147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
// 14 may 2015
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#include "uipriv_windows.h"
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static struct ptrArray *resizes;
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void initResizes(void)
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{
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resizes = newPtrArray();
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}
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void uninitResizes(void)
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{
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while (resizes->len != 0)
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ptrArrayDelete(resizes, 0);
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ptrArrayDestroy(resizes);
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}
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static uiControl *findToplevel(uiControl *c)
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{
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for (;;) {
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if (uiIsWindow(c))
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break;
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if (uiControlParent(c) == NULL) // not in a window
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return NULL;
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c = uiControlParent(c);
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}
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return c;
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}
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void queueResize(uiControl *c)
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{
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uintmax_t i;
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uiControl *d;
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// resizing a control requires us to reocmpute the sizes of everything in the top-level window
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c = findToplevel(c);
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if (c == NULL)
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return;
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// make sure we're only queued once
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for (i = 0 ; i < resizes->len; i++) {
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d = ptrArrayIndex(resizes, uiControl *, i);
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if (c == d)
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return;
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}
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ptrArrayAppend(resizes, c);
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}
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// TODO dequeueResize
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void doResizes(void)
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{
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uiWindow *w;
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HWND hwnd;
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while (resizes->len != 0) {
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w = ptrArrayIndex(resizes, uiWindow *, 0);
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ptrArrayDelete(resizes, 0);
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uiWindowResizeChild(w);
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hwnd = (HWND) uiControlHandle(uiControl(w));
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// we used SWP_NOREDRAW; we need to queue a redraw ourselves
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// TODO use RedrawWindow() to bypass WS_CLIPCHILDREN complications
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if (InvalidateRect(hwnd, NULL, TRUE) == 0)
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logLastError("error redrawing controls after a resize in doResizes()");
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}
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}
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#define swpflags (SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOREDRAW)
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void moveWindow(HWND hwnd, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
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{
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RECT r;
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r.left = x;
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r.top = y;
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r.right = x + width;
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r.bottom = y + height;
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mapWindowRect(d->Sys->CoordFrom, d->Sys->CoordTo, &r);
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if (SetWindowPos(hwnd, NULL, r.left, r.top, r.right - r.left, r.bottom - r.top, swpflags | SWP_NOZORDER) == 0)
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logLastError("error moving window in moveWindow()");
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}
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// TODO make sure we're not missing any flags
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void setWindowInsertAfter(HWND hwnd, HWND insertAfter)
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{
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if (SetWindowPos(hwnd, insertAfter, 0, 0, 0, 0, swpflags | SWP_NOMOVE | SWP_NOSIZE) == 0)
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logLastError("error reordering window in setWindowInsertAfter()");
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}
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// from https://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing and https://msdn.microsoft.com/en-us/library/windows/desktop/bb226818%28v=vs.85%29.aspx
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// this X value is really only for buttons but I don't see a better one :/
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#define winXPadding 4
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#define winYPadding 4
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uiSizing *uiWindowsSizing(uiControl *c)
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{
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uiSizing *d;
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HWND hwnd;
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HDC dc;
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HFONT prevfont;
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TEXTMETRICW tm;
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SIZE size;
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uiControl *toplevel;
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d = uiNew(uiSizing);
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d->Sys = uiNew(uiSizingSys);
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hwnd = (HWND) uiControlHandle(c);
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dc = GetDC(hwnd);
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if (dc == NULL)
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logLastError("error getting DC in uiWindowsSizing()");
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prevfont = (HFONT) SelectObject(dc, hMessageFont);
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if (prevfont == NULL)
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logLastError("error loading control font into device context in uiWindowsSizing()");
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ZeroMemory(&tm, sizeof (TEXTMETRICW));
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if (GetTextMetricsW(dc, &tm) == 0)
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logLastError("error getting text metrics in uiWindowsSizing()");
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if (GetTextExtentPoint32W(dc, L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 52, &size) == 0)
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logLastError("error getting text extent point in uiWindowsSizing()");
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d->Sys->BaseX = (int) ((size.cx / 26 + 1) / 2);
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d->Sys->BaseY = (int) tm.tmHeight;
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d->Sys->InternalLeading = tm.tmInternalLeading;
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if (SelectObject(dc, prevfont) != hMessageFont)
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logLastError("error restoring previous font into device context in uiWindowsSizing()");
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if (ReleaseDC(hwnd, dc) == 0)
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logLastError("error releasing DC in uiWindowsSizing()");
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d->XPadding = uiWindowsDlgUnitsToX(winXPadding, d->Sys->BaseX);
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d->YPadding = uiWindowsDlgUnitsToY(winYPadding, d->Sys->BaseY);
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toplevel = findToplevel(c);
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if (toplevel != NULL)
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d->Sys->CoordFrom = (HWND) uiControlHandle(toplevel);
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d->Sys->CoordTo = hwnd;
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return d;
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}
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void uiFreeSizing(uiSizing *d)
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{
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uiFree(d->Sys);
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uiFree(d);
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}
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