1 /*************************************************************************** 2 * Copyright (c) 2024 Microsoft Corporation 3 * 4 * This program and the accompanying materials are made available under the 5 * terms of the MIT License which is available at 6 * https://opensource.org/licenses/MIT. 7 * 8 * SPDX-License-Identifier: MIT 9 **************************************************************************/ 10 11 12 /**************************************************************************/ 13 /**************************************************************************/ 14 /** */ 15 /** GUIX Component */ 16 /** */ 17 /** Button Management (Button) */ 18 /** */ 19 /**************************************************************************/ 20 21 #define GX_SOURCE_CODE 22 23 24 /* Include necessary system files. */ 25 26 #include "gx_api.h" 27 #include "gx_system.h" 28 #include "gx_canvas.h" 29 #include "gx_context.h" 30 #include "gx_widget.h" 31 #include "gx_button.h" 32 33 34 /**************************************************************************/ 35 /* */ 36 /* FUNCTION RELEASE */ 37 /* */ 38 /* _gx_pixelmap_button_draw PORTABLE C */ 39 /* 6.1 */ 40 /* AUTHOR */ 41 /* */ 42 /* Kenneth Maxwell, Microsoft Corporation */ 43 /* */ 44 /* DESCRIPTION */ 45 /* */ 46 /* This function draws the specified button, which is a special type */ 47 /* of widget. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* button Button control block */ 52 /* */ 53 /* OUTPUT */ 54 /* */ 55 /* None */ 56 /* */ 57 /* CALLS */ 58 /* */ 59 /* _gx_context_pixelmap_get Retrieve pixelmap image */ 60 /* _gx_canvas_pixelmap_draw Draw the pixelmap */ 61 /* _gx_button_draw Draw the button */ 62 /* _gx_widget_children_draw Draw children widgets */ 63 /* */ 64 /* CALLED BY */ 65 /* */ 66 /* Application Code */ 67 /* GUIX Internal Code */ 68 /* */ 69 /* RELEASE HISTORY */ 70 /* */ 71 /* DATE NAME DESCRIPTION */ 72 /* */ 73 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ 74 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */ 75 /* resulting in version 6.1 */ 76 /* */ 77 /**************************************************************************/ _gx_pixelmap_button_draw(GX_PIXELMAP_BUTTON * button)78VOID _gx_pixelmap_button_draw(GX_PIXELMAP_BUTTON *button) 79 { 80 GX_RESOURCE_ID pixelmap; 81 GX_PIXELMAP *map; 82 GX_WIDGET *widget = (GX_WIDGET *)button; 83 INT xpos; 84 INT ypos; 85 86 87 /* default to using the normal pixlemap */ 88 pixelmap = button -> gx_pixelmap_button_normal_id; 89 90 /* If the button is not enabled and the user provided 91 a disabled pixelmap, use that */ 92 if (button -> gx_pixelmap_button_disabled_id && 93 !(button -> gx_widget_style & GX_STYLE_ENABLED)) 94 { 95 pixelmap = button -> gx_pixelmap_button_disabled_id; 96 } 97 else 98 { 99 /* otherwise, if the button is pushed used the selected pixelmap */ 100 if (button -> gx_widget_style & GX_STYLE_BUTTON_PUSHED) 101 { 102 if (button -> gx_pixelmap_button_selected_id) 103 { 104 pixelmap = button -> gx_pixelmap_button_selected_id; 105 } 106 } 107 } 108 109 if (!(button -> gx_widget_style & GX_STYLE_ENABLED)) 110 { 111 if (button -> gx_pixelmap_button_disabled_id) 112 { 113 pixelmap = button -> gx_pixelmap_button_disabled_id; 114 } 115 } 116 117 _gx_context_pixelmap_get(pixelmap, &map); 118 119 if (map) 120 { 121 switch (button -> gx_widget_style & GX_PIXELMAP_HALIGN_MASK) 122 { 123 case GX_STYLE_HALIGN_CENTER: 124 xpos = button -> gx_widget_size.gx_rectangle_right - 125 button -> gx_widget_size.gx_rectangle_left - 126 map -> gx_pixelmap_width + 1; 127 128 xpos /= 2; 129 xpos += button -> gx_widget_size.gx_rectangle_left; 130 break; 131 132 case GX_STYLE_HALIGN_RIGHT: 133 xpos = button -> gx_widget_size.gx_rectangle_right - map -> gx_pixelmap_width + 1; 134 break; 135 136 default: 137 xpos = button -> gx_widget_size.gx_rectangle_left; 138 break; 139 } 140 141 switch (button -> gx_widget_style & GX_PIXELMAP_VALIGN_MASK) 142 { 143 case GX_STYLE_VALIGN_CENTER: 144 ypos = button -> gx_widget_size.gx_rectangle_bottom - 145 button -> gx_widget_size.gx_rectangle_top - 146 map -> gx_pixelmap_height + 1; 147 148 ypos /= 2; 149 ypos += button -> gx_widget_size.gx_rectangle_top; 150 break; 151 152 case GX_STYLE_VALIGN_BOTTOM: 153 ypos = button -> gx_widget_size.gx_rectangle_bottom - map -> gx_pixelmap_height + 1; 154 break; 155 156 default: 157 ypos = button -> gx_widget_size.gx_rectangle_top; 158 break; 159 } 160 _gx_widget_context_fill_set(widget); 161 _gx_canvas_pixelmap_draw((GX_VALUE)xpos, (GX_VALUE)ypos, map); 162 } 163 else 164 { 165 /* If I don't have a pixelmap and not transparent, 166 draw something 167 */ 168 if (!(widget -> gx_widget_style & GX_STYLE_TRANSPARENT)) 169 { 170 _gx_button_draw((GX_BUTTON *)button); 171 } 172 } 173 174 /* Draw button's children. */ 175 _gx_widget_children_draw(widget); 176 } 177 178
