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1/////////////////////////////////////////////////////////////////////////////
2// Name: _dc.i
3// Purpose: SWIG interface defs for wxDC and releated classes
4//
5// Author: Robin Dunn
6//
7// Created: 7-July-1997
8// RCS-ID: $Id$
9// Copyright: (c) 2003 by Total Control Software
10// Licence: wxWindows license
11/////////////////////////////////////////////////////////////////////////////
12
13// Not a %module
14
15
16
17//---------------------------------------------------------------------------
18
19%{
20#include "wx/wxPython/pydrawxxx.h"
21%}
22
23// TODO: 1. wrappers for wxDrawObject and wxDC::DrawObject
24
25
26//---------------------------------------------------------------------------
27
28%typemap(in) (int points, wxPoint* points_array ) {
29 $2 = wxPoint_LIST_helper($input, &$1);
30 if ($2 == NULL) SWIG_fail;
31}
32%typemap(freearg) (int points, wxPoint* points_array ) {
33 if ($2) delete [] $2;
34}
35
36
37//---------------------------------------------------------------------------
38%newgroup;
39
40
41DocStr(wxDC,
42"A wx.DC is a device context onto which graphics and text can be
43drawn. It is intended to represent a number of output devices in a
44generic way, so a window can have a device context associated with it,
45and a printer also has a device context. In this way, the same piece
46of code may write to a number of different devices, if the device
47context is used as a parameter.
48
49Derived types of wxDC have documentation for specific features only,
50so refer to this section for most device context information.
51
52The wx.DC class is abstract and can not be instantiated, you must use
53one of the derived classes instead. Which one will depend on the
54situation in which it is used.", "");
55
56class wxDC : public wxObject {
57public:
58// wxDC(); **** abstract base class, can't instantiate.
59 ~wxDC();
60
61
62 %pythoncode {
63 %# These have been deprecated in wxWidgets. Since they never
64 %# really did anything to begin with, just make them be NOPs.
65 def BeginDrawing(self): pass
66 def EndDrawing(self): pass
67 }
68
69
70
71// TODO virtual void DrawObject(wxDrawObject* drawobject);
72
73
74 DocStr(
75 FloodFill,
76 "Flood fills the device context starting from the given point, using
77the current brush colour, and using a style:
78
79 - **wxFLOOD_SURFACE**: the flooding occurs until a colour other than
80 the given colour is encountered.
81
82 - **wxFLOOD_BORDER**: the area to be flooded is bounded by the given
83 colour.
84
85Returns False if the operation failed.
86
87Note: The present implementation for non-Windows platforms may fail to
88find colour borders if the pixels do not match the colour
89exactly. However the function will still return true.", "");
90 bool FloodFill(wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE);
91 %Rename(FloodFillPoint, bool, FloodFill(const wxPoint& pt, const wxColour& col, int style = wxFLOOD_SURFACE));
92
93 // fill the area specified by rect with a radial gradient, starting from
94 // initialColour in the centre of the cercle and fading to destColour.
95
96 DocDeclStr(
97 void , GradientFillConcentric(const wxRect& rect,
98 const wxColour& initialColour,
99 const wxColour& destColour,
100 const wxPoint& circleCenter),
101 "Fill the area specified by rect with a radial gradient, starting from
102initialColour in the center of the circle and fading to destColour on
103the outside of the circle. The circleCenter argument is the relative
104coordinants of the center of the circle in the specified rect.
105
106Note: Currently this function is very slow, don't use it for real-time
107drawing.", "");
108
109
110 DocDeclStr(
111 void , GradientFillLinear(const wxRect& rect,
112 const wxColour& initialColour,
113 const wxColour& destColour,
114 wxDirection nDirection = wxEAST),
115 "Fill the area specified by rect with a linear gradient, starting from
116initialColour and eventually fading to destColour. The nDirection
117parameter specifies the direction of the colour change, default is to
118use initialColour on the left part of the rectangle and destColour on
119the right side.", "");
120
121
122
123 DocStr(
124 GetPixel,
125 "Gets the colour at the specified location on the DC.","");
126 %extend {
127 wxColour GetPixel(wxCoord x, wxCoord y) {
128 wxColour col;
129 self->GetPixel(x, y, &col);
130 return col;
131 }
132 wxColour GetPixelPoint(const wxPoint& pt) {
133 wxColour col;
134 self->GetPixel(pt, &col);
135 return col;
136 }
137 }
138
139
140 DocStr(
141 DrawLine,
142 "Draws a line from the first point to the second. The current pen is
143used for drawing the line. Note that the second point is *not* part of
144the line and is not drawn by this function (this is consistent with
145the behaviour of many other toolkits).", "");
146 void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
147 %Rename(DrawLinePoint, void, DrawLine(const wxPoint& pt1, const wxPoint& pt2));
148
149
150 DocStr(
151 CrossHair,
152 "Displays a cross hair using the current pen. This is a vertical and
153horizontal line the height and width of the window, centred on the
154given point.", "");
155 void CrossHair(wxCoord x, wxCoord y);
156 %Rename(CrossHairPoint, void, CrossHair(const wxPoint& pt));
157
158
159 DocStr(
160 DrawArc,
161 "Draws an arc of a circle, centred on the *center* point (xc, yc), from
162the first point to the second. The current pen is used for the outline
163and the current brush for filling the shape.
164
165The arc is drawn in an anticlockwise direction from the start point to
166the end point.", "");
167 void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc);
168 %Rename(DrawArcPoint, void, DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& center));
169
170
171 DocStr(
172 DrawCheckMark,
173 "Draws a check mark inside the given rectangle.", "");
174 void DrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
175 %Rename(DrawCheckMarkRect, void, DrawCheckMark(const wxRect& rect));
176
177 DocStr(
178 DrawEllipticArc,
179 "Draws an arc of an ellipse, with the given rectangle defining the
180bounds of the ellipse. The current pen is used for drawing the arc and
181the current brush is used for drawing the pie.
182
183The *start* and *end* parameters specify the start and end of the arc
184relative to the three-o'clock position from the center of the
185rectangle. Angles are specified in degrees (360 is a complete
186circle). Positive values mean counter-clockwise motion. If start is
187equal to end, a complete ellipse will be drawn.", "");
188 void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double start, double end);
189 %Rename(DrawEllipticArcPointSize, void, DrawEllipticArc(const wxPoint& pt, const wxSize& sz, double start, double end));
190
191
192 DocStr(
193 DrawPoint,
194 "Draws a point using the current pen.", "");
195 void DrawPoint(wxCoord x, wxCoord y);
196 %Rename(DrawPointPoint, void, DrawPoint(const wxPoint& pt));
197
198
199 DocStr(
200 DrawRectangle,
201 "Draws a rectangle with the given top left corner, and with the given
202size. The current pen is used for the outline and the current brush
203for filling the shape.", "");
204 void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
205 %Rename(DrawRectangleRect,void, DrawRectangle(const wxRect& rect));
206 %Rename(DrawRectanglePointSize, void, DrawRectangle(const wxPoint& pt, const wxSize& sz));
207
208
209 DocStr(
210 DrawRoundedRectangle,
211 "Draws a rectangle with the given top left corner, and with the given
212size. The corners are quarter-circles using the given radius. The
213current pen is used for the outline and the current brush for filling
214the shape.
