コード例 #1
0
ファイル: Helpers.cs プロジェクト: Pfhoenix/ScintillaNET
        private static unsafe void CopyRtf(Scintilla scintilla, StyleData[] styles, List<ArraySegment<byte>> styledSegments)
        {
            // NppExport -> NppExport.cpp
            // NppExport -> RTFExporter.cpp
            // http://en.wikipedia.org/wiki/Rich_Text_Format
            // https://msdn.microsoft.com/en-us/library/windows/desktop/ms649013.aspx
            // http://forums.codeguru.com/showthread.php?242982-Converting-pixels-to-twips
            // http://en.wikipedia.org/wiki/UTF-8

            try
            {
                // Calculate twips per space
                int twips;
                var fontStyle = FontStyle.Regular;
                if (styles[Style.Default].Weight >= 700)
                    fontStyle |= FontStyle.Bold;
                if (styles[Style.Default].Italic != 0)
                    fontStyle |= FontStyle.Italic;
                if (styles[Style.Default].Underline != 0)
                    fontStyle |= FontStyle.Underline;

                using (var graphics = scintilla.CreateGraphics())
                using (var font = new Font(styles[Style.Default].FontName, styles[Style.Default].SizeF, fontStyle))
                {
                    var width = graphics.MeasureString(" ", font).Width;
                    twips = (int)((width / graphics.DpiX) * 1440);
                    // TODO The twips value calculated seems too small on my computer
                }

                // Write RTF
                using (var ms = new NativeMemoryStream(styledSegments.Sum(s => s.Count)))
                using (var tw = new StreamWriter(ms, Encoding.ASCII))
                {
                    var tabWidth = scintilla.DirectMessage(NativeMethods.SCI_GETTABWIDTH).ToInt32();
                    var deftab = tabWidth * twips;

                    tw.WriteLine(@"{{\rtf1\ansi\deff0\deftab{0}", deftab);
                    tw.Flush();

                    // Build the font table
                    tw.Write(@"{\fonttbl");
                    tw.Write(@"{{\f0 {0};}}", styles[Style.Default].FontName);
                    var fontIndex = 1;
                    for (int i = 0; i < styles.Length; i++)
                    {
                        if (!styles[i].Used)
                            continue;

                        if (i == Style.Default)
                            continue;

                        // Not a completely unique list, but close enough
                        if (styles[i].FontName != styles[Style.Default].FontName)
                        {
                            styles[i].FontIndex = fontIndex++;
                            tw.Write(@"{{\f{0} {1};}}", styles[i].FontIndex, styles[i].FontName);
                        }
                    }
                    tw.WriteLine("}"); // fonttbl
                    tw.Flush();

                    // Build the color table
                    tw.Write(@"{\colortbl");
                    tw.Write(@"\red{0}\green{1}\blue{2};", (styles[Style.Default].ForeColor >> 0) & 0xFF, (styles[Style.Default].ForeColor >> 8) & 0xFF, (styles[Style.Default].ForeColor >> 16) & 0xFF);
                    tw.Write(@"\red{0}\green{1}\blue{2};", (styles[Style.Default].BackColor >> 0) & 0xFF, (styles[Style.Default].BackColor >> 8) & 0xFF, (styles[Style.Default].BackColor >> 16) & 0xFF);
                    styles[Style.Default].ForeColorIndex = 0;
                    styles[Style.Default].BackColorIndex = 1;
                    var colorIndex = 2;
                    for (int i = 0; i < styles.Length; i++)
                    {
                        if (!styles[i].Used)
                            continue;

                        if (i == Style.Default)
                            continue;

                        // Not a completely unique list, but close enough
                        if (styles[i].ForeColor != styles[Style.Default].ForeColor)
                        {
                            styles[i].ForeColorIndex = colorIndex++;
                            tw.Write(@"\red{0}\green{1}\blue{2};", (styles[i].ForeColor >> 0) & 0xFF, (styles[i].ForeColor >> 8) & 0xFF, (styles[i].ForeColor >> 16) & 0xFF);
                        }
                        else
                        {
                            styles[i].ForeColorIndex = styles[Style.Default].ForeColorIndex;
                        }

                        if (styles[i].BackColor != styles[Style.Default].BackColor)
                        {
                            styles[i].BackColorIndex = colorIndex++;
                            tw.Write(@"\red{0}\green{1}\blue{2};", (styles[i].BackColor >> 0) & 0xFF, (styles[i].BackColor >> 8) & 0xFF, (styles[i].BackColor >> 16) & 0xFF);
                        }
                        else
                        {
                            styles[i].BackColorIndex = styles[Style.Default].BackColorIndex;
                        }
                    }
                    tw.WriteLine("}"); // colortbl
                    tw.Flush();

                    // Start with the default style
                    tw.Write(@"\f{0}\fs{1}\cf{2}\chshdng0\chcbpat{3}\cb{3} ", styles[Style.Default].FontIndex, (int)(styles[Style.Default].SizeF * 2), styles[Style.Default].ForeColorIndex, styles[Style.Default].BackColorIndex);
                    if (styles[Style.Default].Italic != 0)
                        tw.Write(@"\i");
                    if (styles[Style.Default].Underline != 0)
                        tw.Write(@"\ul");
                    if (styles[Style.Default].Weight >= 700)
                        tw.Write(@"\b");

                    tw.AutoFlush = true;
                    var lastStyle = Style.Default;
                    var unicodeLineEndings = ((scintilla.DirectMessage(NativeMethods.SCI_GETLINEENDTYPESACTIVE).ToInt32() & NativeMethods.SC_LINE_END_TYPE_UNICODE) > 0);
                    foreach (var seg in styledSegments)
                    {
                        var endOffset = seg.Offset + seg.Count;
                        for (int i = seg.Offset; i < endOffset; i += 2)
                        {
                            var ch = seg.Array[i];
                            var style = seg.Array[i + 1];

