Set up the foundation for the new Windows uiParent.
This commit is contained in:
Pietro Gagliardi
parent
2209039a6b
commit
5c6d2533ac
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@ -1,151 +0,0 @@
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// 7 april 2015
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#include "uipriv_windows.h"
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// TODOs
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// - wiith CTLCOLOR handler: [12:24] <ZeroOne> There's flickering between tabs
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// - with CTLCOLOR handler: [12:24] <ZeroOne> And setting the button text blanked out the entire GUI until I ran my mouse over the elements / [12:25] <ZeroOne> https://dl.dropboxusercontent.com/u/15144168/GUI%20stuff.png / [12:41] <ZeroOne> https://dl.dropboxusercontent.com/u/15144168/stack.png here have another screenshot
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// - I get this too
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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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static void paintControlBackground(HWND hwnd, HDC dc)
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{
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HWND parent;
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RECT r;
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POINT pOrig;
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DWORD le;
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parent = hwnd;
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for (;;) {
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parent = GetParent(parent);
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if (parent == NULL)
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logLastError("error getting parent control of control in paintControlBackground()");
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// wine sends these messages early, yay...
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if (parent == initialParent)
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return;
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// skip groupboxes; they're (supposed to be) transparent
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if (windowClassOf(parent, L"button", NULL) != 0)
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break;
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}
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if (GetWindowRect(hwnd, &r) == 0)
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logLastError("error getting control's window rect in paintControlBackground()");
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// the above is a window rect in screen coordinates; convert to parent coordinates
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SetLastError(0);
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if (MapWindowRect(NULL, parent, &r) == 0) {
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le = GetLastError();
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SetLastError(le); // just to be safe
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if (le != 0)
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logLastError("error getting client origin of control in paintControlBackground()");
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}
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if (SetWindowOrgEx(dc, r.left, r.top, &pOrig) == 0)
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logLastError("error moving window origin in paintControlBackground()");
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SendMessageW(parent, WM_PRINTCLIENT, (WPARAM) dc, PRF_CLIENT);
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if (SetWindowOrgEx(dc, pOrig.x, pOrig.y, NULL) == 0)
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logLastError("error resetting window origin in paintControlBackground()");
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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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case WM_CTLCOLORSTATIC:
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case WM_CTLCOLORBTN:
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/*TODO // 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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logLastError("error setting transparent background mode to controls in sharedWndProc()");
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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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@ -95,7 +95,7 @@ const char *uiInit(uiInitOptions *o)
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if (hMessageFont == NULL)
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return loadLastError("loading default messagebox font; this is the default UI font");
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ce = initInitialParent(hDefaultIcon, hDefaultCursor);
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ce = initParent(hDefaultIcon, hDefaultCursor);
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if (ce != NULL)
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return loadLastError(ce);
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// 10 april 2015
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#include "uipriv_windows.h"
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// for maximum safety, all controls that don't have a parent are made children of this, the "initial parent"
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// it behaves like other containers due to bugs described in container_windows.c, but is never seen, is disabled, and cannot be interacted with by end users
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// despite being called the initial parent, it is used whenever a control has no parent, even if it loses its parent at some later point during the execution of the program
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#define uiInitialParentClass L"uiInitialParentClass"
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HWND initialParent;
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static LRESULT CALLBACK initialParentWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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LRESULT lResult;
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if (sharedWndProc(hwnd, uMsg, wParam, lParam, &lResult) != FALSE)
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return lResult;
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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const char *initInitialParent(HICON hDefaultIcon, HCURSOR hDefaultCursor)
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{
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WNDCLASSW wc;
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ZeroMemory(&wc, sizeof (WNDCLASSW));
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wc.lpszClassName = uiInitialParentClass;
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wc.lpfnWndProc = initialParentWndProc;
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wc.hInstance = hInstance;
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wc.hIcon = hDefaultIcon;
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wc.hCursor = hDefaultCursor;
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wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
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if (RegisterClassW(&wc) == 0)
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return "registering initial parent window class";
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initialParent = CreateWindowExW(0,
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uiInitialParentClass, L"",
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WS_OVERLAPPEDWINDOW,
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0, 0,
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100, 100,
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NULL, NULL, hInstance, NULL);
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if (initialParent == NULL)
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return "creating initial parent window";
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// just to be safe, disable the initial parent so it can't be interacted with accidentally
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// if this causes issues for our controls, we can remove it
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EnableWindow(initialParent, FALSE);
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return NULL;
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}
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@ -0,0 +1,238 @@
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// 10 april 2015
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#include "uipriv_windows.h"
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// All controls in package ui are children of a window of this class.
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// This keeps everything together, makes hiding controls en masse (tab page switching, for instance) easy, and makes the overall design cleaner.
