
    }
    friend	FX_BOOL		operator != (const FXT_PSV &obj1, const FXT_PSV &obj2)
    {
        return obj1.x != obj2.x || obj1.y != obj2.y;
    }
    friend	FXT_PSV		operator + (const FXT_PSV &obj1, const FXT_PSV &obj2)
    {
        CFX_PSVTemplate obj;
        obj.x = obj1.x + obj2.x;
        obj.y = obj1.y + obj2.y;
        return obj;
    }
    friend	FXT_PSV		operator - (const FXT_PSV &obj1, const FXT_PSV &obj2)
    {
        CFX_PSVTemplate obj;
        obj.x = obj1.x - obj2.x;
        obj.y = obj1.y - obj2.y;
        return obj;
    }
    friend	FXT_PSV		operator * (const FXT_PSV &obj, baseType lamda)
    {
        CFX_PSVTemplate t;
        t.x = obj.x * lamda;
        t.y = obj.y * lamda;
        return t;
    }
    friend	FXT_PSV		operator * (baseType lamda, const FXT_PSV &obj)
    {
        CFX_PSVTemplate t;
        t.x = lamda * obj.x;
        t.y = lamda * obj.y;
        return t;
    }
    friend	FXT_PSV		operator / (const FXT_PSV &obj, baseType lamda)
    {
        CFX_PSVTemplate t;
        t.x = obj.x / lamda;
        t.y = obj.y / lamda;
        return t;
    }
    baseType x, y;
};
typedef CFX_PSVTemplate<FX_INT32>			CFX_Point;
typedef CFX_PSVTemplate<FX_FLOAT>			CFX_PointF;
typedef CFX_PSVTemplate<FX_INT32>			CFX_Size;
typedef CFX_PSVTemplate<FX_FLOAT>			CFX_SizeF;
typedef CFX_ArrayTemplate<CFX_Point>		CFX_Points;
typedef CFX_ArrayTemplate<CFX_PointF>		CFX_PointsF;
typedef CFX_PSVTemplate<FX_INT32> *			FX_LPPOINT;
typedef CFX_PSVTemplate<FX_FLOAT> *			FX_LPPOINTF;
typedef CFX_PSVTemplate<FX_INT32> const *	FX_LPCPOINT;
typedef CFX_PSVTemplate<FX_FLOAT> const *	FX_LPCPOINTF;
#define CFX_FloatPoint	CFX_PointF
template<class baseType>
class CFX_VTemplate: public CFX_PSVTemplate<baseType>
{
public:
    typedef CFX_PSVTemplate<baseType>	FXT_PSV;
    typedef CFX_PSVTemplate<baseType>	FXT_POINT;
    typedef CFX_PSVTemplate<baseType>	FXT_SIZE;
    typedef CFX_VTemplate<baseType>		FXT_VECTOR;
    void		Set(baseType x, baseType y)
    {
        FXT_PSV::x = x, FXT_PSV::y = y;
    }
    void		Set(const FXT_PSV &psv)
    {
        FXT_PSV::x = psv.x, FXT_PSV::y = psv.y;
    }
    void		Set(const FXT_POINT &p1, const FXT_POINT &p2)
    {
        FXT_PSV::x = p2.x - p1.x, FXT_PSV::y = p2.y - p1.y;
    }
    void		Reset()
    {
        FXT_PSV::x = FXT_PSV::y = 0;
    }
    baseType	SquareLength() const
    {
        return FXT_PSV::x * FXT_PSV::x + FXT_PSV::y * FXT_PSV::y;
    }
    baseType	Length() const
    {
        return FXSYS_sqrt(FXT_PSV::x * FXT_PSV::x + FXT_PSV::y * FXT_PSV::y);
    }
    void		Normalize()
    {
        FX_FLOAT fLen = FXSYS_sqrt(FXT_PSV::x * FXT_PSV::x + FXT_PSV::y * FXT_PSV::y);
        if (fLen < 0.0001f) {
            return;
        }
        FXT_PSV::x = ((baseType)FXT_PSV::x) / fLen;
        FXT_PSV::y = ((baseType)FXT_PSV::y) / fLen;
    }
    baseType	DotProduct(baseType x, baseType y) const
    {
        return FXT_PSV::x * x + FXT_PSV::y * y;
    }
    baseType	DotProduct(const FXT_VECTOR &v) const
    {
        return FXT_PSV::x * v.x + FXT_PSV::y * v.y;
    }
    FX_BOOL		IsParallel(baseType x, baseType y) const
    {
        baseType t = FXT_PSV::x * y - FXT_PSV::y * x;
        return FXSYS_fabs(t) < 0x0001f;
    }
    FX_BOOL		IsParallel(const FXT_VECTOR &v) const
    {
        return IsParallel(v.x, v.y);
    }
    FX_BOOL		IsPerpendicular(baseType x, baseType y) const
    {
        baseType t = DotProduct(x, y);
        return FXSYS_fabs(t) < 0x0001f;
    }
    FX_BOOL		IsPerpendicular(const FXT_VECTOR &v) const
    {
        return IsPerpendicular(v.x, v.y);
    }
    void		Translate(baseType dx, baseType dy)
    {
        FXT_PSV::x += dx, FXT_PSV::y += dy;
    }
    void		Scale(baseType sx, baseType sy)
    {
        FXT_PSV::x *= sx, FXT_PSV::y *= sy;
    }
    void		Rotate(FX_FLOAT fRadian)
    {
        FX_FLOAT xx = (FX_FLOAT)FXT_PSV::x;
        FX_FLOAT yy = (FX_FLOAT)FXT_PSV::y;
        FX_FLOAT cosValue = FXSYS_cos(fRadian);
        FX_FLOAT sinValue = FXSYS_sin(fRadian);
        FXT_PSV::x = xx * cosValue - yy * sinValue;
        FXT_PSV::y = xx * sinValue + yy * cosValue;
    }
    friend	FX_FLOAT	Cosine(const FXT_VECTOR &v1, const FXT_VECTOR &v2)
