libui/windows/combobox.c

66 lines
1.7 KiB
C

// 20 may 2015
#include "uipriv_windows.h"
// we as Common Controls 6 users don't need to worry about the height of comboboxes; see http://blogs.msdn.com/b/oldnewthing/archive/2006/03/10/548537.aspx
struct uiCombobox {
uiWindowsControl c;
HWND hwnd;
};
uiWindowsDefineControl(
uiCombobox, // type name
uiComboboxType // type function
)
// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
#define comboboxWidth 107 /* this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary */
#define comboboxHeight 14
static void minimumSize(uiWindowsControl *c, uiWindowsSizing *d, intmax_t *width, intmax_t *height)
{
*width = uiWindowsDlgUnitsToX(comboboxWidth, d->BaseX);
*height = uiWindowsDlgUnitsToY(comboboxHeight, d->BaseY);
}
void uiComboboxAppend(uiCombobox *c, const char *text)
{
WCHAR *wtext;
LRESULT res;
wtext = toUTF16(text);
res = SendMessageW(c->hwnd, CB_ADDSTRING, 0, (LPARAM) wtext);
if (res == (LRESULT) CB_ERR)
logLastError("error appending item to uiCombobox");
else if (res == (LRESULT) CB_ERRSPACE)
logLastError("memory exhausted appending item to uiCombobox");
uiFree(wtext);
}
static uiCombobox *finishNewCombobox(DWORD style)
{
uiCombobox *c;
c = (uiCombobox *) uiNewControl(uiComboboxType());
c->hwnd = uiWindowsEnsureCreateControlHWND(WS_EX_CLIENTEDGE,
L"combobox", L"",
style | WS_TABSTOP,
hInstance, NULL,
TRUE);
uiWindowsFinishNewControl(c, uiCombobox);
return c;
}
uiCombobox *uiNewCombobox(void)
{
return finishNewCombobox(CBS_DROPDOWNLIST);
}
uiCombobox *uiNewEditableCombobox(void)
{
return finishNewCombobox(CBS_DROPDOWN);
}