118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
// 6 april 2015
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#include "uipriv_windows.h"
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typedef struct uiSingleHWNDControl uiSingleHWNDControl;
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struct uiSingleHWNDControl {
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uiControl control;
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HWND hwnd;
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BOOL (*onWM_COMMAND)(uiControl *, WPARAM, LPARAM, void *, LRESULT *);
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BOOL (*onWM_NOTIFY)(uiControl *, WPARAM, LPARAM, void *, LRESULT *);
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void (*onWM_DESTROY)(uiControl *, void *);
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void *onCommandNotifyDestroyData;
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void (*preferredSize)(uiControl *, int, int, LONG, intmax_t *, intmax_t *);
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void *data;
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};
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#define S(c) ((uiSingleHWNDControl *) (c))
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static void singleDestroy(uiControl *c)
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{
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if (DestroyWindow(S(c)->hwnd) == 0)
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logLastError("error destroying control in singleDestroy()");
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// the uiSingleHWNDControl is destroyed in the subclass procedure
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}
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static uintptr_t singleHandle(uiControl *c)
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{
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return (uintptr_t) (S(c)->hwnd);
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}
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static void singleSetParent(uiControl *c, uintptr_t parentHWND)
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{
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if (SetParent(S(c)->hwnd, (HWND) parentHWND) == NULL)
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logLastError("error changing control parent in singleSetParent()");
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}
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static uiSize singlePreferredSize(uiControl *c, uiSizing *d)
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{
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uiSize size;
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(*(S(c)->preferredSize))(c,
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d->baseX, d->baseY, d->internalLeading,
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&(size.width), &(size.height));
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return size;
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}
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static void singleResize(uiControl *c, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
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{
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if (MoveWindow(S(c)->hwnd, x, y, width, height, TRUE) == 0)
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logLastError("error moving control in singleResize()");
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}
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static LRESULT CALLBACK singleSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
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{
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uiSingleHWNDControl *c = (uiSingleHWNDControl *) dwRefData;
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LRESULT lResult;
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switch (uMsg) {
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case msgCOMMAND:
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if ((*(c->onWM_COMMAND))((uiControl *) c, wParam, lParam, c->onCommandNotifyDestroyData, &lResult) != FALSE)
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return lResult;
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break;
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case msgNOTIFY:
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if ((*(c->onWM_NOTIFY))((uiControl *) c, wParam, lParam, c->onCommandNotifyDestroyData, &lResult) != FALSE)
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return lResult;
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break;
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case WM_DESTROY:
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(*(c->onWM_DESTROY))((uiControl *) c, c->onCommandNotifyDestroyData);
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uiFree(c);
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break;
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case WM_NCDESTROY:
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if ((*fv_RemoveWindowSubclass)(hwnd, singleSubclassProc, uIdSubclass) == FALSE)
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logLastError("error removing Windows control subclass in singleSubclassProc()");
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break;
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}
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return (*fv_DefSubclassProc)(hwnd, uMsg, wParam, lParam);
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}
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uiControl *uiWindowsNewControl(uiWindowsNewControlParams *p)
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{
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uiSingleHWNDControl *c;
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c = uiNew(uiSingleHWNDControl);
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c->hwnd = CreateWindowExW(p->dwExStyle,
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p->lpClassName, L"",
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p->dwStyle | WS_CHILD | WS_VISIBLE,
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0, 0,
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100, 100,
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// TODO specify control IDs properly
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initialParent, NULL, p->hInstance, NULL);
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if (c->hwnd == NULL)
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logLastError("error creating control in uiWindowsNewControl()");
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c->control.destroy = singleDestroy;
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c->control.handle = singleHandle;
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c->control.setParent = singleSetParent;
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c->control.preferredSize = singlePreferredSize;
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c->control.resize = singleResize;
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c->onWM_COMMAND = p->onWM_COMMAND;
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c->onWM_NOTIFY = p->onWM_NOTIFY;
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c->onWM_DESTROY = p->onWM_DESTROY;
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c->onCommandNotifyDestroyData = p->onCommandNotifyDestroyData;
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c->preferredSize = p->preferredSize;
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c->data = p->data;
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if ((*fv_SetWindowSubclass)(c->hwnd, singleSubclassProc, 0, (DWORD_PTR) c) == FALSE)
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logLastError("error subclassing Windows control in uiWindowsNewControl()");
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return (uiControl *) c;
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}
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void *uiWindowsControlData(uiControl *c)
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{
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return S(c)->data;
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}
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