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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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/** Text Input Management (Single 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_context.h" |
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#include "gx_system.h" |
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#include "gx_widget.h" |
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#include "gx_single_line_text_input.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_single_line_text_input_buffer_clear 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 service deletes all characters from the text input buffer. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* text_input Single-line text input widget */ |
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/* control block */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* status Completion status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_widget_border_width_get Get the widget border width */ |
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/* _gx_widget_client_get Get the client rectangle */ |
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/* _gx_system_dirty_mark Mark the widget area as dirty */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* GUIX Internal Code */ |
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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_single_line_text_input_buffer_clear(GX_SINGLE_LINE_TEXT_INPUT *text_input) |
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{ |
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GX_TEXT_INPUT_CURSOR *cursor_ptr; |
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GX_RECTANGLE client; |
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GX_VALUE client_width; |
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GX_VALUE border_width; |
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cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance; |
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/* Calculate the widget width for showing text. */ |
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_gx_widget_border_width_get((GX_WIDGET *)text_input, &border_width); |
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_gx_widget_client_get((GX_WIDGET *)text_input, border_width, &client); |
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client_width = (GX_VALUE)(client.gx_rectangle_right - client.gx_rectangle_left + 1); |
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/* Update the value of cursor position and xoffset. */ |
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✓✓✓ |
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switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK) |
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{ |
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case GX_STYLE_TEXT_RIGHT: |
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text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(3 - client_width); |
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cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_right - 1); |
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break; |
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case GX_STYLE_TEXT_CENTER: |
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text_input -> gx_single_line_text_input_xoffset = (client_width >> 1); |
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cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_left + (client_width >> 1) + 1); |
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break; |
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case GX_STYLE_TEXT_LEFT: |
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default: |
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text_input -> gx_single_line_text_input_xoffset = 0; |
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cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_left + 1); |
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break; |
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} |
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/* Reset the value of cursor position. */ |
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text_input -> gx_single_line_text_input_buffer[0] = '\0'; |
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text_input -> gx_single_line_text_input_string_size = 0; |
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text_input -> gx_single_line_text_input_insert_pos = 0; |
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/* Mark the widget area dirty. */ |
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_gx_system_dirty_mark((GX_WIDGET *)text_input); |
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return GX_SUCCESS; |
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} |
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