    {
        FXSYS_assert(v1.SquareLength() != 0 && v2.SquareLength() != 0);
        FX_FLOAT dotProduct = v1.DotProduct(v2);
        return dotProduct / (FX_FLOAT)FXSYS_sqrt(v1.SquareLength() * v2.SquareLength());
    }
    friend	FX_FLOAT	ArcCosine(const FXT_VECTOR &v1, const FXT_VECTOR &v2)
    {
        return (FX_FLOAT)FXSYS_acos(Cosine(v1, v2));
    }
    friend	FX_FLOAT	SlopeAngle(const FXT_VECTOR &v)
    {
        CFX_VTemplate vx;
        vx.Set(1, 0);
        FX_FLOAT fSlope = ArcCosine(v, vx);
        return v.y < 0 ? -fSlope : fSlope;
    }
};
typedef CFX_VTemplate<FX_INT32> CFX_Vector;
typedef CFX_VTemplate<FX_FLOAT> CFX_VectorF;
template<class baseType>
class CFX_RTemplate: public CFX_Object
{
public:
    typedef CFX_PSVTemplate<baseType>	FXT_POINT;
    typedef CFX_PSVTemplate<baseType>	FXT_SIZE;
    typedef CFX_VTemplate<baseType>		FXT_VECTOR;
    typedef CFX_PRLTemplate<baseType>	FXT_PARAL;
    typedef CFX_RTemplate<baseType>		FXT_RECT;
    void		Set(baseType left, baseType top, baseType width, baseType height)
    {
        FXT_RECT::left = left, FXT_RECT::top = top, FXT_RECT::width = width, FXT_RECT::height = height;
    }
    void		Set(baseType left, baseType top, const FXT_SIZE &size)
    {
        FXT_RECT::left = left, FXT_RECT::top = top, FXT_RECT::Size(size);
    }
    void		Set(const FXT_POINT &p, baseType width, baseType height)
    {
        TopLeft(p), FXT_RECT::width = width, FXT_RECT::height = height;
    }
    void		Set(const FXT_POINT &p1, const FXT_POINT &p2)
    {
        TopLeft(p1), FXT_RECT::width = p2.x - p1.x, FXT_RECT::height = p2.y - p1.y, FXT_RECT::Normalize();
    }
    void		Set(const FXT_POINT &p, const FXT_VECTOR &v)
    {
        TopLeft(p), FXT_RECT::width = v.x, FXT_RECT::height = v.y, FXT_RECT::Normalize();
    }
    void		Reset()
    {
        FXT_RECT::left = FXT_RECT::top = FXT_RECT::width = FXT_RECT::height = 0;
    }
    FXT_RECT&	operator += (const FXT_POINT &p)
    {
        left += p.x, top += p.y;
        return *this;
    }
    FXT_RECT&	operator -= (const FXT_POINT &p)
    {
        left -= p.x, top -= p.y;
        return *this;
    }
    baseType	right() const
    {
        return left + width;
    }
    baseType	bottom() const
    {
        return top + height;
    }
    void		Normalize()
    {
        if (width < 0) {
            left += width;
            width = -width;
        }
        if (height < 0) {
            top += height;
            height = -height;
        }
    }
    void		Offset(baseType dx, baseType dy)
    {
        left += dx;
        top += dy;
    }
    void		Inflate(baseType x, baseType y)
    {
        left -= x;
        width += x * 2;
        top -= y;
        height += y * 2;
    }
    void		Inflate(const FXT_POINT &p)
    {
        Inflate(p.x, p.y);
    }
    void		Inflate(baseType left, baseType top, baseType right, baseType bottom)
    {
        FXT_RECT::left -= left;
        FXT_RECT::top -= top;
        FXT_RECT::width += left + right;
        FXT_RECT::height += top + bottom;
    }
    void		Inflate(const FXT_RECT &rt)
    {
        Inflate(rt.left, rt.top, rt.left + rt.width, rt.top + rt.height);
    }
    void		Deflate(baseType x, baseType y)
    {
        left += x;
        width -= x * 2;
        top += y;
        height -= y * 2;
    }
    void		Deflate(const FXT_POINT &p)
    {
        Deflate(p.x, p.y);
    }
    void		Deflate(baseType left, baseType top, baseType right, baseType bottom)
    {
        FXT_RECT::left += left;
        FXT_RECT::top += top;
        FXT_RECT::width -= left + right;
        FXT_RECT::height -= top + bottom;
    }
    void		Deflate(const FXT_RECT &rt)
    {
        Deflate(rt.left, rt.top, rt.top + rt.width, rt.top + rt.height);
    }
    FX_BOOL		IsEmpty() const
    {
        return width <= 0 || height <= 0;
    }
    FX_BOOL		IsEmpty(FX_FLOAT fEpsilon) const
    {
        return width <= fEpsilon || height <= fEpsilon;
    }
    void		Empty()
    {
        width = height = 0;
    }
    FX_BOOL		Contains(baseType x, baseType y) const
    {
        return x >= left && x < left + width && y >= top && y < top + height;
    }
