system/lib/lcd/gui/WM/WM_ResizeWindow.c

75 lines
2.5 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_ResizeWindow.C
Purpose : Windows manager, add. module
----------------------------------------------------------------------
*/
#include <stddef.h>
#include "WM_Intern.h"
#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
#include "GUIDebug.h"
#define WM_DEBUG_LEVEL 1
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* WM_ResizeWindow
*/
void WM_ResizeWindow(WM_HWIN hWin, int dx, int dy) {
GUI_RECT rOld, rNew, rMerge;
WM_Obj* pWin;
if (((dx | dy) == 0) || (hWin == 0)){ /* Early out if there is nothing to do */
return;
}
WM_LOCK();
pWin = WM_HANDLE2PTR(hWin);
rOld = pWin->Rect;
rNew = rOld;
if (dx) {
if ((pWin->Status & WM_SF_ANCHOR_RIGHT) && (!(pWin->Status & WM_SF_ANCHOR_LEFT))) {
rNew.x0 -= dx;
} else {
rNew.x1 += dx;
}
}
if (dy) {
if ((pWin->Status & WM_SF_ANCHOR_BOTTOM) && (!(pWin->Status & WM_SF_ANCHOR_TOP))) {
rNew.y0 -= dy;
} else {
rNew.y1 += dy;
}
}
GUI_MergeRect(&rMerge, &rOld, &rNew);
pWin->Rect = rNew;
WM_InvalidateArea(&rMerge);
WM__UpdateChildPositions(pWin, rNew.x0 - rOld.x0, rNew.y0 - rOld.y0, rNew.x1 - rOld.x1, rNew.y1 - rOld.y1);
GUI__IntersectRect(&pWin->InvalidRect, &pWin->Rect); /* Make sure invalid area is not bigger than window itself */
WM__SendMsgNoData(hWin, WM_SIZE); /* Send size message to the window */
WM_UNLOCK();
}
#else
void WM_ResizeWindow(void) {} /* avoid empty object files */
#endif /* GUI_WINSUPPORT */
/*************************** End of file ****************************/