1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** GUIX Component */ 17 /** */ 18 /** Window Management (Window) */ 19 /** */ 20 /**************************************************************************/ 21 22 #define GX_SOURCE_CODE 23 24 25 /* Include necessary system files. */ 26 27 #include "gx_api.h" 28 #include "gx_system.h" 29 #include "gx_widget.h" 30 #include "gx_window.h" 31 #include "gx_canvas.h" 32 #include "gx_utility.h" 33 34 35 /**************************************************************************/ 36 /* */ 37 /* FUNCTION RELEASE */ 38 /* */ 39 /* _gx_window_root_event_process PORTABLE C */ 40 /* 6.1 */ 41 /* AUTHOR */ 42 /* */ 43 /* Kenneth Maxwell, Microsoft Corporation */ 44 /* */ 45 /* DESCRIPTION */ 46 /* */ 47 /* This function processes events for the specified root window. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* widget Window's widget control block */ 52 /* event_ptr Incoming event to process */ 53 /* */ 54 /* OUTPUT */ 55 /* */ 56 /* status Completion status */ 57 /* */ 58 /* CALLS */ 59 /* */ 60 /* _gx_canvas_shift Shift the canvas */ 61 /* _gx_window_event_process Call widget event processing */ 62 /* */ 63 /* CALLED BY */ 64 /* */ 65 /* GUIX Internal Code */ 66 /* */ 67 /* RELEASE HISTORY */ 68 /* */ 69 /* DATE NAME DESCRIPTION */ 70 /* */ 71 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ 72 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */ 73 /* resulting in version 6.1 */ 74 /* */ 75 /**************************************************************************/ _gx_window_root_event_process(GX_WINDOW_ROOT * win,GX_EVENT * event_ptr)76UINT _gx_window_root_event_process(GX_WINDOW_ROOT *win, GX_EVENT *event_ptr) 77 { 78 UINT status; 79 GX_VALUE xShift; 80 GX_VALUE yShift; 81 82 status = GX_SUCCESS; 83 84 /* Process relative to the type of event. */ 85 switch (event_ptr -> gx_event_type) 86 { 87 case GX_EVENT_PEN_DRAG: 88 if (win -> gx_window_move_mode) 89 { 90 /* to move a root window we have to move the canvas. Calculate 91 the x,y shift amounts 92 */ 93 xShift = (GX_VALUE)(event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x - 94 win -> gx_window_move_start.gx_point_x); 95 yShift = (GX_VALUE)(event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y - 96 win -> gx_window_move_start.gx_point_y); 97 98 /* reset the starting point for next time */ 99 win -> gx_window_move_start.gx_point_x = 100 (GX_VALUE)(event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x - xShift); 101 win -> gx_window_move_start.gx_point_y = 102 (GX_VALUE)(event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y - yShift); 103 104 /* move the canvas */ 105 _gx_canvas_shift(win -> gx_window_root_canvas, xShift, yShift); 106 } 107 return(GX_SUCCESS); 108 109 110 111 default: 112 113 /* Call the window default processing function. */ 114 status = _gx_window_event_process((GX_WINDOW *)win, event_ptr); 115 } 116 /* Return widget event processing status. */ 117 return(status); 118 } 119 120
