本文整理汇总了C#中Cairo.DrawLine方法的典型用法代码示例。如果您正苦于以下问题：C# Cairo.DrawLine方法的具体用法？C# Cairo.DrawLine怎么用？C# Cairo.DrawLine使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Cairo的用法示例。
在下文中一共展示了Cairo.DrawLine方法的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DrawRectangleWithRuler
public void DrawRectangleWithRuler (Cairo.Context cr, double x, Cairo.Rectangle area, Cairo.Color color, bool drawDefaultBackground)
{
bool isDefaultColor = color.R == defaultBgColor.R && color.G == defaultBgColor.G && color.B == defaultBgColor.B;
if (isDefaultColor && !drawDefaultBackground)
return;
cr.Color = color;
var left = (int)(area.X);
var width = (int)area.Width + 1;
if (textEditor.Options.ShowRuler) {
var right = left + width;
var divider = (int) (System.Math.Max (left, System.Math.Min (x + TextStartPosition + rulerX, right)));
if (divider < right) {
var beforeDividerWidth = divider - left;
if (beforeDividerWidth > 0) {
cr.Rectangle (left, area.Y, beforeDividerWidth, area.Height);
cr.Fill ();
}
cr.Rectangle (divider, area.Y, right - divider, area.Height);
cr.Color = DimColor (color);
cr.Fill ();
if (beforeDividerWidth > 0) {
cr.DrawLine (
ColorStyle.Ruler.Color,
divider + 0.5, area.Y,
divider + 0.5, area.Y + area.Height);
}
return;
}
}
cr.Rectangle (left, area.Y, System.Math.Ceiling (area.Width), area.Height);
cr.Fill ();
}示例2: Draw
public override void Draw (TextEditor editor, Cairo.Context cr, Pango.Layout layout, bool selected, int startOffset, int endOffset, double y, double startXPos, double endXPos)
{
int markerStart = line.Offset + startColumn;
int markerEnd = line.Offset + endColumn;
if (markerEnd < startOffset || markerStart > endOffset)
return;
double @from;
double to;
if (markerStart < startOffset && endOffset < markerEnd) {
@from = startXPos;
to = endXPos;
} else {
int start = startOffset < markerStart ? markerStart : startOffset;
int end = endOffset < markerEnd ? endOffset : markerEnd;
int x_pos = layout.IndexToPos (start - startOffset).X;
@from = startXPos + (int)(x_pos / Pango.Scale.PangoScale);
x_pos = layout.IndexToPos (end - startOffset).X;
to = startXPos + (int)(x_pos / Pango.Scale.PangoScale);
}
@from = System.Math.Max (@from, editor.TextViewMargin.XOffset);
to = System.Math.Max (to, editor.TextViewMargin.XOffset);
if (@from < to) {
cr.DrawLine (selected ? editor.ColorStyle.Selection.CairoColor : editor.ColorStyle.GetChunkStyle (style).CairoColor, @from, y + editor.LineHeight - 1, to, y + editor.LineHeight - 1);
}
}示例3: DrawRectangleWithRuler
public void DrawRectangleWithRuler (Cairo.Context cr, double x, Cairo.Rectangle area, Cairo.Color color, bool drawDefaultBackground)
{
bool isDefaultColor = color.R == defaultBgColor.R && color.G == defaultBgColor.G && color.B == defaultBgColor.B;
if (isDefaultColor && !drawDefaultBackground)
return;
cr.Color = color;
double xp = /*System.Math.Floor*/ (area.X);
if (textEditor.Options.ShowRuler) {
double divider = System.Math.Max (area.X, System.Math.Min (x + TextStartPosition + rulerX, area.X + area.Width));
if (divider < area.X + area.Width) {
cr.Rectangle (xp, area.Y, divider - area.X, area.Height);
cr.Fill ();
cr.Rectangle (divider, area.Y, area.X + area.Width - divider, area.Height);
cr.Color = DimColor (color);
cr.Fill ();
cr.DrawLine (ColorStyle.Ruler, divider, area.Y, divider, area.Y + area.Height);
return;
}
}
cr.Rectangle (xp, area.Y, area.Width, area.Height);
cr.Fill ();
}示例4: Draw
/// <summary>
/// Draw a Grid
/// </summary>
/// <param name="dc"></param>
public override void Draw(Cairo.Context dc)
{
var lBB = GetBB();
dc.Rectangle(lBB.ToCairoRectangle());//DashedPen,
