static int EvaluateFontAndTextColor(DrawBoard canvas, TextSpanStyle spanStyle)
{
var font = spanStyle.ReqFont;
var color = spanStyle.FontColor;
var currentTextFont = canvas.CurrentFont;
var currentTextColor = canvas.CurrentTextColor;
if (font != null && font != currentTextFont)
{
if (currentTextColor != color)
{
return(DIFF_FONT_DIFF_TEXT_COLOR);
}
else
{
return(DIFF_FONT_SAME_TEXT_COLOR);
}
}
else
{
if (currentTextColor != color)
{
return(SAME_FONT_DIFF_TEXT_COLOR);
}
else
{
return(SAME_FONT_SAME_TEXT_COLOR);
}
}
}
//
protected override void OnStart(AppHost host)
{
_textbox = new LayoutFarm.CustomWidgets.TextBox(400, 300, true);
_textbox.SetLocation(20, 20);
var style1 = new TextEditing.TextSpanStyle();
style1.ReqFont = new PixelFarm.Drawing.RequestFont("tahoma", 14);
style1.FontColor = new PixelFarm.Drawing.Color(0, 0, 0);
_textbox.DefaultSpanStyle = style1;
var textSplitter = new CustomWidgets.ContentTextSplitter();
_textbox.TextSplitter = textSplitter;
_sgBox = new SuggestionWindowMx(300, 200);
_sgBox.UserConfirmSelectedItem += new EventHandler(sgBox_UserConfirmSelectedItem);
_sgBox.ListItemKeyboardEvent += new EventHandler <UIKeyEventArgs>(sgBox_ListItemKeyboardEvent);
_sgBox.Hide();
//------------------------------------
//create special text surface listener
var textSurfaceListener = new LayoutFarm.TextEditing.TextSurfaceEventListener();
textSurfaceListener.CharacterAdded += (s, e) => UpdateSuggestionList();
textSurfaceListener.CharacterRemoved += (s, e) => UpdateSuggestionList();
textSurfaceListener.PreviewArrowKeyDown += new EventHandler <TextEditing.TextDomEventArgs>(textSurfaceListener_PreviewArrowKeyDown);
textSurfaceListener.PreviewEnterKeyDown += new EventHandler <TextEditing.TextDomEventArgs>(textSurfaceListener_PreviewEnterKeyDown);
_textbox.TextEventListener = textSurfaceListener;
//------------------------------------
host.AddChild(_textbox);
host.AddChild(_sgBox.GetPrimaryUI());
//------------------------------------
BuildSampleCountryList();
}
public DocActionFormatting(TextSpanStyle textStyle, int startLineNumber, int startCharIndex, int endLineNumber, int endCharIndex)
: base(startLineNumber, startCharIndex)
{
_textStyle = textStyle;
_endLineNumber = endLineNumber;
_endCharIndex = endCharIndex;
}
//
protected override void OnStart(AppHost host)
{
_textbox = new LayoutFarm.CustomWidgets.TextBox(400, 30, false);
_textbox.SetLocation(20, 20);
var style2 = new TextEditing.TextSpanStyle();
style2.ReqFont = new PixelFarm.Drawing.RequestFont("tahoma", 14);
style2.FontColor = new PixelFarm.Drawing.Color(0, 0, 0);
_textbox.DefaultSpanStyle = style2;
var textSplitter = new LayoutFarm.CustomWidgets.ContentTextSplitter();
_textbox.TextSplitter = textSplitter;
_listbox = new CustomWidgets.ListBox(300, 200);
_listbox.SetLocation(0, 40);
_listbox.Visible = false;
//------------------------------------
//create special text surface listener
var textSurfaceListener = new LayoutFarm.TextEditing.TextSurfaceEventListener();