    FX_BOOL		Contains(const FXT_POINT &p) const
    {
        return Contains(p.x, p.y);
    }
    FX_BOOL		Contains(const FXT_RECT &rt) const
    {
        return rt.left >= left && rt.right() <= right() && rt.top >= top && rt.bottom() <= bottom();
    }
    baseType	Width() const
    {
        return width;
    }
    baseType	Height() const
    {
        return height;
    }
    FXT_SIZE	Size() const
    {
        FXT_SIZE size;
        size.Set(width, height);
        return size;
    }
    void		Size(FXT_SIZE s)
    {
        width = s.x, height = s.y;
    }
    FXT_POINT	TopLeft() const
    {
        FXT_POINT p;
        p.x = left;
        p.y = top;
        return p;
    }
    FXT_POINT	TopRight() const
    {
        FXT_POINT p;
        p.x = left + width;
        p.y = top;
        return p;
    }
    FXT_POINT	BottomLeft() const
    {
        FXT_POINT p;
        p.x = left;
        p.y = top + height;
        return p;
    }
    FXT_POINT	BottomRight() const
    {
        FXT_POINT p;
        p.x = left + width;
        p.y = top + height;
        return p;
    }
    void		TopLeft(FXT_POINT tl)
    {
        left = tl.x;
        top = tl.y;
    }
    void		TopRight(FXT_POINT tr)
    {
        width = tr.x - left;
        top = tr.y;
    }
    void		BottomLeft(FXT_POINT bl)
    {
        left = bl.x;
        height = bl.y - top;
    }
    void		BottomRight(FXT_POINT br)
    {
        width = br.x - left;
        height = br.y - top;
    }
    FXT_POINT	Center() const
    {
        FXT_POINT p;
        p.x = left + width / 2;
        p.y = top + height / 2;
        return p;
    }
    void		GetParallelogram(FXT_PARAL &pg) const
    {
        pg.x = left, pg.y = top;
        pg.x1 = width, pg.y1 = 0;
        pg.x2 = 0, pg.y2 = height;
    }
    void		Union(baseType x, baseType y)
    {
        baseType r = right(), b = bottom();
        if (left > x) {
            left = x;
        }
        if (r < x) {
            r = x;
        }
        if (top > y) {
            top = y;
        }
        if (b < y) {
            b = y;
        }
        width = r - left;
        height = b - top;
    }
    void		Union(const FXT_POINT &p)
    {
        Union(p.x, p.y);
    }
    void		Union(const FXT_RECT &rt)
    {
        baseType r = right(), b = bottom();
        if (left > rt.left) {
            left = rt.left;
        }
        if (r < rt.right()) {
            r = rt.right();
        }
        if (top > rt.top) {
            top = rt.top;
        }
        if (b < rt.bottom()) {
            b = rt.bottom();
        }
        width = r - left;
        height = b - top;
    }
    void		Intersect(const FXT_RECT &rt)
    {
        baseType r = right(), b = bottom();
        if (left < rt.left) {
            left = rt.left;
        }
        if (r > rt.right()) {
            r = rt.right();
        }
        if (top < rt.top) {
            top = rt.top;
        }
        if (b > rt.bottom()) {
            b = rt.bottom();
        }
        width = r - left;
        height = b - top;
    }
    FX_BOOL		IntersectWith(const FXT_RECT &rt) const
    {
        FXT_RECT rect = rt;
        rect.Intersect(*this);
        return !rect.IsEmpty();
    }
    FX_BOOL		IntersectWith(const FXT_RECT &rt, FX_FLOAT fEpsilon) const
    {
        FXT_RECT rect = rt;
        rect.Intersect(*this);
        return !rect.IsEmpty(fEpsilon);
    }
    friend	FX_BOOL	operator == (const FXT_RECT &rc1, const FXT_RECT &rc2)
    {
        return rc1.left == rc2.left && rc1.top == rc2.top && rc1.width == rc2.width && rc1.height == rc2.height;
    }
    friend	FX_BOOL	operator != (const FXT_RECT &rc1, const FXT_RECT &rc2)
    {
        return rc1.left != rc2.left || rc1.top != rc2.top || rc1.width != rc2.width || rc1.height != rc2.height;
    }
    baseType left, top;
    baseType width, height;
};
typedef CFX_RTemplate<FX_INT32>			CFX_Rect;
typedef CFX_RTemplate<FX_FLOAT>			CFX_RectF;
typedef CFX_RTemplate<FX_INT32> *		FX_LPRECT;
typedef CFX_RTemplate<FX_FLOAT> *		FX_LPRECTF;
typedef CFX_RTemplate<FX_INT32> const *	FX_LPCRECT;
typedef CFX_RTemplate<FX_FLOAT> const *	FX_LPCRECTF;
typedef CFX_ArrayTemplate<CFX_RectF>	CFX_RectFArray;
struct FX_RECT {

