libui/windows/resize.c

125 lines
3.9 KiB
C

// 14 may 2015
#include "uipriv_windows.h"
static struct ptrArray *resizes;
void initResizes(void)
{
resizes = newPtrArray();
}
void uninitResizes(void)
{
while (resizes->len != 0)
ptrArrayDelete(resizes, 0);
ptrArrayDestroy(resizes);
}
void uiWindowsControlQueueRelayout(uiWindowsControl *c)
{
uiControl *cc;
uintmax_t i;
uiWindowsControl *d;
// resizing a control requires us to reocmpute the sizes of everything in the top-level window
cc = toplevelOwning(uiControl(c));
if (cc == NULL)
return;
c = uiWindowsControl(cc);
// make sure we're only queued once
for (i = 0 ; i < resizes->len; i++) {
d = ptrArrayIndex(resizes, uiWindowsControl *, i);
if (c == d)
return;
}
ptrArrayAppend(resizes, c);
}
void doResizes(void)
{
uiWindowsControl *w;
HWND hwnd;
RECT r;
while (resizes->len != 0) {
w = ptrArrayIndex(resizes, uiWindowsControl *, 0);
ptrArrayDelete(resizes, 0);
// don't clip content if content dynamically changed (tab page changed, etc.)
ensureMinimumWindowSize(uiWindow(w));
hwnd = (HWND) uiControlHandle(uiControl(w));
if (GetClientRect(hwnd, &r) == 0)
logLastError("error getting uiWindow client rect in doResizes()");
(*(w->Relayout))(w, r.left, r.top, r.right - r.left, r.bottom - r.top);
// we used SWP_NOREDRAW; we need to queue a redraw ourselves
// 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)
if (RedrawWindow(hwnd, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_ALLCHILDREN) == 0)
logLastError("error redrawing controls after a resize in doResizes()");
}
}
void uiWindowsEnsureMoveWindow(HWND hwnd, intmax_t x, intmax_t y, intmax_t width, intmax_t height)
{
RECT r;
r.left = x;
r.top = y;
r.right = x + width;
r.bottom = y + height;
if (SetWindowPos(hwnd, NULL, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOREDRAW | SWP_NOZORDER) == 0)
logLastError("error moving window in moveWindow()");
}
void setWindowInsertAfter(HWND hwnd, HWND insertAfter)
{
if (SetWindowPos(hwnd, insertAfter, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOSIZE) == 0)
logLastError("error reordering window in setWindowInsertAfter()");
}
// 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
// this X value is really only for buttons but I don't see a better one :/
#define winXPadding 4
#define winYPadding 4
uiWindowsSizing *uiWindowsNewSizing(HWND hwnd)
{
uiWindowsSizing *d;
HDC dc;
HFONT prevfont;
TEXTMETRICW tm;
SIZE size;
d = uiNew(uiWindowsSizing);
dc = GetDC(hwnd);
if (dc == NULL)
logLastError("error getting DC in uiWindowsNewSizing()");
prevfont = (HFONT) SelectObject(dc, hMessageFont);
if (prevfont == NULL)
logLastError("error loading control font into device context in uiWindowsNewSizing()");
ZeroMemory(&tm, sizeof (TEXTMETRICW));
if (GetTextMetricsW(dc, &tm) == 0)
logLastError("error getting text metrics in uiWindowsNewSizing()");
if (GetTextExtentPoint32W(dc, L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 52, &size) == 0)
logLastError("error getting text extent point in uiWindowsNewSizing()");
d->BaseX = (int) ((size.cx / 26 + 1) / 2);
d->BaseY = (int) tm.tmHeight;
d->InternalLeading = tm.tmInternalLeading;
if (SelectObject(dc, prevfont) != hMessageFont)
logLastError("error restoring previous font into device context in uiWindowsSizing()");
if (ReleaseDC(hwnd, dc) == 0)
logLastError("error releasing DC in uiWindowsSizing()");
d->XPadding = uiWindowsDlgUnitsToX(winXPadding, d->BaseX);
d->YPadding = uiWindowsDlgUnitsToY(winYPadding, d->BaseY);
return d;
}
void uiWindowsFreeSizing(uiWindowsSizing *d)
{
uiFree(d);
}