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 /** 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_multi_line_text_input.h" 30 #include "gx_multi_line_text_view.h" 31 #include "gx_text_input_cursor.h" 32 33 /**************************************************************************/ 34 /* */ 35 /* FUNCTION RELEASE */ 36 /* */ 37 /* _gx_multi_line_text_input_mark_end PORTABLE C */ 38 /* 6.1 */ 39 /* AUTHOR */ 40 /* */ 41 /* Kenneth Maxwell, Microsoft Corporation */ 42 /* */ 43 /* DESCRIPTION */ 44 /* */ 45 /* This function moves the end mark of highligh text to the end */ 46 /* of the line. */ 47 /* */ 48 /* INPUT */ 49 /* */ 50 /* text_input Multi line text input */ 51 /* control block */ 52 /* */ 53 /* OUTPUT */ 54 /* */ 55 /* None */ 56 /* */ 57 /* CALLS */ 58 /* */ 59 /* _gx_text_input_cursor_dirty_rectangle_get */ 60 /* Retrieve cursor rectangle */ 61 /* _gx_multi_line_text_input_cursor_pos_calculate */ 62 /* Calculate cursor position */ 63 /* according to click point */ 64 /* _gx_multi_line_text_input_text_rectangle_get */ 65 /* Retrieve text rectangle */ 66 /* between specified positions */ 67 /* _gx_system_dirty_partial_add Mark specified area dirty */ 68 /* _gx_system_dirty_mark Mark specified widget dirty */ 69 /* */ 70 /* CALLED BY */ 71 /* */ 72 /* _gx_multi_line_text_input_keydown_process */ 73 /* */ 74 /* RELEASE HISTORY */ 75 /* */ 76 /* DATE NAME DESCRIPTION */ 77 /* */ 78 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ 79 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */ 80 /* resulting in version 6.1 */ 81 /* */ 82 /**************************************************************************/ _gx_multi_line_text_input_mark_end(GX_MULTI_LINE_TEXT_INPUT * text_input)83UINT _gx_multi_line_text_input_mark_end(GX_MULTI_LINE_TEXT_INPUT *text_input) 84 { 85 GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_multi_line_text_input_cursor_instance; 86 GX_POINT old_cursor_pos; 87 GX_POINT cursor_pos; 88 GX_RECTANGLE cursor_rect; 89 INT shift; 90 UINT start_mark = text_input -> gx_multi_line_text_input_start_mark; 91 UINT end_mark = text_input -> gx_multi_line_text_input_end_mark; 92 93 old_cursor_pos = cursor_ptr -> gx_text_input_cursor_pos; 94 if (start_mark == end_mark) 95 { 96 start_mark = text_input -> gx_multi_line_text_input_text_insert_position; 97 end_mark = text_input -> gx_multi_line_text_input_text_insert_position; 98 99 text_input -> gx_multi_line_text_input_start_mark = start_mark; 100 text_input -> gx_multi_line_text_input_end_mark = end_mark; 101 } 102 103 cursor_pos = old_cursor_pos; 104 cursor_pos.gx_point_x = (GX_VALUE)(text_input -> gx_window_client.gx_rectangle_right - 105 text_input -> gx_multi_line_text_view_whitespace); 106 107 shift = text_input -> gx_multi_line_text_view_text_scroll_shift; 108 109 /* Calculate new cursor position. */ 110 _gx_multi_line_text_input_cursor_pos_calculate(text_input, cursor_pos); 111 112 text_input -> gx_multi_line_text_input_end_mark = text_input -> gx_multi_line_text_input_text_insert_position; 113 if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift) 114 { 115 _gx_multi_line_text_input_text_rectangle_get(text_input, old_cursor_pos, cursor_ptr -> gx_text_input_cursor_pos, &cursor_rect); 116 117 /* Mark highlight area as dirty. */ 118 _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cursor_rect); 119 } 120 else 121 { 122 _gx_system_dirty_mark((GX_WIDGET *)text_input); 123 } 124 125 return GX_SUCCESS; 126 } 127 128