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// In addition, controls that are first created or don't have a parent are considered children of the "initial parent", which is also of this class.
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// This paxxxxxxxxxxxxxxxxxrent is invisible, disabled, and should not be interacted with.
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// TODOs
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// - wiith CTLCOLOR handler: [12:24] <ZeroOne> There's flickering between tabs
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// - with CTLCOLOR handler: [12:24] <ZeroOne> And setting the button text blanked out the entire GUI until I ran my mouse over the elements / [12:25] <ZeroOne> https://dl.dropboxusercontent.com/u/15144168/GUI%20stuff.png / [12:41] <ZeroOne> https://dl.dropboxusercontent.com/u/15144168/stack.png here have another screenshot
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// - I get this too
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#define uiParentClass L"uiParentClass"
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HWND initialParent;
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static void paintControlBackground(HWND hwnd, HDC dc)
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{
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HWND parent;
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RECT r;
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POINT pOrig;
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DWORD le;
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parent = hwnd;
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for (;;) {
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parent = GetParent(parent);
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if (parent == NULL)
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logLastError("error getting parent control of control in paintControlBackground()");
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// wine sends these messages early, yay...
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if (parent == initialParent)
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return;
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// skip groupboxes; they're (supposed to be) transparent
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if (windowClassOf(parent, L"button", NULL) != 0)
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break;
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}
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if (GetWindowRect(hwnd, &r) == 0)
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logLastError("error getting control's window rect in paintControlBackground()");
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// the above is a window rect in screen coordinates; convert to parent coordinates
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SetLastError(0);
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if (MapWindowRect(NULL, parent, &r) == 0) {
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le = GetLastError();
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SetLastError(le); // just to be safe
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if (le != 0)
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logLastError("error getting client origin of control in paintControlBackground()");
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}
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if (SetWindowOrgEx(dc, r.left, r.top, &pOrig) == 0)
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logLastError("error moving window origin in paintControlBackground()");
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SendMessageW(parent, WM_PRINTCLIENT, (WPARAM) dc, PRF_CLIENT);
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if (SetWindowOrgEx(dc, pOrig.x, pOrig.y, NULL) == 0)
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logLastError("error resetting window origin in paintControlBackground()");
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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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static 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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struct parent {
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HWND hwnd;
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uiControl *child;
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intmax_t leftMargin;
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intmax_t topMargin;
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intmax_t rightMargin;
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intmax_t bottomMargin;
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};
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static LRESULT CALLBACK parentWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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struct parent *p;
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CREATESTRUCTW *cs = (CREATESTRUCTW *) lParam;
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HWND control;
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NMHDR *nm = (NMHDR *) lParam;
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RECT r, margin;
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p = (struct parent *) GetWindowLongPtrW(hwnd, GWLP_USERDATA);
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if (p == NULL) {
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if (uMsg == WM_NCCREATE) {
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p = (struct parent *) (cs->lpCreateParams);
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SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LONG_PTR) p);
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// fall through to DefWindowProcW()
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}
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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switch (uMsg) {
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case WM_NCDESTROY:
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// no need to explicitly destroy children; they're already gone by this point (and so are their data structures; they clean up after themselves)
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uiFree(p);
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break; // fall through to DefWindowPocW()
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case WM_COMMAND:
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// bounce back to the control in question
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// except if to the initial parent, in which case act as if the message was ignored
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control = (HWND) lParam;
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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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break; // fall through to DefWindowPocW()
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case WM_NOTIFY:
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// same as WM_COMMAND
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control = nm->hwndFrom;
