diff options
Diffstat (limited to 'src/libui_sdl/libui/windows/editablecombo.cpp')
-rw-r--r-- | src/libui_sdl/libui/windows/editablecombo.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/libui_sdl/libui/windows/editablecombo.cpp b/src/libui_sdl/libui/windows/editablecombo.cpp new file mode 100644 index 0000000..9e1fdbf --- /dev/null +++ b/src/libui_sdl/libui/windows/editablecombo.cpp @@ -0,0 +1,115 @@ +// 20 may 2015 +#include "uipriv_windows.hpp" + +// 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 uiEditableCombobox { + uiWindowsControl c; + HWND hwnd; + void (*onChanged)(uiEditableCombobox *, void *); + void *onChangedData; +}; + +static BOOL onWM_COMMAND(uiControl *cc, HWND hwnd, WORD code, LRESULT *lResult) +{ + uiEditableCombobox *c = uiEditableCombobox(cc); + + if (code == CBN_SELCHANGE) { + // like on OS X, this is sent before the edit has been updated :( + if (PostMessage(parentOf(hwnd), + WM_COMMAND, + MAKEWPARAM(GetWindowLongPtrW(hwnd, GWLP_ID), CBN_EDITCHANGE), + (LPARAM) hwnd) == 0) + logLastError(L"error posting CBN_EDITCHANGE after CBN_SELCHANGE"); + *lResult = 0; + return TRUE; + } + if (code != CBN_EDITCHANGE) + return FALSE; + (*(c->onChanged))(c, c->onChangedData); + *lResult = 0; + return TRUE; +} + +void uiEditableComboboxDestroy(uiControl *cc) +{ + uiEditableCombobox *c = uiEditableCombobox(cc); + + uiWindowsUnregisterWM_COMMANDHandler(c->hwnd); + uiWindowsEnsureDestroyWindow(c->hwnd); + uiFreeControl(uiControl(c)); +} + +uiWindowsControlAllDefaultsExceptDestroy(uiEditableCombobox) + +// 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; LONGTERM */ +#define comboboxHeight 14 /* LONGTERM: is this too high? */ + +static void uiEditableComboboxMinimumSize(uiWindowsControl *cc, int *width, int *height) +{ + uiEditableCombobox *c = uiEditableCombobox(cc); + uiWindowsSizing sizing; + int x, y; + + x = comboboxWidth; + y = comboboxHeight; + uiWindowsGetSizing(c->hwnd, &sizing); + uiWindowsSizingDlgUnitsToPixels(&sizing, &x, &y); + *width = x; + *height = y; +} + +static void defaultOnChanged(uiEditableCombobox *c, void *data) +{ + // do nothing +} + +void uiEditableComboboxAppend(uiEditableCombobox *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(L"error appending item to uiEditableCombobox"); + else if (res == (LRESULT) CB_ERRSPACE) + logLastError(L"memory exhausted appending item to uiEditableCombobox"); + uiFree(wtext); +} + +char *uiEditableComboboxText(uiEditableCombobox *c) +{ + return uiWindowsWindowText(c->hwnd); +} + +void uiEditableComboboxSetText(uiEditableCombobox *c, const char *text) +{ + // does not trigger any notifications + uiWindowsSetWindowText(c->hwnd, text); +} + +void uiEditableComboboxOnChanged(uiEditableCombobox *c, void (*f)(uiEditableCombobox *c, void *data), void *data) +{ + c->onChanged = f; + c->onChangedData = data; +} + +uiEditableCombobox *uiNewEditableCombobox(void) +{ + uiEditableCombobox *c; + + uiWindowsNewControl(uiEditableCombobox, c); + + c->hwnd = uiWindowsEnsureCreateControlHWND(WS_EX_CLIENTEDGE, + L"combobox", L"", + CBS_DROPDOWN | WS_TABSTOP, + hInstance, NULL, + TRUE); + + uiWindowsRegisterWM_COMMANDHandler(c->hwnd, onWM_COMMAND, uiControl(c)); + uiEditableComboboxOnChanged(c, defaultOnChanged, NULL); + + return c; +} |