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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** Multi Line Text Input */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_system.h" |
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#include "gx_multi_line_text_input.h" |
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#include "gx_multi_line_text_view.h" |
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#include "gx_text_input_cursor.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_multi_line_text_input_home PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function move the cursor to the position */ |
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/* before the first character. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* text_input Multi line text input */ |
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/* control block */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_multi_line_text_input_cursor_pos_calculate */ |
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/* Calculate cursor position */ |
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/* according to click point */ |
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/* _gx_multi_line_text_input_cursor_rectangle_define */ |
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/* Define a rectangle for the */ |
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/* cursor */ |
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/* _gx_system_dirty_partial_add Add one dirty area to */ |
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/* dirty list */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_multi_line_text_input_keydown_process */ |
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/* */ |
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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
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/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
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/* resulting in version 6.1 */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_multi_line_text_input_home(GX_MULTI_LINE_TEXT_INPUT *text_input) |
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{ |
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GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_multi_line_text_input_cursor_instance; |
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GX_POINT cur_pos; |
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GX_RECTANGLE cur_rect; |
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✓✓ |
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if (text_input -> gx_multi_line_text_input_start_mark != text_input -> gx_multi_line_text_input_end_mark) |
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{ |
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_gx_multi_line_text_input_left_arrow(text_input); |
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} |
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cur_pos = cursor_ptr -> gx_text_input_cursor_pos; |
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_gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect); |
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cur_pos.gx_point_x = (GX_VALUE)(text_input -> gx_window_client.gx_rectangle_left + |
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text_input -> gx_multi_line_text_view_whitespace); |
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/* Calculate new cursor position. */ |
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_gx_multi_line_text_input_cursor_pos_calculate(text_input, cur_pos); |
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✓✓ |
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if (cur_rect.gx_rectangle_left != cursor_ptr -> gx_text_input_cursor_pos.gx_point_x) |
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{ |
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/* Mark old cursor rectangle dirty. */ |
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_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect); |
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/* Mark new cursor rectangle dirty. */ |
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_gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect); |
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_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect); |
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} |
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return GX_SUCCESS; |
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} |
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