@Override LRESULT WM_INPUTLANGCHANGE(long /*int*/ wParam, long /*int*/ lParam) { LRESULT result = super.WM_INPUTLANGCHANGE(wParam, lParam); if (caret != null && caret.isFocusCaret()) { caret.setIMEFont(); caret.resizeIME(); } return result; }
@Override LRESULT WM_KILLFOCUS(long /*int*/ wParam, long /*int*/ lParam) { if (ime != null) { LRESULT result = ime.WM_KILLFOCUS(wParam, lParam); if (result != null) return result; } Caret caret = this.caret; LRESULT result = super.WM_KILLFOCUS(wParam, lParam); if (caret != null) caret.killFocus(); return result; }
@Override long /*int*/ windowProc(long /*int*/ hwnd, int msg, long /*int*/ wParam, long /*int*/ lParam) { if (msg == Display.SWT_RESTORECARET) { if ((state & CANVAS) != 0) { if (caret != null) { caret.killFocus(); caret.setFocus(); return 1; } } } return super.windowProc(hwnd, msg, wParam, lParam); }
/** * Sets the receiver's caret. * * <p>The caret for the control is automatically hidden and shown when the control is painted or * resized, when focus is gained or lost and when an the control is scrolled. To avoid drawing on * top of the caret, the programmer must hide and show the caret when drawing in the window any * other time. * * @param caret the new caret for the receiver, may be null * @exception IllegalArgumentException * <ul> * <li>ERROR_INVALID_ARGUMENT - if the caret has been disposed * </ul> * * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> */ public void setCaret(Caret caret) { checkWidget(); Caret newCaret = caret; Caret oldCaret = this.caret; this.caret = newCaret; if (hasFocus()) { if (oldCaret != null) oldCaret.killFocus(); if (newCaret != null) { if (newCaret.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); newCaret.setFocus(); } } }
@Override LRESULT WM_WINDOWPOSCHANGING(long /*int*/ wParam, long /*int*/ lParam) { LRESULT result = super.WM_WINDOWPOSCHANGING(wParam, lParam); if (result != null) return result; /* * Bug in Windows. When a window with style WS_EX_LAYOUTRTL * that contains a caret is resized, Windows does not move the * caret in relation to the mirrored origin in the top right. * The fix is to hide the caret in WM_WINDOWPOSCHANGING and * show the caret in WM_WINDOWPOSCHANGED. */ boolean isFocus = (style & SWT.RIGHT_TO_LEFT) != 0 && caret != null && caret.isFocusCaret(); if (isFocus) caret.killFocus(); return result; }
@Override void releaseChildren(boolean destroy) { if (caret != null) { caret.release(false); caret = null; } if (ime != null) { ime.release(false); ime = null; } super.releaseChildren(destroy); }
@Override LRESULT WM_IME_COMPOSITION(long /*int*/ wParam, long /*int*/ lParam) { if (ime != null) { LRESULT result = ime.WM_IME_COMPOSITION(wParam, lParam); if (result != null) return result; } /* * Bug in Windows. On Korean Windows XP, the IME window * for the Korean Input System (MS-IME 2002) always opens * in the top left corner of the screen, despite the fact * that ImmSetCompositionWindow() was called to position * the IME when focus is gained. The fix is to position * the IME on every WM_IME_COMPOSITION message. */ if (!OS.IsWinCE && OS.WIN32_VERSION == OS.VERSION(5, 1)) { if (OS.IsDBLocale) { short langID = OS.GetSystemDefaultUILanguage(); short primaryLang = OS.PRIMARYLANGID(langID); if (primaryLang == OS.LANG_KOREAN) { if (caret != null && caret.isFocusCaret()) { POINT ptCurrentPos = new POINT(); if (OS.GetCaretPos(ptCurrentPos)) { COMPOSITIONFORM lpCompForm = new COMPOSITIONFORM(); lpCompForm.dwStyle = OS.CFS_POINT; lpCompForm.x = ptCurrentPos.x; lpCompForm.y = ptCurrentPos.y; long /*int*/ hIMC = OS.ImmGetContext(handle); OS.ImmSetCompositionWindow(hIMC, lpCompForm); OS.ImmReleaseContext(handle, hIMC); } } } } } return super.WM_IME_COMPOSITION(wParam, lParam); }
@Override LRESULT WM_SIZE(long /*int*/ wParam, long /*int*/ lParam) { LRESULT result = super.WM_SIZE(wParam, lParam); if (caret != null && caret.isFocusCaret()) caret.resizeIME(); return result; }
@Override LRESULT WM_SETFOCUS(long /*int*/ wParam, long /*int*/ lParam) { LRESULT result = super.WM_SETFOCUS(wParam, lParam); if (caret != null && caret.isFocusCaret()) caret.setFocus(); return result; }
@Override public void setFont(Font font) { checkWidget(); if (caret != null) caret.setFont(font); super.setFont(font); }
void scrollInPixels(int destX, int destY, int x, int y, int width, int height, boolean all) { forceResize(); boolean isFocus = caret != null && caret.isFocusCaret(); if (isFocus) caret.killFocus(); RECT sourceRect = new RECT(); OS.SetRect(sourceRect, x, y, x + width, y + height); RECT clientRect = new RECT(); OS.GetClientRect(handle, clientRect); if (OS.IntersectRect(clientRect, sourceRect, clientRect)) { if (OS.IsWinCE) { OS.UpdateWindow(handle); } else { int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); } } int deltaX = destX - x, deltaY = destY - y; if (findImageControl() != null) { if (OS.IsWinCE) { OS.InvalidateRect(handle, sourceRect, true); } else { int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; if (all) flags |= OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, sourceRect, 0, flags); } OS.OffsetRect(sourceRect, deltaX, deltaY); if (OS.IsWinCE) { OS.InvalidateRect(handle, sourceRect, true); } else { int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; if (all) flags |= OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, sourceRect, 0, flags); } } else { int flags = OS.SW_INVALIDATE | OS.SW_ERASE; /* * Feature in Windows. If any child in the widget tree partially * intersects the scrolling rectangle, Windows moves the child * and copies the bits that intersect the scrolling rectangle but * does not redraw the child. * * Feature in Windows. When any child in the widget tree does not * intersect the scrolling rectangle but the parent does intersect, * Windows does not move the child. This is the documented (but * strange) Windows behavior. * * The fix is to not use SW_SCROLLCHILDREN and move the children * explicitly after scrolling. */ // if (all) flags |= OS.SW_SCROLLCHILDREN; OS.ScrollWindowEx(handle, deltaX, deltaY, sourceRect, null, 0, null, flags); } if (all) { Control[] children = _getChildren(); for (int i = 0; i < children.length; i++) { Control child = children[i]; Rectangle rect = child.getBoundsInPixels(); if (Math.min(x + width, rect.x + rect.width) >= Math.max(x, rect.x) && Math.min(y + height, rect.y + rect.height) >= Math.max(y, rect.y)) { child.setLocationInPixels(rect.x + deltaX, rect.y + deltaY); } } } if (isFocus) caret.setFocus(); }
@Override void reskinChildren(int flags) { if (caret != null) caret.reskin(flags); if (ime != null) ime.reskin(flags); super.reskinChildren(flags); }