ReactOS  0.4.15-dev-3439-g2693a26
mouse.cpp
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1 /*
2  * PROJECT: PAINT for ReactOS
3  * LICENSE: LGPL
4  * FILE: base/applications/mspaint/mouse.cpp
5  * PURPOSE: Things which should not be in the mouse event handler itself
6  * PROGRAMMERS: Benedikt Freisen
7  */
8 
9 /* INCLUDES *********************************************************/
10 
11 #include "precomp.h"
12 
13 /* FUNCTIONS ********************************************************/
14 
15 void
16 placeSelWin()
17 {
18  selectionWindow.MoveWindow(selectionModel.GetDestRectLeft() * toolsModel.GetZoom() / 1000, selectionModel.GetDestRectTop() * toolsModel.GetZoom() / 1000,
19  selectionModel.GetDestRectWidth() * toolsModel.GetZoom() / 1000 + 6, selectionModel.GetDestRectHeight() * toolsModel.GetZoom() / 1000 + 6, TRUE);
20  selectionWindow.BringWindowToTop();
21  imageArea.InvalidateRect(NULL, FALSE);
22 }
23 
24 void
25 regularize(LONG x0, LONG y0, LONG& x1, LONG& y1)
26 {
27  if (abs(x1 - x0) >= abs(y1 - y0))
28  y1 = y0 + (y1 > y0 ? abs(x1 - x0) : -abs(x1 - x0));
29  else
30  x1 = x0 + (x1 > x0 ? abs(y1 - y0) : -abs(y1 - y0));
31 }
32 
33 void
34 roundTo8Directions(LONG x0, LONG y0, LONG& x1, LONG& y1)
35 {
36  if (abs(x1 - x0) >= abs(y1 - y0))
37  {
38  if (abs(y1 - y0) * 5 < abs(x1 - x0) * 2)
39  y1 = y0;
40  else
41  y1 = y0 + (y1 > y0 ? abs(x1 - x0) : -abs(x1 - x0));
42  }
43  else
44  {
45  if (abs(x1 - x0) * 5 < abs(y1 - y0) * 2)
46  x1 = x0;
47  else
48  x1 = x0 + (x1 > x0 ? abs(y1 - y0) : -abs(y1 - y0));
49  }
50 }
51 
52 POINT pointStack[256];
53 short pointSP;
54 
55 void
56 startPaintingL(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
57 {
58  start.x = x;
59  start.y = y;
60  last.x = x;
61  last.y = y;
62  switch (toolsModel.GetActiveTool())
63  {
64  case TOOL_FREESEL:
65  selectionWindow.ShowWindow(SW_HIDE);
66  selectionModel.ResetPtStack();
67  selectionModel.PushToPtStack(x, y);
68  break;
69  case TOOL_LINE:
70  case TOOL_RECT:
71  case TOOL_ELLIPSE:
72  case TOOL_RRECT:
73  imageModel.CopyPrevious();
74  break;
75  case TOOL_RECTSEL:
76  case TOOL_TEXT:
77  imageModel.CopyPrevious();
78  selectionWindow.ShowWindow(SW_HIDE);
79  selectionModel.SetSrcRectSizeToZero();
80  break;
81  case TOOL_RUBBER:
82  imageModel.CopyPrevious();
83  Erase(hdc, x, y, x, y, bg, toolsModel.GetRubberRadius());
84  break;
85  case TOOL_FILL:
86  imageModel.CopyPrevious();
87  Fill(hdc, x, y, fg);
88  break;
89  case TOOL_PEN:
90  imageModel.CopyPrevious();
91  SetPixel(hdc, x, y, fg);
92  break;
93  case TOOL_BRUSH:
94  imageModel.CopyPrevious();
95  Brush(hdc, x, y, x, y, fg, toolsModel.GetBrushStyle());
96  break;
97  case TOOL_AIRBRUSH:
98  imageModel.CopyPrevious();
99  Airbrush(hdc, x, y, fg, toolsModel.GetAirBrushWidth());
100  break;
101  case TOOL_BEZIER:
102  pointStack[pointSP].x = x;
103  pointStack[pointSP].y = y;
104  if (pointSP == 0)
105  {
106  imageModel.CopyPrevious();
107  pointSP++;
108  }
109  break;
110  case TOOL_SHAPE:
111  pointStack[pointSP].x = x;
112  pointStack[pointSP].y = y;
113  if (pointSP + 1 >= 2)
114  Poly(hdc, pointStack, pointSP + 1, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
115  if (pointSP == 0)
116  {
117  imageModel.CopyPrevious();
118  pointSP++;
119  }
120  break;
121  }
122 }
123 
124 void
125 whilePaintingL(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