textSurfaceListener.CharacterAdded += (s, e) => UpdateSuggestionList();
textSurfaceListener.CharacterRemoved += (s, e) => UpdateSuggestionList();
textSurfaceListener.PreviewArrowKeyDown += new EventHandler <TextEditing.TextDomEventArgs>(textSurfaceListener_PreviewArrowKeyDown);
textSurfaceListener.PreviewEnterKeyDown += new EventHandler <TextEditing.TextDomEventArgs>(textSurfaceListener_PreviewEnterKeyDown);
_textbox.TextEventListener = textSurfaceListener;
//------------------------------------
host.AddChild(_textbox);
host.AddChild(_listbox);
//------------------------------------
BuildSampleCountryList();
}
public void AddUnformattedStringToCurrentLine(RootGraphic root, string str, TextSpanStyle initTextSpanStyle)
{
//this should be a text-service work ***
//TODO: use specific text model to format this document
using (System.IO.StringReader reader = new System.IO.StringReader(str))
{
string line = reader.ReadLine();
List <EditableTextRun> runs = new List <EditableTextRun>();
int lineCount = 0;
while (line != null)
{
if (lineCount > 0)
{
runs.Add(new EditableTextRun(root, '\n', initTextSpanStyle));
}
if (line.Length > 0)
{
runs.Add(new EditableTextRun(root, line, initTextSpanStyle));
}
//
line = reader.ReadLine();
lineCount++;
}
AddTextRunsToCurrentLine(runs.ToArray());
}
}
protected override void OnStart(AppHost host)
{
{
var reqFont1 = new PixelFarm.Drawing.RequestFont("Sarabun", 14);
var textbox1 = new LayoutFarm.CustomWidgets.TextBox(400, 100, true);
var style1 = new TextEditing.TextSpanStyle();
style1.ReqFont = reqFont1;
//test with various font style
style1.FontColor = new PixelFarm.Drawing.Color(0, 0, 0);
textbox1.DefaultSpanStyle = style1;
host.AddChild(textbox1);
}
//-------------------
//{
// var reqFont2 = new PixelFarm.Drawing.RequestFont("Sarabun", 10);
// //this version we need to set a style font each textbox
// var textbox2 = new LayoutFarm.CustomWidgets.TextBox(400, 500, true);
// var style2 = new TextEditing.TextSpanStyle();
// style2.ReqFont = reqFont2;
// style2.FontColor = new PixelFarm.Drawing.Color(0, 0, 0);
// textbox2.DefaultSpanStyle = style2;
// textbox2.SetLocation(20, 120);
// host.AddChild(textbox2);
// var textSplitter = new ContentTextSplitter();
// textbox2.TextSplitter = textSplitter;
// textbox2.Text = "Hello World!";
//}
}
internal SolidTextRun(RootGraphic gfx, char[] copyBuffer, TextSpanStyle style)
: base(gfx)
{
//check line break?
_spanStyle = style;
_mybuffer = copyBuffer;
UpdateRunWidth();
}
//
public override void SetStyle(TextSpanStyle spanStyle)
{
//TODO: review this again
//update style may affect the 'visual' layout of the span
//the span may expand large or shrink down
//so we invalidate graphics area pre and post
this.InvalidateGraphics();
_spanStyle = spanStyle;
this.InvalidateGraphics();
UpdateRunWidth();
}
public EditableTextRun(RootGraphic gfx, char c, TextSpanStyle style)
: base(gfx)
{
_spanStyle = style;
SetNewContent(new char[] { c });
if (c == '\n')
{
//TODO: review line break span
this.IsLineBreak = true;
}
//check line break?
