GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gx_single_line_text_input_right_arrow.c Lines: 69 69 100.0 %
Date: 2026-03-06 19:21:09 Branches: 32 32 100.0 %

Line Branch Exec Source
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/***************************************************************************
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 * Copyright (c) 2024 Microsoft Corporation
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 * Copyright (c) 2026-present Eclipse ThreadX contributors
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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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#include "gx_text_input_cursor.h"
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#include "gx_utility.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_right_arrow              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 moves the text input cursor one character position to  */
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/*    the right.                                                          */
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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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/*    None                                                                */
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/*                                                                        */
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/*  CALLS                                                                 */
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/*                                                                        */
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/*    _gx_widget_font_get                   Get the font of the text      */
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/*    _gx_widget_border_width_get           Get the widget border width   */
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/*    _gx_widget_client_get                 Get widget client rectangle   */
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/*    _gx_system_string_width_get           Get the width of a string     */
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/*    _gx_system_dirty_partial_add          Mark the specified area of    */
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/*                                            a widget as dirty           */
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/*    _gx_system_dirty_mark                 Mark the widget as dirty      */
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/*    _gx_text_input_cursor_dirty_rectangle_get                           */
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/*                                          Get cursor rectangle          */
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/*    _gx_utility_utf8_string_character_get Parse utf8 string to          */
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/*                                            multi-byte glyph            */
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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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/**************************************************************************/
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6431
UINT _gx_single_line_text_input_right_arrow(GX_SINGLE_LINE_TEXT_INPUT *text_input)
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{
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GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
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GX_CHAR              *string_buffer = text_input -> gx_single_line_text_input_buffer;
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UINT                  string_size = text_input -> gx_single_line_text_input_string_size;
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UINT                  insert_pos;
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GX_VALUE              new_cursor_pos;
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GX_VALUE              old_cursor_pos;
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GX_VALUE              width;
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GX_FONT              *gx_font;
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GX_RECTANGLE          client;
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GX_RECTANGLE          cursor_rect;
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UINT                  glyph_len = 1;
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UINT                  start_mark = text_input -> gx_single_line_text_input_start_mark;
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UINT                  end_mark = text_input -> gx_single_line_text_input_end_mark;
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GX_BOOL               mark_all = GX_FALSE;
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GX_STRING             string;
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    /* Pick up widget border width. */
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    _gx_widget_border_width_get((GX_WIDGET *)text_input, &width);
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    /* Get widget client rectangle. */
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    _gx_widget_client_get((GX_WIDGET *)text_input, width, &client);
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    old_cursor_pos = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
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    new_cursor_pos = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
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    if (start_mark != end_mark)
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    {
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        text_input -> gx_single_line_text_input_start_mark = 0;
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        text_input -> gx_single_line_text_input_end_mark = 0;
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        if (end_mark > start_mark)
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        {
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            if (((new_cursor_pos > client.gx_rectangle_left) &&
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                 (new_cursor_pos < client.gx_rectangle_right)) ||
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                ((text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK) == GX_STYLE_TEXT_CENTER))
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            {
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                /* No need to update cursor position, just need mark
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                   cursor and highlight area as dirty. */
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                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &cursor_rect);
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                _gx_single_line_text_input_text_rectangle_get(text_input, (INT)(start_mark - end_mark), &client);
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                /* Combine cursor rect and highlight area. */
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                _gx_utility_rectangle_combine(&client, &cursor_rect);
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                return _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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            }
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        }
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    }
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    insert_pos = text_input -> gx_single_line_text_input_insert_pos;
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    /* Update cursor position and offset in x-axis.  */
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    if ((insert_pos < string_size) ||
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        (end_mark > start_mark))
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    {
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        if (start_mark >= end_mark)
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        {
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            string.gx_string_ptr = string_buffer + insert_pos;
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            /* Calculate new cursor position. */
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            if (start_mark != end_mark)
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            {
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                glyph_len = start_mark - end_mark;
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            }
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#ifdef GX_UTF8_SUPPORT
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            else
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            {
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                string.gx_string_length = string_size - insert_pos;
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                _gx_utility_utf8_string_character_get(&string, GX_NULL, &glyph_len);
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            }
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#endif
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            text_input -> gx_single_line_text_input_insert_pos += glyph_len;
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            /* Calculate cursor position. */
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            _gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);
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            string.gx_string_ptr = string_buffer + insert_pos;
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            string.gx_string_length = glyph_len;
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            _gx_system_string_width_get_ext(gx_font, &string, &width);
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            new_cursor_pos = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x + width);
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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_CENTER:
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            if (start_mark == end_mark)
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            {
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                /* No need to update text input x offset, mark old and new cursor position area as dirty.  */
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                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
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                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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            }
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            cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = new_cursor_pos;
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            _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
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            _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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            break;
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        case GX_STYLE_TEXT_RIGHT:
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        case GX_STYLE_TEXT_LEFT:
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        default:
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            if (new_cursor_pos > client.gx_rectangle_right - 1)
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            {
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                /* Cursor position is out of client rectangle, update x offset. */
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                text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset +
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                                                                             new_cursor_pos - client.gx_rectangle_right + 1);
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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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                /* Should mark all widget as dirty.  */
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                mark_all = GX_TRUE;
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            }
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            else if (new_cursor_pos < client.gx_rectangle_left + 1)
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            {
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                /* Update text input x offset. */
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                text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset -
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                                                                             client.gx_rectangle_left - 1 + new_cursor_pos);
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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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                mark_all = GX_TRUE;
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            }
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            else
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            {
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                /* No need to update text input x offset, mark old and new cursor position area as dirty.  */
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                if (start_mark == end_mark)
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                {
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                    _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
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                    _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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                }
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                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = new_cursor_pos;
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                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
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                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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            }
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            break;
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        }
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        if ((!mark_all) && (start_mark != end_mark))
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        {
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            /* Mark highlight area as dirty. */
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            client.gx_rectangle_left = old_cursor_pos;
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            client.gx_rectangle_right = (GX_VALUE)(new_cursor_pos - 1);
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        }
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        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
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    }
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    return GX_SUCCESS;
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}
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