GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gx_rich_text_view_text_total_height_calculate.c Lines: 34 34 100.0 %
Date: 2024-12-05 08:52:37 Branches: 8 8 100.0 %

Line Branch Exec Source
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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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/**   Rich Text View Management (Rich Text View)                          */
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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_widget.h"
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#include "gx_system.h"
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#include "gx_window.h"
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#include "gx_rich_text_view.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_rich_text_view_text_total_height_calculate      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 calculates rich text view text total height.          */
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/*                                                                        */
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/*  INPUT                                                                 */
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/*                                                                        */
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/*    text_view                             Multi line text view          */
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/*                                            control block               */
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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_utility_rectangle_resize          Resize rectangle              */
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/*    _gx_widget_string_get_ext             Detect and process rich text  */
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/*                                            tag                         */
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/*    _gx_widget_font_get                   Retrieve font by id           */
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/*    _gx_utility_utf8_string_character_get Retrieve glyph length         */
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/*    _gx_system_string_width_get           Get string width              */
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/*                                                                        */
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/*  CALLED BY                                                             */
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/*                                                                        */
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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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/*  09-30-2020     Kenneth Maxwell          Initial Version 6.1           */
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/*                                                                        */
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/**************************************************************************/
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UINT _gx_rich_text_view_text_total_height_calculate(GX_RICH_TEXT_VIEW *text_view)
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{
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GX_STRING              text;
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GX_FONT               *font;
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GX_RICH_TEXT_LINE_INFO line_info;
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GX_RICH_TEXT_FORMAT    format;
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GX_VALUE               client_width;
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GX_RECTANGLE           client;
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INT                    total_height = 0;
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    if (!text_view -> gx_multi_line_text_view_text.gx_string_length)
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    {
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        text_view -> gx_rich_text_view_text_total_height = 0;
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        text_view -> gx_multi_line_text_view_line_index_old = GX_FALSE;
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        return GX_SUCCESS;
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    }
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    /* Pick up client retangle. */
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    client = text_view -> gx_window_client;
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    /* Offset client area by the size of whitespace.  */
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    _gx_utility_rectangle_resize(&client, (GX_VALUE)(-text_view -> gx_multi_line_text_view_whitespace));
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    /* Calculate text display width. */
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    client_width = (GX_VALUE)(client.gx_rectangle_right - client.gx_rectangle_left - 1);
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    /* Set default draw style. */
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    format.gx_rich_text_font_id = text_view -> gx_rich_text_view_fonts.gx_rich_text_fonts_normal_id;
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    format.gx_rich_text_flags = 0;
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    /* Pick up text for drawing. */
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    if (text_view -> gx_multi_line_text_view_text_id)
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    {
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        _gx_widget_string_get_ext((GX_WIDGET *)text_view, text_view -> gx_multi_line_text_view_text_id, &text);
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    }
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    else
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    {
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        _gx_system_private_string_get(&text_view -> gx_multi_line_text_view_text, &text, text_view -> gx_widget_style);
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    }
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    /* Calculate the total rows of text view string. */
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    while (text.gx_string_length > 0)
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    {
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        /* Pickup draw font. */
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        _gx_widget_font_get((GX_WIDGET *)text_view, format.gx_rich_text_font_id, &font);
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        if (!font)
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        {
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            return GX_INVALID_FONT;
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        }
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        line_info.gx_rich_text_line_info_text.gx_string_ptr = text.gx_string_ptr;
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        line_info.gx_rich_text_line_info_text.gx_string_length = 0;
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        line_info.gx_rich_text_line_info_start_format = format;
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        line_info.gx_rich_text_line_info_end_format = format;
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        line_info.gx_rich_text_line_info_line_height = font -> gx_font_line_height;
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        line_info.gx_rich_text_line_info_text_width = 0;
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        _gx_rich_text_view_line_info_get(text_view, text, &line_info, client_width);
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        total_height += line_info.gx_rich_text_line_info_line_height;
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        total_height += text_view -> gx_multi_line_text_view_line_space;
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        format = line_info.gx_rich_text_line_info_end_format;
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        text.gx_string_ptr += line_info.gx_rich_text_line_info_text.gx_string_length;
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        text.gx_string_length -= line_info.gx_rich_text_line_info_text.gx_string_length;
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    }
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    _gx_rich_text_view_context_reset();
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    text_view -> gx_rich_text_view_text_total_height = (UINT)total_height;
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    text_view -> gx_multi_line_text_view_line_index_old = GX_FALSE;
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    return GX_SUCCESS;
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}
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