126 {
127  switch (toolsModel.GetActiveTool())
128  {
129  case TOOL_FREESEL:
130  if (selectionModel.PtStackSize() == 1)
131  imageModel.CopyPrevious();
132  selectionModel.PushToPtStack(max(0, min(x, imageModel.GetWidth())), max(0, min(y, imageModel.GetHeight())));
133  imageModel.ResetToPrevious();
134  selectionModel.DrawFramePoly(hdc);
135  break;
136  case TOOL_RECTSEL:
137  case TOOL_TEXT:
138  {
139  POINT temp;
140  imageModel.ResetToPrevious();
141  temp.x = max(0, min(x, imageModel.GetWidth()));
142  temp.y = max(0, min(y, imageModel.GetHeight()));
143  selectionModel.SetSrcAndDestRectFromPoints(start, temp);
144  RectSel(hdc, start.x, start.y, temp.x, temp.y);
145  break;
146  }
147  case TOOL_RUBBER:
148  Erase(hdc, last.x, last.y, x, y, bg, toolsModel.GetRubberRadius());
149  break;
150  case TOOL_PEN:
151  Line(hdc, last.x, last.y, x, y, fg, 1);
152  break;
153  case TOOL_BRUSH:
154  Brush(hdc, last.x, last.y, x, y, fg, toolsModel.GetBrushStyle());
155  break;
156  case TOOL_AIRBRUSH:
157  Airbrush(hdc, x, y, fg, toolsModel.GetAirBrushWidth());
158  break;
159  case TOOL_LINE:
160  imageModel.ResetToPrevious();
161  if (GetAsyncKeyState(VK_SHIFT) < 0)
162  roundTo8Directions(start.x, start.y, x, y);
163  Line(hdc, start.x, start.y, x, y, fg, toolsModel.GetLineWidth());
164  break;
165  case TOOL_BEZIER:
166  imageModel.ResetToPrevious();
167  pointStack[pointSP].x = x;
168  pointStack[pointSP].y = y;
169  switch (pointSP)
170  {
171  case 1:
172  Line(hdc, pointStack[0].x, pointStack[0].y, pointStack[1].x, pointStack[1].y, fg,
173  toolsModel.GetLineWidth());
174  break;
175  case 2:
176  Bezier(hdc, pointStack[0], pointStack[2], pointStack[2], pointStack[1], fg, toolsModel.GetLineWidth());
177  break;
178  case 3:
179  Bezier(hdc, pointStack[0], pointStack[2], pointStack[3], pointStack[1], fg, toolsModel.GetLineWidth());
180  break;
181  }
182  break;
183  case TOOL_RECT:
184  imageModel.ResetToPrevious();
185  if (GetAsyncKeyState(VK_SHIFT) < 0)
186  regularize(start.x, start.y, x, y);
187  Rect(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
188  break;
189  case TOOL_SHAPE:
190  imageModel.ResetToPrevious();
191  pointStack[pointSP].x = x;
192  pointStack[pointSP].y = y;
193  if ((pointSP > 0) && (GetAsyncKeyState(VK_SHIFT) < 0))
194  roundTo8Directions(pointStack[pointSP - 1].x, pointStack[pointSP - 1].y,
195  pointStack[pointSP].x, pointStack[pointSP].y);
196  if (pointSP + 1 >= 2)
197  Poly(hdc, pointStack, pointSP + 1, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
198  break;
199  case TOOL_ELLIPSE:
200  imageModel.ResetToPrevious();
201  if (GetAsyncKeyState(VK_SHIFT) < 0)
202  regularize(start.x, start.y, x, y);
203  Ellp(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
204  break;
205  case TOOL_RRECT:
206  imageModel.ResetToPrevious();
207  if (GetAsyncKeyState(VK_SHIFT) < 0)
208  regularize(start.x, start.y, x, y);
209  RRect(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
210  break;
211  }
212 
213  last.x = x;
214  last.y = y;
215 }
216 
217 void
218 endPaintingL(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
219 {
220  switch (toolsModel.GetActiveTool())
221  {
222  case TOOL_FREESEL:
223  {
224  selectionModel.CalculateBoundingBoxAndContents(hdc);
225  if (selectionModel.PtStackSize() > 1)
226  {
227  selectionModel.DrawBackgroundPoly(hdc, bg);