dc.DrawLine(lBB.X + lBB.Width / 2, lBB.Y, lBB.X + lBB.Width / 2, lBB.Y + lBB.Height); //DashedPen,
dc.DrawLine(lBB.X, lBB.Y + lBB.Height/2, lBB.X + lBB.Width , lBB.Y + lBB.Height/2); //DashedPen,
}示例5: Draw
internal protected override void Draw (Cairo.Context cr, Cairo.Rectangle area, DocumentLine lineSegment, int line, double x, double y, double lineHeight)
{
var marker = lineSegment != null ? (MarginMarker)lineSegment.Markers.FirstOrDefault (m => m is MarginMarker && ((MarginMarker)m).CanDraw (this)) : null;
if (marker != null) {
bool hasDrawn = marker.DrawBackground (editor, cr, new MarginDrawMetrics (this, area, lineSegment, line, x, y, lineHeight));
if (!hasDrawn)
marker = null;
}
foldSegmentSize = marginWidth * 4 / 6;
foldSegmentSize -= (foldSegmentSize) % 2;
Cairo.Rectangle drawArea = new Cairo.Rectangle (x, y, marginWidth, lineHeight);
var state = editor.Document.GetLineState (lineSegment);
bool isFoldStart = false;
bool isContaining = false;
bool isFoldEnd = false;
bool isStartSelected = false;
bool isContainingSelected = false;
bool isEndSelected = false;
if (editor.Options.ShowFoldMargin && line <= editor.Document.LineCount) {
startFoldings.Clear ();
containingFoldings.Clear ();
endFoldings.Clear ();
foreach (FoldSegment segment in editor.Document.GetFoldingContaining (lineSegment)) {
if (segment.StartLine.Offset == lineSegment.Offset) {
startFoldings.Add (segment);
} else if (segment.EndLine.Offset == lineSegment.Offset) {
endFoldings.Add (segment);
} else {
containingFoldings.Add (segment);
}
}
isFoldStart = startFoldings.Count > 0;
isContaining = containingFoldings.Count > 0;
isFoldEnd = endFoldings.Count > 0;
isStartSelected = this.lineHover != null && IsMouseHover (startFoldings);
isContainingSelected = this.lineHover != null && IsMouseHover (containingFoldings);
isEndSelected = this.lineHover != null && IsMouseHover (endFoldings);
}
if (marker == null) {
if (editor.GetTextEditorData ().HighlightCaretLine && editor.Caret.Line == line) {
editor.TextViewMargin.DrawCaretLineMarker (cr, x, y, Width, lineHeight);
} else {
var bgGC = foldBgGC;
if (editor.TextViewMargin.BackgroundRenderer != null) {
if (isContainingSelected || isStartSelected || isEndSelected) {
bgGC = foldBgGC;
} else {
bgGC = foldLineHighlightedGCBg;
}
}
cr.Rectangle (drawArea);
cr.SetSourceColor (bgGC);
cr.Fill ();
}
}
if (editor.Options.EnableQuickDiff) {
if (state == TextDocument.LineState.Changed) {
cr.SetSourceColor (lineStateChangedGC);
cr.Rectangle (x + 1, y, marginWidth / 3, lineHeight);
cr.Fill ();
} else if (state == TextDocument.LineState.Dirty) {
cr.SetSourceColor (lineStateDirtyGC);
cr.Rectangle (x + 1, y, marginWidth / 3, lineHeight);
cr.Fill ();
}
}
if (editor.Options.ShowFoldMargin && line <= editor.Document.LineCount) {
double foldSegmentYPos = y + System.Math.Floor (editor.LineHeight - foldSegmentSize) / 2;
double xPos = x + System.Math.Floor (marginWidth / 2) + 0.5;
if (isFoldStart) {
bool isVisible = true;
bool moreLinedOpenFold = false;
foreach (FoldSegment foldSegment in startFoldings) {
if (foldSegment.IsFolded) {
isVisible = false;
} else {
moreLinedOpenFold = foldSegment.EndLine.Offset > foldSegment.StartLine.Offset;
}
}
bool isFoldEndFromUpperFold = false;
foreach (FoldSegment foldSegment in endFoldings) {
if (foldSegment.EndLine.Offset > foldSegment.StartLine.Offset && !foldSegment.IsFolded)
isFoldEndFromUpperFold = true;
}
DrawFoldSegment (cr, x, y, isVisible, isStartSelected);
if (isContaining || isFoldEndFromUpperFold)
cr.DrawLine (isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, foldSegmentYPos - 2);
//.........这里部分代码省略.........