                            if (lastStyle != style)
                            {
                                // Change the style
                                if (styles[lastStyle].FontIndex != styles[style].FontIndex)
                                    tw.Write(@"\f{0}", styles[style].FontIndex);
                                if (styles[lastStyle].SizeF != styles[style].SizeF)
                                    tw.Write(@"\fs{0}", (int)(styles[style].SizeF * 2));
                                if (styles[lastStyle].ForeColorIndex != styles[style].ForeColorIndex)
                                    tw.Write(@"\cf{0}", styles[style].ForeColorIndex);
                                if (styles[lastStyle].BackColorIndex != styles[style].BackColorIndex)
                                    tw.Write(@"\chshdng0\chcbpat{0}\cb{0}", styles[style].BackColorIndex);
                                if (styles[lastStyle].Italic != styles[style].Italic)
                                    tw.Write(@"\i{0}", styles[style].Italic != 0 ? "" : "0");
                                if (styles[lastStyle].Underline != styles[style].Underline)
                                    tw.Write(@"\ul{0}", styles[style].Underline != 0 ? "" : "0");
                                if (styles[lastStyle].Weight != styles[style].Weight)
                                {
                                    if (styles[style].Weight >= 700 && styles[lastStyle].Weight < 700)
                                        tw.Write(@"\b");
                                    else if (styles[style].Weight < 700 && styles[lastStyle].Weight >= 700)
                                        tw.Write(@"\b0");
                                }

                                // NOTE: We don't support StyleData.Visible and StyleData.Case in RTF

                                lastStyle = style;
                                tw.Write(" "); // Delimiter
                            }

                            switch (ch)
                            {
                                case (byte)'{':
                                    tw.Write(@"\{");
                                    break;

                                case (byte)'}':
                                    tw.Write(@"\}");
                                    break;

                                case (byte)'\\':
                                    tw.Write(@"\\");
                                    break;

                                case (byte)'\t':
                                    tw.Write(@"\tab ");
                                    break;

                                case (byte)'\r':
                                    if (i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == (byte)'\n')
                                            i += 2;
                                    }

                                    // Either way, this is a line break
                                    goto case (byte)'\n';

                                case 0xC2:
                                    if (unicodeLineEndings && i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x85) // NEL \u0085
                                        {
                                            i += 2;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case 0xE2:
                                    if (unicodeLineEndings && i + 4 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA8) // LS \u2028
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                        else if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA9) // PS \u2029
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case (byte)'\n':
                                    // All your line breaks are belong to us
                                    tw.WriteLine(@"\par");
                                    break;

                                default:

                                    if (ch == 0)
                                    {
                                        // Scintilla behavior is to allow control characters except for
                                        // NULL which will cause the Clipboard to truncate the string.
                                        tw.Write(" "); // Replace with space
                                        break;
                                    }

                                    if (ch > 0x7F)
                                    {
                                        // Treat as UTF-8 code point
                                        int unicode = 0;
                                        if (ch < 0xE0 && i + 2 < endOffset)
                                        {
                                            unicode |= ((0x1F & ch) << 6);
                                            unicode |= (0x3F & seg.Array[i + 2]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 2;
                                            break;
                                        }
                                        else if (ch < 0xF0 && i + 4 < endOffset)
                                        {
                                            unicode |= ((0xF & ch) << 12);
                                            unicode |= ((0x3F & seg.Array[i + 2]) << 6);
                                            unicode |= (0x3F & seg.Array[i + 4]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 4;
                                            break;
                                        }
                                        else if (ch < 0xF8 && i + 6 < endOffset)
                                        {
                                            unicode |= ((0x7 & ch) << 18);
                                            unicode |= ((0x3F & seg.Array[i + 2]) << 12);
                                            unicode |= ((0x3F & seg.Array[i + 4]) << 6);
                                            unicode |= (0x3F & seg.Array[i + 6]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 6;
                                            break;
                                        }
                                    }

                                    // Regular ANSI char
                                    ms.WriteByte(ch);
                                    break;
                            }
                        }
                    }

                    tw.AutoFlush = false;
                    tw.WriteLine("}"); // rtf1
                    tw.Flush();

                    // Terminator
                    ms.WriteByte(0);

                    // var str = GetString(ms.Pointer, (int)ms.Length, Encoding.ASCII);
                    if (NativeMethods.SetClipboardData(CF_RTF, ms.Pointer) != IntPtr.Zero)
                        ms.FreeOnDispose = false; // Clipboard will free memory
                }
            }
            catch (Exception ex)
            {
                // Yes, we swallow any exceptions. That may seem like code smell but this matches
                // the behavior of the Clipboard class, Windows Forms controls, and native Scintilla.
                Debug.Fail(ex.Message, ex.ToString());
            }
        }
コード例 #2
0
ファイル: Helpers.cs プロジェクト: Pfhoenix/ScintillaNET
        private static unsafe void CopyHtml(Scintilla scintilla, StyleData[] styles, List<ArraySegment<byte>> styledSegments)
        {
            // NppExport -> NppExport.cpp
            // NppExport -> HTMLExporter.cpp
            // http://blogs.msdn.com/b/jmstall/archive/2007/01/21/html-clipboard.aspx
            // http://blogs.msdn.com/b/jmstall/archive/2007/01/21/sample-code-html-clipboard.aspx
            // https://msdn.microsoft.com/en-us/library/windows/desktop/ms649015.aspx

            try
            {
                long pos = 0;
                byte[] bytes;

