111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
// 7 april 2015
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#include "uipriv_windows.h"
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/*
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all container windows (including the message-only window, hence this is not in container_windows.c) have to call the sharedWndProc() to ensure messages go in the right place and control colors are handled properly
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*/
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/*
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all controls that have events receive the events themselves through subclasses
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to do this, all container windows (including the message-only window; see http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q104069) forward WM_COMMAND to each control with this function, WM_NOTIFY with forwardNotify, etc.
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*/
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static LRESULT forwardCommand(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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HWND control = (HWND) lParam;
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// don't generate an event if the control (if there is one) is unparented (a child of the initial parent window)
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if (control != NULL && IsChild(initialParent, control) == 0)
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return SendMessageW(control, msgCOMMAND, wParam, lParam);
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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static LRESULT forwardNotify(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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NMHDR *nmhdr = (NMHDR *) lParam;
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HWND control = nmhdr->hwndFrom;
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// don't generate an event if the control (if there is one) is unparented (a child of the initial parent window)
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if (control != NULL && IsChild(initialParent, control) == 0)
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return SendMessageW(control, msgNOTIFY, wParam, lParam);
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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BOOL sharedWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
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{
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switch (uMsg) {
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case WM_COMMAND:
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*lResult = forwardCommand(hwnd, uMsg, wParam, lParam);
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return TRUE;
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case WM_NOTIFY:
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*lResult = forwardNotify(hwnd, uMsg, wParam, lParam);
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return TRUE;
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/*TODO case WM_CTLCOLORSTATIC:
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case WM_CTLCOLORBTN:
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// read-only TextFields and Textboxes are exempt
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// this is because read-only edit controls count under WM_CTLCOLORSTATIC
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if (windowClassOf((HWND) lParam, L"edit", NULL) == 0)
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if (textfieldReadOnly((HWND) lParam))
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return FALSE;
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if (SetBkMode((HDC) wParam, TRANSPARENT) == 0)
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xpanic("error setting transparent background mode to Labels", GetLastError());
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paintControlBackground((HWND) lParam, (HDC) wParam);
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*lResult = (LRESULT) hollowBrush;
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return TRUE;
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*/ }
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return FALSE;
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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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void resize(uiControl *control, HWND parent, RECT r, RECT margin)
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{
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uiSizing d;
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uiSizingSys sys;
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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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size.cx = 0;
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size.cy = 0;
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ZeroMemory(&tm, sizeof (TEXTMETRICW));
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dc = GetDC(parent);
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if (dc == NULL)
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logLastError("error getting DC in resize()");
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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 resize()");
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if (GetTextMetricsW(dc, &tm) == 0)
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logLastError("error getting text metrics in resize()");
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if (GetTextExtentPoint32W(dc, L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 52, &size) == 0)
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logLastError("error getting text extent point in resize()");
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sys.baseX = (int) ((size.cx / 26 + 1) / 2);
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sys.baseY = (int) tm.tmHeight;
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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 resize()");
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if (ReleaseDC(parent, dc) == 0)
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logLastError("error releasing DC in resize()");
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r.left += uiDlgUnitsToX(margin.left, sys.baseX);
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r.top += uiDlgUnitsToY(margin.top, sys.baseY);
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r.right -= uiDlgUnitsToX(margin.right, sys.baseX);
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r.bottom -= uiDlgUnitsToY(margin.bottom, sys.baseY);
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d.xPadding = uiDlgUnitsToX(winXPadding, sys.baseX);
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d.yPadding = uiDlgUnitsToY(winYPadding, sys.baseY);
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d.sys = &sys;
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uiControlResize(control, r.left, r.top, r.right - r.left, r.bottom - r.top, &d);
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}
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void updateParent(uintptr_t h)
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{
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HWND hwnd;
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if (h == 0) // no parent
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return;
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hwnd = (HWND) h;
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SendMessageW(hwnd, msgUpdateChild, 0, 0);
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}
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