public void EnsureCaretVisible()
{
SRectangle rcClient = new SRectangle();
GetViewRectangle(rcClient);
int height = rcClient.bottom - rcClient.top;
int posCaret = textArea.sr.Caret();
int line = textArea.tv.DisplayLineFromPosition(textArea.sr.Caret());
Point pt = new Point(0, (line - ScrollPos()) * textArea.tv.lineHeight);
Point ptBottomCaret = new Point(pt.x, pt.y + textArea.tv.lineHeight - 1);
int lineCaret = line;
// Vertical positioning
if (pt.y < rcClient.top || ptBottomCaret.y > height)
{
int newTopLine = ScrollPos();
if (lineCaret < ScrollPos())
{
// Caret goes too high
newTopLine = lineCaret;
}
else if (lineCaret > ScrollPos() + PageSize() - 1)
{
// Caret goes too low
newTopLine = lineCaret - PageSize() + 1;
}
ScrollTo(newTopLine);
}
}
internal SRectangle(SRectangle other)
{
left = other.left;
top = other.top;
right = other.right;
bottom = other.bottom;
}
//============================================================
// <T>接收矩形对象。</T>
//
// @param rectangle 矩形对象
//============================================================
public void Assign(SRectangle <T> rectangle)
{
Left = rectangle.Left;
Top = rectangle.Top;
Width = rectangle.Width;
Height = rectangle.Height;
}
public void InvalidateRange(int a, int b)
{
if (a < 0)
{
a = 0;
}
if (b < 0)
{
b = 0;
}
if (a > b)
{
int t = b;
b = a;
a = t;
}
int lineTop = tv.DisplayLineFromPosition(a);
int lineDocBottom = panel.pdoc.pbuffer.LineFromPosition(b) + 1;
int lineBottom = tv.fs.DisplayFromDoc(lineDocBottom);
SRectangle rcInvalidate = new SRectangle();
rcInvalidate.left = 0;
rcInvalidate.right = 2000;
rcInvalidate.top = (lineTop - panel.ScrollPos()) * tv.lineHeight;
rcInvalidate.bottom = (lineBottom - panel.ScrollPos()) * tv.lineHeight;
// Allow for decorators that go 2 pixels beyond line.
rcInvalidate.top -= 2;
rcInvalidate.bottom += 2;
Invalidate(new Rectangle(rcInvalidate.left, rcInvalidate.top,
rcInvalidate.Width(), rcInvalidate.Height()));
}
public virtual void SetClip(SRectangle rc)
{
Rectangle clipRect = new Rectangle(
rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
Region clipRegion = new Region(clipRect);
g.Clip = clipRegion;
}
internal void GetViewRectangle(SRectangle rc)
{
Rectangle r = textArea.Bounds;
rc.left = r.X;
rc.top = r.Y;
rc.right = r.X + r.Width;
rc.bottom = r.Y + r.Height;
}
public override void serialize(BinaryFormatter formatter, Stream fileStream)
{
SRectangle sr = new SRectangle()
{
x = areaRectGeom.Rect.X, y = areaRectGeom.Rect.Y, width = areaRectGeom.Rect.Width, height = areaRectGeom.Rect.Height
};
formatter.Serialize(fileStream, sr);
}
public virtual void PaintText(byte[] s, int len, SRectangle rcw, int ascentLine, int enc)
{
try {
System.String sg = System.Text.Encoding.UTF8.GetString(s, 0, len);
g.DrawString(sg, fontHandle, textBrush, rcw.left, rcw.top + ascentLine - ascent, sf);
}
catch (System.IO.IOException) {
System.Console.Out.WriteLine("Failed to convert");
}
}
public virtual void PaintText(SplitText st, int position, int len, SRectangle rcw, int ascentLine)
{
try {
byte[] s = new byte[len * 3];
int lenUTF8 = st.RetrieveUTF8(position, s, len);
System.String sg = System.Text.Encoding.UTF8.GetString(s, 0, lenUTF8);
g.DrawString(sg, fontHandle, textBrush, rcw.left, rcw.top + ascentLine - ascent, sf);
}
catch (System.IO.IOException) {
System.Console.Out.WriteLine("Failed to convert");
}
}
public override void deSerialize(BinaryFormatter formatter, Stream fileStream)
{
SRectangle sr = (SRectangle)formatter.Deserialize(fileStream);
try
{
areaRectGeom.Rect = new Rect(sr.x, sr.y, sr.width, sr.height);
}
catch (Exception exp)
{
areaRectGeom.Rect = new Rect(0, 0, 0, 0);
}
}
private void Me_Resize(Object sender, EventArgs e)
{
SRectangle rcClient = new SRectangle();
panel.GetViewRectangle(rcClient);
tv.SetRectangle(rcClient);
if (nextLineWrapped >= panel.pdoc.pbuffer.Lines())
{
goodTopLine = tv.fs.DocFromDisplay(tv.topLine);
}
nextLineWrapped = 0;
CheckWrap();
//Console.WriteLine("Idling");
}
public DrawingInfo(SpriteBatch batch, Texture2D texture, SRectangle?sourceRectangle, Vector2 destination, SColor tint, Vector2 origin, float rotation, SpriteEffects effects, float depth) : this()