                // Write HTML
                using (var ms = new NativeMemoryStream(styledSegments.Sum(s => s.Count)))
                using (var tw = new StreamWriter(ms, new UTF8Encoding(false)))
                {
                    const int INDEX_START_HTML = 23;
                    const int INDEX_START_FRAGMENT = 65;
                    const int INDEX_END_FRAGMENT = 87;
                    const int INDEX_END_HTML = 41;

                    tw.WriteLine("Version:0.9");
                    tw.WriteLine("StartHTML:00000000");
                    tw.WriteLine("EndHTML:00000000");
                    tw.WriteLine("StartFragment:00000000");
                    tw.WriteLine("EndFragment:00000000");
                    tw.Flush();

                    // Patch header
                    pos = ms.Position;
                    ms.Seek(INDEX_START_HTML, SeekOrigin.Begin);
                    ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                    ms.Seek(pos, SeekOrigin.Begin);

                    tw.WriteLine("<html>");
                    tw.WriteLine("<head>");
                    tw.WriteLine(@"<meta charset=""utf-8"" />");
                    tw.WriteLine(@"<title>ScintillaNET v{0}</title>", scintilla.GetType().Assembly.GetName().Version.ToString(3));
                    tw.WriteLine("</head>");
                    tw.WriteLine("<body>");
                    tw.Flush();

                    // Patch header
                    pos = ms.Position;
                    ms.Seek(INDEX_START_FRAGMENT, SeekOrigin.Begin);
                    ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                    ms.Seek(pos, SeekOrigin.Begin);
                    tw.WriteLine("<!--StartFragment -->");

                    // Write the styles.
                    // We're doing the style tag in the body to include it in the "fragment".
                    tw.WriteLine(@"<style type=""text/css"" scoped="""">");
                    tw.Write("div#segments {");
                    tw.Write(" float: left;");
                    tw.Write(" white-space: pre;");
                    tw.Write(" line-height: {0}px;", scintilla.DirectMessage(NativeMethods.SCI_TEXTHEIGHT, new IntPtr(0)).ToInt32());
                    tw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[Style.Default].BackColor >> 0) & 0xFF, (styles[Style.Default].BackColor >> 8) & 0xFF, (styles[Style.Default].BackColor >> 16) & 0xFF);
                    tw.WriteLine(" }");

                    for (int i = 0; i < styles.Length; i++)
                    {
                        if (!styles[i].Used)
                            continue;

                        tw.Write("span.s{0} {{", i);
                        tw.Write(@" font-family: ""{0}"";", styles[i].FontName);
                        tw.Write(" font-size: {0}pt;", styles[i].SizeF);
                        tw.Write(" font-weight: {0};", styles[i].Weight);
                        if (styles[i].Italic != 0)
                            tw.Write(" font-style: italic;");
                        if (styles[i].Underline != 0)
                            tw.Write(" text-decoration: underline;");
                        tw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[i].BackColor >> 0) & 0xFF, (styles[i].BackColor >> 8) & 0xFF, (styles[i].BackColor >> 16) & 0xFF);
                        tw.Write(" color: #{0:X2}{1:X2}{2:X2};", (styles[i].ForeColor >> 0) & 0xFF, (styles[i].ForeColor >> 8) & 0xFF, (styles[i].ForeColor >> 16) & 0xFF);
                        switch ((StyleCase)styles[i].Case)
                        {
                            case StyleCase.Upper:
                                tw.Write(" text-transform: uppercase;");
                                break;
                            case StyleCase.Lower:
                                tw.Write(" text-transform: lowercase;");
                                break;
                        }

                        if (styles[i].Visible == 0)
                            tw.Write(" visibility: hidden;");
                        tw.WriteLine(" }");
                    }

                    tw.WriteLine("</style>");
                    tw.Write(@"<div id=""segments""><span class=""s{0}"">", Style.Default);
                    tw.Flush();

                    var tabSize = scintilla.DirectMessage(NativeMethods.SCI_GETTABWIDTH).ToInt32();
                    var tab = new string(' ', tabSize);

                    tw.AutoFlush = true;
                    var lastStyle = Style.Default;
                    var unicodeLineEndings = ((scintilla.DirectMessage(NativeMethods.SCI_GETLINEENDTYPESACTIVE).ToInt32() & NativeMethods.SC_LINE_END_TYPE_UNICODE) > 0);
                    foreach (var seg in styledSegments)
                    {
                        var endOffset = seg.Offset + seg.Count;
                        for (int i = seg.Offset; i < endOffset; i += 2)
                        {
                            var ch = seg.Array[i];
                            var style = seg.Array[i + 1];

                            if (lastStyle != style)
                            {
                                tw.Write(@"</span><span class=""s{0}"">", style);
                                lastStyle = style;
                            }

                            switch (ch)
                            {
                                case (byte)'<':
                                    tw.Write("&lt;");
                                    break;

                                case (byte)'>':
                                    tw.Write("&gt;");
                                    break;

                                case (byte)'&':
                                    tw.Write("&amp;");
                                    break;

                                case (byte)'\t':
                                    tw.Write(tab);
                                    break;

                                case (byte)'\r':
                                    if (i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == (byte)'\n')
                                            i += 2;
                                    }

                                    // Either way, this is a line break
                                    goto case (byte)'\n';