    int			left;

    int			top;

    int			right;

    int			bottom;

    FX_RECT(): left(0), top(0), right(0), bottom(0) { }

    FX_RECT(int left1, int top1, int right1, int bottom1)
    {
        left = left1;
        top = top1;
        right = right1;
        bottom = bottom1;
    }

    int			Width() const
    {
        return right - left;
    }

    int			Height() const
    {
        return bottom - top;
    }

    FX_BOOL		IsEmpty() const
    {
        return right <= left || bottom <= top;
    }

    void		Normalize();

    void		Intersect(const FX_RECT& src);

    void		Intersect(int left1, int top1, int right1, int bottom1)
    {
        Intersect(FX_RECT(left1, top1, right1, bottom1));
    }

    void		Union(const FX_RECT& other_rect);

    FX_BOOL		operator == (const FX_RECT& src) const
    {
        return left == src.left && right == src.right && top == src.top && bottom == src.bottom;
    }

    void		Offset(int dx, int dy)
    {
        left += dx;
        right += dx;
        top += dy;
        bottom += dy;
    }

    FX_BOOL		Contains(const FX_RECT& other_rect) const
    {
        return other_rect.left >= left && other_rect.right <= right && other_rect.top >= top && other_rect.bottom <= bottom;
    }

    FX_BOOL		Contains(int x, int y) const
    {
        return x >= left && x < right && y >= top && y < bottom;
    }
};
struct FX_SMALL_RECT {

