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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_canvas.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_tickmarks_draw 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 draws the slider tickmarks. */ |
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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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/* */ |
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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_slider_travel_get Get the slider travel */ |
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/* _gx_context_line_color_set Set the line color for the */ |
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/* drawing context */ |
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/* _gx_context_brush_width_set Set the brush width for the */ |
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/* drawing context */ |
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/* _gx_canvas_line_draw Draw a line */ |
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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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123845 |
VOID _gx_slider_tickmarks_draw(GX_SLIDER *slider) |
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{ |
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INT mintravel; |
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INT maxtravel; |
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INT tickstart; |
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INT tickend; |
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INT space; |
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GX_FIXED_VAL tickpos; |
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INT tickcount; |
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GX_SLIDER_INFO *info; |
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✓✓ |
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if (slider -> gx_slider_tick_count <= 1) |
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{ |
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return; |
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} |
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/* make a border 1/8 of widget size around ticksmarks */ |
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✓✓ |
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if (slider -> gx_widget_style & GX_STYLE_SLIDER_VERTICAL) |
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{ |
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mintravel = slider -> gx_widget_size.gx_rectangle_left; |
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maxtravel = slider -> gx_widget_size.gx_rectangle_right; |
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space = (maxtravel - mintravel) / 8; |
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/* draw left in */ |
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tickend = (maxtravel + mintravel) / 2; |
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tickend -= space; |
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tickstart = mintravel + space; |
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} |
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else |
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{ |
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mintravel = slider -> gx_widget_size.gx_rectangle_top; |
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maxtravel = slider -> gx_widget_size.gx_rectangle_bottom; |
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space = (maxtravel - mintravel) / 8; |
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/* draw ticks from center down */ |
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tickend = maxtravel - space; |
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tickstart = (maxtravel + mintravel) / 2; |
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tickstart += space; |
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} |
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/* pick up pointer to slider info struct */ |
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info = &slider -> gx_slider_info; |
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/* get the limits of the slider travel */ |
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_gx_slider_travel_get(slider, info, &mintravel, &maxtravel); |
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tickcount = slider -> gx_slider_tick_count; |
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space = GX_FIXED_VAL_MAKE(maxtravel - mintravel) / (tickcount - 1); |
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/* set line color */ |
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_gx_context_line_color_set(slider -> gx_slider_tick_color); |
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_gx_context_brush_width_set(1); |
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tickpos = GX_FIXED_VAL_MAKE(mintravel); |
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✓✓ |
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while (tickcount > 0) |
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{ |
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mintravel = GX_FIXED_VAL_RND(tickpos); |
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✓✓ |
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if (slider -> gx_widget_style & GX_STYLE_SLIDER_VERTICAL) |
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{ |
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_gx_canvas_line_draw((GX_VALUE)tickstart, (GX_VALUE)mintravel, (GX_VALUE)tickend, (GX_VALUE)mintravel); |
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} |
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else |
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{ |
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_gx_canvas_line_draw((GX_VALUE)mintravel, (GX_VALUE)tickstart, (GX_VALUE)mintravel, (GX_VALUE)tickend); |
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} |
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tickpos += space; |
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tickcount--; |
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} |
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} |
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