{
this.Texture = texture;
this.SourceRectangle = sourceRectangle;
this.Tint = tint;
this.Batch = batch;
this.Origin = origin;
this.Rotation = rotation;
this.Effects = effects;
this.Depth = depth;
SRectangle sourceBounds = this.SourceRectangle ?? this.Texture.Bounds;
this.Destination = new SRectangle((int)destination.X, (int)destination.Y, sourceBounds.Width, sourceBounds.Height);
}
private void Me_SizeChanged(object sender, EventArgs e)
{
textArea.Width = this.ClientSize.Width - scrollbarv.Width;
textArea.Height = this.ClientSize.Height - scrollbarh.Height;
scrollbarv.Top = 0;
scrollbarv.Left = textArea.Width;
scrollbarv.Height = textArea.Height;
scrollbarh.Top = textArea.Height;
scrollbarh.Left = 0;
scrollbarh.Width = textArea.Width;
SRectangle rcClient = new SRectangle();
GetViewRectangle(rcClient);
textArea.tv.SetRectangle(rcClient);
}
public void SetScrollBars()
{
SRectangle rcClient = new SRectangle();
GetViewRectangle(rcClient);
textArea.tv.lineWidth = rcClient.right - rcClient.left;
int nPage = PageSize();
int pageScroll = PageSize();
int nMax = textArea.tv.fs.DisplayFromDoc(pdoc.pbuffer.Lines());
scrollbarv.Maximum = nMax;
scrollbarv.LargeChange = pageScroll;
scrollbarh.Maximum = 1200;
scrollbarh.SmallChange = 8;
scrollbarh.LargeChange = 120;
}
internal int PageSize()
{
SRectangle rcClient = new SRectangle();
GetViewRectangle(rcClient);
int linesOnScreen = (rcClient.bottom - rcClient.top) / textArea.tv.lineHeight;
if (linesOnScreen > 0)
{
return(linesOnScreen);
}
else
{
return(1);
}
}
public bool CheckWrap()
{
if (nextLineWrapped < panel.pdoc.pbuffer.Lines())
{
bool redisplay = false;
SRectangle rcClient = new SRectangle();
panel.GetViewRectangle(rcClient);
tv.lineWidth = rcClient.right - rcClient.left;
if (panel.wrap)
{
int minBytesToWrap = tv.lineWidth / tv.tabWidth + 1;
//ElapsedTime et;
panel.pdoc.pbuffer.LexTo(panel.pdoc.pbuffer.Length(), 0, false);
// Get a surface
Surface surface = new Surface(CreateGraphics());
for (int line = 0; line < 200 && nextLineWrapped < panel.pdoc.pbuffer.Lines(); line++)
{
if (nextLineWrapped == goodTopLine)
{
redisplay = true;
}
tv.WrapLine(surface, nextLineWrapped);
nextLineWrapped++;
}
}
else
{
while (nextLineWrapped < panel.pdoc.pbuffer.Lines())
{
tv.fs.SetHeight(nextLineWrapped, 1);
nextLineWrapped++;
}
}
if (redisplay)
{
Invalidate();
panel.ScrollTo(tv.fs.DisplayFromDoc(goodTopLine));
}
if (!(nextLineWrapped < panel.pdoc.pbuffer.Lines()))
{
panel.ScrollTo(tv.fs.DisplayFromDoc(goodTopLine));
panel.SetScrollBars();
Invalidate();
}
}
return(nextLineWrapped < panel.pdoc.pbuffer.Lines());
}
private void Contents_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
Rectangle rc = Rectangle.Truncate(g.ClipBounds);
Rectangle rcBounds = Bounds;
rc.Intersect(rcBounds);
SRectangle rcPaint = new SRectangle();
rcPaint.left = rc.X;
rcPaint.top = rc.Y;
rcPaint.right = rc.X + rc.Width;
rcPaint.bottom = rc.Y + rc.Height;
Surface surface = new Surface(g);
tv.PaintRect(surface, rcPaint);
panel.SetScrollBars();
}
public DrawingInfo(SpriteBatch batch, Texture2D texture, SRectangle?sourceRectangle, SRectangle destination, SColor tint, Vector2 origin, float rotation, SpriteEffects effects, float depth) : this()
{
this.Texture = texture;
this.SourceRectangle = sourceRectangle;
this.Destination = destination;
this.Tint = tint;
this.Batch = batch;
this.Origin = origin;
this.Rotation = rotation;
this.Effects = effects;
this.Depth = depth;
}
public virtual void FillRectangle(SRectangle rc, RGBColor color)
{
SetPen(color);
g.FillRectangle(textBrush, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
}
public virtual void FrameRectangle(SRectangle rc, RGBColor color)
{
SetPen(color);
g.DrawRectangle(linePen, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
}
private void DrawButton_Click(object sender, EventArgs e)
{
// The Draw Button's actions depend on which controls are visible;
// If a user clicks the Draw Button without having supplied all the
// required information, an exception is thrown and the user is ad-
// vised through a MessageBox to observe the correct sequence.