215
216If radius is positive, the value is assumed to be the radius of the
217rounded corner. If radius is negative, the absolute value is assumed
218to be the proportion of the smallest dimension of the rectangle. This
219means that the corner can be a sensible size relative to the size of
220the rectangle, and also avoids the strange effects X produces when the
221corners are too big for the rectangle.", "");
222 void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius);
223 %Rename(DrawRoundedRectangleRect, void, DrawRoundedRectangle(const wxRect& r, double radius));
224 %Rename(DrawRoundedRectanglePointSize, void, DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius));
225
226
227 DocStr(
228 DrawCircle,
229 "Draws a circle with the given center point and radius. The current
230pen is used for the outline and the current brush for filling the
231shape.", "
232
233:see: `DrawEllipse`");
234 void DrawCircle(wxCoord x, wxCoord y, wxCoord radius);
235 %Rename(DrawCirclePoint, void, DrawCircle(const wxPoint& pt, wxCoord radius));
236
237
238 DocStr(
239 DrawEllipse,
240 "Draws an ellipse contained in the specified rectangle. The current pen
241is used for the outline and the current brush for filling the shape.", "
242
243:see: `DrawCircle`");
244 void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
245 %Rename(DrawEllipseRect, void, DrawEllipse(const wxRect& rect));
246 %Rename(DrawEllipsePointSize, void, DrawEllipse(const wxPoint& pt, const wxSize& sz));
247
248
249 DocStr(
250 DrawIcon,
251 "Draw an icon on the display (does nothing if the device context is
252PostScript). This can be the simplest way of drawing bitmaps on a
253window.", "");
254 void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
255 %Rename(DrawIconPoint, void, DrawIcon(const wxIcon& icon, const wxPoint& pt));
256
257
258 DocStr(
259 DrawBitmap,
260 "Draw a bitmap on the device context at the specified point. If
261*transparent* is true and the bitmap has a transparency mask, (or
262alpha channel on the platforms that support it) then the bitmap will
263be drawn transparently.", "
264
265When drawing a mono-bitmap, the current text foreground colour will be
266used to draw the foreground of the bitmap (all bits set to 1), and the
267current text background colour to draw the background (all bits set to
2680).
269
270:see: `SetTextForeground`, `SetTextBackground` and `wx.MemoryDC`");
271 void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask = false);
272 %Rename(DrawBitmapPoint, void, DrawBitmap(const wxBitmap &bmp, const wxPoint& pt, bool useMask = false));
273
274
275 DocStr(
276 DrawText,
277 "Draws a text string at the specified point, using the current text
278font, and the current text foreground and background colours.
279
280The coordinates refer to the top-left corner of the rectangle bounding
281the string. See `GetTextExtent` for how to get the dimensions of a
282text string, which can be used to position the text more precisely.
283
284**NOTE**: under wxGTK the current logical function is used by this
285function but it is ignored by wxMSW. Thus, you should avoid using
286logical functions with this function in portable programs.", "
287
288:see: `DrawRotatedText`");
289 void DrawText(const wxString& text, wxCoord x, wxCoord y);
290 %Rename(DrawTextPoint, void, DrawText(const wxString& text, const wxPoint& pt));
291
292
293 DocStr(
294 DrawRotatedText,
295 "Draws the text rotated by *angle* degrees, if supported by the platform.
296
297**NOTE**: Under Win9x only TrueType fonts can be drawn by this
298function. In particular, a font different from ``wx.NORMAL_FONT``
299should be used as the it is not normally a TrueType
300font. ``wx.SWISS_FONT`` is an example of a font which is.","
301
302:see: `DrawText`");
303 void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle);
304 %Rename(DrawRotatedTextPoint, void, DrawRotatedText(const wxString& text, const wxPoint& pt, double angle));
305
306
307 DocDeclStr(
308 bool , Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
309 wxDC *source, wxCoord xsrc, wxCoord ysrc,
310 int rop = wxCOPY, bool useMask = false,
311 wxCoord xsrcMask = -1, wxCoord ysrcMask = -1),
312 "Copy from a source DC to this DC. Parameters specify the destination
313coordinates, size of area to copy, source DC, source coordinates,
314logical function, whether to use a bitmap mask, and mask source
315position.", "
316
317 :param xdest: Destination device context x position.
318 :param ydest: Destination device context y position.
319 :param width: Width of source area to be copied.
320 :param height: Height of source area to be copied.
321 :param source: Source device context.
322 :param xsrc: Source device context x position.
323 :param ysrc: Source device context y position.
324 :param rop: Logical function to use: see `SetLogicalFunction`.
325 :param useMask: If true, Blit does a transparent blit using the mask
326 that is associated with the bitmap selected into the
327 source device context.
328 :param xsrcMask: Source x position on the mask. If both xsrcMask and
329 ysrcMask are -1, xsrc and ysrc will be assumed for
330 the mask source position.
331 :param ysrcMask: Source y position on the mask.
332");
333
334 DocDeclStrName(
335 bool , Blit(const wxPoint& destPt, const wxSize& sz,
336 wxDC *source, const wxPoint& srcPt,
337 int rop = wxCOPY, bool useMask = false,
338 const wxPoint& srcPtMask = wxDefaultPosition),
339 "Copy from a source DC to this DC. Parameters specify the destination
340coordinates, size of area to copy, source DC, source coordinates,
341logical function, whether to use a bitmap mask, and mask source
342position.", "
343
344 :param destPt: Destination device context position.
345 :param sz: Size of source area to be copied.
346 :param source: Source device context.
347 :param srcPt: Source device context position.
348 :param rop: Logical function to use: see `SetLogicalFunction`.
349 :param useMask: If true, Blit does a transparent blit using the mask
350 that is associated with the bitmap selected into the
351 source device context.
352 :param srcPtMask: Source position on the mask.
353",
354 BlitPointSize);
355
356
357 DocStr(
358 SetClippingRegion,
359 "Sets the clipping region for this device context to the intersection
360of the given region described by the parameters of this method and the
361previously set clipping region. You should call `DestroyClippingRegion`
362if you want to set the clipping region exactly to the region
363specified.
364
365The clipping region is an area to which drawing is
366restricted. Possible uses for the clipping region are for clipping
367text or for speeding up window redraws when only a known area of the
368screen is damaged.", "
369
370:see: `DestroyClippingRegion`, `wx.Region`");
371 void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
372 %Rename(SetClippingRegionPointSize, void, SetClippingRegion(const wxPoint& pt, const wxSize& sz));
373 %Rename(SetClippingRegionAsRegion, void, SetClippingRegion(const wxRegion& region));
374 %Rename(SetClippingRect, void, SetClippingRegion(const wxRect& rect));
375
376
377
378 DocDeclAStr(
379 void , DrawLines(int points, wxPoint* points_array,
380 wxCoord xoffset = 0, wxCoord yoffset = 0),
381 "DrawLines(self, List points, int xoffset=0, int yoffset=0)",
382 "Draws lines using a sequence of `wx.Point` objects, adding the
383optional offset coordinate. The current pen is used for drawing the
384lines.", "");
385
386
387 DocDeclAStr(
388 void , DrawPolygon(int points, wxPoint* points_array,
389 wxCoord xoffset = 0, wxCoord yoffset = 0,
390 int fillStyle = wxODDEVEN_RULE),
391 "DrawPolygon(self, List points, int xoffset=0, int yoffset=0,
392 int fillStyle=ODDEVEN_RULE)",
393 "Draws a filled polygon using a sequence of `wx.Point` objects, adding
394the optional offset coordinate. The last argument specifies the fill
395rule: ``wx.ODDEVEN_RULE`` (the default) or ``wx.WINDING_RULE``.
396
397The current pen is used for drawing the outline, and the current brush
398for filling the shape. Using a transparent brush suppresses
399filling. Note that wxWidgets automatically closes the first and last
400points.", "");
401
402
403 // TODO: Figure out a good typemap for this...
404 // Convert the first 3 args from a sequence of sequences?