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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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break; // fall through to DefWindowProcW()
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case WM_CTLCOLORSTATIC:
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case WM_CTLCOLORBTN:
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/*TODO // 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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break; // fall through to DefWindowProcW()
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*/ if (SetBkMode((HDC) wParam, TRANSPARENT) == 0)
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logLastError("error setting transparent background mode to controls in sharedWndProc()");
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paintControlBackground((HWND) lParam, (HDC) wParam);
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return (LRESULT) hollowBrush;
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case WM_WINDOWPOSCHANGED:
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if ((wp->flags & SWP_NOSIZE) != 0)
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break;
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// fall through
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case msgUpdateChild:
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if (p->child == NULL)
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break;
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if (GetClientRect(p->hwnd, &r) == 0)
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logLastError("error getting client rect for resize in parentWndProc()");
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margin.left = p->marginLeft;
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margin.top = p->marginTop;
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margin.right = p->marginRight;
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margin.bottom = p->marginBottom;
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resize(p->child, p->hwnd, r, margin);
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return 0;
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}
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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const char *initParent(HICON hDefaultIcon, HCURSOR hDefaultCursor)
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{
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WNDCLASSW wc;
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ZeroMemory(&wc, sizeof (WNDCLASSW));
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wc.lpszClassName = uiInitialParentClass;
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wc.lpfnWndProc = initialParentWndProc;
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wc.hInstance = hInstance;
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wc.hIcon = hDefaultIcon;
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wc.hCursor = hDefaultCursor;
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wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
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if (RegisterClassW(&wc) == 0)
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return "registering parent window class";
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initialParent = CreateWindowExW(0,
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uiParentClass, L"",
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WS_OVERLAPPEDWINDOW,
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0, 0,
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100, 100,
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NULL, NULL, hInstance, NULL);
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if (initialParent == NULL)
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return "creating initial parent window";
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|
||||
// just to be safe, disable the initial parent so it can't be interacted with accidentally
|
||||
// if this causes issues for our controls, we can remove it
|
||||
EnableWindow(initialParent, FALSE);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static uintptr_t parentHandle(uiParent *p)
|
||||
{
|
||||
struct parent *pp = (struct parent *) (p->Internal);
|
||||
|
||||
return (uintptr_t) (p->hwnd);
|
||||
}
|
||||
|
||||
static void parentSetChild(uiParent *p, uiChild *child)
|
||||
{
|
||||
struct parent *pp = (struct parent *) (p->internal);
|
||||
|
||||
pp->child = child;
|
||||
if (pp->child != NULL)
|
||||
uiControlSetParent(child, p);
|
||||
}
|
||||
|
||||
static void parentSetMargins(uiParent *p, intmax_t left, intmax_t top, intmax_t right, intmax_t bottom)
|
||||
{
|
||||
struct parent *pp = (struct parent *) (p->internal);
|
||||
|
||||
pp->marginLeft = left;
|
||||
pp->marginTop = top;
|
||||
pp->marginRight = right;
|
||||
pp->marginBottom = bottom;
|
||||
}
|
||||
|
||||
static void parentUpdate(uiParent *p)
|
||||
{
|
||||
struct parent *pp = (struct parent *) (p->internal);
|
||||
|
||||
SendMessageW(pp->hwnd, msgUpdateChild, 0, 0);
|
||||
}
|
||||
|
||||
uiParent *uiNewParent(uintptr_t osParent)
|
||||
{
|
||||
}
|
||||
8
ui.h
8
ui.h
|
|
@ -86,12 +86,16 @@ struct uiParent {
|
|||
#define uiParentHandle(p) ((*((p)->Handle))((p)))
|
||||
|
||||
// SetChild sets the uiControl that this uiParent relegates.
|
||||
// It calls uiControl.SetParent().
|
||||
// It calls uiControl.SetParent() which should, in turn, call uiParent.Update().
|
||||
// The uiParent should already not have a child and the uiControl should already not have a parent.
|
||||
//
|
||||
// child can be NULL, in which case the uiParent has no children.
|
||||
// This form should be called by uiControl.RemoveParent().
|
||||
void (*SetChild)(uiParent *p, uiControl *child);
|
||||
#define uiParentSetChild(p, child) ((*((p)->SetChild))((p), (child)))
|
||||
|
||||
// SetMargins sets the margins of the uiParent to the given margins.
|
||||
// It then updates the uiParent to make the margins take effect.
|
||||
// It does not call uiParent.Update(); its caller must.
|
||||
// The units of the margins are backend-defined.
|
||||
// The initial margins are all 0.
|
||||
void (*SetMargins)(uiParent *p, intmax_t left, intmax_t top, intmax_t right, intmax_t bottom);
|
||||
|
|
|
|||
|
|
@ -55,10 +55,6 @@ extern WCHAR *toUTF16(const char *);
|
|||
extern char *toUTF8(const WCHAR *);
|
||||
extern WCHAR *windowText(HWND);
|
||||
|
||||
// container_windows.c
|
||||
extern BOOL sharedWndProc(HWND, UINT, WPARAM, LPARAM, LRESULT *);
|
||||
extern void resize(uiControl *, HWND, RECT, RECT);
|
||||
|
||||
// comctl32_windows.c
|
||||
extern BOOL (*WINAPI fv_SetWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR, DWORD_PTR);
|
||||
extern BOOL (*WINAPI fv_RemoveWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR);
|
||||
|
|
@ -68,6 +64,6 @@ extern const char *initCommonControls(void);
|
|||
// window_windows.c
|
||||
extern ATOM registerWindowClass(HICON, HCURSOR);
|
||||
|
||||
// initparent_windows.c
|
||||
// parent_windows.c
|
||||
extern HWND initialParent;
|
||||
extern const char *initInitialParent(HICON, HCURSOR);
|
||||
extern const char *initParent(HICON, HCURSOR);
|
||||
|
|
|
|||
Loading…
Reference in New Issue