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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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/** Slider Management (Slider) */ |
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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_display.h" |
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#include "gx_context.h" |
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#include "gx_widget.h" |
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#include "gx_utility.h" |
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#include "gx_slider.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_slider_value_set 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 sets the slider value. */ |
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/* */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* slider Slider widget control block */ |
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/* info Pointer to slider info */ |
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/* new_value New slider value */ |
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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_slider_needle_position_get Get the slider needle */ |
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/* position */ |
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/* _gx_utility_rectangle_combine Combine the first and second */ |
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/* rectangle into the first */ |
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/* rectangle */ |
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/* _gx_system_dirty_partial_add Mark the partial area of this */ |
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/* widget as dirty */ |
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/* _gx_widget_event_generate Generate an event and send it */ |
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/* to the parent widget */ |
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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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11201 |
UINT _gx_slider_value_set(GX_SLIDER *slider, GX_SLIDER_INFO *info, INT new_value) |
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{ |
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GX_RECTANGLE oldpos; |
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GX_RECTANGLE newpos; |
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✓✓ |
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if (new_value != info -> gx_slider_info_current_val) |
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{ |
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/* get the old need position */ |
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_gx_slider_needle_position_get(slider, info, &oldpos); |
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/* assign slider value */ |
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info -> gx_slider_info_current_val = new_value; |
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/* get the new needle position */ |
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_gx_slider_needle_position_get(slider, info, &newpos); |
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/* combine old and new needle positions */ |
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_gx_utility_rectangle_combine(&newpos, &oldpos); |
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✓✓ |
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if (slider -> gx_widget_type == GX_TYPE_PIXELMAP_SLIDER) |
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{ |
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newpos.gx_rectangle_left = slider -> gx_widget_size.gx_rectangle_left; |
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newpos.gx_rectangle_right = slider -> gx_widget_size.gx_rectangle_right; |
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} |
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/* mark as dirty so that I get redrawn */ |
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_gx_system_dirty_partial_add((GX_WIDGET *)slider, &newpos); |
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/* notify my parent of my new value */ |
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_gx_widget_event_generate((GX_WIDGET *)slider, GX_EVENT_SLIDER_VALUE, new_value); |
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} |
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return(GX_SUCCESS); |
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} |
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