102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
// 14 may 2015
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#include "uipriv_windows.hpp"
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static std::map<uiWindowsControl *, bool> resizes;
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// TODO clicking buttons doesn't get rid of anything?
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void uiWindowsControlQueueRelayout(uiWindowsControl *c)
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{
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HWND hwnd;
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HWND parent;
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uintmax_t i;
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// resizing a control requires us to reocmpute the sizes of everything in the top-level window
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hwnd = (HWND) uiControlHandle(uiControl(c));
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// TODO what if this is toplevel
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parent = parentToplevel(hwnd);
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if (parent == utilWindow) // not in a parent
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return;
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c = uiWindowsControl(SendMessageW(parent, msgGetuiWindow, 0, 0));
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resizes[c] = true;
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}
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void doResizes(void)
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{
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uiWindowsControl *w;
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HWND hwnd;
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RECT r;
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for (const auto &iter : resizes) {
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w = iter.first;
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// don't clip content if content dynamically changed (tab page changed, etc.)
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// do this BEFORE removing w from the queue list to avoid double queueing
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ensureMinimumWindowSize(uiWindow(w));
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hwnd = (HWND) uiControlHandle(uiControl(w));
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if (GetClientRect(hwnd, &r) == 0) {
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logLastError(L"error getting uiWindow client rect");
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// give up on this one; move on to the next one
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continue;
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}
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(*(w->Relayout))(w, r.left, r.top, r.right - r.left, r.bottom - r.top);
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// we used SWP_NOREDRAW; we need to queue a redraw ourselves
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// force all controls to be redrawn; this fixes things like the date-time picker's up-down not showing up until hovered over (and bypasses complications caused by WS_CLIPCHILDREN and WS_CLIPSIBLINGS, which we don't use but other controls might)
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if (RedrawWindow(hwnd, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_ALLCHILDREN) == 0)
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logLastError(L"error redrawing controls after a resize"); // and keep going anyway
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}
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// and wipe the list
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resizes.clear();
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}
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///////////////////////
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// TODO REEVALUATE EVERYTHING BEYOND THIS POINT
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// if we do have to keep, verify the error handling
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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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uiWindowsSizing *uiWindowsNewSizing(HWND hwnd)
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{
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uiWindowsSizing *d;
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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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d = uiNew(uiWindowsSizing);
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dc = GetDC(hwnd);
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if (dc == NULL)
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logLastError(L"error getting DC");
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prevfont = (HFONT) SelectObject(dc, hMessageFont);
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if (prevfont == NULL)
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logLastError(L"error loading control font into device context");
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ZeroMemory(&tm, sizeof (TEXTMETRICW));
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if (GetTextMetricsW(dc, &tm) == 0)
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logLastError(L"error getting text metrics");
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if (GetTextExtentPoint32W(dc, L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 52, &size) == 0)
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logLastError(L"error getting text extent point");
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d->BaseX = (int) ((size.cx / 26 + 1) / 2);
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d->BaseY = (int) tm.tmHeight;
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d->InternalLeading = tm.tmInternalLeading;
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if (SelectObject(dc, prevfont) != hMessageFont)
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logLastError(L"error restoring previous font into device context");
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if (ReleaseDC(hwnd, dc) == 0)
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logLastError(L"error releasing DC");
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d->XPadding = uiWindowsDlgUnitsToX(winXPadding, d->BaseX);
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d->YPadding = uiWindowsDlgUnitsToY(winYPadding, d->BaseY);
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return d;
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}
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void uiWindowsFreeSizing(uiWindowsSizing *d)
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{
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uiFree(d);
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}
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