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