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 /** Slider Management (Slider) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23 /* Include necessary system files. */
24
25 #include "gx_api.h"
26 #include "gx_system.h"
27 #include "gx_canvas.h"
28 #include "gx_context.h"
29 #include "gx_widget.h"
30 #include "gx_slider.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _gx_pixelmap_slider_draw PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function draws the specified slider, which is a type of */
46 /* of widget designed to allow adjusting or display a value */
47 /* graphically */
48 /* */
49 /* INPUT */
50 /* */
51 /* slider Slider control block */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* None */
56 /* */
57 /* CALLS */
58 /* */
59 /* _gx_slider_needle_position_get Get the position of the */
60 /* slider needle */
61 /* _gx_canvas_pixelmap_tile Tile a pixelmap */
62 /* _gx_context_pixelmap_get Retrieve pixelmap image */
63 /* _gx_sidget_width_get Obtain the width of a widget */
64 /* _gx_wdiget_background_draw Draw widget background */
65 /* _gx_canvas_pixelmap_draw Draw pixelmap on canvas */
66 /* */
67 /* CALLED BY */
68 /* */
69 /* Application Code */
70 /* GUIX Internal Code */
71 /* */
72 /* RELEASE HISTORY */
73 /* */
74 /* DATE NAME DESCRIPTION */
75 /* */
76 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
77 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
78 /* resulting in version 6.1 */
79 /* */
80 /**************************************************************************/
_gx_pixelmap_slider_draw(GX_PIXELMAP_SLIDER * slider)81 VOID _gx_pixelmap_slider_draw(GX_PIXELMAP_SLIDER *slider)
82 {
83 GX_PIXELMAP *map;
84 GX_PIXELMAP *uppermap;
85 GX_RECTANGLE fillrect;
86 GX_SLIDER_INFO *info;
87 GX_PIXELMAP_SLIDER_INFO *pixinfo;
88 GX_VALUE space;
89 GX_RECTANGLE needle_size;
90
91 info = &slider -> gx_slider_info;
92 pixinfo = &slider -> gx_pixelmap_slider_pixelmap_info;
93
94 _gx_context_pixelmap_get(pixinfo -> gx_pixelmap_slider_info_lower_background_pixelmap, &map);
95 _gx_context_pixelmap_get(pixinfo -> gx_pixelmap_slider_info_upper_background_pixelmap, &uppermap);
96 _gx_slider_needle_position_get((GX_SLIDER *)slider, info, &needle_size);
97 _gx_widget_context_fill_set((GX_WIDGET *)slider);
98
99 if ((slider -> gx_widget_style & GX_STYLE_TILE_BACKGROUND) && map && uppermap)
100 {
101 if (slider -> gx_widget_style & GX_STYLE_SLIDER_VERTICAL)
102 {
103 _gx_widget_width_get((GX_WIDGET *)slider, &space);
104 space = (GX_VALUE)(space - map -> gx_pixelmap_width);
105 space /= 2;
106 fillrect.gx_rectangle_top = slider -> gx_widget_size.gx_rectangle_top;
107 fillrect.gx_rectangle_left = (GX_VALUE)(slider -> gx_widget_size.gx_rectangle_left + space);
108 fillrect.gx_rectangle_right = (GX_VALUE)(fillrect.gx_rectangle_left + map -> gx_pixelmap_width - 1);
109 fillrect.gx_rectangle_bottom = (GX_VALUE)(needle_size.gx_rectangle_top + info -> gx_slider_info_needle_hotspot_offset);
110 _gx_canvas_pixelmap_tile(&fillrect, uppermap);
111
112 fillrect.gx_rectangle_top = (GX_VALUE)(fillrect.gx_rectangle_bottom + 1);
113 fillrect.gx_rectangle_bottom = slider -> gx_widget_size.gx_rectangle_bottom;
114 _gx_canvas_pixelmap_tile(&fillrect, map);
115 }
116 else
117 {
118 _gx_widget_height_get((GX_WIDGET *)slider, &space);
119 space = (GX_VALUE)(space - map -> gx_pixelmap_height);
120 space /= 2;
121 fillrect.gx_rectangle_top = (GX_VALUE)(slider -> gx_widget_size.gx_rectangle_top + space);
122 fillrect.gx_rectangle_left = slider -> gx_widget_size.gx_rectangle_left;
123 fillrect.gx_rectangle_right = (GX_VALUE)(needle_size.gx_rectangle_left + info -> gx_slider_info_needle_hotspot_offset);
124 fillrect.gx_rectangle_bottom = (GX_VALUE)(fillrect.gx_rectangle_top + map -> gx_pixelmap_height - 1);
125 _gx_canvas_pixelmap_tile(&fillrect, map);
126
127 fillrect.gx_rectangle_left = (GX_VALUE)(fillrect.gx_rectangle_right + 1);
128 fillrect.gx_rectangle_right = slider -> gx_widget_size.gx_rectangle_right;
129 _gx_canvas_pixelmap_tile(&fillrect, uppermap);
130 }
131 }
132 else
133 {
134 if (map)
135 {
136 if (slider -> gx_widget_style & GX_STYLE_TILE_BACKGROUND)
137 {
138 _gx_canvas_pixelmap_tile(&slider -> gx_widget_size, map);
139 }
140 else
141 {
142 _gx_canvas_pixelmap_draw(slider -> gx_widget_size.gx_rectangle_left,
143 slider -> gx_widget_size.gx_rectangle_top, map);
144 }
145 }
146 else
147 {
148 if (!(slider -> gx_widget_style & GX_STYLE_TRANSPARENT))
149 {
150 _gx_widget_background_draw((GX_WIDGET *)slider);
151 }
152 }
153 }
154
155 /* Pick up needle pixelmap. */
156 _gx_context_pixelmap_get(pixinfo -> gx_pixelmap_slider_info_needle_pixelmap, &map);
157
158 if (map)
159 {
160 /* Draw needle pixelmap. */
161 _gx_canvas_pixelmap_draw(needle_size.gx_rectangle_left, needle_size.gx_rectangle_top, map);
162 }
163
164 _gx_widget_children_draw((GX_WIDGET *)slider);
165 }
166
167
