94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
|
|
*********************************************************************************************************
|
|
* uC/GUI
|
|
* Universal graphic software for embedded applications
|
|
*
|
|
* (c) Copyright 2002, Micrium Inc., Weston, FL
|
|
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
|
|
*
|
|
* µC/GUI is protected by international copyright laws. Knowledge of the
|
|
* source code may not be used to write a similar product. This file may
|
|
* only be used in accordance with a license and should not be redistributed
|
|
* in any way. We appreciate your understanding and fairness.
|
|
*
|
|
----------------------------------------------------------------------
|
|
File : WM_SetTrans.C
|
|
Purpose : Windows manager, optional routines
|
|
----------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "WM_Intern.h"
|
|
|
|
#if GUI_WINSUPPORT
|
|
#if WM_SUPPORT_TRANSPARENCY /* If 0, WM will not generate any code */
|
|
|
|
#include "GUIDebug.h"
|
|
|
|
/*********************************************************************
|
|
*
|
|
* Public code
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
/*********************************************************************
|
|
*
|
|
* WM_SetHasTrans
|
|
*/
|
|
void WM_SetHasTrans(WM_HWIN hWin) {
|
|
WM_Obj *pWin;
|
|
WM_LOCK();
|
|
if (hWin) {
|
|
pWin = WM_H2P(hWin);
|
|
/* First check if this is necessary at all */
|
|
if ((pWin->Status & WM_SF_HASTRANS) == 0) {
|
|
pWin->Status |= WM_SF_HASTRANS; /* Set Transparency flag */
|
|
WM__TransWindowCnt++; /* Increment counter for transparency windows */
|
|
WM_InvalidateWindow(hWin); /* Mark content as invalid */
|
|
}
|
|
}
|
|
WM_UNLOCK();
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* WM_ClrHasTrans
|
|
*/
|
|
void WM_ClrHasTrans(WM_HWIN hWin) {
|
|
WM_Obj *pWin;
|
|
WM_LOCK();
|
|
if (hWin) {
|
|
pWin = WM_H2P(hWin);
|
|
/* First check if this is necessary at all */
|
|
if (pWin->Status & WM_SF_HASTRANS) {
|
|
pWin->Status &= ~WM_SF_HASTRANS;
|
|
WM__TransWindowCnt--; /* Decrement counter for transparency windows */
|
|
WM_InvalidateWindow(hWin); /* Mark content as invalid */
|
|
}
|
|
}
|
|
WM_UNLOCK();
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* WM_GetHasTrans
|
|
*/
|
|
int WM_GetHasTrans(WM_HWIN hWin) {
|
|
int r = 0;
|
|
WM_Obj *pWin;
|
|
WM_LOCK();
|
|
if (hWin) {
|
|
pWin = WM_H2P(hWin);
|
|
r = pWin->Status & WM_SF_HASTRANS;
|
|
}
|
|
WM_UNLOCK();
|
|
return r;
|
|
}
|
|
|
|
#endif /*WM_SUPPORT_TRANSPARENCY*/
|
|
|
|
#else
|
|
void WM_SetTrans_c(void) {} /* avoid empty object files */
|
|
#endif /* GUI_WINSUPPORT */
|
|
|
|
/*************************** End of file ****************************/
|