private void renderPanel_Paint(object sender, PaintEventArgs e)
{
Graphics gfx = e.Graphics;
// skip repainting if we're refreshing window state
// because we might not be the only callers the check is here
if (windowRefresh)
{
return;
}
Brush textColor;
Pen outlineColor;
float x;
float y;
float width;
float height;
Point cursor = renderPanel.PointToClient(Cursor.Position); // make the cursor panel space
double distance = 0;
double closestDistance = double.MaxValue;
WindowInfo nearest = null;
float scaleX = renderPanel.DisplayRectangle.Width / (float)(maxBounds.Width);
float scaleY = renderPanel.DisplayRectangle.Height / (float)(maxBounds.Height);
if (!mouseDown)
{
//calc closest
foreach (WindowInfo window in windowData)
{
//ignore if minimised
if (window.screenPosition.X == -32000 && window.screenPosition.Y == -32000)
{
continue;
}
//prevent hilarous bug
if (window.hwnd == Handle)
{
continue;
}
x = (maxBounds.X + window.screenPosition.X + window.screenPosition.Width / 2) * scaleX;
y = (maxBounds.Y + window.screenPosition.Y + window.screenPosition.Height / 2) * scaleY;
distance = Distance(cursor, x, y);
if (distance < closestDistance)
{
nearest = window;
closestDistance = distance;
}
}
if (closestDistance < maxDistanceToSelectClosest)
{
closest = nearest; // ya ya
}
else
{
closest = null;
}
}
foreach (WindowInfo window in windowData)
{
window.UpdateLocation();
//ignore if minimised
if (window.screenPosition.X == -32000 && window.screenPosition.Y == -32000)
{
continue;
}
//draw the closest last
if (window == closest)
{
continue;
}
outlineColor = windowNormalOutlinePen;
textColor = windowNormalNameBrush;
if (window.hwnd == Handle)
{
outlineColor = Pens.Gray;
textColor = Brushes.Gray;
}
x = (maxBounds.X + window.screenPosition.X) * scaleX;
y = (maxBounds.Y + window.screenPosition.Y) * scaleY;
width = window.screenPosition.Width * scaleX;
height = window.screenPosition.Height * scaleY;
gfx.DrawRectangle(outlineColor,
x,
y,
width,
height);
//cross
gfx.DrawLine(outlineColor, x + (width / 2) - 5, y + (height / 2) - 5, x + (width / 2) + 5, y + (height / 2) + 5);
gfx.DrawLine(outlineColor, x + (width / 2) + 5, y + (height / 2) - 5, x + (width / 2) - 5, y + (height / 2) + 5);
gfx.DrawString(window.windowName, smallWindowFont, textColor, x, y);
distance = Distance(cursor, x + (window.screenPosition.Width / 2 * scaleX), y + (window.screenPosition.Height / 2 * scaleY));
gfx.DrawString(Math.Round(distance).ToString(), smallWindowFont, textColor, x, y + 15);
}
if (closest != null)
{
x = (maxBounds.X + closest.screenPosition.X) * scaleX;
y = (maxBounds.Y + closest.screenPosition.Y) * scaleY;
width = closest.screenPosition.Width * scaleX;
height = closest.screenPosition.Height * scaleY;
outlineColor = windowCloestOutlinePen;
textColor = windowClosestNameBrush;
if (mouseDown)
{
//cursor which is in panel space
//but scale is based on the panel and max bounds not screen
//ie we need to scale back up
if (grabPointOffset == Point.Empty)
{
grabPointOffset.X = (int)(cursor.X - x);
grabPointOffset.Y = (int)(cursor.Y - y);
}
int newPosX = (int)((cursor.X - grabPointOffset.X) / scaleX);
int newPosY = (int)((cursor.Y - grabPointOffset.Y) / scaleY);
//currently in max bound space but SetWindowPos uses screen space
//since maxBounds is a superset of screenspace we just need to adjust it with an offset
Win32Interop.SetWindowPos(closest.hwnd, 0, newPosX - maxBounds.X, newPosY - maxBounds.Y, 0, 0,
Win32Interop.SWP_NOACTIVATE | Win32Interop.SWP_NOSIZE | Win32Interop.SWP_NOZORDER | Win32Interop.SWP_NOOWNERZORDER | Win32Interop.SWP_DEFERERASE);
outlineColor = windowMovingOutlinePen;
textColor = windowMovingNameBrush;
}
gfx.FillRectangle(new SolidBrush(Color.FromArgb(180, backgroundColor)), x, y, width, height);
