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 /** Multi Line Text View Management (Multi Line Text View) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_widget.h"
28 #include "gx_window.h"
29 #include "gx_multi_line_text_view.h"
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _gx_multi_line_text_view_create PORTABLE C */
36 /* 6.1 */
37 /* AUTHOR */
38 /* */
39 /* Kenneth Maxwell, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function creates a multi-line text view widget. */
44 /* */
45 /* INPUT */
46 /* */
47 /* text_view Multi-line text view widget */
48 /* control block */
49 /* name Name of the text input widget */
50 /* parent Pointer to parent widget */
51 /* text_id Resource ID of the text string*/
52 /* style Style of text view widget */
53 /* id Application-defined ID of text*/
54 /* view */
55 /* size Dimension of text view widget */
56 /* */
57 /* OUTPUT */
58 /* */
59 /* status Completion status */
60 /* */
61 /* CALLS */
62 /* */
63 /* _gx_window_create Create the window */
64 /* _gx_widget_link Link the widget to its parent */
65 /* */
66 /* CALLED BY */
67 /* */
68 /* Application Code */
69 /* */
70 /* RELEASE HISTORY */
71 /* */
72 /* DATE NAME DESCRIPTION */
73 /* */
74 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
75 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
76 /* added logic to init new */
77 /* structure member for */
78 /* dynamic bidi text support, */
79 /* fixed compiler warnings, */
80 /* resulting in version 6.1 */
81 /* */
82 /**************************************************************************/
_gx_multi_line_text_view_create(GX_MULTI_LINE_TEXT_VIEW * text_view,GX_CONST GX_CHAR * name,GX_WIDGET * parent,GX_RESOURCE_ID text_id,ULONG style,USHORT id,GX_CONST GX_RECTANGLE * size)83 UINT _gx_multi_line_text_view_create(GX_MULTI_LINE_TEXT_VIEW *text_view,
84 GX_CONST GX_CHAR *name,
85 GX_WIDGET *parent,
86 GX_RESOURCE_ID text_id,
87 ULONG style,
88 USHORT id,
89 GX_CONST GX_RECTANGLE *size)
90 {
91
92 /* Call the window create function. */
93 _gx_window_create((GX_WINDOW *)text_view, name, GX_NULL, style, id, size);
94
95 text_view -> gx_widget_type = GX_TYPE_MULTI_LINE_TEXT_VIEW;
96 text_view -> gx_widget_normal_fill_color = GX_COLOR_ID_TEXT_INPUT_FILL;
97 text_view -> gx_multi_line_text_view_normal_text_color = GX_COLOR_ID_TEXT_INPUT_TEXT;
98 text_view -> gx_multi_line_text_view_selected_text_color = GX_COLOR_ID_TEXT_INPUT_TEXT;
99 text_view -> gx_multi_line_text_view_disabled_text_color = GX_COLOR_ID_DISABLED_TEXT;
100 text_view -> gx_widget_draw_function = (VOID (*)(GX_WIDGET *))_gx_multi_line_text_view_draw;
101 text_view -> gx_widget_event_process_function = (UINT (*)(GX_WIDGET *, GX_EVENT *))_gx_multi_line_text_view_event_process;
102 text_view -> gx_window_scroll_info_get = (VOID (*)(struct GX_WINDOW_STRUCT *, ULONG, GX_SCROLL_INFO *))(void (*)(void))_gx_multi_line_text_view_scroll_info_get;
103 text_view -> gx_multi_line_text_view_text_id = text_id;
104 text_view -> gx_multi_line_text_view_font_id = GX_FONT_ID_TEXT_INPUT;
105 text_view -> gx_multi_line_text_view_text.gx_string_ptr = GX_NULL;
106 text_view -> gx_multi_line_text_view_text.gx_string_length = 0;
107 text_view -> gx_multi_line_text_view_text_scroll_shift = 0;
108 text_view -> gx_multi_line_text_view_text_total_rows = 0;
109 text_view -> gx_multi_line_text_view_text_visible_rows = 0;
110 text_view -> gx_multi_line_text_view_whitespace = 0;
111 text_view -> gx_multi_line_text_view_line_space = 0;
112 text_view -> gx_multi_line_text_view_line_index_old = GX_TRUE;
113 text_view -> gx_multi_line_text_view_first_cache_line = 0;
114 text_view -> gx_multi_line_text_view_cache_size = 0;
115
116 #if defined(GX_DYNAMIC_BIDI_TEXT_SUPPORT)
117 text_view -> gx_multi_line_text_view_bidi_resolved_text_info = GX_NULL;
118 #endif
119
120 text_view -> gx_widget_status |= GX_STATUS_RESIZE_NOTIFY;
121
122 memset(text_view -> gx_multi_line_text_view_line_index, 0, GX_MULTI_LINE_INDEX_CACHE_SIZE * sizeof(UINT));
123
124 /* Determine if a parent widget was provided. */
125 if (parent)
126 {
127 _gx_widget_link(parent, (GX_WIDGET *)text_view);
128 }
129
130 /* Return the error status from window create. */
131 return(GX_SUCCESS);
132 }
133
134
