110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
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// 7 april 2015
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#include "uipriv_windows.h"
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struct checkbox {
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uiControl *c;
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void (*onToggled)(uiControl *, void *);
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void *onToggledData;
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};
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#define C(x) ((struct checkbox *) (x))
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static BOOL onWM_COMMAND(uiControl *c, WPARAM wParam, LPARAM lParam, void *data, LRESULT *lResult)
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{
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HWND hwnd;
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WPARAM check;
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if (HIWORD(wParam) != BN_CLICKED)
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return FALSE;
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// we didn't use BS_AUTOCHECKBOX (see controls_windows.go) so we have to manage the check state ourselves
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hwnd = (HWND) uiControlHandle(c);
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check = BST_CHECKED;
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if (SendMessage(hwnd, BM_GETCHECK, 0, 0) == BST_CHECKED)
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check = BST_UNCHECKED;
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SendMessage(hwnd, BM_SETCHECK, check, 0);
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(*(C(data)->onToggled))(c, C(data)->onToggledData);
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*lResult = 0;
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return TRUE;
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}
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static BOOL onWM_NOTIFY(uiControl *c, WPARAM wParam, LPARAM lParam, void *data, LRESULT *lResult)
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{
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return FALSE;
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}
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static void onWM_DESTROY(uiControl *c, void *data)
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{
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struct checkbox *cc = (struct checkbox *) data;
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uiFree(cc);
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}
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// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
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#define checkboxHeight 10
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// from http://msdn.microsoft.com/en-us/library/windows/desktop/bb226818%28v=vs.85%29.aspx
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#define checkboxXFromLeftOfBoxToLeftOfLabel 12
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static void preferredSize(uiControl *c, int baseX, int baseY, LONG internalLeading, intmax_t *width, intmax_t *height)
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{
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*width = uiDlgUnitToX(checkboxXFromLeftOfBoxToLeftOfLabel, baseX) + uiWindowsWindowTextWidth((HWND) uiControlHandle(c));
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*height = uiDlgUnitToY(checkboxHeight, baseY);
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}
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static void defaultOnToggled(uiControl *c, void *data)
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{
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// do nothing
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}
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uiControl *uiNewCheckbox(const char *text)
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{
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struct checkbox *c;
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uiWindowsNewControlParams p;
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WCHAR *wtext;
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HWND hwnd;
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c = uiNew(struct checkbox);
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p.dwExStyle = 0;
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p.lpClassName = L"button";
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wtext = toUTF16(text);
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p.lpWindowName = wtext;
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p.dwStyle = BS_CHECKBOX | WS_TABSTOP;
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p.hInstance = hInstance;
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p.onWM_COMMAND = onWM_COMMAND;
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p.onWM_NOTIFY = onWM_NOTIFY;
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p.onWM_DESTROY = onWM_DESTROY;
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p.onCommandNotifyDestroyData = c;
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p.preferredSize = preferredSize;
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p.data = c;
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c->c = uiWindowsNewControl(&p);
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uiFree(wtext);
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hwnd = (HWND) uiControlHandle(c->c);
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SendMessageW(hwnd, WM_SETFONT, (WPARAM) hMessageFont, (LPARAM) TRUE);
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c->onToggled = defaultOnToggled;
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return c->c;
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}
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char *uiCheckboxText(uiControl *c)
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{
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return uiWindowsControlText(c);
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}
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void uiCheckboxSetText(uiControl *c, const char *text)
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{
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uiWindowsControlSetText(c, text);
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}
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void uiCheckboxOnToggled(uiControl *c, void (*f)(uiControl *, void *), void *data)
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{
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struct checkbox *cc;
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cc = (struct checkbox *) uiWindowsControlData(c);
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cc->onToggled = f;
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cc->onToggledData = data;
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}
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