228  imageModel.CopyPrevious();
229 
230  selectionModel.DrawSelection(hdc);
231 
232  placeSelWin();
233  selectionWindow.ShowWindow(SW_SHOW);
234  ForceRefreshSelectionContents();
235  }
236  selectionModel.ResetPtStack();
237  break;
238  }
239  case TOOL_RECTSEL:
240  imageModel.ResetToPrevious();
241  if (selectionModel.IsSrcRectSizeNonzero())
242  {
243  selectionModel.CalculateContents(hdc);
244  selectionModel.DrawBackgroundRect(hdc, bg);
245  imageModel.CopyPrevious();
246 
247  selectionModel.DrawSelection(hdc);
248 
249  placeSelWin();
250  selectionWindow.ShowWindow(SW_SHOW);
251  ForceRefreshSelectionContents();
252  }
253  break;
254  case TOOL_TEXT:
255  imageModel.ResetToPrevious();
256  if (selectionModel.IsSrcRectSizeNonzero())
257  {
258  imageModel.CopyPrevious();
259 
260  placeSelWin();
261  selectionWindow.ShowWindow(SW_SHOW);
262  ForceRefreshSelectionContents();
263  }
264  break;
265  case TOOL_RUBBER:
266  Erase(hdc, last.x, last.y, x, y, bg, toolsModel.GetRubberRadius());
267  break;
268  case TOOL_PEN:
269  Line(hdc, last.x, last.y, x, y, fg, 1);
270  SetPixel(hdc, x, y, fg);
271  break;
272  case TOOL_LINE:
273  imageModel.ResetToPrevious();
274  if (GetAsyncKeyState(VK_SHIFT) < 0)
275  roundTo8Directions(start.x, start.y, x, y);
276  Line(hdc, start.x, start.y, x, y, fg, toolsModel.GetLineWidth());
277  break;
278  case TOOL_BEZIER:
279  pointSP++;
280  if (pointSP == 4)
281  pointSP = 0;
282  break;
283  case TOOL_RECT:
284  imageModel.ResetToPrevious();
285  if (GetAsyncKeyState(VK_SHIFT) < 0)
286  regularize(start.x, start.y, x, y);
287  Rect(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
288  break;
289  case TOOL_SHAPE:
290  imageModel.ResetToPrevious();
291  pointStack[pointSP].x = x;
292  pointStack[pointSP].y = y;
293  if ((pointSP > 0) && (GetAsyncKeyState(VK_SHIFT) < 0))
294  roundTo8Directions(pointStack[pointSP - 1].x, pointStack[pointSP - 1].y,
295  pointStack[pointSP].x, pointStack[pointSP].y);
296  pointSP++;
297  if (pointSP >= 2)
298  {
299  if ((pointStack[0].x - x) * (pointStack[0].x - x) +
300  (pointStack[0].y - y) * (pointStack[0].y - y) <= toolsModel.GetLineWidth() * toolsModel.GetLineWidth() + 1)
301  {
302  Poly(hdc, pointStack, pointSP, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), TRUE, FALSE);
303  pointSP = 0;
304  }
305  else
306  {
307  Poly(hdc, pointStack, pointSP, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
308  }
309  }
310  if (pointSP == 255)
311  pointSP--;
312  break;
313  case TOOL_ELLIPSE:
314  imageModel.ResetToPrevious();
315  if (GetAsyncKeyState(VK_SHIFT) < 0)
316  regularize(start.x, start.y, x, y);
317  Ellp(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
318  break;
319  case TOOL_RRECT:
320  imageModel.ResetToPrevious();
321  if (GetAsyncKeyState(VK_SHIFT) < 0)
322  regularize(start.x, start.y, x, y);
323  RRect(hdc, start.x, start.y, x, y, fg, bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
324  break;
325  }
326 }
327 
328 void
329 startPaintingR(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
330 {
331  start.x = x;
332  start.y = y;
333  last.x = x;
334  last.y = y;
335  switch (toolsModel.GetActiveTool())
336  {
337  case TOOL_FREESEL:
338  case TOOL_TEXT:
339  case TOOL_LINE:
340  case TOOL_RECT:
341  case TOOL_ELLIPSE:
342  case TOOL_RRECT:
343  imageModel.CopyPrevious();