405// void DrawPolyPolygon(int n, int count[], wxPoint points[],
406// wxCoord xoffset = 0, wxCoord yoffset = 0,
407// int fillStyle = wxODDEVEN_RULE);
408
409
410 DocDeclStr(
411 void , DrawLabel(const wxString& text, const wxRect& rect,
412 int alignment = wxALIGN_LEFT | wxALIGN_TOP,
413 int indexAccel = -1),
414 "Draw *text* within the specified rectangle, abiding by the alignment
415flags. Will additionally emphasize the character at *indexAccel* if
416it is not -1.", "
417
418:see: `DrawImageLabel`");
419
420
421 %extend {
422 DocStr(DrawImageLabel,
423 "Draw *text* and an image (which may be ``wx.NullBitmap`` to skip
424drawing it) within the specified rectangle, abiding by the alignment
425flags. Will additionally emphasize the character at *indexAccel* if
426it is not -1. Returns the bounding rectangle.", "");
427 wxRect DrawImageLabel(const wxString& text,
428 const wxBitmap& image,
429 const wxRect& rect,
430 int alignment = wxALIGN_LEFT | wxALIGN_TOP,
431 int indexAccel = -1) {
432 wxRect rv;
433 self->DrawLabel(text, image, rect, alignment, indexAccel, &rv);
434 return rv;
435 }
436 }
437
438
439
440 DocDeclAStr(
441 void , DrawSpline(int points, wxPoint* points_array),
442 "DrawSpline(self, List points)",
443 "Draws a spline between all given control points, (a list of `wx.Point`
444objects) using the current pen. The spline is drawn using a series of
445lines, using an algorithm taken from the X drawing program 'XFIG'.", "");
446
447
448
449
450 // global DC operations
451 // --------------------
452
453 DocDeclStr(
454 virtual void , Clear(),
455 "Clears the device context using the current background brush.", "");
456
457
458 DocDeclStr(
459 virtual bool , StartDoc(const wxString& message),
460 "Starts a document (only relevant when outputting to a
461printer). *Message* is a message to show whilst printing.", "");
462
463 DocDeclStr(
464 virtual void , EndDoc(),
465 "Ends a document (only relevant when outputting to a printer).", "");
466
467
468 DocDeclStr(
469 virtual void , StartPage(),
470 "Starts a document page (only relevant when outputting to a printer).", "");
471
472 DocDeclStr(
473 virtual void , EndPage(),
474 "Ends a document page (only relevant when outputting to a printer).", "");
475
476
477
478 // set objects to use for drawing
479 // ------------------------------
480
481 DocDeclStr(
482 virtual void , SetFont(const wxFont& font),
483 "Sets the current font for the DC. It must be a valid font, in
484particular you should not pass ``wx.NullFont`` to this method.","
485
486:see: `wx.Font`");
487
488 DocDeclStr(
489 virtual void , SetPen(const wxPen& pen),
490 "Sets the current pen for the DC.
491
492If the argument is ``wx.NullPen``, the current pen is selected out of the
493device context, and the original pen restored.", "
494
495:see: `wx.Pen`");
496
497 DocDeclStr(
498 virtual void , SetBrush(const wxBrush& brush),
499 "Sets the current brush for the DC.
500
501If the argument is ``wx.NullBrush``, the current brush is selected out
502of the device context, and the original brush restored, allowing the
503current brush to be destroyed safely.","
504
505:see: `wx.Brush`");
506
507 DocDeclStr(
508 virtual void , SetBackground(const wxBrush& brush),
509 "Sets the current background brush for the DC.", "");
510
511 DocDeclStr(
512 virtual void , SetBackgroundMode(int mode),
513 "*mode* may be one of ``wx.SOLID`` and ``wx.TRANSPARENT``. This setting
514determines whether text will be drawn with a background colour or
515not.", "");
516
517 DocDeclStr(
518 virtual void , SetPalette(const wxPalette& palette),
519 "If this is a window DC or memory DC, assigns the given palette to the
520window or bitmap associated with the DC. If the argument is
521``wx.NullPalette``, the current palette is selected out of the device
522context, and the original palette restored.", "
523
524:see: `wx.Palette`");
525
526
527
528 DocDeclStr(
529 virtual void , DestroyClippingRegion(),
530 "Destroys the current clipping region so that none of the DC is
531clipped.", "
532
533:see: `SetClippingRegion`");
534
535
536 DocDeclAStr(
537 void, GetClippingBox(wxCoord *OUTPUT, wxCoord *OUTPUT, wxCoord *OUTPUT, wxCoord *OUTPUT) const,
538 "GetClippingBox() -> (x, y, width, height)",
539 "Gets the rectangle surrounding the current clipping region.", "");
540
541 %extend {
542 DocStr(
543 GetClippingRect,
544 "Gets the rectangle surrounding the current clipping region.", "");
545 wxRect GetClippingRect() {
546 wxRect rect;
547 self->GetClippingBox(rect);
548 return rect;
549 }
550 }
551
552
553
554 // text extent
555 // -----------
556
557 DocDeclStr(
558 virtual wxCoord , GetCharHeight() const,
559 "Gets the character height of the currently set font.", "");
560
561 DocDeclStr(
562 virtual wxCoord , GetCharWidth() const,
563 "Gets the average character width of the currently set font.", "");
564
565
566
567 DocDeclAStr(
568 void, GetTextExtent(const wxString& string, wxCoord *OUTPUT, wxCoord *OUTPUT),
569 "GetTextExtent(wxString string) -> (width, height)",
570 "Get the width and height of the text using the current font. Only
571works for single line strings.", "");
572
573 DocDeclAStrName(
574 void, GetTextExtent(const wxString& string,
575 wxCoord *OUTPUT, wxCoord *OUTPUT, wxCoord *OUTPUT, wxCoord* OUTPUT,
576 wxFont* font = NULL),
577 "GetFullTextExtent(wxString string, Font font=None) ->\n (width, height, descent, externalLeading)",
578 "Get the width, height, decent and leading of the text using the
579current or specified font. Only works for single line strings.", "",
580 GetFullTextExtent);
581
582
583 // works for single as well as multi-line strings
584 DocDeclAStr(
585 void, GetMultiLineTextExtent(const wxString& text,
586 wxCoord *OUTPUT, wxCoord *OUTPUT, wxCoord *OUTPUT,
587 wxFont *font = NULL),
588 "GetMultiLineTextExtent(wxString string, Font font=None) ->\n (width, height, lineHeight)",
589 "Get the width, height, and line height of the text using the
590current or specified font. Works for single as well as multi-line
591strings.", "");
592
593
594 %extend {
595 DocAStr(GetPartialTextExtents,
596 "GetPartialTextExtents(self, text) -> [widths]",
597 "Returns a list of integers such that each value is the distance in
598pixels from the begining of text to the coresponding character of
599*text*. The generic version simply builds a running total of the widths
600of each character using GetTextExtent, however if the various
601platforms have a native API function that is faster or more accurate
602than the generic implementation then it will be used instead.", "");
603 wxArrayInt GetPartialTextExtents(const wxString& text) {
604 wxArrayInt widths;
605 self->GetPartialTextExtents(text, widths);
606 return widths;
607 }
608 }
609
610
611 // size and resolution
612 // -------------------
613
614 DocStr(
615 GetSize,
616 "This gets the horizontal and vertical resolution in device units. It
617can be used to scale graphics to fit the page. For example, if *maxX*
618and *maxY* represent the maximum horizontal and vertical 'pixel' values
619used in your application, the following code will scale the graphic to
620fit on the printer page::
621
622 w, h = dc.GetSize()
623 scaleX = maxX*1.0 / w
624 scaleY = maxY*1.0 / h
625 dc.SetUserScale(min(scaleX,scaleY),min(scaleX,scaleY))
626", "");
627 wxSize GetSize();
628 DocDeclAName(
629 void, GetSize( int *OUTPUT, int *OUTPUT ),
630 "GetSizeTuple() -> (width, height)",
631 GetSizeTuple);
632
633
634 DocStr(GetSizeMM, "Get the DC size in milimeters.", "");
635 wxSize GetSizeMM() const;
636 DocDeclAName(
637 void, GetSizeMM( int *OUTPUT, int *OUTPUT ) const,
638 "GetSizeMMTuple() -> (width, height)",
639 GetSizeMMTuple);
640
641
642
643 // coordinates conversions
644 // -----------------------
645
646 DocDeclStr(
647 wxCoord , DeviceToLogicalX(wxCoord x) const,
648 "Convert device X coordinate to logical coordinate, using the current
649mapping mode.", "");