                                case 0xC2:
                                    if (unicodeLineEndings && i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x85) // NEL \u0085
                                        {
                                            i += 2;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case 0xE2:
                                    if (unicodeLineEndings && i + 4 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA8) // LS \u2028
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                        else if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA9) // PS \u2029
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case (byte)'\n':
                                    // All your line breaks are belong to us
                                    tw.Write("\r\n");
                                    break;

                                default:

                                    if (ch == 0)
                                    {
                                        // Scintilla behavior is to allow control characters except for
                                        // NULL which will cause the Clipboard to truncate the string.
                                        tw.Write(" "); // Replace with space
                                        break;
                                    }

                                    ms.WriteByte(ch);
                                    break;
                            }
                        }
                    }

                    tw.AutoFlush = false;
                    tw.WriteLine("</span></div>");
                    tw.Flush();

                    // Patch header
                    pos = ms.Position;
                    ms.Seek(INDEX_END_FRAGMENT, SeekOrigin.Begin);
                    ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                    ms.Seek(pos, SeekOrigin.Begin);
                    tw.WriteLine("<!--EndFragment-->");

                    tw.WriteLine("</body>");
                    tw.WriteLine("</html>");
                    tw.Flush();

                    // Patch header
                    pos = ms.Position;
                    ms.Seek(INDEX_END_HTML, SeekOrigin.Begin);
                    ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                    ms.Seek(pos, SeekOrigin.Begin);

                    // Terminator
                    ms.WriteByte(0);

                    var str = GetString(ms.Pointer, (int)ms.Length, Encoding.UTF8);
                    if (NativeMethods.SetClipboardData(CF_HTML, ms.Pointer) != IntPtr.Zero)
                        ms.FreeOnDispose = false; // Clipboard will free memory
                }
            }
            catch (Exception ex)
            {
                // Yes, we swallow any exceptions. That may seem like code smell but this matches
                // the behavior of the Clipboard class, Windows Forms controls, and native Scintilla.
                Debug.Fail(ex.Message, ex.ToString());
            }
        }
コード例 #3
0
ファイル: Helpers.cs プロジェクト: cqwang/ScintillaNET
        private static unsafe void CopyHtml(Scintilla scintilla, StyleData[] styles, List <ArraySegment <byte> > styledSegments)
        {
            // NppExport -> NppExport.cpp
            // NppExport -> HTMLExporter.cpp
            // http://blogs.msdn.com/b/jmstall/archive/2007/01/21/html-clipboard.aspx
            // http://blogs.msdn.com/b/jmstall/archive/2007/01/21/sample-code-html-clipboard.aspx
            // https://msdn.microsoft.com/en-us/library/windows/desktop/ms649015.aspx

            try
            {
                long   pos = 0;
                byte[] bytes;

                // Write HTML
                using (var ms = new NativeMemoryStream(styledSegments.Sum(s => s.Count)))
                    using (var tw = new StreamWriter(ms, new UTF8Encoding(false)))
                    {
                        const int INDEX_START_HTML     = 23;
                        const int INDEX_START_FRAGMENT = 65;
                        const int INDEX_END_FRAGMENT   = 87;
                        const int INDEX_END_HTML       = 41;

                        tw.WriteLine("Version:0.9");
                        tw.WriteLine("StartHTML:00000000");
                        tw.WriteLine("EndHTML:00000000");
                        tw.WriteLine("StartFragment:00000000");
                        tw.WriteLine("EndFragment:00000000");
                        tw.Flush();

                        // Patch header
                        pos = ms.Position;
                        ms.Seek(INDEX_START_HTML, SeekOrigin.Begin);
                        ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                        ms.Seek(pos, SeekOrigin.Begin);

                        tw.WriteLine("<html>");
                        tw.WriteLine("<head>");
                        tw.WriteLine(@"<meta charset=""utf-8"" />");
                        tw.WriteLine(@"<title>ScintillaNET v{0}</title>", scintilla.GetType().Assembly.GetName().Version.ToString(3));
                        tw.WriteLine("</head>");
                        tw.WriteLine("<body>");
                        tw.Flush();

                        // Patch header
                        pos = ms.Position;
                        ms.Seek(INDEX_START_FRAGMENT, SeekOrigin.Begin);
                        ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                        ms.Seek(pos, SeekOrigin.Begin);
                        tw.WriteLine("<!--StartFragment -->");

                        // Write the styles.
                        // We're doing the style tag in the body to include it in the "fragment".
                        tw.WriteLine(@"<style type=""text/css"" scoped="""">");
                        tw.Write("div#segments {");
                        tw.Write(" float: left;");
                        tw.Write(" white-space: pre;");
                        tw.Write(" line-height: {0}px;", scintilla.DirectMessage(NativeMethods.SCI_TEXTHEIGHT, new IntPtr(0)).ToInt32());
                        tw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[Style.Default].BackColor >> 0) & 0xFF, (styles[Style.Default].BackColor >> 8) & 0xFF, (styles[Style.Default].BackColor >> 16) & 0xFF);
                        tw.WriteLine(" }");

                        for (int i = 0; i < styles.Length; i++)
                        {
                            if (!styles[i].Used)
                            {
                                continue;
                            }