    FX_SHORT	Left;

    FX_SHORT	Top;

    FX_SHORT	Right;

    FX_SHORT	Bottom;
};
class CFX_FloatRect : public CFX_Object
{
public:

    CFX_FloatRect()
    {
        left = right = bottom = top = 0;
    }

    CFX_FloatRect(FX_FLOAT left1, FX_FLOAT bottom1, FX_FLOAT right1, FX_FLOAT top1)
    {
        left = left1;
        bottom = bottom1;
        right = right1;
        top = top1;
    }

    CFX_FloatRect(const FX_FLOAT* pArray)
    {
        left = pArray[0];
        bottom = pArray[1];
        right = pArray[2];
        top = pArray[3];
    }

    CFX_FloatRect(const FX_RECT& rect);

    FX_BOOL				IsEmpty() const
    {
        return left >= right || bottom >= top;
    }

    void				Normalize();

    void				Reset()
    {
        left = right = bottom = top = 0;
    }

    FX_BOOL				Contains(const CFX_FloatRect& other_rect) const;

    FX_BOOL				Contains(FX_FLOAT x, FX_FLOAT y) const;

    void				Transform(const CFX_Matrix* pMatrix);

    void				Intersect(const CFX_FloatRect& other_rect);

    void				Union(const CFX_FloatRect& other_rect);

    FX_RECT				GetInnerRect() const;

    FX_RECT				GetOutterRect() const;

    FX_RECT				GetClosestRect() const;

    int					Substract4(CFX_FloatRect& substract_rect, CFX_FloatRect* pRects);

    void				InitRect(FX_FLOAT x, FX_FLOAT y)
    {
        left = right = x;
        bottom = top = y;
    }

    void				UpdateRect(FX_FLOAT x, FX_FLOAT y);

    FX_FLOAT			Width() const
    {
        return right - left;
    }

    FX_FLOAT			Height() const
    {
        return top - bottom;
    }

    void				Inflate(FX_FLOAT x, FX_FLOAT y)
    {
        Normalize();
        left -= x;
        right += x;
        bottom -= y;
        top += y;
    }

    void				Inflate(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top)
    {
        Normalize();
        this->left -= left;
        this->bottom -= bottom;
        this->right += right;
        this->top += top;
    }

    void				Inflate(const CFX_FloatRect &rt)
    {
        Inflate(rt.left, rt.bottom, rt.right, rt.top);
    }

    void				Deflate(FX_FLOAT x, FX_FLOAT y)
    {
        Normalize();
        left += x;
        right -= x;
        bottom += y;
        top -= y;
    }

    void				Deflate(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top)
    {
        Normalize();
        this->left += left;
        this->bottom += bottom;
        this->right -= right;
        this->top -= top;
    }

    void				Deflate(const CFX_FloatRect &rt)
    {
        Deflate(rt.left, rt.bottom, rt.right, rt.top);
    }

    void				Translate(FX_FLOAT e, FX_FLOAT f)
    {
        left += e;
        right += e;
        top += f;
        bottom += f;
    }

    static CFX_FloatRect	GetBBox(const CFX_FloatPoint* pPoints, int nPoints);

    FX_FLOAT			left;

    FX_FLOAT			right;

    FX_FLOAT			bottom;

    FX_FLOAT			top;
};
class CFX_Matrix : public CFX_Object
{
public:

    CFX_Matrix()
    {
        a = d = 1;
        b = c = e = f = 0;
    }

    CFX_Matrix(FX_FLOAT a1, FX_FLOAT b1, FX_FLOAT c1, FX_FLOAT d1, FX_FLOAT e1, FX_FLOAT f1)
    {
        a = a1;
        b = b1;
        c = c1;
        d = d1;
        e = e1;
        f = f1;
    }

    void			Set(FX_FLOAT a, FX_FLOAT b, FX_FLOAT c, FX_FLOAT d, FX_FLOAT e, FX_FLOAT f);
    void			Set(const FX_FLOAT n[6]);

    void			SetIdentity()
    {
        a = d = 1;
        b = c = e = f = 0;
    }

    void			SetReverse(const CFX_Matrix &m);

    void			Concat(FX_FLOAT a, FX_FLOAT b, FX_FLOAT c, FX_FLOAT d, FX_FLOAT e, FX_FLOAT f, FX_BOOL bPrepended = FALSE);

    void			Concat(const CFX_Matrix &m, FX_BOOL bPrepended = FALSE);

    void			ConcatInverse(const CFX_Matrix& m, FX_BOOL bPrepended = FALSE);
    void			Reset()
    {
        SetIdentity();
    }

    void			Copy(const CFX_Matrix& m)
    {
        *this = m;
    }

    FX_BOOL			IsIdentity() const
    {
        return a == 1 && b == 0 && c == 0 && d == 1 && e == 0 && f == 0;
    }
    FX_BOOL			IsInvertible() const;

