Exemplo n.º 1
0
        private static string TruncateMessageToFitScreen(string message)
        {
            const int MaxCharsPerLine = 80;

            IntPtr hFont = SafeNativeMethods.GetStockObject(NativeMethods.DEFAULT_GUI_FONT);
            IntPtr hdc   = UnsafeNativeMethods.GetDC(IntPtr.Zero);

            NativeMethods.TEXTMETRIC tm = new NativeMethods.TEXTMETRIC();
            hFont = UnsafeNativeMethods.SelectObject(hdc, hFont);
            SafeNativeMethods.GetTextMetrics(hdc, tm);
            UnsafeNativeMethods.SelectObject(hdc, hFont);
            UnsafeNativeMethods.ReleaseDC(IntPtr.Zero, hdc);
            hdc = IntPtr.Zero;
            int cy       = UnsafeNativeMethods.GetSystemMetrics(NativeMethods.SM_CYSCREEN);
            int maxLines = cy / tm.tmHeight - 15;

            int lineCount     = 0;
            int lineCharCount = 0;
            int i             = 0;

            while (lineCount < maxLines && i < message.Length - 1)
            {
                char ch = message[i];
                lineCharCount++;
                if (ch == '\n' || ch == '\r' || lineCharCount > MaxCharsPerLine)
                {
                    lineCount++;
                    lineCharCount = 0;
                }

                // treat \r\n or \n\r as a single line break
                if (ch == '\r' && message[i + 1] == '\n')
                {
                    i += 2;
                }
                else if (ch == '\n' && message[i + 1] == '\r')
                {
                    i += 2;
                }
                else
                {
                    i++;
                }
            }
            if (i < message.Length - 1)
            {
                message = SR.GetString(SR.DebugMessageTruncated, message.Substring(0, i));
            }
            return(message);
        }
Exemplo n.º 2
0
        private static string TruncateMessageToFitScreen(string message) {            
            const int MaxCharsPerLine = 80;

            IntPtr hFont = SafeNativeMethods.GetStockObject(NativeMethods.DEFAULT_GUI_FONT);
            IntPtr hdc = UnsafeNativeMethods.GetDC(IntPtr.Zero);
            NativeMethods.TEXTMETRIC tm = new NativeMethods.TEXTMETRIC();
            hFont = UnsafeNativeMethods.SelectObject(hdc, hFont);
            SafeNativeMethods.GetTextMetrics(hdc, tm);
            UnsafeNativeMethods.SelectObject(hdc, hFont);
            UnsafeNativeMethods.ReleaseDC(IntPtr.Zero, hdc);
            hdc = IntPtr.Zero;
            int cy = UnsafeNativeMethods.GetSystemMetrics(NativeMethods.SM_CYSCREEN);
            int maxLines = cy / tm.tmHeight - 15;
    
            int lineCount = 0;
            int lineCharCount = 0;
            int i = 0;
            while (lineCount < maxLines && i < message.Length - 1) { 
                char ch = message[i];
                lineCharCount++;
                if (ch == '\n' || ch == '\r' || lineCharCount > MaxCharsPerLine) {
                    lineCount++;
                    lineCharCount = 0;
                }

                // treat \r\n or \n\r as a single line break
                if (ch == '\r' && message[i + 1] == '\n')  
                    i+=2;
                else if (ch == '\n' && message[i + 1] == '\r') 
                    i+=2;
                else
                    i++;
            }
            if (i < message.Length - 1)
                message = SR.GetString(SR.DebugMessageTruncated, message.Substring(0, i));
            return message;          
        }