                            tw.Write("span.s{0} {{", i);
                            tw.Write(@" font-family: ""{0}"";", styles[i].FontName);
                            tw.Write(" font-size: {0}pt;", styles[i].SizeF);
                            tw.Write(" font-weight: {0};", styles[i].Weight);
                            if (styles[i].Italic != 0)
                            {
                                tw.Write(" font-style: italic;");
                            }
                            if (styles[i].Underline != 0)
                            {
                                tw.Write(" text-decoration: underline;");
                            }
                            tw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[i].BackColor >> 0) & 0xFF, (styles[i].BackColor >> 8) & 0xFF, (styles[i].BackColor >> 16) & 0xFF);
                            tw.Write(" color: #{0:X2}{1:X2}{2:X2};", (styles[i].ForeColor >> 0) & 0xFF, (styles[i].ForeColor >> 8) & 0xFF, (styles[i].ForeColor >> 16) & 0xFF);
                            switch ((StyleCase)styles[i].Case)
                            {
                            case StyleCase.Upper:
                                tw.Write(" text-transform: uppercase;");
                                break;

                            case StyleCase.Lower:
                                tw.Write(" text-transform: lowercase;");
                                break;
                            }

                            if (styles[i].Visible == 0)
                            {
                                tw.Write(" visibility: hidden;");
                            }
                            tw.WriteLine(" }");
                        }

                        tw.WriteLine("</style>");
                        tw.Write(@"<div id=""segments""><span class=""s{0}"">", Style.Default);
                        tw.Flush();

                        var tabSize = scintilla.DirectMessage(NativeMethods.SCI_GETTABWIDTH).ToInt32();
                        var tab     = new string(' ', tabSize);

                        tw.AutoFlush = true;
                        var lastStyle          = Style.Default;
                        var unicodeLineEndings = ((scintilla.DirectMessage(NativeMethods.SCI_GETLINEENDTYPESACTIVE).ToInt32() & NativeMethods.SC_LINE_END_TYPE_UNICODE) > 0);
                        foreach (var seg in styledSegments)
                        {
                            var endOffset = seg.Offset + seg.Count;
                            for (int i = seg.Offset; i < endOffset; i += 2)
                            {
                                var ch    = seg.Array[i];
                                var style = seg.Array[i + 1];

                                if (lastStyle != style)
                                {
                                    tw.Write(@"</span><span class=""s{0}"">", style);
                                    lastStyle = style;
                                }

                                switch (ch)
                                {
                                case (byte)'<':
                                    tw.Write("&lt;");
                                    break;

                                case (byte)'>':
                                    tw.Write("&gt;");
                                    break;

                                case (byte)'&':
                                    tw.Write("&amp;");
                                    break;

                                case (byte)'\t':
                                    tw.Write(tab);
                                    break;

                                case (byte)'\r':
                                    if (i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == (byte)'\n')
                                        {
                                            i += 2;
                                        }
                                    }

                                    // Either way, this is a line break
                                    goto case (byte)'\n';

                                case 0xC2:
                                    if (unicodeLineEndings && i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x85) // NEL \u0085
                                        {
                                            i += 2;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case 0xE2:
                                    if (unicodeLineEndings && i + 4 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA8) // LS \u2028
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                        else if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA9) // PS \u2029
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case (byte)'\n':
                                    // All your line breaks are belong to us
                                    tw.Write("\r\n");
                                    break;

                                default:

                                    if (ch == 0)
                                    {
                                        // Scintilla behavior is to allow control characters except for
                                        // NULL which will cause the Clipboard to truncate the string.
                                        tw.Write(" "); // Replace with space
                                        break;
                                    }

                                    ms.WriteByte(ch);
                                    break;
                                }
                            }
                        }

                        tw.AutoFlush = false;
                        tw.WriteLine("</span></div>");
                        tw.Flush();

                        // Patch header
                        pos = ms.Position;
                        ms.Seek(INDEX_END_FRAGMENT, SeekOrigin.Begin);
                        ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                        ms.Seek(pos, SeekOrigin.Begin);
                        tw.WriteLine("<!--EndFragment-->");

                        tw.WriteLine("</body>");
                        tw.WriteLine("</html>");
                        tw.Flush();

                        // Patch header
                        pos = ms.Position;
                        ms.Seek(INDEX_END_HTML, SeekOrigin.Begin);
                        ms.Write((bytes = Encoding.ASCII.GetBytes(ms.Length.ToString("D8"))), 0, bytes.Length);
                        ms.Seek(pos, SeekOrigin.Begin);

                        // Terminator
                        ms.WriteByte(0);

                        var str = GetString(ms.Pointer, (int)ms.Length, Encoding.UTF8);
                        if (NativeMethods.SetClipboardData(CF_HTML, ms.Pointer) != IntPtr.Zero)
                        {
                            ms.FreeOnDispose = false; // Clipboard will free memory
                        }
                    }
            }
            catch (Exception ex)
            {
                // Yes, we swallow any exceptions. That may seem like code smell but this matches
                // the behavior of the Clipboard class, Windows Forms controls, and native Scintilla.
                Debug.Fail(ex.Message, ex.ToString());
            }
        }
コード例 #4
0
ファイル: Helpers.cs プロジェクト: cqwang/ScintillaNET
        private static unsafe void CopyRtf(Scintilla scintilla, StyleData[] styles, List <ArraySegment <byte> > styledSegments)
        {
            // NppExport -> NppExport.cpp
            // NppExport -> RTFExporter.cpp
            // http://en.wikipedia.org/wiki/Rich_Text_Format
            // https://msdn.microsoft.com/en-us/library/windows/desktop/ms649013.aspx
            // http://forums.codeguru.com/showthread.php?242982-Converting-pixels-to-twips
            // http://en.wikipedia.org/wiki/UTF-8

            try
            {
                // Calculate twips per space
                int twips;
                var fontStyle = FontStyle.Regular;
                if (styles[Style.Default].Weight >= 700)
                {
                    fontStyle |= FontStyle.Bold;
                }
                if (styles[Style.Default].Italic != 0)
                {
                    fontStyle |= FontStyle.Italic;
                }
                if (styles[Style.Default].Underline != 0)
                {
                    fontStyle |= FontStyle.Underline;
                }

                using (var graphics = scintilla.CreateGraphics())
                    using (var font = new Font(styles[Style.Default].FontName, styles[Style.Default].SizeF, fontStyle))
                    {
                        var width = graphics.MeasureString(" ", font).Width;
                        twips = (int)((width / graphics.DpiX) * 1440);
                        // TODO The twips value calculated seems too small on my computer
                    }