650
651 DocDeclStr(
652 wxCoord , DeviceToLogicalY(wxCoord y) const,
653 "Converts device Y coordinate to logical coordinate, using the current
654mapping mode.", "");
655
656 DocDeclStr(
657 wxCoord , DeviceToLogicalXRel(wxCoord x) const,
658 "Convert device X coordinate to relative logical coordinate, using the
659current mapping mode but ignoring the x axis orientation. Use this
660function for converting a width, for example.", "");
661
662 DocDeclStr(
663 wxCoord , DeviceToLogicalYRel(wxCoord y) const,
664 "Convert device Y coordinate to relative logical coordinate, using the
665current mapping mode but ignoring the y axis orientation. Use this
666function for converting a height, for example.", "");
667
668 DocDeclStr(
669 wxCoord , LogicalToDeviceX(wxCoord x) const,
670 "Converts logical X coordinate to device coordinate, using the current
671mapping mode.", "");
672
673 DocDeclStr(
674 wxCoord , LogicalToDeviceY(wxCoord y) const,
675 "Converts logical Y coordinate to device coordinate, using the current
676mapping mode.", "");
677
678 DocDeclStr(
679 wxCoord , LogicalToDeviceXRel(wxCoord x) const,
680 "Converts logical X coordinate to relative device coordinate, using the
681current mapping mode but ignoring the x axis orientation. Use this for
682converting a width, for example.", "");
683
684 DocDeclStr(
685 wxCoord , LogicalToDeviceYRel(wxCoord y) const,
686 "Converts logical Y coordinate to relative device coordinate, using the
687current mapping mode but ignoring the y axis orientation. Use this for
688converting a height, for example.", "");
689
690
691
692 // query DC capabilities
693 // ---------------------
694
695 virtual bool CanDrawBitmap() const;
696 virtual bool CanGetTextExtent() const;
697
698
699 DocDeclStr(
700 virtual int , GetDepth() const,
701 "Returns the colour depth of the DC.", "");
702
703
704 DocDeclStr(
705 virtual wxSize , GetPPI() const,
706 "Resolution in pixels per inch", "");
707
708
709 DocDeclStr(
710 virtual bool , IsOk() const,
711 "Returns true if the DC is ok to use.", "");
712 %pythoncode { Ok = IsOk }
713
714
715
716 DocDeclStr(
717 int , GetBackgroundMode() const,
718 "Returns the current background mode, either ``wx.SOLID`` or
719``wx.TRANSPARENT``.","
720
721:see: `SetBackgroundMode`");
722
723 DocDeclStr(
724 const wxBrush& , GetBackground() const,
725 "Gets the brush used for painting the background.","
726
727:see: `SetBackground`");
728
729 DocDeclStr(
730 const wxBrush& , GetBrush() const,
731 "Gets the current brush", "");
732
733 DocDeclStr(
734 const wxFont& , GetFont() const,
735 "Gets the current font", "");
736
737 DocDeclStr(
738 const wxPen& , GetPen() const,
739 "Gets the current pen", "");
740
741 DocDeclStr(
742 const wxColour& , GetTextBackground() const,
743 "Gets the current text background colour", "");
744
745 DocDeclStr(
746 const wxColour& , GetTextForeground() const,
747 "Gets the current text foreground colour", "");
748
749
750 DocDeclStr(
751 virtual void , SetTextForeground(const wxColour& colour),
752 "Sets the current text foreground colour for the DC.", "");
753
754 DocDeclStr(
755 virtual void , SetTextBackground(const wxColour& colour),
756 "Sets the current text background colour for the DC.", "");
757
758
759 DocDeclStr(
760 int , GetMapMode() const,
761 "Gets the current *mapping mode* for the device context ", "");
762
763 DocDeclStr(
764 virtual void , SetMapMode(int mode),
765 "The *mapping mode* of the device context defines the unit of
766measurement used to convert logical units to device units. The
767mapping mode can be one of the following:
768
769 ================ =============================================
770 wx.MM_TWIPS Each logical unit is 1/20 of a point, or 1/1440
771 of an inch.
772 wx.MM_POINTS Each logical unit is a point, or 1/72 of an inch.
773 wx.MM_METRIC Each logical unit is 1 mm.
774 wx.MM_LOMETRIC Each logical unit is 1/10 of a mm.
775 wx.MM_TEXT Each logical unit is 1 pixel.
776 ================ =============================================
777","
778Note that in X, text drawing isn't handled consistently with the
779mapping mode; a font is always specified in point size. However,
780setting the user scale (see `SetUserScale`) scales the text
781appropriately. In Windows, scalable TrueType fonts are always used; in
782X, results depend on availability of fonts, but usually a reasonable
783match is found.
784
785The coordinate origin is always at the top left of the screen/printer.
786
787Drawing to a Windows printer device context uses the current mapping
788mode, but mapping mode is currently ignored for PostScript output.
789");
790
791
792
793 DocDeclAStr(
794 virtual void, GetUserScale(double *OUTPUT, double *OUTPUT) const,
795 "GetUserScale(self) -> (xScale, yScale)",
796 "Gets the current user scale factor (set by `SetUserScale`).", "");
797
798 DocDeclStr(
799 virtual void , SetUserScale(double x, double y),
800 "Sets the user scaling factor, useful for applications which require
801'zooming'.", "");
802
803
804
805 DocDeclA(
806 virtual void, GetLogicalScale(double *OUTPUT, double *OUTPUT),
807 "GetLogicalScale() -> (xScale, yScale)");
808
809 virtual void SetLogicalScale(double x, double y);
810
811
812 wxPoint GetLogicalOrigin() const;
813 DocDeclAName(
814 void, GetLogicalOrigin(wxCoord *OUTPUT, wxCoord *OUTPUT) const,
815 "GetLogicalOriginTuple() -> (x,y)",
816 GetLogicalOriginTuple);
817
818 virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
819 %extend {
820 void SetLogicalOriginPoint(const wxPoint& point) {
821 self->SetLogicalOrigin(point.x, point.y);
822 }
823 }
824
825
826 wxPoint GetDeviceOrigin() const;
827 DocDeclAName(
828 void, GetDeviceOrigin(wxCoord *OUTPUT, wxCoord *OUTPUT) const,
829 "GetDeviceOriginTuple() -> (x,y)",
830 GetDeviceOriginTuple);
831
832 virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
833 %extend {
834 void SetDeviceOriginPoint(const wxPoint& point) {
835 self->SetDeviceOrigin(point.x, point.y);
836 }
837 }
838
839 DocDeclStr(
840 virtual void , SetAxisOrientation(bool xLeftRight, bool yBottomUp),
841 "Sets the x and y axis orientation (i.e., the direction from lowest to
842highest values on the axis). The default orientation is the natural
843orientation, e.g. x axis from left to right and y axis from bottom up.", "");
844
845
846 DocDeclStr(
847 int , GetLogicalFunction() const,
848 "Gets the current logical function (set by `SetLogicalFunction`).", "");
849
850 DocDeclStr(
851 virtual void , SetLogicalFunction(int function),
852 "Sets the current logical function for the device context. This
853determines how a source pixel (from a pen or brush colour, or source
854device context if using `Blit`) combines with a destination pixel in
855the current device context.
856
857The possible values and their meaning in terms of source and
858destination pixel values are as follows:
859
860 ================ ==========================
861 wx.AND src AND dst
862 wx.AND_INVERT (NOT src) AND dst
863 wx.AND_REVERSE src AND (NOT dst)
864 wx.CLEAR 0
865 wx.COPY src
866 wx.EQUIV (NOT src) XOR dst
867 wx.INVERT NOT dst
868 wx.NAND (NOT src) OR (NOT dst)
869 wx.NOR (NOT src) AND (NOT dst)
870 wx.NO_OP dst
871 wx.OR src OR dst
872 wx.OR_INVERT (NOT src) OR dst
873 wx.OR_REVERSE src OR (NOT dst)
874 wx.SET 1
875 wx.SRC_INVERT NOT src
876 wx.XOR src XOR dst
877 ================ ==========================
878
879The default is wx.COPY, which simply draws with the current
880colour. The others combine the current colour and the background using
881a logical operation. wx.INVERT is commonly used for drawing rubber
882bands or moving outlines, since drawing twice reverts to the original
883colour.
884", "");
885
886
887 DocDeclStr(
888 void , ComputeScaleAndOrigin(),
889 "Performs all necessary computations for given platform and context
890type after each change of scale and origin parameters. Usually called
891automatically internally after such changes.
