153 lines
3.7 KiB
C++
153 lines
3.7 KiB
C++
// 8 april 2015
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#include "uipriv_windows.hpp"
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// TODO there's alpha darkening of text going on in read-only ones; something is up in our parent logic
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struct uiMultilineEntry {
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uiWindowsControl c;
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HWND hwnd;
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void (*onChanged)(uiMultilineEntry *, void *);
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void *onChangedData;
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BOOL inhibitChanged;
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};
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static BOOL onWM_COMMAND(uiControl *c, HWND hwnd, WORD code, LRESULT *lResult)
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{
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uiMultilineEntry *e = uiMultilineEntry(c);
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if (code != EN_CHANGE)
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return FALSE;
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if (e->inhibitChanged)
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return FALSE;
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(*(e->onChanged))(e, e->onChangedData);
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*lResult = 0;
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return TRUE;
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}
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static void uiMultilineEntryDestroy(uiControl *c)
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{
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uiMultilineEntry *e = uiMultilineEntry(c);
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uiWindowsUnregisterWM_COMMANDHandler(e->hwnd);
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uiWindowsEnsureDestroyWindow(e->hwnd);
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uiFreeControl(uiControl(e));
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}
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uiWindowsControlAllDefaultsExceptDestroy(uiMultilineEntry)
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// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
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#define entryWidth 107 /* this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary */
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// LONGTERM change this for multiline text boxes (longterm because how?)
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#define entryHeight 14
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static void uiMultilineEntryMinimumSize(uiWindowsControl *c, int *width, int *height)
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{
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uiMultilineEntry *e = uiMultilineEntry(c);
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uiWindowsSizing sizing;
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int x, y;
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x = entryWidth;
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y = entryHeight;
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uiWindowsGetSizing(e->hwnd, &sizing);
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uiWindowsSizingDlgUnitsToPixels(&sizing, &x, &y);
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*width = x;
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*height = y;
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}
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static void defaultOnChanged(uiMultilineEntry *e, void *data)
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{
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// do nothing
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}
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char *uiMultilineEntryText(uiMultilineEntry *e)
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{
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char *out;
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out = uiWindowsWindowText(e->hwnd);
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CRLFtoLF(out);
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return out;
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}
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void uiMultilineEntrySetText(uiMultilineEntry *e, const char *text)
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{
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char *crlf;
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// doing this raises an EN_CHANGED
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e->inhibitChanged = TRUE;
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crlf = LFtoCRLF(text);
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uiWindowsSetWindowText(e->hwnd, crlf);
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uiprivFree(crlf);
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e->inhibitChanged = FALSE;
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// don't queue the control for resize; entry sizes are independent of their contents
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}
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void uiMultilineEntryAppend(uiMultilineEntry *e, const char *text)
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{
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LRESULT n;
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char *crlf;
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WCHAR *wtext;
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// doing this raises an EN_CHANGED
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e->inhibitChanged = TRUE;
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// TODO preserve selection? caret? what if caret used to be at end?
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// TODO scroll to bottom?
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n = SendMessageW(e->hwnd, WM_GETTEXTLENGTH, 0, 0);
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SendMessageW(e->hwnd, EM_SETSEL, n, n);
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crlf = LFtoCRLF(text);
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wtext = toUTF16(crlf);
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uiprivFree(crlf);
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SendMessageW(e->hwnd, EM_REPLACESEL, FALSE, (LPARAM) wtext);
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uiprivFree(wtext);
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e->inhibitChanged = FALSE;
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}
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void uiMultilineEntryOnChanged(uiMultilineEntry *e, void (*f)(uiMultilineEntry *, void *), void *data)
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{
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e->onChanged = f;
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e->onChangedData = data;
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}
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int uiMultilineEntryReadOnly(uiMultilineEntry *e)
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{
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return (getStyle(e->hwnd) & ES_READONLY) != 0;
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}
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void uiMultilineEntrySetReadOnly(uiMultilineEntry *e, int readonly)
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{
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WPARAM ro;
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ro = (WPARAM) FALSE;
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if (readonly)
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ro = (WPARAM) TRUE;
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if (SendMessage(e->hwnd, EM_SETREADONLY, ro, 0) == 0)
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logLastError(L"error making uiMultilineEntry read-only");
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}
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static uiMultilineEntry *finishMultilineEntry(DWORD style)
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{
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uiMultilineEntry *e;
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uiWindowsNewControl(uiMultilineEntry, e);
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e->hwnd = uiWindowsEnsureCreateControlHWND(WS_EX_CLIENTEDGE,
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L"edit", L"",
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ES_AUTOVSCROLL | ES_LEFT | ES_MULTILINE | ES_NOHIDESEL | ES_WANTRETURN | WS_TABSTOP | WS_VSCROLL | style,
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hInstance, NULL,
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TRUE);
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uiWindowsRegisterWM_COMMANDHandler(e->hwnd, onWM_COMMAND, uiControl(e));
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uiMultilineEntryOnChanged(e, defaultOnChanged, NULL);
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return e;
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}
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uiMultilineEntry *uiNewMultilineEntry(void)
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{
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return finishMultilineEntry(0);
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}
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uiMultilineEntry *uiNewNonWrappingMultilineEntry(void)
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{
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return finishMultilineEntry(WS_HSCROLL | ES_AUTOHSCROLL);
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}
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