                // Write RTF
                using (var ms = new NativeMemoryStream(styledSegments.Sum(s => s.Count)))
                    using (var tw = new StreamWriter(ms, Encoding.ASCII))
                    {
                        var tabWidth = scintilla.DirectMessage(NativeMethods.SCI_GETTABWIDTH).ToInt32();
                        var deftab   = tabWidth * twips;

                        tw.WriteLine(@"{{\rtf1\ansi\deff0\deftab{0}", deftab);
                        tw.Flush();

                        // Build the font table
                        tw.Write(@"{\fonttbl");
                        tw.Write(@"{{\f0 {0};}}", styles[Style.Default].FontName);
                        var fontIndex = 1;
                        for (int i = 0; i < styles.Length; i++)
                        {
                            if (!styles[i].Used)
                            {
                                continue;
                            }

                            if (i == Style.Default)
                            {
                                continue;
                            }

                            // Not a completely unique list, but close enough
                            if (styles[i].FontName != styles[Style.Default].FontName)
                            {
                                styles[i].FontIndex = fontIndex++;
                                tw.Write(@"{{\f{0} {1};}}", styles[i].FontIndex, styles[i].FontName);
                            }
                        }
                        tw.WriteLine("}"); // fonttbl
                        tw.Flush();

                        // Build the color table
                        tw.Write(@"{\colortbl");
                        tw.Write(@"\red{0}\green{1}\blue{2};", (styles[Style.Default].ForeColor >> 0) & 0xFF, (styles[Style.Default].ForeColor >> 8) & 0xFF, (styles[Style.Default].ForeColor >> 16) & 0xFF);
                        tw.Write(@"\red{0}\green{1}\blue{2};", (styles[Style.Default].BackColor >> 0) & 0xFF, (styles[Style.Default].BackColor >> 8) & 0xFF, (styles[Style.Default].BackColor >> 16) & 0xFF);
                        styles[Style.Default].ForeColorIndex = 0;
                        styles[Style.Default].BackColorIndex = 1;
                        var colorIndex = 2;
                        for (int i = 0; i < styles.Length; i++)
                        {
                            if (!styles[i].Used)
                            {
                                continue;
                            }

                            if (i == Style.Default)
                            {
                                continue;
                            }

                            // Not a completely unique list, but close enough
                            if (styles[i].ForeColor != styles[Style.Default].ForeColor)
                            {
                                styles[i].ForeColorIndex = colorIndex++;
                                tw.Write(@"\red{0}\green{1}\blue{2};", (styles[i].ForeColor >> 0) & 0xFF, (styles[i].ForeColor >> 8) & 0xFF, (styles[i].ForeColor >> 16) & 0xFF);
                            }
                            else
                            {
                                styles[i].ForeColorIndex = styles[Style.Default].ForeColorIndex;
                            }

                            if (styles[i].BackColor != styles[Style.Default].BackColor)
                            {
                                styles[i].BackColorIndex = colorIndex++;
                                tw.Write(@"\red{0}\green{1}\blue{2};", (styles[i].BackColor >> 0) & 0xFF, (styles[i].BackColor >> 8) & 0xFF, (styles[i].BackColor >> 16) & 0xFF);
                            }
                            else
                            {
                                styles[i].BackColorIndex = styles[Style.Default].BackColorIndex;
                            }
                        }
                        tw.WriteLine("}"); // colortbl
                        tw.Flush();

                        // Start with the default style
                        tw.Write(@"\f{0}\fs{1}\cf{2}\chshdng0\chcbpat{3}\cb{3} ", styles[Style.Default].FontIndex, (int)(styles[Style.Default].SizeF * 2), styles[Style.Default].ForeColorIndex, styles[Style.Default].BackColorIndex);
                        if (styles[Style.Default].Italic != 0)
                        {
                            tw.Write(@"\i");
                        }
                        if (styles[Style.Default].Underline != 0)
                        {
                            tw.Write(@"\ul");
                        }
                        if (styles[Style.Default].Weight >= 700)
                        {
                            tw.Write(@"\b");
                        }

                        tw.AutoFlush = true;
                        var lastStyle          = Style.Default;
                        var unicodeLineEndings = ((scintilla.DirectMessage(NativeMethods.SCI_GETLINEENDTYPESACTIVE).ToInt32() & NativeMethods.SC_LINE_END_TYPE_UNICODE) > 0);
                        foreach (var seg in styledSegments)
                        {
                            var endOffset = seg.Offset + seg.Count;
                            for (int i = seg.Offset; i < endOffset; i += 2)
                            {
                                var ch    = seg.Array[i];
                                var style = seg.Array[i + 1];

