1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** GUIX Component */
16 /** */
17 /** Canvas Management (Canvas) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_system.h"
28 #include "gx_window.h"
29 #include "gx_canvas.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_canvas_shift PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function moves the canvas associated with a root window */
45 /* */
46 /* INPUT */
47 /* */
48 /* canvas Canvas control block */
49 /* x x-axis shift amount in pixels */
50 /* y y-axis shift amount in pixels */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* status Completion status */
55 /* */
56 /* CALLS */
57 /* */
58 /* gx_canvas_offset_set Set the canvas offset */
59 /* */
60 /* CALLED BY */
61 /* */
62 /* _gx_window_root_event_process */
63 /* */
64 /* RELEASE HISTORY */
65 /* */
66 /* DATE NAME DESCRIPTION */
67 /* */
68 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
69 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
70 /* resulting in version 6.1 */
71 /* */
72 /**************************************************************************/
_gx_canvas_shift(GX_CANVAS * canvas,GX_VALUE x,GX_VALUE y)73 UINT _gx_canvas_shift(GX_CANVAS *canvas, GX_VALUE x, GX_VALUE y)
74 {
75 GX_VALUE xpos;
76 GX_VALUE ypos;
77
78 xpos = (GX_VALUE)(canvas -> gx_canvas_display_offset_x + x);
79 ypos = (GX_VALUE)(canvas -> gx_canvas_display_offset_y + y);
80
81 return(_gx_canvas_offset_set(canvas, xpos, ypos));
82 }
83
84