344  break;
345  case TOOL_RUBBER:
346  imageModel.CopyPrevious();
347  Replace(hdc, x, y, x, y, fg, bg, toolsModel.GetRubberRadius());
348  break;
349  case TOOL_FILL:
350  imageModel.CopyPrevious();
351  Fill(hdc, x, y, bg);
352  break;
353  case TOOL_PEN:
354  imageModel.CopyPrevious();
355  SetPixel(hdc, x, y, bg);
356  break;
357  case TOOL_BRUSH:
358  imageModel.CopyPrevious();
359  Brush(hdc, x, y, x, y, bg, toolsModel.GetBrushStyle());
360  break;
361  case TOOL_AIRBRUSH:
362  imageModel.CopyPrevious();
363  Airbrush(hdc, x, y, bg, toolsModel.GetAirBrushWidth());
364  break;
365  case TOOL_BEZIER:
366  pointStack[pointSP].x = x;
367  pointStack[pointSP].y = y;
368  if (pointSP == 0)
369  {
370  imageModel.CopyPrevious();
371  pointSP++;
372  }
373  break;
374  case TOOL_SHAPE:
375  pointStack[pointSP].x = x;
376  pointStack[pointSP].y = y;
377  if (pointSP + 1 >= 2)
378  Poly(hdc, pointStack, pointSP + 1, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
379  if (pointSP == 0)
380  {
381  imageModel.CopyPrevious();
382  pointSP++;
383  }
384  break;
385  }
386 }
387 
388 void
389 whilePaintingR(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
390 {
391  switch (toolsModel.GetActiveTool())
392  {
393  case TOOL_RUBBER:
394  Replace(hdc, last.x, last.y, x, y, fg, bg, toolsModel.GetRubberRadius());
395  break;
396  case TOOL_PEN:
397  Line(hdc, last.x, last.y, x, y, bg, 1);
398  break;
399  case TOOL_BRUSH:
400  Brush(hdc, last.x, last.y, x, y, bg, toolsModel.GetBrushStyle());
401  break;
402  case TOOL_AIRBRUSH:
403  Airbrush(hdc, x, y, bg, toolsModel.GetAirBrushWidth());
404  break;
405  case TOOL_LINE:
406  imageModel.ResetToPrevious();
407  if (GetAsyncKeyState(VK_SHIFT) < 0)
408  roundTo8Directions(start.x, start.y, x, y);
409  Line(hdc, start.x, start.y, x, y, bg, toolsModel.GetLineWidth());
410  break;
411  case TOOL_BEZIER:
412  imageModel.ResetToPrevious();
413  pointStack[pointSP].x = x;
414  pointStack[pointSP].y = y;
415  switch (pointSP)
416  {
417  case 1:
418  Line(hdc, pointStack[0].x, pointStack[0].y, pointStack[1].x, pointStack[1].y, bg,
419  toolsModel.GetLineWidth());
420  break;
421  case 2:
422  Bezier(hdc, pointStack[0], pointStack[2], pointStack[2], pointStack[1], bg, toolsModel.GetLineWidth());
423  break;
424  case 3:
425  Bezier(hdc, pointStack[0], pointStack[2], pointStack[3], pointStack[1], bg, toolsModel.GetLineWidth());
426  break;
427  }
428  break;
429  case TOOL_RECT:
430  imageModel.ResetToPrevious();
431  if (GetAsyncKeyState(VK_SHIFT) < 0)
432  regularize(start.x, start.y, x, y);
433  Rect(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
434  break;
435  case TOOL_SHAPE:
436  imageModel.ResetToPrevious();
437  pointStack[pointSP].x = x;
438  pointStack[pointSP].y = y;
439  if ((pointSP > 0) && (GetAsyncKeyState(VK_SHIFT) < 0))
440  roundTo8Directions(pointStack[pointSP - 1].x, pointStack[pointSP - 1].y,
441  pointStack[pointSP].x, pointStack[pointSP].y);
442  if (pointSP + 1 >= 2)
443  Poly(hdc, pointStack, pointSP + 1, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
444  break;
445  case TOOL_ELLIPSE:
446  imageModel.ResetToPrevious();
447  if (GetAsyncKeyState(VK_SHIFT) < 0)
448  regularize(start.x, start.y, x, y);
449  Ellp(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
450  break;
451  case TOOL_RRECT:
452  imageModel.ResetToPrevious();