                                if (lastStyle != style)
                                {
                                    // Change the style
                                    if (styles[lastStyle].FontIndex != styles[style].FontIndex)
                                    {
                                        tw.Write(@"\f{0}", styles[style].FontIndex);
                                    }
                                    if (styles[lastStyle].SizeF != styles[style].SizeF)
                                    {
                                        tw.Write(@"\fs{0}", (int)(styles[style].SizeF * 2));
                                    }
                                    if (styles[lastStyle].ForeColorIndex != styles[style].ForeColorIndex)
                                    {
                                        tw.Write(@"\cf{0}", styles[style].ForeColorIndex);
                                    }
                                    if (styles[lastStyle].BackColorIndex != styles[style].BackColorIndex)
                                    {
                                        tw.Write(@"\chshdng0\chcbpat{0}\cb{0}", styles[style].BackColorIndex);
                                    }
                                    if (styles[lastStyle].Italic != styles[style].Italic)
                                    {
                                        tw.Write(@"\i{0}", styles[style].Italic != 0 ? "" : "0");
                                    }
                                    if (styles[lastStyle].Underline != styles[style].Underline)
                                    {
                                        tw.Write(@"\ul{0}", styles[style].Underline != 0 ? "" : "0");
                                    }
                                    if (styles[lastStyle].Weight != styles[style].Weight)
                                    {
                                        if (styles[style].Weight >= 700 && styles[lastStyle].Weight < 700)
                                        {
                                            tw.Write(@"\b");
                                        }
                                        else if (styles[style].Weight < 700 && styles[lastStyle].Weight >= 700)
                                        {
                                            tw.Write(@"\b0");
                                        }
                                    }

                                    // NOTE: We don't support StyleData.Visible and StyleData.Case in RTF

                                    lastStyle = style;
                                    tw.Write(" "); // Delimiter
                                }

                                switch (ch)
                                {
                                case (byte)'{':
                                    tw.Write(@"\{");
                                    break;

                                case (byte)'}':
                                    tw.Write(@"\}");
                                    break;

                                case (byte)'\\':
                                    tw.Write(@"\\");
                                    break;

                                case (byte)'\t':
                                    tw.Write(@"\tab ");
                                    break;

                                case (byte)'\r':
                                    if (i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == (byte)'\n')
                                        {
                                            i += 2;
                                        }
                                    }

                                    // Either way, this is a line break
                                    goto case (byte)'\n';

                                case 0xC2:
                                    if (unicodeLineEndings && i + 2 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x85) // NEL \u0085
                                        {
                                            i += 2;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case 0xE2:
                                    if (unicodeLineEndings && i + 4 < endOffset)
                                    {
                                        if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA8) // LS \u2028
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                        else if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA9) // PS \u2029
                                        {
                                            i += 4;
                                            goto case (byte)'\n';
                                        }
                                    }

                                    // Not a Unicode line break
                                    goto default;

                                case (byte)'\n':
                                    // All your line breaks are belong to us
                                    tw.WriteLine(@"\par");
                                    break;

                                default:

                                    if (ch == 0)
                                    {
                                        // Scintilla behavior is to allow control characters except for
                                        // NULL which will cause the Clipboard to truncate the string.
                                        tw.Write(" "); // Replace with space
                                        break;
                                    }

                                    if (ch > 0x7F)
                                    {
                                        // Treat as UTF-8 code point
                                        int unicode = 0;
                                        if (ch < 0xE0 && i + 2 < endOffset)
                                        {
                                            unicode |= ((0x1F & ch) << 6);
                                            unicode |= (0x3F & seg.Array[i + 2]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 2;
                                            break;
                                        }
                                        else if (ch < 0xF0 && i + 4 < endOffset)
                                        {
                                            unicode |= ((0xF & ch) << 12);
                                            unicode |= ((0x3F & seg.Array[i + 2]) << 6);
                                            unicode |= (0x3F & seg.Array[i + 4]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 4;
                                            break;
                                        }
                                        else if (ch < 0xF8 && i + 6 < endOffset)
                                        {
                                            unicode |= ((0x7 & ch) << 18);
                                            unicode |= ((0x3F & seg.Array[i + 2]) << 12);
                                            unicode |= ((0x3F & seg.Array[i + 4]) << 6);
                                            unicode |= (0x3F & seg.Array[i + 6]);
                                            tw.Write(@"\u{0}?", unicode);
                                            i += 6;
                                            break;
                                        }
                                    }

                                    // Regular ANSI char
                                    ms.WriteByte(ch);
                                    break;
                                }
                            }
                        }

                        tw.AutoFlush = false;
                        tw.WriteLine("}"); // rtf1
                        tw.Flush();

                        // Terminator
                        ms.WriteByte(0);

                        // var str = GetString(ms.Pointer, (int)ms.Length, Encoding.ASCII);
                        if (NativeMethods.SetClipboardData(CF_RTF, ms.Pointer) != IntPtr.Zero)
                        {
                            ms.FreeOnDispose = false; // Clipboard will free memory
                        }
                    }
            }
            catch (Exception ex)
            {
                // Yes, we swallow any exceptions. That may seem like code smell but this matches
                // the behavior of the Clipboard class, Windows Forms controls, and native Scintilla.
                Debug.Fail(ex.Message, ex.ToString());
            }
        }
コード例 #5
0
ファイル: Helpers.cs プロジェクト: rkonovalov/ScintillaNET
        public static string GetHtml(Scintilla scintilla, int startBytePos, int endBytePos)
        {
            // If we ever allow more than UTF-8, this will have to be revisited
            Debug.Assert(scintilla.DirectMessage(NativeMethods.SCI_GETCODEPAGE).ToInt32() == NativeMethods.SC_CP_UTF8);

            if (startBytePos == endBytePos)
                return string.Empty;