try
{
if (CircleButton.Visible) //instantiate and display a circle
{
Circle bob = new Circle(double.Parse(radiusTxtBx.Text),
int.Parse(xTextBox.Text), int.Parse(yTextBx.Text), 0);
string output = bob.Name + " " + bob;
ShapePictureBx.ImageLocation = "circle.png";
DescriptionLabel.Text = output;
}
if (SquareButton.Visible) //instantiate and display a square
{
Square lucy = new Square(int.Parse(xTextBox.Text),
int.Parse(yTextBx.Text), int.Parse(sideTxtBx.Text));
string output = lucy.Name + " " + lucy + "\n";
ShapePictureBx.ImageLocation = "square.png";
DescriptionLabel.Text = output;
}
if (RectangleButton.Visible) //instantiate and display a rectangle
{
SRectangle fred = new SRectangle(int.Parse(xTextBox.Text),
int.Parse(yTextBx.Text), int.Parse(lengthTxtBx.Text),
int.Parse(widthTxtBx.Text));
string output = fred.Name + " " + fred + "\n";
ShapePictureBx.ImageLocation = "rectangle.png";
DescriptionLabel.Text = output;
}
if (SphereButton.Visible) //instantiate and display a sphere
{
Sphere heather = new Sphere(int.Parse(xTextBox.Text),
int.Parse(yTextBx.Text), int.Parse(zTextBx.Text),
double.Parse(radiusTxtBx.Text));
string output = heather.Name + " " + heather + "\n";
ShapePictureBx.ImageLocation = "sphere.png";
DescriptionLabel.Text = output;
}
if (CubeButton.Visible) //instantiate and display a cube
{
Cube newton = new Cube(int.Parse(xTextBox.Text), int.Parse(yTextBx.Text),
int.Parse(zTextBx.Text), int.Parse(sideTxtBx.Text));
string output = newton.Name + " " + newton + "\n";
ShapePictureBx.ImageLocation = "cube.png";
DescriptionLabel.Text = output;
}
if (CylinderButton.Visible) //instantiate and display a cylinder
{
Cylinder felix = new Cylinder(double.Parse(radiusTxtBx.Text),
int.Parse(xTextBox.Text), int.Parse(yTextBx.Text),
int.Parse(zTextBx.Text), double.Parse(heightTxtBx.Text));
string output = felix.Name + " " + felix + "\n";
ShapePictureBx.ImageLocation = "cylinder.png";
DescriptionLabel.Text = output;
}
}
catch (Exception ex) // display the system message and specific instructions
{
MessageBox.Show(ex.Message + " Please select a shape and enter "
+ "the required data before clicking the Draw button.");
}
}
public Vector2 GetScale()
{
SRectangle source = this.SourceRectangle ?? this.Texture.Bounds;
return(new Vector2((float)this.Destination.Width / source.Width, (float)this.Destination.Height / source.Height));
}
public Sprite(int index, ISpriteSheet parentSheet, SRectangle sourceRectangle) : base(index, parentSheet)
{
this.SourceRectangle = sourceRectangle;
}
public PaintContext(Surface surface_, SRectangle rc_)
{
surface = surface_;
rc = rc_;
}
