The OpenD Programming Language

1 /**
2  * X Window System rendering using XLib
3  * 
4  * License:
5  * $(TABLE
6  *   $(TR $(TD cairoD wrapper/bindings)
7  *     $(TD $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)))
8  *   $(TR $(TD $(LINK2 http://cgit.freedesktop.org/cairo/tree/COPYING, _cairo))
9  *     $(TD $(LINK2 http://cgit.freedesktop.org/cairo/tree/COPYING-LGPL-2.1, LGPL 2.1) /
10  *     $(LINK2 http://cgit.freedesktop.org/cairo/plain/COPYING-MPL-1.1, MPL 1.1)))
11  * )
12  * Authors:
13  * $(TABLE
14  *   $(TR $(TD Johannes Pfau) $(TD cairoD))
15  *   $(TR $(TD $(LINK2 http://cairographics.org, _cairo team)) $(TD _cairo))
16  * )
17  */
18 /*
19  * Distributed under the Boost Software License, Version 1.0.
20  *    (See accompanying file LICENSE_1_0.txt or copy at
21  *          http://www.boost.org/LICENSE_1_0.txt)
22  */
23 module cairo.xlib;
24 
25 import cairo.cairo;
26 import cairo.c.cairo;
27 
28 static if(CAIRO_HAS_XLIB_SURFACE)
29 {
30     import cairo.c.xlib;
31     import x11.X, x11.Xlib;
32 
33     /**
34      * The XLib surface is used to render cairo graphics to X Window
35      * System windows and pixmaps using the XLib library.
36      *
37      * Note that the XLib surface automatically takes advantage of
38      * X render extension if it is available.
39      */
40     public class XlibSurface : Surface
41     {
42         public:
43             /**
44              * Create a $(D XlibSurface) from a existing $(D cairo_surface_t*).
45              * XlibSurface is a garbage collected class. It will call $(D cairo_surface_destroy)
46              * when it gets collected by the GC or when $(D dispose()) is called.
47              *
48              * Warning:
49              * $(D ptr)'s reference count is not increased by this function!
50              * Adjust reference count before calling it if necessary
51              *
52              * $(RED Only use this if you know what your doing!
53              * This function should not be needed for standard cairoD usage.)
54              */
55             this(cairo_surface_t* ptr)
56             {
57                 super(ptr);
58             }
59 
60             /**
61              * Creates an Xlib surface that draws to the given drawable.
62              * The way that colors are represented in the drawable
63              * is specified by the provided visual.
64              *
65              * Note: If drawable is a Window, then the function
66              * $(D setSize()) must be called
67              * whenever the size of the window changes.
68              *
69              * When drawable is a Window containing child windows then
70              * drawing to the created surface will be clipped by
71              * those child windows. When the created surface is
72              * used as a source, the contents of the children
73              * will be included.
74              */
75             this(Display* dpy, Drawable drawable, Visual* visual, int width, int height)
76             {
77                 super(cairo_xlib_surface_create(dpy, drawable, visual, width, height));
78             }
79 
80             /**
81              * Creates an Xlib surface that draws to the given bitmap.
82              * This will be drawn to as a CAIRO_FORMAT_A1 object.
83              */
84             this(Display* dpy, Pixmap bitmap, Screen* screen, int width, int height)
85             {
86                 super(cairo_xlib_surface_create_for_bitmap(dpy, bitmap,
87                     screen, width, height));
88             }
89 
90             /**
91              * Informs cairo of the new size of the X Drawable underlying
92              * the surface. For a surface created for a Window
93              * (rather than a Pixmap), this function must be called
94              * each time the size of the window changes. (For a
95              * subwindow, you are normally resizing the window yourself,
96              * but for a toplevel window, it is necessary to
97              * listen for ConfigureNotify events.)
98              *
99              * A Pixmap can never change size, so it is never necessary
100              * to call this function on a surface created for a Pixmap.
101              */
102             void setSize(int width, int height)
103             {
104                 cairo_xlib_surface_set_size(this.nativePointer, width, height);
105                 checkError();
106             }
107 
108             /**
109              * Get the X Display for the underlying X Drawable.
110              */
111             Display* getDisplay()
112             {
113                 auto tmp = cairo_xlib_surface_get_display(this.nativePointer);
114                 checkError();
115                 return tmp;
116             }
117 
118             /**
119              * Get the X Screen for the underlying X Drawable.
120              */
121             Screen* getScreen()
122             {
123                 auto tmp = cairo_xlib_surface_get_screen(this.nativePointer);
124                 checkError();
125                 return tmp;
126             }
127 
128             /**
129              * Informs cairo of a new X Drawable underlying the surface.
130              * The drawable must match the display, screen and format
131              * of the existing drawable or the application will
132              * get X protocol errors and will probably terminate.
133              * No checks are done by this function to ensure this compatibility.
134              */
135             void setDrawable(Drawable drawable, int width, int height)
136             {
137                 cairo_xlib_surface_set_drawable(this.nativePointer,
138                     drawable, width, height);
139                 checkError();
140             }
141 
142             /**
143              * Get the underlying X Drawable used for the surface.
144              */
145             Drawable getDrawable()
146             {
147                 auto tmp = cairo_xlib_surface_get_drawable(this.nativePointer);
148                 checkError();
149                 return tmp;
150             }
151 
152             /**
153              * Gets the X Visual associated with surface, suitable
154              * for use with the underlying X Drawable. If surface
155              * was created by cairo_xlib_surface_create(), the return
156              * value is the Visual passed to that constructor.
157              */
158             Visual* getVisual()
159             {
160                 auto tmp = cairo_xlib_surface_get_visual(this.nativePointer);
161                 checkError();
162                 return tmp;
163             }
164 
165             /**
166              * Get the width of the X Drawable underlying the surface in pixels
167              */
168             int getWidth()
169             {
170                 auto tmp = cairo_xlib_surface_get_width(this.nativePointer);
171                 checkError();
172                 return tmp;
173             }
174 
175             /**
176              * Get the height of the X Drawable underlying the surface in pixels
177              */
178             int getHeight()
179             {
180                 auto tmp = cairo_xlib_surface_get_height(this.nativePointer);
181                 checkError();
182                 return tmp;
183             }
184 
185             /**
186              * Get the number of bits used to represent each pixel value.
187              */
188             int getDepth()
189             {
190                 auto tmp = cairo_xlib_surface_get_depth(this.nativePointer);
191                 checkError();
192                 return tmp;
193             }
194     }
195 }