    FX_BOOL			Is90Rotated() const;

    FX_BOOL			IsScaled() const;

    void			Translate(FX_FLOAT x, FX_FLOAT y, FX_BOOL bPrepended = FALSE);

    void			TranslateI(FX_INT32 x, FX_INT32 y, FX_BOOL bPrepended = FALSE)
    {
        Translate((FX_FLOAT)x, (FX_FLOAT)y, bPrepended);
    }

    void			Scale(FX_FLOAT sx, FX_FLOAT sy, FX_BOOL bPrepended = FALSE);

    void			Rotate(FX_FLOAT fRadian, FX_BOOL bPrepended = FALSE);

    void			RotateAt(FX_FLOAT fRadian, FX_FLOAT x, FX_FLOAT y, FX_BOOL bPrepended = FALSE);

    void			Shear(FX_FLOAT fAlphaRadian, FX_FLOAT fBetaRadian, FX_BOOL bPrepended = FALSE);

    void			MatchRect(const CFX_FloatRect &dest, const CFX_FloatRect &src);

    FX_FLOAT		GetXUnit() const;

    FX_FLOAT		GetYUnit() const;
    void			GetUnitRect(CFX_RectF &rect) const;

    CFX_FloatRect	GetUnitRect() const;

    FX_FLOAT		GetUnitArea() const;
    FX_FLOAT		TransformXDistance(FX_FLOAT dx) const;
    FX_INT32		TransformXDistance(FX_INT32 dx) const;
    FX_FLOAT		TransformYDistance(FX_FLOAT dy) const;
    FX_INT32		TransformYDistance(FX_INT32 dy) const;
    FX_FLOAT		TransformDistance(FX_FLOAT dx, FX_FLOAT dy) const;
    FX_INT32		TransformDistance(FX_INT32 dx, FX_INT32 dy) const;

    FX_FLOAT		TransformDistance(FX_FLOAT distance) const;
    void			TransformPoint(FX_FLOAT &x, FX_FLOAT &y) const;
    void			TransformPoint(FX_INT32 &x, FX_INT32 &y) const;
    void			TransformPoints(CFX_PointF *points, FX_INT32 iCount) const;
    void			TransformPoints(CFX_Point *points, FX_INT32 iCount) const;

    void			Transform(FX_FLOAT& x, FX_FLOAT& y) const
    {
        TransformPoint(x, y);
    }

    void			Transform(FX_FLOAT x, FX_FLOAT y, FX_FLOAT& x1, FX_FLOAT& y1) const
    {
        x1 = x, y1 = y;
        TransformPoint(x1, y1);
    }
    void			TransformVector(CFX_VectorF &v) const;
    void			TransformVector(CFX_Vector &v) const;
    void			TransformRect(CFX_RectF &rect) const;
    void			TransformRect(CFX_Rect &rect) const;

    void			TransformRect(FX_FLOAT& left, FX_FLOAT& right, FX_FLOAT& top, FX_FLOAT& bottom) const;

    void			TransformRect(CFX_FloatRect& rect) const
    {
        TransformRect(rect.left, rect.right, rect.top, rect.bottom);
    }

    FX_FLOAT		GetA() const
    {
        return a;
    }

    FX_FLOAT		GetB() const
    {
        return b;
    }

    FX_FLOAT		GetC() const
    {
        return c;
    }

    FX_FLOAT		GetD() const
    {
        return d;
    }

    FX_FLOAT		GetE() const
    {
        return e;
    }

    FX_FLOAT		GetF() const
    {
        return f;
    }
public:
    FX_FLOAT a;
    FX_FLOAT b;
    FX_FLOAT c;
    FX_FLOAT d;
    FX_FLOAT e;
    FX_FLOAT f;
};
#define CFX_AffineMatrix	CFX_Matrix
#endif