133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
// 27 april 2015
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#include "ui.h"
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#include "uipriv.h"
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struct bin {
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uiBin b;
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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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// ensure clean removal by making sure the bin has no OS parent
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if (uiBinHasOSParent(uiBin(b)))
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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 left, top, right, bottom;
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intmax_t cwid, cht;
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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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// first do margins
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left = b->marginLeft;
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top = b->marginTop;
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right = b->marginRight;
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bottom = b->marginBottom;
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uiBinTranslateMargins(uiBin(b), &left, &top, &right, &bottom, d);
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*width = left + right;
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*height = top + bottom;
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// then do the control
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uiControlPreferredSize(b->mainControl, d, &cwid, &cht);
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*width += cwid;
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*height += cht;
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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 left, top, right, bottom;
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if (b->mainControl == NULL)
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return;
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left = b->marginLeft;
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top = b->marginTop;
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right = b->marginRight;
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bottom = b->marginBottom;
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uiBinTranslateMargins(uiBin(b), &left, &top, &right, &bottom, d);
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x += left;
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y += top;
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width -= left + right;
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height -= top + bottom;
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uiControlResize(b->mainControl, x, y, width, height, d);
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}
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static void binSetMainControl(uiBin *bb, uiControl *mainControl)
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{
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struct bin *b = (struct bin *) bb;
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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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}
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static void binSetMargins(uiBin *bb, 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 *) bb;
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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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}
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uiBin *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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uiBin(b)->SetMainControl = binSetMainControl;
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uiBin(b)->SetMargins = binSetMargins;
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// these are defined by each OS's bin.c
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uiBin(b)->HasOSParent = binHasOSParent;
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uiBin(b)->SetOSParent = binSetOSParent;
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uiBin(b)->RemoveOSParent = binRemoveOSParent;
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uiBin(b)->ResizeRootAndUpdate = binResizeRootAndUpdate;
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uiBin(b)->TranslateMargins = binTranslateMargins;
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return uiBin(b);
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}
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