892", "");
893
894
895
896// DocDeclStr(
897// virtual void , SetOptimization(bool optimize),
898// "If *optimize* is true this function sets optimization mode on. This
899// currently means that under X, the device context will not try to set a
900// pen or brush property if it is known to be set already. This approach
901// can fall down if non-wxWidgets code is using the same device context
902// or window, for example when the window is a panel on which the
903// windowing system draws panel items. The wxWidgets device context
904// 'memory' will now be out of step with reality.
905
906// Setting optimization off, drawing, then setting it back on again, is a
907// trick that must occasionally be employed.", "");
908
909// DocDeclStr(
910// virtual bool , GetOptimization(),
911// "Returns true if device context optimization is on. See
912// `SetOptimization` for details.", "");
913
914 %pythoncode {
915 def SetOptimization(self, optimize):
916 pass
917 def GetOptimization(self):
918 return False
919
920 SetOptimization = wx._deprecated(SetOptimization)
921 GetOptimization = wx._deprecated(GetOptimization)
922 }
923
924
925 // bounding box
926 // ------------
927
928 DocDeclStr(
929 virtual void , CalcBoundingBox(wxCoord x, wxCoord y),
930 "Adds the specified point to the bounding box which can be retrieved
931with `MinX`, `MaxX` and `MinY`, `MaxY` or `GetBoundingBox` functions.", "");
932
933 %extend {
934 DocStr(CalcBoundingBoxPoint,
935 "Adds the specified point to the bounding box which can be retrieved
936with `MinX`, `MaxX` and `MinY`, `MaxY` or `GetBoundingBox` functions.","");
937 void CalcBoundingBoxPoint(const wxPoint& point) {
938 self->CalcBoundingBox(point.x, point.y);
939 }
940 }
941
942 DocDeclStr(
943 void , ResetBoundingBox(),
944 "Resets the bounding box: after a call to this function, the bounding
945box doesn't contain anything.", "");
946
947
948 // Get the final bounding box of the PostScript or Metafile picture.
949 DocDeclStr(
950 wxCoord , MinX() const,
951 "Gets the minimum horizontal extent used in drawing commands so far.", "");
952
953 DocDeclStr(
954 wxCoord , MaxX() const,
955 "Gets the maximum horizontal extent used in drawing commands so far.", "");
956
957 DocDeclStr(
958 wxCoord , MinY() const,
959 "Gets the minimum vertical extent used in drawing commands so far.", "");
960
961 DocDeclStr(
962 wxCoord , MaxY() const,
963 "Gets the maximum vertical extent used in drawing commands so far.", "");
964
965
966
967 DocAStr(GetBoundingBox,
968 "GetBoundingBox() -> (x1,y1, x2,y2)",
969 "Returns the min and max points used in drawing commands so far.", "");
970 %extend {
971 void GetBoundingBox(int* OUTPUT, int* OUTPUT, int* OUTPUT, int* OUTPUT);
972 // See below for implementation
973 }
974
975 %pythoncode { def __nonzero__(self): return self.IsOk() };
976
977
978 // RTL related functions
979 // ---------------------
980
981 DocDeclStr(
982 virtual wxLayoutDirection , GetLayoutDirection() const,
983 "Get the layout direction (LTR or RTL)_ for this dc. On platforms
984where RTL layout is supported, the return value will either be
985``wx.Layout_LeftToRight`` or ``wx.Layout_RightToLeft``.
986``wx.Layout_Default`` is returned if layout direction is not
987supported.", "");
988
989 DocDeclStr(
990 virtual void , SetLayoutDirection(wxLayoutDirection dir),
991 "Change the layout direction for this dc.", "");
992
993
994
995
996#ifdef __WXMSW__
997 long GetHDC();
998#endif
999
1000
1001 %extend { // See drawlist.cpp for impplementaion of these...
1002 PyObject* _DrawPointList(PyObject* pyCoords, PyObject* pyPens, PyObject* pyBrushes)
1003 {
1004 return wxPyDrawXXXList(*self, wxPyDrawXXXPoint, pyCoords, pyPens, pyBrushes);
1005 }
1006
1007 PyObject* _DrawLineList(PyObject* pyCoords, PyObject* pyPens, PyObject* pyBrushes)
1008 {
1009 return wxPyDrawXXXList(*self, wxPyDrawXXXLine, pyCoords, pyPens, pyBrushes);
1010 }
1011
1012 PyObject* _DrawRectangleList(PyObject* pyCoords, PyObject* pyPens, PyObject* pyBrushes)
1013 {
1014 return wxPyDrawXXXList(*self, wxPyDrawXXXRectangle, pyCoords, pyPens, pyBrushes);
1015 }
1016
1017 PyObject* _DrawEllipseList(PyObject* pyCoords, PyObject* pyPens, PyObject* pyBrushes)
1018 {
1019 return wxPyDrawXXXList(*self, wxPyDrawXXXEllipse, pyCoords, pyPens, pyBrushes);
1020 }
1021
1022 PyObject* _DrawPolygonList(PyObject* pyCoords, PyObject* pyPens, PyObject* pyBrushes)
1023 {
1024 return wxPyDrawXXXList(*self, wxPyDrawXXXPolygon, pyCoords, pyPens, pyBrushes);
1025 }
1026
1027 PyObject* _DrawTextList(PyObject* textList, PyObject* pyPoints,
1028 PyObject* foregroundList, PyObject* backgroundList) {
1029 return wxPyDrawTextList(*self, textList, pyPoints, foregroundList, backgroundList);
1030 }
1031 }
1032
1033 %pythoncode {
1034 def DrawPointList(self, points, pens=None):
1035 """
1036 Draw a list of points as quickly as possible.
1037
1038 :param points: A sequence of 2-element sequences representing
1039 each point to draw, (x,y).
1040 :param pens: If None, then the current pen is used. If a
1041 single pen then it will be used for all points. If
1042 a list of pens then there should be one for each point
1043 in points.
1044 """
1045 if pens is None:
1046 pens = []
1047 elif isinstance(pens, wx.Pen):
1048 pens = [pens]
1049 elif len(pens) != len(points):
1050 raise ValueError('points and pens must have same length')
1051 return self._DrawPointList(points, pens, [])
1052
1053
1054 def DrawLineList(self, lines, pens=None):
1055 """
1056 Draw a list of lines as quickly as possible.
1057
1058 :param lines: A sequence of 4-element sequences representing
1059 each line to draw, (x1,y1, x2,y2).
1060 :param pens: If None, then the current pen is used. If a
1061 single pen then it will be used for all lines. If
1062 a list of pens then there should be one for each line
1063 in lines.
1064 """
1065 if pens is None:
1066 pens = []
1067 elif isinstance(pens, wx.Pen):
1068 pens = [pens]
1069 elif len(pens) != len(lines):
1070 raise ValueError('lines and pens must have same length')
1071 return self._DrawLineList(lines, pens, [])
1072
1073
1074 def DrawRectangleList(self, rectangles, pens=None, brushes=None):
1075 """
1076 Draw a list of rectangles as quickly as possible.
1077
1078 :param rectangles: A sequence of 4-element sequences representing
1079 each rectangle to draw, (x,y, w,h).
1080 :param pens: If None, then the current pen is used. If a
1081 single pen then it will be used for all rectangles.
1082 If a list of pens then there should be one for each
1083 rectangle in rectangles.
1084 :param brushes: A brush or brushes to be used to fill the rectagles,
1085 with similar semantics as the pens parameter.
1086 """
1087 if pens is None:
1088 pens = []
1089 elif isinstance(pens, wx.Pen):
1090 pens = [pens]
1091 elif len(pens) != len(rectangles):
1092 raise ValueError('rectangles and pens must have same length')
1093 if brushes is None:
1094 brushes = []
1095 elif isinstance(brushes, wx.Brush):
1096 brushes = [brushes]
1097 elif len(brushes) != len(rectangles):
1098 raise ValueError('rectangles and brushes must have same length')
1099 return self._DrawRectangleList(rectangles, pens, brushes)
1100
1101
1102 def DrawEllipseList(self, ellipses, pens=None, brushes=None):
1103 """
1104 Draw a list of ellipses as quickly as possible.
1105
1106 :param ellipses: A sequence of 4-element sequences representing
1107 each ellipse to draw, (x,y, w,h).
