MOTION_OverlapByWindow.c

00001 /*********************************************************************
00002 *                SEGGER Microcontroller GmbH                         *
00003 *        Solutions for real time microcontroller applications        *
00004 **********************************************************************
00005 *                                                                    *
00006 *        (c) 1996 - 2018  SEGGER Microcontroller GmbH                *
00007 *                                                                    *
00008 *        Internet: www.segger.com    Support:  support@segger.com    *
00009 *                                                                    *
00010 **********************************************************************
00011 
00012 ** emWin V5.48 - Graphical user interface for embedded applications **
00013 All  Intellectual Property rights  in the Software belongs to  SEGGER.
00014 emWin is protected by  international copyright laws.  Knowledge of the
00015 source code may not be used to write a similar product.  This file may
00016 only be used in accordance with the following terms:
00017 
00018 The software  has been licensed to  Cypress Semiconductor Corporation,
00019 whose registered  office is situated  at 198 Champion Ct. San Jose, CA 
00020 95134 USA  solely for the  purposes of creating  libraries for Cypress
00021 PSoC3 and  PSoC5 processor-based devices,  sublicensed and distributed
00022 under  the  terms  and  conditions  of  the  Cypress  End User License
00023 Agreement.
00024 Full source code is available at: www.segger.com
00025 
00026 We appreciate your understanding and fairness.
00027 ----------------------------------------------------------------------
00028 Licensing information
00029 Licensor:                 SEGGER Microcontroller Systems LLC
00030 Licensed to:              Cypress Semiconductor Corp, 198 Champion Ct., San Jose, CA 95134, USA
00031 Licensed SEGGER software: emWin
00032 License number:           GUI-00319
00033 License model:            Services and License Agreement, signed June 10th, 2009
00034 Licensed platform:        Any Cypress platform (Initial targets are: PSoC3, PSoC5)
00035 ----------------------------------------------------------------------
00036 Support and Update Agreement (SUA)
00037 SUA period:               2009-06-12 - 2022-07-27
00038 Contact to extend SUA:    sales@segger.com
00039 ----------------------------------------------------------------------
00040 File        : MOTION_MovingWindow.c
00041 Purpose     : Shows how to use simple motion support
00042 Requirements: WindowManager - (x)
00043               MemoryDevices - (x)
00044               AntiAliasing  - ( )
00045               VNC-Server    - ( )
00046               PNG-Library   - ( )
00047               TrueTypeFonts - ( )
00048 ----------------------------------------------------------------------
00049 */
00050 
00051 /*********************************************************************
00052 *
00053 *       Includes
00054 *
00055 **********************************************************************
00056 */
00057 #include "WM.h"
00058 
00059 /*********************************************************************
00060 *
00061 *       Static data
00062 *
00063 **********************************************************************
00064 */
00065 #define OVERLAP 140
00066 #define NUM_PAGES 4
00067 
00068 /*********************************************************************
00069 *
00070 *       Static code
00071 *
00072 **********************************************************************
00073 */
00074 /*********************************************************************
00075 *
00076 *       _cbWin
00077 */
00078 static void _cbWin(WM_MESSAGE * pMsg) {
00079   GUI_RECT Rect;
00080   WM_MOTION_INFO * pInfo;
00081   static int xPos;
00082   int i, xDist, xSize, xMin, xMax, Overlap;
00083 
00084   switch (pMsg->MsgId) {
00085   case WM_MOTION:
00086     pInfo = (WM_MOTION_INFO *)pMsg->Data.p;
00087     switch (pInfo->Cmd) {
00088     case WM_MOTION_INIT:
00089       WM_GetClientRectEx(pMsg->hWin, &Rect);
00090       //
00091       // Enable motion support
00092       //
00093       pInfo->Flags = WM_CF_MOTION_X | WM_MOTION_MANAGE_BY_WINDOW;
00094       pInfo->SnapX = Rect.x1 + 1;
00095       //
00096       // Allow overlapping
00097       //
00098       pInfo->Overlap = OVERLAP;
00099       break;
00100     case WM_MOTION_MOVE:
00101       //
00102       // Move 'content' of window
00103       //
00104       xSize = LCD_GetXSize();
00105       xPos += pInfo->dx;
00106       //
00107       // Use 'IsDragging' for determining if PID is pressed
00108       //
00109       if (pInfo->IsDragging) {
00110         pInfo->IsOutside = ((xPos < -((xSize * (NUM_PAGES - 1)))) || (xPos > 0)) ? 1 : 0;
00111         Overlap = pInfo->Overlap;
00112       } else {
00113         Overlap = pInfo->Overlap * pInfo->IsOutside;
00114       }
00115       //
00116       // Determine if dragging operation is 'outside'
00117       //
00118       xMin = (int)(((xSize * (NUM_PAGES - 1)) + Overlap) * -1);
00119       xMax = Overlap;
00120       if (xPos < xMin) {
00121         xPos = xMin;
00122         pInfo->StopMotion = pInfo->IsDragging ^ 1;
00123       } else if (xPos > xMax) {
00124         xPos = xMax;
00125         pInfo->StopMotion = pInfo->IsDragging ^ 1;
00126       }
00127       //
00128       // Make sure window will be repainted
00129       //
00130       WM_InvalidateWindow(pMsg->hWin);
00131       break;
00132     case WM_MOTION_GETPOS:
00133       pInfo->xPos = xPos;
00134       break;
00135     }
00136     break;
00137   case WM_PAINT:
00138     //
00139     // Draw 'content' of window
00140     //
00141     GUI_Clear();
00142     WM_GetClientRect(&Rect);
00143     xDist = Rect.x1 + 1;
00144     for (i = 0; i < NUM_PAGES; i++) {
00145       GUI_DrawRect(i * xDist + xPos, 0, (i + 1) * xDist + xPos - 1, Rect.y1);
00146       GUI_SetFont(GUI_FONT_32B_ASCII);
00147       GUI_DispStringAt("Page #", i * xDist + xPos + 40, Rect.y1 / 2 - 16);
00148       GUI_DispDecMin(i);
00149     }
00150     break;
00151   default:
00152     WM_DefaultProc(pMsg);
00153   }
00154 }
00155 
00156 /*********************************************************************
00157 *
00158 *       Public code
00159 *
00160 **********************************************************************
00161 */
00162 /*********************************************************************
00163 *
00164 *       MainTask
00165 */
00166 void MainTask(void) {
00167   int xSize, ySize;
00168 
00169 #if GUI_SUPPORT_MEMDEV
00170   WM_SetCreateFlags(WM_CF_MEMDEV);
00171 #endif
00172   GUI_Init();
00173   //
00174   // Limit desktop window to physical display size
00175   //
00176   xSize = LCD_GetXSize();
00177   ySize = LCD_GetYSize();
00178   WM_SetSize(WM_HBKWIN, xSize, ySize);
00179   //
00180   // Make sure background is black
00181   //
00182   WM_SetDesktopColor(GUI_BLACK);
00183   //
00184   // Enable motion support
00185   //
00186   WM_MOTION_Enable(1);
00187   //
00188   // Create window without motion support...
00189   //
00190   WM_CreateWindowAsChild(0, 0, xSize, ySize, WM_HBKWIN, WM_CF_SHOW, _cbWin, 0);
00191   //
00192   // ...and keep demo alive
00193   //
00194   while (1) {
00195     GUI_Delay(100);
00196   }
00197 }
00198 
00199 /*************************** End of file ****************************/