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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 (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_widget.h" |
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#include "gx_multi_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_multi_line_text_input_text_rectangle_get 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 retrieves the bounding box of specified text. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* input Multi-line text input widget */ |
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/* control block */ |
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/* start_index The start index of the */ |
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/* specified text */ |
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/* end_index The end index of the */ |
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/* specified text */ |
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/* rect Retrieved bounding rectangle */ |
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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_system_dirty_mark Mark widget as drity */ |
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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_text_rectangle_get(GX_MULTI_LINE_TEXT_INPUT *input, GX_POINT start_cursor_pos, GX_POINT end_cursor_pos, GX_RECTANGLE *rect) |
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{ |
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GX_FONT *font; |
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GX_VALUE border_width; |
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GX_VALUE half_line_height; |
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GX_VALUE cursor_width; |
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/* Pick up font. */ |
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_gx_widget_font_get((GX_WIDGET *)input, input -> gx_multi_line_text_view_font_id, &font); |
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✓✓ |
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if (!font) |
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{ |
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return GX_FAILURE; |
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} |
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/* Pickup widget border width. */ |
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_gx_widget_border_width_get((GX_WIDGET *)input, &border_width); |
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/* Get client rectangle. */ |
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_gx_widget_client_get((GX_WIDGET *)input, border_width, rect); |
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half_line_height = (GX_VALUE)(font -> gx_font_line_height + input -> gx_multi_line_text_view_line_space); |
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half_line_height = (GX_VALUE)(half_line_height >> 1); |
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✓✓ |
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if (start_cursor_pos.gx_point_y == end_cursor_pos.gx_point_y) |
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{ |
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✓✓ |
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if (start_cursor_pos.gx_point_x > end_cursor_pos.gx_point_x) |
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{ |
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GX_SWAP_VALS(start_cursor_pos.gx_point_x, end_cursor_pos.gx_point_x); |
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} |
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cursor_width = input -> gx_multi_line_text_input_cursor_instance.gx_text_input_cursor_width; |
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rect -> gx_rectangle_top = (GX_VALUE)(start_cursor_pos.gx_point_y - half_line_height); |
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rect -> gx_rectangle_bottom = (GX_VALUE)(start_cursor_pos.gx_point_y + half_line_height); |
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rect -> gx_rectangle_left = (GX_VALUE)(start_cursor_pos.gx_point_x - (cursor_width >> 1)); |
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rect -> gx_rectangle_right = (GX_VALUE)(end_cursor_pos.gx_point_x + ((cursor_width + 1) >> 1) - 1); |
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} |
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else |
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{ |
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✓✓ |
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if (start_cursor_pos.gx_point_y > end_cursor_pos.gx_point_y) |
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{ |
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GX_SWAP_VALS(start_cursor_pos.gx_point_y, end_cursor_pos.gx_point_y); |
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} |
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rect -> gx_rectangle_top = (GX_VALUE)(start_cursor_pos.gx_point_y - half_line_height); |
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rect -> gx_rectangle_bottom = (GX_VALUE)(end_cursor_pos.gx_point_y + half_line_height); |
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} |
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return GX_SUCCESS; |
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} |
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