UpdateRunWidth();
}
public EditableTextRun(RootGraphic gfx, char[] copyBuffer, TextSpanStyle style)
: base(gfx)
{
//we need font info (in style) for evaluating the size fo this span
//without font info we can't measure the size of this span
_spanStyle = style;
SetNewContent(copyBuffer);
UpdateRunWidth();
#if DEBUG
this.dbugBreak = true;
#endif
}
public TextEditRenderBox(
RootGraphic rootgfx,
int width, int height,
bool isMultiLine,
bool isEditable = true)
: base(rootgfx, width, height)
{
_isEditable = isEditable;
if (isEditable)
{
GlobalCaretController.RegisterCaretBlink(rootgfx);
//
_myCaret = new CaretRenderElement(rootgfx, 2, 17);
_myCaret.TransparentForAllEvents = true;
}
RenderBackground = RenderCaret = RenderSelectionRange = RenderMarkers = true;
//
MayHasViewport = true;
BackgroundColor = Color.White;// Color.Transparent;
_currentSpanStyle = new TextSpanStyle();
_currentSpanStyle.FontColor = Color.Black;//set default
_currentSpanStyle.ReqFont = rootgfx.DefaultTextEditFontInfo;
//
_textLayer = new EditableTextFlowLayer(this); //presentation
_internalTextLayerController = new InternalTextLayerController(_textLayer); //controller
_isMultiLine = isMultiLine;
if (isMultiLine)
{
_textLayer.SetUseDoubleCanvas(false, true);
}
else
{
_textLayer.SetUseDoubleCanvas(true, false);
}
NeedClipArea = true;
IsBlockElement = false;
NumOfWhitespaceForSingleTab = 4;//default?, configurable?
}
public SolidTextRun(RootGraphic gfx, string str, TextSpanStyle style)
: base(gfx)
{
_spanStyle = style;
if (str != null && str.Length > 0)
{
_mybuffer = str.ToCharArray();
if (_mybuffer.Length == 1 && _mybuffer[0] == '\n')
{
this.IsLineBreak = true;
}
UpdateRunWidth();
}
else
{
throw new Exception("string must be null or zero length");
}
}
protected PixelFarm.Drawing.RequestFont GetFont()
{
if (!HasStyle)
{
return(this.Root.DefaultTextEditFontInfo);
}
else
{
TextSpanStyle spanStyle = this.SpanStyle;
if (spanStyle.ReqFont != null)
{
return(spanStyle.ReqFont);
}
else
{
return(this.Root.DefaultTextEditFontInfo);
}
}
}
public EditableTextRun(RootGraphic gfx, string str, TextSpanStyle style)
: base(gfx)
{
_spanStyle = style;
if (str != null && str.Length > 0)
{
SetNewContent(str.ToCharArray());
//special treament
if (_mybuffer.Length == 1 && _mybuffer[0] == '\n')
{
this.IsLineBreak = true;
}
UpdateRunWidth();
}
else
{
//TODO: review here
throw new Exception("string must be null or zero length");
}
}
//
public override void CustomDrawToThisCanvas(DrawBoard canvas, Rectangle updateArea)
{
int bWidth = this.Width;
int bHeight = this.Height;
#if DEBUG
//canvas.dbug_DrawCrossRect(Color.Red, new Rectangle(0, 0, bWidth, bHeight));
//canvas.DrawRectangle(Color.Red, 0, 0, bWidth, bHeight);
#endif
if (!this.HasStyle)
{
canvas.DrawText(_mybuffer, new Rectangle(0, 0, bWidth, bHeight), 0);
}
else
{
TextSpanStyle style = this.SpanStyle;
switch (EvaluateFontAndTextColor(canvas, style))
{
case DIFF_FONT_SAME_TEXT_COLOR:
{
canvas.DrawText(_mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
}
break;
case DIFF_FONT_DIFF_TEXT_COLOR:
{
RequestFont prevFont = canvas.CurrentFont;
Color prevColor = canvas.CurrentTextColor;
canvas.CurrentFont = style.ReqFont;
canvas.CurrentTextColor = style.FontColor;
canvas.DrawText(_mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
canvas.CurrentFont = prevFont;
canvas.CurrentTextColor = prevColor;
}
break;
case SAME_FONT_DIFF_TEXT_COLOR:
{
Color prevColor = canvas.CurrentTextColor;
canvas.CurrentTextColor = style.FontColor;
canvas.DrawText(_mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
canvas.CurrentTextColor = prevColor;
}
break;
default:
{
canvas.DrawText(_mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
}
break;
}
}
}
public abstract void SetStyle(TextSpanStyle spanStyle);