1108 :param pens: If None, then the current pen is used. If a
1109 single pen then it will be used for all ellipses.
1110 If a list of pens then there should be one for each
1111 ellipse in ellipses.
1112 :param brushes: A brush or brushes to be used to fill the ellipses,
1113 with similar semantics as the pens parameter.
1114 """
1115 if pens is None:
1116 pens = []
1117 elif isinstance(pens, wx.Pen):
1118 pens = [pens]
1119 elif len(pens) != len(ellipses):
1120 raise ValueError('ellipses and pens must have same length')
1121 if brushes is None:
1122 brushes = []
1123 elif isinstance(brushes, wx.Brush):
1124 brushes = [brushes]
1125 elif len(brushes) != len(ellipses):
1126 raise ValueError('ellipses and brushes must have same length')
1127 return self._DrawEllipseList(ellipses, pens, brushes)
1128
1129
1130 def DrawPolygonList(self, polygons, pens=None, brushes=None):
1131 """
1132 Draw a list of polygons, each of which is a list of points.
1133
1134 :param polygons: A sequence of sequences of sequences.
1135 [[(x1,y1),(x2,y2),(x3,y3)...],
1136 [(x1,y1),(x2,y2),(x3,y3)...]]
1137
1138 :param pens: If None, then the current pen is used. If a
1139 single pen then it will be used for all polygons.
1140 If a list of pens then there should be one for each
1141 polygon.
1142 :param brushes: A brush or brushes to be used to fill the polygons,
1143 with similar semantics as the pens parameter.
1144 """
1145 if pens is None:
1146 pens = []
1147 elif isinstance(pens, wx.Pen):
1148 pens = [pens]
1149 elif len(pens) != len(polygons):
1150 raise ValueError('polygons and pens must have same length')
1151 if brushes is None:
1152 brushes = []
1153 elif isinstance(brushes, wx.Brush):
1154 brushes = [brushes]
1155 elif len(brushes) != len(polygons):
1156 raise ValueError('polygons and brushes must have same length')
1157 return self._DrawPolygonList(polygons, pens, brushes)
1158
1159
1160 def DrawTextList(self, textList, coords, foregrounds = None, backgrounds = None):
1161 """
1162 Draw a list of strings using a list of coordinants for positioning each string.
1163
1164 :param textList: A list of strings
1165 :param coords: A list of (x,y) positions
1166 :param foregrounds: A list of `wx.Colour` objects to use for the
1167 foregrounds of the strings.
1168 :param backgrounds: A list of `wx.Colour` objects to use for the
1169 backgrounds of the strings.
1170
1171 NOTE: Make sure you set Background mode to wx.Solid (DC.SetBackgroundMode)
1172 If you want backgrounds to do anything.
1173 """
1174 if type(textList) == type(''):
1175 textList = [textList]
1176 elif len(textList) != len(coords):
1177 raise ValueError('textlist and coords must have same length')
1178 if foregrounds is None:
1179 foregrounds = []
1180 elif isinstance(foregrounds, wx.Colour):
1181 foregrounds = [foregrounds]
1182 elif len(foregrounds) != len(coords):
1183 raise ValueError('foregrounds and coords must have same length')
1184 if backgrounds is None:
1185 backgrounds = []
1186 elif isinstance(backgrounds, wx.Colour):
1187 backgrounds = [backgrounds]
1188 elif len(backgrounds) != len(coords):
1189 raise ValueError('backgrounds and coords must have same length')
1190 return self._DrawTextList(textList, coords, foregrounds, backgrounds)
1191 }
1192
1193 %property(Background, GetBackground, SetBackground, doc="See `GetBackground` and `SetBackground`");
1194 %property(BackgroundMode, GetBackgroundMode, SetBackgroundMode, doc="See `GetBackgroundMode` and `SetBackgroundMode`");
1195 %property(BoundingBox, GetBoundingBox, doc="See `GetBoundingBox`");
1196 %property(Brush, GetBrush, SetBrush, doc="See `GetBrush` and `SetBrush`");
1197 %property(CharHeight, GetCharHeight, doc="See `GetCharHeight`");
1198 %property(CharWidth, GetCharWidth, doc="See `GetCharWidth`");
1199 %property(ClippingBox, GetClippingBox, doc="See `GetClippingBox`");
1200 %property(ClippingRect, GetClippingRect, SetClippingRect, doc="See `GetClippingRect` and `SetClippingRect`");
1201 %property(Depth, GetDepth, doc="See `GetDepth`");
1202 %property(DeviceOrigin, GetDeviceOrigin, SetDeviceOrigin, doc="See `GetDeviceOrigin` and `SetDeviceOrigin`");
1203 %property(Font, GetFont, SetFont, doc="See `GetFont` and `SetFont`");
1204 %property(FullTextExtent, GetFullTextExtent, doc="See `GetFullTextExtent`");
1205 %property(LogicalFunction, GetLogicalFunction, SetLogicalFunction, doc="See `GetLogicalFunction` and `SetLogicalFunction`");
1206 %property(LogicalOrigin, GetLogicalOrigin, SetLogicalOrigin, doc="See `GetLogicalOrigin` and `SetLogicalOrigin`");
1207 %property(LogicalScale, GetLogicalScale, SetLogicalScale, doc="See `GetLogicalScale` and `SetLogicalScale`");
1208 %property(MapMode, GetMapMode, SetMapMode, doc="See `GetMapMode` and `SetMapMode`");
1209 %property(MultiLineTextExtent, GetMultiLineTextExtent, doc="See `GetMultiLineTextExtent`");
1210 %property(Optimization, GetOptimization, SetOptimization, doc="See `GetOptimization` and `SetOptimization`");
1211 %property(PPI, GetPPI, doc="See `GetPPI`");
1212 %property(PartialTextExtents, GetPartialTextExtents, doc="See `GetPartialTextExtents`");
1213 %property(Pen, GetPen, SetPen, doc="See `GetPen` and `SetPen`");
1214 %property(Pixel, GetPixel, doc="See `GetPixel`");
1215 %property(PixelPoint, GetPixelPoint, doc="See `GetPixelPoint`");
1216 %property(Size, GetSize, doc="See `GetSize`");
1217 %property(SizeMM, GetSizeMM, doc="See `GetSizeMM`");
1218 %property(TextBackground, GetTextBackground, SetTextBackground, doc="See `GetTextBackground` and `SetTextBackground`");
1219 %property(TextExtent, GetTextExtent, doc="See `GetTextExtent`");
1220 %property(TextForeground, GetTextForeground, SetTextForeground, doc="See `GetTextForeground` and `SetTextForeground`");
1221 %property(UserScale, GetUserScale, SetUserScale, doc="See `GetUserScale` and `SetUserScale`");
1222
1223 %property(LayoutDirection, GetLayoutDirection, SetLayoutDirection);
1224};
1225
1226
1227
1228%{
1229static void wxDC_GetBoundingBox(wxDC* dc, int* x1, int* y1, int* x2, int* y2) {
1230 *x1 = dc->MinX();
1231 *y1 = dc->MinY();
1232 *x2 = dc->MaxX();
1233 *y2 = dc->MaxY();
1234}
1235%}
1236
1237
1238//---------------------------------------------------------------------------
1239%newgroup
1240
1241MustHaveApp(wxMemoryDC);
1242
1243DocStr(wxMemoryDC,
1244"A memory device context provides a means to draw graphics onto a
1245bitmap. A bitmap must be selected into the new memory DC before it may
1246be used for anything. Typical usage is as follows::
1247
1248 dc = wx.MemoryDC()
1249 dc.SelectObject(bitmap)
1250 # draw on the dc usign any of the Draw methods
1251 dc.SelectObject(wx.NullBitmap)
1252 # the bitmap now contains wahtever was drawn upon it
1253
1254Note that the memory DC *must* be deleted (or the bitmap selected out
1255of it) before a bitmap can be reselected into another memory DC.