            StyleData[] styles = null;
            List<ArraySegment<byte>> styledSegments = GetStyledSegments(scintilla, false, false, startBytePos, endBytePos, out styles);

            using (var ms = new NativeMemoryStream(styledSegments.Sum(s => s.Count))) // Hint
            using (var sw = new StreamWriter(ms, new UTF8Encoding(false)))
            {
                // Write the styles
                sw.WriteLine(@"<style type=""text/css"" scoped="""">");
                sw.Write("div#segments {");
                sw.Write(" float: left;");
                sw.Write(" white-space: pre;");
                sw.Write(" line-height: {0}px;", scintilla.DirectMessage(NativeMethods.SCI_TEXTHEIGHT, new IntPtr(0)).ToInt32());
                sw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[Style.Default].BackColor >> 0) & 0xFF, (styles[Style.Default].BackColor >> 8) & 0xFF, (styles[Style.Default].BackColor >> 16) & 0xFF);
                sw.WriteLine(" }");

                for (int i = 0; i < styles.Length; i++)
                {
                    if (!styles[i].Used)
                        continue;

                    sw.Write("span.s{0} {{", i);
                    sw.Write(@" font-family: ""{0}"";", styles[i].FontName);
                    sw.Write(" font-size: {0}pt;", styles[i].SizeF);
                    sw.Write(" font-weight: {0};", styles[i].Weight);
                    if (styles[i].Italic != 0)
                        sw.Write(" font-style: italic;");
                    if (styles[i].Underline != 0)
                        sw.Write(" text-decoration: underline;");
                    sw.Write(" background-color: #{0:X2}{1:X2}{2:X2};", (styles[i].BackColor >> 0) & 0xFF, (styles[i].BackColor >> 8) & 0xFF, (styles[i].BackColor >> 16) & 0xFF);
                    sw.Write(" color: #{0:X2}{1:X2}{2:X2};", (styles[i].ForeColor >> 0) & 0xFF, (styles[i].ForeColor >> 8) & 0xFF, (styles[i].ForeColor >> 16) & 0xFF);
                    switch ((StyleCase)styles[i].Case)
                    {
                        case StyleCase.Upper:
                            sw.Write(" text-transform: uppercase;");
                            break;
                        case StyleCase.Lower:
                            sw.Write(" text-transform: lowercase;");
                            break;
                    }

                    if (styles[i].Visible == 0)
                        sw.Write(" visibility: hidden;");

                    sw.WriteLine(" }");
                }

                sw.WriteLine("</style>");

                var unicodeLineEndings = ((scintilla.DirectMessage(NativeMethods.SCI_GETLINEENDTYPESACTIVE).ToInt32() & NativeMethods.SC_LINE_END_TYPE_UNICODE) > 0);
                var tabSize = scintilla.DirectMessage(NativeMethods.SCI_GETTABWIDTH).ToInt32();
                var tab = new string(' ', tabSize);
                var lastStyle = Style.Default;

                // Write the styled text
                sw.Write(@"<div id=""segments""><span class=""s{0}"">", Style.Default);
                sw.Flush();
                sw.AutoFlush = true;

                foreach (var seg in styledSegments)
                {
                    var endOffset = seg.Offset + seg.Count;
                    for (int i = seg.Offset; i < endOffset; i += 2)
                    {
                        var ch = seg.Array[i];
                        var style = seg.Array[i + 1];

                        if (lastStyle != style)
                        {
                            sw.Write(@"</span><span class=""s{0}"">", style);
                            lastStyle = style;
                        }

                        switch (ch)
                        {
                            case (byte)'<':
                                sw.Write("&lt;");
                                break;

                            case (byte)'>':
                                sw.Write("&gt;");
                                break;

                            case (byte)'&':
                                sw.Write("&amp;");
                                break;

                            case (byte)'\t':
                                sw.Write(tab);
                                break;

                            case (byte)'\r':
                                if (i + 2 < endOffset)
                                {
                                    if (seg.Array[i + 2] == (byte)'\n')
                                        i += 2;
                                }

                                // Either way, this is a line break
                                goto case (byte)'\n';

                            case 0xC2:
                                if (unicodeLineEndings && i + 2 < endOffset)
                                {
                                    if (seg.Array[i + 2] == 0x85) // NEL \u0085
                                    {
                                        i += 2;
                                        goto case (byte)'\n';
                                    }
                                }

                                // Not a Unicode line break
                                goto default;

                            case 0xE2:
                                if (unicodeLineEndings && i + 4 < endOffset)
                                {
                                    if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA8) // LS \u2028
                                    {
                                        i += 4;
                                        goto case (byte)'\n';
                                    }
                                    else if (seg.Array[i + 2] == 0x80 && seg.Array[i + 4] == 0xA9) // PS \u2029
                                    {
                                        i += 4;
                                        goto case (byte)'\n';
                                    }
                                }

                                // Not a Unicode line break
                                goto default;

                            case (byte)'\n':
                                // All your line breaks are belong to us
                                sw.Write("\r\n");
                                break;

                            default:

                                if (ch == 0)
                                {
                                    // Replace NUL with space
                                    sw.Write(" ");
                                    break;
                                }

                                ms.WriteByte(ch);
                                break;
                        }
                    }
                }

                sw.AutoFlush = false;
                sw.WriteLine("</span></div>");
                sw.Flush();

                return GetString(ms.Pointer, (int)ms.Length, Encoding.UTF8);
            }
        }