125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
// 27 april 2015
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#include "uipriv_windows.h"
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struct bin {
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uiContainer c;
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void (*baseDestroy)(uiControl *);
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uiControl *mainControl;
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intmax_t marginLeft;
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intmax_t marginTop;
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intmax_t marginRight;
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intmax_t marginBottom;
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};
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static void binDestroy(uiControl *c)
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{
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struct bin *b = (struct bin *) c;
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HWND hwnd;
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// ensure clean removal by making sure the bin has no OS parent
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hwnd = (HWND) uiControlHandle(uiControl(b));
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if (GetAncestor(hwnd, GA_PARENT) != NULL)
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complain("attempt to destroy bin %p while it has an OS parent", b);
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// don't chain up to base here; we need to destroy children ourselves first
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if (b->mainControl != NULL) {
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uiControlSetParent(b->mainControl, NULL);
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uiControlDestroy(b->mainControl);
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}
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// NOW we can chain up to base
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(*(b->baseDestroy))(uiControl(b));
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uiFree(b);
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}
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static void binPreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
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{
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struct bin *b = (struct bin *) c;
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intmax_t marginX, marginY;
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if (b->mainControl == NULL) {
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*width = 0;
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*height = 0;
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return;
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}
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uiControlPreferredSize(b->mainControl, d, width, height);
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marginX = uiDlgUnitsToX(b->marginLeft, d->sys->baseX) + uiDlgUnitsToX(b->marginRight, d->sys->baseX);
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marginY = uiDlgUnitsToY(b->marginTop, d->sys->baseY) + uiDlgUnitsToY(b->marginBottom, d->sys->baseY);
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*width += marginX;
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*height += marginY;
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}
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static void binSysFunc(uiControl *c, uiControlSysFuncParams *p)
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{
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struct bin *b = (struct bin *) c;
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if (b->mainControl != NULL)
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uiControlSysFunc(b->mainControl, p);
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}
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static void binResizeChildren(uiContainer *c, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
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{
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struct bin *b = (struct bin *) c;
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intmax_t marginLeft, marginTop;
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if (b->mainControl == NULL)
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return;
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marginLeft = uiDlgUnitsToX(b->marginLeft, d->sys->baseX);
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marginTop = uiDlgUnitsToY(b->marginTop, d->sys->baseY);
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x += marginLeft;
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y += marginTop;
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width -= marginLeft + uiDlgUnitsToX(b->marginRight, d->sys->baseX);
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height -= marginTop + uiDlgUnitsToY(b->marginBottom, d->sys->baseY);
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uiControlResize(b->mainControl, x, y, width, height, d);
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}
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uiContainer *newBin(void)
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{
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struct bin *b;
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b = uiNew(struct bin);
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uiMakeContainer(uiContainer(b));
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b->baseDestroy = uiControl(b)->Destroy;
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uiControl(b)->Destroy = binDestroy;
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uiControl(b)->PreferredSize = binPreferredSize;
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uiControl(b)->SysFunc = binSysFunc;
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uiContainer(b)->ResizeChildren = binResizeChildren;
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return uiContainer(b);
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}
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void binSetMainControl(uiContainer *c, uiControl *mainControl)
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{
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struct bin *b = (struct bin *) c;
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if (b->mainControl != NULL)
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uiControlSetParent(b->mainControl, NULL);
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b->mainControl = mainControl;
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if (b->mainControl != NULL)
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uiControlSetParent(b->mainControl, uiContainer(b));
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uiContainerUpdate(uiContainer(b));
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}
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void binSetMargins(uiContainer *c, intmax_t left, intmax_t top, intmax_t right, intmax_t bottom)
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{
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struct bin *b = (struct bin *) c;
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b->marginLeft = left;
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b->marginRight = right;
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b->marginTop = top;
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b->marginBottom = bottom;
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uiContainerUpdate(uiContainer(b));
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}
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void binSetParent(uiContainer *c, uintptr_t osParent)
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{
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struct bin *b = (struct bin *) c;
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HWND hwnd;
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HWND newParent = (HWND) osParent;
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hwnd = (HWND) uiControlHandle(uiControl(b));
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if (SetParent(hwnd, newParent) == 0)
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logLastError("error changing bin's parent in binSetParent()");
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}
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