1256", "");
1257
1258class wxMemoryDC : public wxDC {
1259public:
1260 DocCtorStr(
1261 wxMemoryDC(),
1262 "Constructs a new memory device context.
1263
1264Use the Ok member to test whether the constructor was successful in
1265creating a usable device context. Don't forget to select a bitmap into
1266the DC before drawing on it.", "
1267
1268:see: `MemoryDCFromDC`");
1269
1270 DocCtorStrName(
1271 wxMemoryDC(wxDC* oldDC),
1272 "Creates a DC that is compatible with the oldDC.", "",
1273 MemoryDCFromDC);
1274
1275
1276 DocDeclStr(
1277 void , SelectObject(const wxBitmap& bitmap),
1278 "Selects the bitmap into the device context, to use as the memory
1279bitmap. Selecting the bitmap into a memory DC allows you to draw into
1280the DC, and therefore the bitmap, and also to use Blit to copy the
1281bitmap to a window.
1282
1283If the argument is wx.NullBitmap (or some other uninitialised
1284`wx.Bitmap`) the current bitmap is selected out of the device context,
1285and the original bitmap restored, allowing the current bitmap to be
1286destroyed safely.", "");
1287
1288};
1289
1290//---------------------------------------------------------------------------
1291%newgroup
1292
1293
1294%{
1295#include <wx/dcbuffer.h>
1296%}
1297
1298enum {
1299 wxBUFFER_VIRTUAL_AREA,
1300 wxBUFFER_CLIENT_AREA
1301};
1302
1303MustHaveApp(wxBufferedDC);
1304
1305DocStr(wxBufferedDC,
1306"This simple class provides a simple way to avoid flicker: when drawing
1307on it, everything is in fact first drawn on an in-memory buffer (a
1308`wx.Bitmap`) and then copied to the screen only once, when this object
1309is destroyed.
1310
1311It can be used in the same way as any other device context.
1312wx.BufferedDC itself typically replaces `wx.ClientDC`, if you want to
1313use it in your EVT_PAINT handler, you should look at
1314`wx.BufferedPaintDC`.
1315
1316Please note that GTK+ 2.0 and OS X provide double buffering themselves
1317natively so using this class on those platforms will normally result
1318in an unneeded level of buffering.
1319", "");
1320
1321class wxBufferedDC : public wxDC
1322{
1323public:
1324 %pythonAppend wxBufferedDC
1325 "self.__dc = args[0] # save a ref so the other dc will not be deleted before self";
1326
1327 %nokwargs wxBufferedDC;
1328
1329 DocStr(
1330 wxBufferedDC,
1331 "Constructs a buffered DC.", "
1332
1333 :param dc: The underlying DC: everything drawn to this object will
1334 be flushed to this DC when this object is destroyed. You may
1335 pass ``None`` in order to just initialize the buffer, and not
1336 flush it.
1337
1338 :param buffer: If a `wx.Size` object is passed as the 2nd arg then
1339 it is the size of the bitmap that will be created internally
1340 and used for an implicit buffer. If the 2nd arg is a
1341 `wx.Bitmap` then it is the explicit buffer that will be
1342 used. Using an explicit buffer is the most efficient solution
1343 as the bitmap doesn't have to be recreated each time but it
1344 also requires more memory as the bitmap is never freed. The
1345 bitmap should have appropriate size, anything drawn outside of
1346 its bounds is clipped. If wx.NullBitmap is used then a new
1347 buffer will be allocated that is the same size as the dc.
1348
1349 :param style: The style parameter indicates whether the supplied buffer is
1350 intended to cover the entire virtual size of a `wx.ScrolledWindow` or
1351 if it only covers the client area. Acceptable values are
1352 ``wx.BUFFER_VIRTUAL_AREA`` and ``wx.BUFFER_CLIENT_AREA``.
1353
1354");
1355 wxBufferedDC( wxDC* dc,
1356 const wxBitmap& buffer=wxNullBitmap,
1357 int style = wxBUFFER_CLIENT_AREA );
1358 wxBufferedDC( wxDC* dc,
1359 const wxSize& area,
1360 int style = wxBUFFER_CLIENT_AREA );
1361 wxBufferedDC(wxWindow* win,
1362 wxDC *dc,
1363 const wxSize &area,
1364 int style = wxBUFFER_CLIENT_AREA);
1365
1366
1367 DocCtorStr(
1368 ~wxBufferedDC(),
1369 "Copies everything drawn on the DC so far to the underlying DC
1370associated with this object, if any.", "");
1371
1372
1373 DocDeclStr(
1374 void , UnMask(),
1375 "Blits the buffer to the dc, and detaches the dc from the buffer (so it
1376can be effectively used once only). This is usually only called in
1377the destructor.", "");
1378
1379};
1380
1381
1382
1383
1384MustHaveApp(wxBufferedPaintDC);
1385
1386DocStr(wxBufferedPaintDC,
1387"This is a subclass of `wx.BufferedDC` which can be used inside of an
1388EVT_PAINT event handler. Just create an object of this class instead
1389of `wx.PaintDC` and that's all you have to do to (mostly) avoid
1390flicker. The only thing to watch out for is that if you are using this
1391class together with `wx.ScrolledWindow`, you probably do **not** want
1392to call `wx.Window.PrepareDC` on it as it already does this internally
1393for the real underlying `wx.PaintDC`.
1394
1395If your window is already fully buffered in a `wx.Bitmap` then your
1396EVT_PAINT handler can be as simple as just creating a
1397``wx.BufferedPaintDC`` as it will `Blit` the buffer to the window
1398automatically when it is destroyed. For example::
1399
1400 def OnPaint(self, event):
1401 dc = wx.BufferedPaintDC(self, self.buffer)
1402
1403
1404", "");
1405
1406class wxBufferedPaintDC : public wxBufferedDC
1407{
1408public:
1409
1410 DocCtorStr(
1411 wxBufferedPaintDC( wxWindow *window,
1412 const wxBitmap &buffer = wxNullBitmap,
1413 int style = wxBUFFER_CLIENT_AREA),
1414 "Create a buffered paint DC. As with `wx.BufferedDC`, you may either
1415provide the bitmap to be used for buffering or let this object create
1416one internally (in the latter case, the size of the client part of the
1417window is automatically used).", "");
1418
1419};
1420
1421//---------------------------------------------------------------------------
1422%newgroup
1423
1424MustHaveApp(wxScreenDC);
1425
1426DocStr(wxScreenDC,
1427"A wxScreenDC can be used to paint anywhere on the screen. This should
1428normally be constructed as a temporary stack object; don't store a
1429wxScreenDC object.
1430", "");
1431class wxScreenDC : public wxDC {
1432public:
1433 wxScreenDC();
1434
1435 DocDeclStrName(
1436 bool , StartDrawingOnTop(wxWindow* window),
1437 "Specify that the area of the screen to be drawn upon coincides with
1438the given window.
1439
1440:see: `EndDrawingOnTop`", "",
1441 StartDrawingOnTopWin);
1442
1443
1444 DocDeclStr(
1445 bool , StartDrawingOnTop(wxRect* rect = NULL),
1446 "Specify that the area is the given rectangle, or the whole screen if
1447``None`` is passed.
1448
1449:see: `EndDrawingOnTop`", "");
1450
1451
1452 DocDeclStr(
1453 bool , EndDrawingOnTop(),
1454 "Use this in conjunction with `StartDrawingOnTop` or
1455`StartDrawingOnTopWin` to ensure that drawing to the screen occurs on
1456top of existing windows. Without this, some window systems (such as X)
1457only allow drawing to take place underneath other windows.
1458
1459You might use this pair of functions when implementing a drag feature,
1460for example as in the `wx.SplitterWindow` implementation.