453  if (GetAsyncKeyState(VK_SHIFT) < 0)
454  regularize(start.x, start.y, x, y);
455  RRect(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
456  break;
457  }
458 
459  last.x = x;
460  last.y = y;
461 }
462 
463 void
464 endPaintingR(HDC hdc, LONG x, LONG y, COLORREF fg, COLORREF bg)
465 {
466  switch (toolsModel.GetActiveTool())
467  {
468  case TOOL_RUBBER:
469  Replace(hdc, last.x, last.y, x, y, fg, bg, toolsModel.GetRubberRadius());
470  break;
471  case TOOL_PEN:
472  Line(hdc, last.x, last.y, x, y, bg, 1);
473  SetPixel(hdc, x, y, bg);
474  break;
475  case TOOL_LINE:
476  imageModel.ResetToPrevious();
477  if (GetAsyncKeyState(VK_SHIFT) < 0)
478  roundTo8Directions(start.x, start.y, x, y);
479  Line(hdc, start.x, start.y, x, y, bg, toolsModel.GetLineWidth());
480  break;
481  case TOOL_BEZIER:
482  pointSP++;
483  if (pointSP == 4)
484  pointSP = 0;
485  break;
486  case TOOL_RECT:
487  imageModel.ResetToPrevious();
488  if (GetAsyncKeyState(VK_SHIFT) < 0)
489  regularize(start.x, start.y, x, y);
490  Rect(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
491  break;
492  case TOOL_SHAPE:
493  imageModel.ResetToPrevious();
494  pointStack[pointSP].x = x;
495  pointStack[pointSP].y = y;
496  if ((pointSP > 0) && (GetAsyncKeyState(VK_SHIFT) < 0))
497  roundTo8Directions(pointStack[pointSP - 1].x, pointStack[pointSP - 1].y,
498  pointStack[pointSP].x, pointStack[pointSP].y);
499  pointSP++;
500  if (pointSP >= 2)
501  {
502  if ((pointStack[0].x - x) * (pointStack[0].x - x) +
503  (pointStack[0].y - y) * (pointStack[0].y - y) <= toolsModel.GetLineWidth() * toolsModel.GetLineWidth() + 1)
504  {
505  Poly(hdc, pointStack, pointSP, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), TRUE, FALSE);
506  pointSP = 0;
507  }
508  else
509  {
510  Poly(hdc, pointStack, pointSP, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), FALSE, FALSE);
511  }
512  }
513  if (pointSP == 255)
514  pointSP--;
515  break;
516  case TOOL_ELLIPSE:
517  imageModel.ResetToPrevious();
518  if (GetAsyncKeyState(VK_SHIFT) < 0)
519  regularize(start.x, start.y, x, y);
520  Ellp(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
521  break;
522  case TOOL_RRECT:
523  imageModel.ResetToPrevious();
524  if (GetAsyncKeyState(VK_SHIFT) < 0)
525  regularize(start.x, start.y, x, y);
526  RRect(hdc, start.x, start.y, x, y, bg, fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
527  break;
528  }
529 }
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Definition: toolsmodel.cpp:27
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Definition: mouse.cpp:34
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Definition: toolsmodel.cpp:71
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Definition: drawing.cpp:160
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Definition: definitions.h:150
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Definition: mouse.cpp:16
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Definition: main.cpp:32
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Definition: definitions.h:135
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Definition: definitions.h:149
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Definition: types.h:112
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Definition: mouse.cpp:52
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