1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** GUIX Component */
17 /** */
18 /** Text Input Management (Multi Line Text Input) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_system.h"
29 #include "gx_widget.h"
30 #include "gx_multi_line_text_input.h"
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_multi_line_text_input_text_rectangle_get PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function retrieves the bounding box of specified text. */
45 /* */
46 /* INPUT */
47 /* */
48 /* input Multi-line text input widget */
49 /* control block */
50 /* start_index The start index of the */
51 /* specified text */
52 /* end_index The end index of the */
53 /* specified text */
54 /* rect Retrieved bounding rectangle */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* None */
59 /* */
60 /* CALLS */
61 /* */
62 /* _gx_system_dirty_mark Mark widget as drity */
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_multi_line_text_input_text_rectangle_get(GX_MULTI_LINE_TEXT_INPUT * input,GX_POINT start_cursor_pos,GX_POINT end_cursor_pos,GX_RECTANGLE * rect)73 UINT _gx_multi_line_text_input_text_rectangle_get(GX_MULTI_LINE_TEXT_INPUT *input, GX_POINT start_cursor_pos, GX_POINT end_cursor_pos, GX_RECTANGLE *rect)
74 {
75 GX_FONT *font;
76 GX_VALUE border_width;
77 GX_VALUE half_line_height;
78 GX_VALUE cursor_width;
79
80
81 /* Pick up font. */
82 _gx_widget_font_get((GX_WIDGET *)input, input -> gx_multi_line_text_view_font_id, &font);
83
84 if (!font)
85 {
86 return GX_FAILURE;
87 }
88
89 /* Pickup widget border width. */
90 _gx_widget_border_width_get((GX_WIDGET *)input, &border_width);
91
92 /* Get client rectangle. */
93 _gx_widget_client_get((GX_WIDGET *)input, border_width, rect);
94
95 half_line_height = (GX_VALUE)(font -> gx_font_line_height + input -> gx_multi_line_text_view_line_space);
96 half_line_height = (GX_VALUE)(half_line_height >> 1);
97
98 if (start_cursor_pos.gx_point_y == end_cursor_pos.gx_point_y)
99 {
100 if (start_cursor_pos.gx_point_x > end_cursor_pos.gx_point_x)
101 {
102 GX_SWAP_VALS(start_cursor_pos.gx_point_x, end_cursor_pos.gx_point_x);
103 }
104
105 cursor_width = input -> gx_multi_line_text_input_cursor_instance.gx_text_input_cursor_width;
106 rect -> gx_rectangle_top = (GX_VALUE)(start_cursor_pos.gx_point_y - half_line_height);
107 rect -> gx_rectangle_bottom = (GX_VALUE)(start_cursor_pos.gx_point_y + half_line_height);
108 rect -> gx_rectangle_left = (GX_VALUE)(start_cursor_pos.gx_point_x - (cursor_width >> 1));
109 rect -> gx_rectangle_right = (GX_VALUE)(end_cursor_pos.gx_point_x + ((cursor_width + 1) >> 1) - 1);
110 }
111 else
112 {
113 if (start_cursor_pos.gx_point_y > end_cursor_pos.gx_point_y)
114 {
115 GX_SWAP_VALS(start_cursor_pos.gx_point_y, end_cursor_pos.gx_point_y);
116 }
117 rect -> gx_rectangle_top = (GX_VALUE)(start_cursor_pos.gx_point_y - half_line_height);
118 rect -> gx_rectangle_bottom = (GX_VALUE)(end_cursor_pos.gx_point_y + half_line_height);
119 }
120
121 return GX_SUCCESS;
122 }
123
124
