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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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/** Scroll Wheel Management (Scroll Wheel) */ |
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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_scroll_wheel.h" |
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#include "gx_system.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_scroll_wheel_selected_set PORTABLE C */ |
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/* 6.1.7 */ |
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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 sets the current selected row index for scroll wheel */ |
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/* widget. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* wheel Scroll wheel control block */ |
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/* row Selected row to be set */ |
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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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/* None */ |
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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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UINT _gx_scroll_wheel_selected_set(GX_SCROLL_WHEEL *wheel, INT row) |
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{ |
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INT dist; |
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✓✓✓✓
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if ((row < 0) || (wheel -> gx_scroll_wheel_total_rows == 0)) |
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{ |
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row = 0; |
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} |
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✓✓ |
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else if (row > wheel -> gx_scroll_wheel_total_rows - 1) |
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{ |
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row = wheel -> gx_scroll_wheel_total_rows - 1; |
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} |
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✓✓ |
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if (wheel -> gx_scroll_wheel_selected_row == row) |
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{ |
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return GX_SUCCESS; |
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} |
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✓✓ |
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if (wheel -> gx_widget_status & GX_STATUS_VISIBLE) |
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{ |
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✓✓ |
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if (wheel -> gx_scroll_wheel_wrap_style_check(wheel)) |
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{ |
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if (GX_ABS(wheel -> gx_scroll_wheel_selected_row - row) < |
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✓✓ |
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GX_ABS(wheel -> gx_scroll_wheel_selected_row + wheel -> gx_scroll_wheel_total_rows - row)) |
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{ |
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dist = wheel -> gx_scroll_wheel_selected_row - row; |
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} |
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else |
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{ |
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dist = wheel -> gx_scroll_wheel_selected_row + wheel -> gx_scroll_wheel_total_rows - row; |
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} |
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} |
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else |
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{ |
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dist = wheel -> gx_scroll_wheel_selected_row - row; |
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} |
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wheel -> gx_scroll_wheel_animation_steps = 10; |
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wheel -> gx_scroll_wheel_animation_speed = (GX_VALUE)(dist * wheel -> gx_scroll_wheel_row_height) / 10; |
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wheel -> gx_scroll_wheel_shift_error = (GX_BYTE)(dist * wheel -> gx_scroll_wheel_row_height) % 10; |
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_gx_system_timer_start((GX_WIDGET *)wheel, GX_ANIMATION_TIMER, 2, 2); |
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} |
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else |
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{ |
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wheel -> gx_scroll_wheel_selected_row = row; |
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} |
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return GX_SUCCESS; |
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} |
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