109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
// 7 april 2015
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#include "uipriv_windows.h"
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struct button {
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void (*onClicked)(uiControl *, void *);
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void *onClickedData;
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};
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static BOOL onWM_COMMAND(uiControl *c, WORD code, LRESULT *lResult)
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{
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struct button *b = (struct button *) (c->data);
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if (code != BN_CLICKED)
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return FALSE;
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(*(b->onClicked))(c, b->onClickedData);
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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, NMHDR *nm, 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)
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{
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struct button *b = (struct button *) (c->data);
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uiFree(b);
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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 buttonHeight 14
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static void preferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
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{
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HWND hwnd;
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SIZE size;
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hwnd = (HWND) uiControlHandle(c);
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// try the comctl32 version 6 way
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size.cx = 0; // explicitly ask for ideal size
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size.cy = 0;
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if (SendMessageW(hwnd, BCM_GETIDEALSIZE, 0, (LPARAM) (&size)) != FALSE) {
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*width = size.cx;
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*height = size.cy;
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return;
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}
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// that didn't work; fall back to using Microsoft's metrics
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// Microsoft says to use a fixed width for all buttons; this isn't good enough
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// use the text width instead, with some edge padding
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*width = uiWindowsWindowTextWidth(hwnd) + (2 * GetSystemMetrics(SM_CXEDGE));
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*height = uiDlgUnitsToY(buttonHeight, d->sys->baseY);
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}
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static void defaultOnClicked(uiControl *c, void *data)
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{
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// do nothing
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}
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uiControl *uiNewButton(const char *text)
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{
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uiControl *c;
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struct button *b;
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uiWindowsNewControlParams p;
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WCHAR *wtext;
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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_PUSHBUTTON | WS_TABSTOP;
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p.hInstance = hInstance;
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p.useStandardControlFont = TRUE;
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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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c = uiWindowsNewControl(&p);
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uiFree(wtext);
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c->preferredSize = preferredSize;
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b = uiNew(struct button);
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b->onClicked = defaultOnClicked;
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c->data = b;
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return c;
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}
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char *uiButtonText(uiControl *c)
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{
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return uiWindowsControlText(c);
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}
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void uiButtonSetText(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 uiButtonOnClicked(uiControl *c, void (*f)(uiControl *, void *), void *data)
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{
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struct button *b = (struct button *) (c->data);
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b->onClicked = f;
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b->onClickedData = data;
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}
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