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 /**   Slider Management (Slider)                                          */
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_widget.h"
29 #include "gx_button.h"
30 #include "gx_slider.h"
31 
32 
33 /**************************************************************************/
34 /*                                                                        */
35 /*  FUNCTION                                               RELEASE        */
36 /*                                                                        */
37 /*    _gx_slider_event_process                            PORTABLE C      */
38 /*                                                           6.1          */
39 /*  AUTHOR                                                                */
40 /*                                                                        */
41 /*    Kenneth Maxwell, Microsoft Corporation                              */
42 /*                                                                        */
43 /*  DESCRIPTION                                                           */
44 /*                                                                        */
45 /*    This service processes a slider event.                              */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    slider                                Slider widget control block   */
50 /*    event                                 Pointer to event process      */
51 /*                                                                        */
52 /*  OUTPUT                                                                */
53 /*                                                                        */
54 /*    status                                Completion status             */
55 /*                                                                        */
56 /*  CALLS                                                                 */
57 /*                                                                        */
58 /*    _gx_slider_value_calculate            Calculate the slider value    */
59 /*    _gx_widget_event_process              Default widget event process  */
60 /*                                                                        */
61 /*  CALLED BY                                                             */
62 /*                                                                        */
63 /*    Application Code                                                    */
64 /*    GUIX Internal Code                                                  */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
71 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
72 /*                                            resulting in version 6.1    */
73 /*                                                                        */
74 /**************************************************************************/
_gx_slider_event_process(GX_SLIDER * slider,GX_EVENT * event_ptr)75 UINT  _gx_slider_event_process(GX_SLIDER *slider, GX_EVENT *event_ptr)
76 {
77 UINT status;
78 INT  pos;
79 
80     /* Default status to success.  */
81     status =  GX_SUCCESS;
82 
83     /* Process relative to the type of event.  */
84     switch (event_ptr -> gx_event_type)
85     {
86     case GX_EVENT_PEN_DOWN:
87 
88         /* Set style for pen down.  */
89         slider -> gx_widget_style |=  GX_STYLE_BUTTON_PUSHED;
90 
91         if (slider -> gx_widget_style & GX_STYLE_SLIDER_VERTICAL)
92         {
93             pos = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
94         }
95         else
96         {
97             pos = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
98         }
99 
100         _gx_slider_value_calculate(slider, &slider -> gx_slider_info, pos);
101         break;
102 
103     case GX_EVENT_PEN_UP:
104 
105         /* Set style for pen down.  */
106         slider -> gx_widget_style &=  ~GX_STYLE_BUTTON_PUSHED;
107         break;
108 
109     case GX_EVENT_PEN_DRAG:
110         /* move my needle */
111         if (slider -> gx_widget_style &  GX_STYLE_BUTTON_PUSHED)
112         {
113             if (slider -> gx_widget_style & GX_STYLE_SLIDER_VERTICAL)
114             {
115                 pos = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
116             }
117             else
118             {
119                 pos = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
120             }
121             _gx_slider_value_calculate(slider, &slider -> gx_slider_info, pos);
122         }
123         break;
124 
125     default:
126 
127         /* Call the widget default processing.  */
128         status =  _gx_widget_event_process((GX_WIDGET *)slider, event_ptr);
129     }
130 
131     /* Return completion status.  */
132     return(status);
133 }
134 
135