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 (Single 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_single_line_text_input.h"
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_single_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 from the current cursor */
45 /* position to the specified offset position. */
46 /* */
47 /* INPUT */
48 /* */
49 /* text_input Single-line text input widget */
50 /* control block */
51 /* offset_index Index offset to the current */
52 /* cursor position */
53 /* rect Retrieved bounding rectangle */
54 /* */
55 /* OUTPUT */
56 /* */
57 /* Completion status */
58 /* */
59 /* CALLS */
60 /* */
61 /* _gx_system_dirty_mark Mark widget as drity */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
68 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
69 /* resulting in version 6.1 */
70 /* */
71 /**************************************************************************/
_gx_single_line_text_input_text_rectangle_get(GX_SINGLE_LINE_TEXT_INPUT * input,INT offset_index,GX_RECTANGLE * rect)72 UINT _gx_single_line_text_input_text_rectangle_get(GX_SINGLE_LINE_TEXT_INPUT *input, INT offset_index, GX_RECTANGLE *rect)
73 {
74 GX_TEXT_INPUT_CURSOR *cursor = &input -> gx_single_line_text_input_cursor_instance;
75 GX_FONT *font;
76 GX_VALUE text_width;
77 GX_VALUE border_width;
78 INT start_index;
79 INT end_index;
80 GX_STRING string;
81
82 if (offset_index == 0)
83 {
84 return GX_FAILURE;
85 }
86
87 if (offset_index > 0)
88 {
89 start_index = (INT)input -> gx_single_line_text_input_insert_pos;
90 end_index = start_index + offset_index;
91 }
92 else
93 {
94 start_index = (INT)input -> gx_single_line_text_input_insert_pos + (INT)offset_index;
95 end_index = (INT)(input -> gx_single_line_text_input_insert_pos);
96 }
97
98 /* Pick up font. */
99 _gx_widget_font_get((GX_WIDGET *)input, input -> gx_prompt_font_id, &font);
100
101 /* Get the width of specified text. */
102 string.gx_string_ptr = input -> gx_single_line_text_input_buffer + start_index;
103 string.gx_string_length = (UINT)(end_index - start_index);
104 _gx_system_string_width_get_ext(font, &string, &text_width);
105
106 /* Pickup widget border width. */
107 _gx_widget_border_width_get((GX_WIDGET *)input, &border_width);
108
109 /* Get client rectangle. */
110 _gx_widget_client_get((GX_WIDGET *)input, border_width, rect);
111
112 if (offset_index > 0)
113 {
114 rect -> gx_rectangle_left = cursor -> gx_text_input_cursor_pos.gx_point_x;
115 rect -> gx_rectangle_right = (GX_VALUE)(rect -> gx_rectangle_left + text_width - 1);
116 }
117 else
118 {
119 rect -> gx_rectangle_right = (GX_VALUE)(cursor -> gx_text_input_cursor_pos.gx_point_x - 1);
120 rect -> gx_rectangle_left = (GX_VALUE)(rect -> gx_rectangle_right - text_width);
121 }
122
123 return GX_SUCCESS;
124 }
125
126