1461
1462These functions are probably obsolete since the X implementations
1463allow drawing directly on the screen now. However, the fact that this
1464function allows the screen to be refreshed afterwards may be useful
1465to some applications.", "");
1466
1467};
1468
1469//---------------------------------------------------------------------------
1470%newgroup
1471
1472MustHaveApp(wxWindowDC);
1473
1474DocStr(wxWindowDC,
1475 "A wx.WindowDC must be constructed if an application wishes to paint on
1476the whole area of a window (client and decorations). This should
1477normally be constructed as a temporary stack object; don't store a
1478wx.WindowDC object.","");
1479class wxWindowDC : public wxDC {
1480public:
1481 DocCtorStr(
1482 wxWindowDC(wxWindow* win),
1483 "Constructor. Pass the window on which you wish to paint.","");
1484};
1485
1486//---------------------------------------------------------------------------
1487%newgroup
1488
1489MustHaveApp(wxClientDC);
1490
1491DocStr(wxClientDC,
1492"A wx.ClientDC must be constructed if an application wishes to paint on
1493the client area of a window from outside an EVT_PAINT event. This should
1494normally be constructed as a temporary stack object; don't store a
1495wx.ClientDC object long term.
1496
1497To draw on a window from within an EVT_PAINT handler, construct a
1498`wx.PaintDC` object.
1499
1500To draw on the whole window including decorations, construct a
1501`wx.WindowDC` object (Windows only).
1502", "");
1503class wxClientDC : public wxWindowDC {
1504public:
1505 DocCtorStr(
1506 wxClientDC(wxWindow* win),
1507 "Constructor. Pass the window on which you wish to paint.", "");
1508};
1509
1510//---------------------------------------------------------------------------
1511%newgroup
1512
1513MustHaveApp(wxPaintDC);
1514
1515DocStr(wxPaintDC,
1516"A wx.PaintDC must be constructed if an application wishes to paint on
1517the client area of a window from within an EVT_PAINT event
1518handler. This should normally be constructed as a temporary stack
1519object; don't store a wx.PaintDC object. If you have an EVT_PAINT
1520handler, you **must** create a wx.PaintDC object within it even if you
1521don't actually use it.
1522
1523Using wx.PaintDC within EVT_PAINT handlers is important because it
1524automatically sets the clipping area to the damaged area of the
1525window. Attempts to draw outside this area do not appear.
1526
1527To draw on a window from outside EVT_PAINT handlers, construct a
1528`wx.ClientDC` object.
1529","");
1530class wxPaintDC : public wxClientDC {
1531public:
1532 DocCtorStr(
1533 wxPaintDC(wxWindow* win),
1534 "Constructor. Pass the window on which you wish to paint.", "");
1535};
1536
1537
1538
1539//---------------------------------------------------------------------------
1540%newgroup
1541
1542%pythoncode {
1543 if 'wxMac' in wx.PlatformInfo or 'gtk2' in wx.PlatformInfo:
1544 _AutoBufferedPaintDCBase = PaintDC
1545 else:
1546 _AutoBufferedPaintDCBase = BufferedPaintDC
1547
1548 class AutoBufferedPaintDC(_AutoBufferedPaintDCBase):
1549 """
1550 If the current platform double buffers by default then this DC is the
1551 same as a plain `wx.PaintDC`, otherwise it is a `wx.BufferedPaintDC`.
1552 """
1553 def __init__(self, window):
1554 _AutoBufferedPaintDCBase.__init__(self, window)
1555}
1556
1557//---------------------------------------------------------------------------
1558%newgroup
1559
1560MustHaveApp(wxMirrorDC);
1561
1562DocStr(wxMirrorDC,
1563"wx.MirrorDC is a simple wrapper class which is always associated with a
1564real `wx.DC` object and either forwards all of its operations to it
1565without changes (no mirroring takes place) or exchanges x and y
1566coordinates which makes it possible to reuse the same code to draw a
1567figure and its mirror -- i.e. reflection related to the diagonal line
1568x == y.", "");
1569class wxMirrorDC : public wxDC
1570{
1571public:
1572 DocCtorStr(
1573 wxMirrorDC(wxDC& dc, bool mirror),
1574 "Creates a mirrored DC associated with the real *dc*. Everything drawn
1575on the wx.MirrorDC will appear on the *dc*, and will be mirrored if
1576*mirror* is True.","");
1577};
1578
1579//---------------------------------------------------------------------------
1580%newgroup
1581
1582%{
1583#include <wx/dcps.h>
1584%}
1585
1586MustHaveApp(wxPostScriptDC);
1587
1588DocStr(wxPostScriptDC,
1589"This is a `wx.DC` that can write to PostScript files on any platform.","");
1590
1591class wxPostScriptDC : public wxDC {
1592public:
1593 DocCtorStr(
1594 wxPostScriptDC(const wxPrintData& printData),
1595 "Constructs a PostScript printer device context from a `wx.PrintData`
1596object.", "");
1597
1598 wxPrintData& GetPrintData();
1599 void SetPrintData(const wxPrintData& data);
1600
1601 DocDeclStr(
1602 static void , SetResolution(int ppi),
1603 "Set resolution (in pixels per inch) that will be used in PostScript
1604output. Default is 720ppi.", "");
1605
1606 DocDeclStr(
1607 static int , GetResolution(),
1608 "Return resolution used in PostScript output.", "");
1609
1610 %property(PrintData, GetPrintData, SetPrintData, doc="See `GetPrintData` and `SetPrintData`");
1611};
1612
1613//---------------------------------------------------------------------------
1614%newgroup
1615
1616
1617MustHaveApp(wxMetaFile);
1618MustHaveApp(wxMetaFileDC);
1619
1620
1621#if defined(__WXMSW__) || defined(__WXMAC__)
1622
1623%{
1624#include <wx/metafile.h>
1625%}
1626
1627class wxMetaFile : public wxObject {
1628public:
1629 wxMetaFile(const wxString& filename = wxPyEmptyString);
1630 ~wxMetaFile();
1631
1632 bool IsOk();
1633 %pythoncode { Ok = IsOk }
1634 bool SetClipboard(int width = 0, int height = 0);
1635
1636 wxSize GetSize();
1637 int GetWidth();
1638 int GetHeight();
1639
1640#ifdef __WXMSW__
1641 const wxString& GetFileName() const;
1642#endif
1643
1644 %pythoncode { def __nonzero__(self): return self.IsOk() }
1645};
1646
1647// bool wxMakeMetaFilePlaceable(const wxString& filename,
1648// int minX, int minY, int maxX, int maxY, float scale=1.0);
1649
1650
1651class wxMetaFileDC : public wxDC {
1652public:
1653 wxMetaFileDC(const wxString& filename = wxPyEmptyString,
1654 int width = 0, int height = 0,
1655 const wxString& description = wxPyEmptyString);
1656 wxMetaFile* Close();
1657};
1658
1659
1660
1661#else // Make some dummies for the other platforms
1662
1663%{
1664class wxMetaFile : public wxObject {
1665public:
1666 wxMetaFile(const wxString&)
1667 { wxPyRaiseNotImplemented(); }
1668};
1669
1670class wxMetaFileDC : public wxClientDC {
1671public:
1672 wxMetaFileDC(const wxString&, int, int, const wxString&)
1673 { wxPyRaiseNotImplemented(); }
1674};
1675
1676%}
1677
1678class wxMetaFile : public wxObject {
1679public:
1680 wxMetaFile(const wxString& filename = wxPyEmptyString);
1681};
1682
1683class wxMetaFileDC : public wxDC {
1684public:
1685 wxMetaFileDC(const wxString& filename = wxPyEmptyString,
1686 int width = 0, int height = 0,
1687 const wxString& description = wxPyEmptyString);
1688};
1689
1690
1691#endif
1692
1693
1694//---------------------------------------------------------------------------
1695
1696MustHaveApp(wxPrinterDC);
1697
1698#if defined(__WXMSW__) || defined(__WXMAC__)
1699
1700class wxPrinterDC : public wxDC {
1701public:
1702 wxPrinterDC(const wxPrintData& printData);
1703};
1704
1705#else
1706%{
1707class wxPrinterDC : public wxClientDC {
1708public:
1709 wxPrinterDC(const wxPrintData&)
1710 { wxPyRaiseNotImplemented(); }
1711
1712};
1713%}
1714
1715class wxPrinterDC : public wxDC {
1716public:
1717 wxPrinterDC(const wxPrintData& printData);
1718};
1719#endif
1720
1721//---------------------------------------------------------------------------
1722//---------------------------------------------------------------------------