//cross
gfx.DrawLine(outlineColor, x + (width / 2) - 5, y + (height / 2) - 5, x + (width / 2) + 5, y + (height / 2) + 5);
gfx.DrawLine(outlineColor, x + (width / 2) + 5, y + (height / 2) - 5, x + (width / 2) - 5, y + (height / 2) + 5);
gfx.DrawString(closest.windowName, smallWindowFont, textColor,
x,
y);
gfx.DrawRectangle(outlineColor,
x,
y,
width,
height);
distance = Distance(cursor, x + (closest.screenPosition.Width / 2 * scaleX), y + (closest.screenPosition.Height / 2 * scaleY));
gfx.DrawString(Math.Round(distance).ToString(), smallWindowFont, textColor,
x,
y + 15);
Win32Interop.WINDOWINFO info = new Win32Interop.WINDOWINFO();
info.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(info);
Win32Interop.GetWindowInfo(closest.hwnd, ref info);
gfx.DrawString("Styles: " + Win32Interop.WindowStyles(info.dwStyle), smallWindowFont, textColor,
x,
y + 30);
gfx.DrawString("ExStyles: " + Win32Interop.WindowExStyles(info.dwExStyle), smallWindowFont, textColor,
x,
y + 45);
gfx.DrawString("Atom: " + info.atomWindowType.ToString(), smallWindowFont, textColor,
x,
y + 60);
bool visible = Win32Interop.IsWindowVisible(closest.hwnd);
gfx.DrawString("Visible: " + visible.ToString(), smallWindowFont, textColor,
x,
y + 75);
Win32Interop.WINDOWPLACEMENT placement = new Win32Interop.WINDOWPLACEMENT();
placement.length = System.Runtime.InteropServices.Marshal.SizeOf(placement);
if (Win32Interop.GetWindowPlacement(closest.hwnd, ref placement))
{
gfx.DrawString("State: " + Win32Interop.WindowState(placement.showCmd), smallWindowFont, textColor,
x,
y + 90);
}
gfx.DrawLine(windowCloestOutlinePen, cursor.X, cursor.Y, (maxBounds.X + closest.screenPosition.X + closest.screenPosition.Width / 2) * scaleX, (maxBounds.Y + closest.screenPosition.Y + closest.screenPosition.Height / 2) * scaleY);
}
//screens
if (maxBounds.Size != desktopBounds.Size)
{
gfx.DrawRectangle(virtualScreenOutlinePen,
(initialOffset.X) * scaleX,
(initialOffset.Y) * scaleY,
desktopBounds.Width * scaleX,
desktopBounds.Height * scaleY);
}
foreach (Rectangle scr in screens)
{
gfx.DrawRectangle(Pens.Pink,
(scr.X) * scaleX,
(scr.Y) * scaleY,
scr.Width * scaleX,
scr.Height * scaleY);
}
}
private bool EnumWindowsProc(IntPtr hWnd, int lParam)
{
string windowText = "";
string className = "";
Rectangle rect;
Win32Interop.WINDOWINFO info = new Win32Interop.WINDOWINFO();
info.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(info);
// if we already have it simply skip
foreach (WindowInfo window in windowData)
{
if (window.hwnd == hWnd)
{
window.exists = true;
return(true);
}
}
StringBuilder sb = new StringBuilder(254);
Win32Interop.GetWindowText(hWnd, sb, 255);
if (sb.Length > 0)
{
windowText = sb.ToString();
}
sb.Clear();
if (windowText.Length > 0 && Win32Interop.GetWindowInfo(hWnd, ref info))
{
// "Real" windows
if (HasOpt(info.dwStyle, Win32Interop.WS_VISIBLE) &&
HasOpt(info.dwStyle, Win32Interop.WS_THICKFRAME) &&
HasOpt(info.dwStyle, Win32Interop.WS_SYSMENU) &&
HasOpt(info.dwStyle, Win32Interop.WS_OVERLAPPED) &&
HasOpt(info.dwStyle, Win32Interop.WS_BORDER))
{
WindowInfo window = new WindowInfo();
window.hwnd = hWnd;
window.windowName = windowText;
window.SetRect(info.rcWindow);
newWindows.Add(window);
}
// "Popup" dialogs, like find, open etc.
if (HasOpt(info.dwStyle, Win32Interop.WS_POPUP) &&
HasOpt(info.dwStyle, Win32Interop.WS_SYSMENU) &&
HasOpt(info.dwStyle, Win32Interop.WS_OVERLAPPED) &&
HasOpt(info.dwStyle, Win32Interop.WS_BORDER) &&
!HasOpt(info.dwStyle, Win32Interop.WS_THICKFRAME) && // removes hidden weird things
info.rcWindow.X != 0 &&
info.rcWindow.Y != 0)
{
WindowInfo window = new WindowInfo();
window.hwnd = hWnd;
window.windowName = windowText;
window.SetRect(info.rcWindow);
newWindows.Add(window);
}
}
return(true);
}