void TaskFunc() {
var lastStatus = new IMEStatusInfo();
var currentStatus = new IMEStatusInfo();
var lastChangeTime = DateTime.MinValue;
while (!_lockObject.CancelTokenSource.IsCancellationRequested) {
var now = DateTime.Now;
lastStatus = currentStatus;
updateIMEStatusInfo(ref currentStatus);
bool somethingChanged = !currentStatus.Equals(lastStatus);
bool windowMoving = (currentStatus.ClientBounds != lastStatus.ClientBounds);
lock (_lockObject) {
if (_lockObject.SettingChanged) {
cacheSettings();
somethingChanged = true;
}
_lockObject.IMEStatusInfo = currentStatus;
_lockObject.LastChecked = now;
}
if (somethingChanged) {
lastChangeTime = now;
#if DEBUG
Log.I(currentStatus.ToString());
#endif
raiseUpdatedEvent();
}
if (windowMoving) {
Thread.Sleep(20);
}
else if (now - lastChangeTime < new TimeSpan(0, 10, 0)) {
Thread.Sleep(100);
}
else {
Thread.Sleep(1000);
}
}
Log.I("Monitoring task is going to exit...");
}
void updateIMEStatusInfo(ref IMEStatusInfo status) {
// 【C#,WinAPI】バックグラウンドで現在のIME状態を取得 - 行き当たりばったり
// http://sturnus.hateblo.jp/entry/2014/05/10/234603
GUITHREADINFO gti = new GUITHREADINFO();
gti.cbSize = Marshal.SizeOf(gti);
if (WinApi.GetGUIThreadInfo(0, ref gti) != 0) {
bool windowVisible = WinApi.IsWindowVisible(gti.hwndActive);
bool windowSwitched = (status.WindowHandle != gti.hwndActive);
bool focusSwitched = (status.ClientHandle != gti.hwndFocus);
if (windowSwitched) {
status.WindowText = WinApi.GetWindowText(gti.hwndActive);
try {
status.ExecutableFileName = WinApi.GetExecutableFileNameFromWindowHandle(gti.hwndActive);
}
catch {
status.ExecutableFileName = string.Empty;
}
}
if (focusSwitched) {
status.ClientClassName = WinApi.GetClassName(gti.hwndFocus);
}
if (windowVisible) {
IntPtr hWndIME = WinApi.ImmGetDefaultIMEWnd(gti.hwndFocus);
status.IMEEnabled = (WinApi.SendMessage(hWndIME, 0x283, 0x5, 0) != 0);
status.ClientBounds = WinApi.GetWindowRect(gti.hwndFocus);
}
if (windowSwitched || focusSwitched) {
// 無視リストに当たった場合は無かったことにする
bool ignored = false;
foreach (var regex in _cachedIgnoreList) {
if (regex.IsMatch(status.ExecutableFileName) ||
regex.IsMatch(status.WindowText) ||
regex.IsMatch(status.ClientClassName)) {
ignored = true;
break;
}
}
status.Ignored = ignored;
}
status.WindowHandle = gti.hwndActive;
status.ClientHandle = gti.hwndFocus;
status.WindowVisible = windowVisible;
}
}
private void updateBorder()
{
var imeInfo = _monitor.IMEStatus;
_lastImeStatus = imeInfo;
if (imeInfo.WindowHandle == this.Handle || !imeInfo.WindowVisible || imeInfo.Ignored) {
this.Opacity = 0f;
setTopMost(false);
}
else {
var borderWidth = imeInfo.IMEEnabled ?
_settings.ImeOnBorderStyle.Width :
_settings.ImeOffBorderStyle.Width;
Rectangle windowRect = imeInfo.ClientBounds;
windowRect.Inflate(borderWidth, borderWidth);
// スクリーン外にはみ出た部分を押し込む
Rectangle screenRect = Screen.FromHandle(imeInfo.ClientHandle).Bounds;
{
int left = windowRect.X;
int top = windowRect.Y;
int right = windowRect.Right;
int bottom = windowRect.Bottom;
if (left < screenRect.X) left = screenRect.X;
if (top < screenRect.Y) top = screenRect.Y;
if (right > screenRect.Right) right = screenRect.Right;
if (bottom > screenRect.Bottom) bottom = screenRect.Bottom;
windowRect = Rectangle.FromLTRB(left, top, right, bottom);
}
if (this.Size == windowRect.Size) {
this.Location = windowRect.Location;
}
else {
var path = new System.Drawing.Drawing2D.GraphicsPath();
var w = windowRect.Width;
var h = windowRect.Height;
var border2x = borderWidth * 2;
path.AddPie(0, 0, border2x, border2x, 180, 90);
path.AddPie(w - border2x, 0, border2x, border2x, 270, 90);
path.AddPie(0, h - border2x, border2x, border2x, 90, 90);
path.AddPie(w - border2x, h - border2x, border2x, border2x, 0, 90);
path.AddRectangle(new Rectangle(0, borderWidth, borderWidth, h - border2x));
path.AddRectangle(new Rectangle(borderWidth, 0, w - border2x, borderWidth));
path.AddRectangle(new Rectangle(w - borderWidth, borderWidth, borderWidth, h - border2x));
path.AddRectangle(new Rectangle(borderWidth, h - borderWidth, w - border2x, borderWidth));
this.Region = new Region(path);
this.Bounds = windowRect;
}
this.BackColor = imeInfo.IMEEnabled ?
_settings.ImeOnBorderStyle.GetColor() :
_settings.ImeOffBorderStyle.GetColor();
this.Opacity = imeInfo.IMEEnabled ?
_settings.ImeOnBorderStyle.Opacity :
_settings.ImeOffBorderStyle.Opacity;
setTopMost(true);
}
}