示例6: SetSelColor
/*
public override void SetSelColor()
{
Stroke = new SolidColorBrush(Properties.Settings.Default.Overlay_CoordSelColor);
}
public override void SetStdColor()
{
Stroke = new SolidColorBrush(Properties.Settings.Default.Overlay_CoordColor);
}
*/
/// <summary>
/// Draw an X
/// </summary>
/// <param name="dc"></param>
public override void Draw(Cairo.Context dc)
{
Pen p = IsSelected ? SelPen : StdPen;
Rect lBB = GetBB(Parent.Height);
dc.SetSourceRGB(1, 0, 0); // todo
dc.DrawLine(lBB.TopLeft, lBB.BottomRight);
dc.DrawLine(lBB.BottomLeft, lBB.TopRight);
}示例7: DrawFoldSegment
void DrawFoldSegment (Cairo.Context ctx, double x, double y, bool isOpen, bool isSelected)
{
var drawArea = new Cairo.Rectangle (System.Math.Floor (x + (Width - foldSegmentSize) / 2) + 0.5,
System.Math.Floor (y + (editor.LineHeight - foldSegmentSize) / 2) + 0.5, foldSegmentSize, foldSegmentSize);
ctx.Rectangle (drawArea);
ctx.SetSourceColor (isOpen ? foldBgGC : foldToggleMarkerBackground);
ctx.FillPreserve ();
ctx.SetSourceColor (isSelected ? foldLineHighlightedGC : foldLineGC);
ctx.Stroke ();
ctx.DrawLine (isSelected ? foldLineHighlightedGC : foldToggleMarkerGC,
drawArea.X + drawArea.Width * 2 / 10,
drawArea.Y + drawArea.Height / 2,
drawArea.X + drawArea.Width - drawArea.Width * 2 / 10,
drawArea.Y + drawArea.Height / 2);
if (!isOpen)
ctx.DrawLine (isSelected ? foldLineHighlightedGC : foldToggleMarkerGC,
drawArea.X + drawArea.Width / 2,
drawArea.Y + drawArea.Height * 2 / 10,
drawArea.X + drawArea.Width / 2,
drawArea.Y + drawArea.Height - drawArea.Height * 2 / 10);
}示例8: Draw
internal protected override void Draw (Cairo.Context cr, Cairo.Rectangle area, LineSegment lineSegment, int line, double x, double y, double lineHeight)
{
foldSegmentSize = marginWidth * 4 / 6;
foldSegmentSize -= (foldSegmentSize) % 2;
Cairo.Rectangle drawArea = new Cairo.Rectangle (x, y, marginWidth, lineHeight);
var state = editor.Document.GetLineState (lineSegment);
bool isFoldStart = false;
bool isContaining = false;
bool isFoldEnd = false;
bool isStartSelected = false;
bool isContainingSelected = false;
bool isEndSelected = false;
if (line <= editor.Document.LineCount) {
startFoldings.Clear ();
containingFoldings.Clear ();
endFoldings.Clear ();
foreach (FoldSegment segment in editor.Document.GetFoldingContaining (lineSegment)) {
if (segment.StartLine.Offset == lineSegment.Offset) {
startFoldings.Add (segment);
} else if (segment.EndLine.Offset == lineSegment.Offset) {
endFoldings.Add (segment);
} else {
containingFoldings.Add (segment);
}
}
isFoldStart = startFoldings.Count > 0;
isContaining = containingFoldings.Count > 0;
isFoldEnd = endFoldings.Count > 0;
isStartSelected = this.lineHover != null && IsMouseHover (startFoldings);
isContainingSelected = this.lineHover != null && IsMouseHover (containingFoldings);
isEndSelected = this.lineHover != null && IsMouseHover (endFoldings);
}
var bgGC = foldBgGC;
if (editor.TextViewMargin.BackgroundRenderer != null) {
if (isContainingSelected || isStartSelected || isEndSelected) {
bgGC = foldBgGC;
} else {
bgGC = foldLineHighlightedGCBg;
}
}
cr.Rectangle (drawArea);
cr.Color = bgGC;
cr.Fill ();
if (state == TextDocument.LineState.Changed) {
cr.Color = lineStateChangedGC;
cr.Rectangle (x + 1, y, marginWidth / 3, lineHeight);
cr.Fill ();
} else if (state == TextDocument.LineState.Dirty) {
cr.Color = lineStateDirtyGC;
cr.Rectangle (x + 1, y, marginWidth / 3, lineHeight);
cr.Fill ();
}
if (line < editor.Document.LineCount) {
double foldSegmentYPos = y + System.Math.Floor (editor.LineHeight - foldSegmentSize) / 2;
double xPos = x + System.Math.Floor (marginWidth / 2) + 0.5;
if (isFoldStart) {
bool isVisible = true;
bool moreLinedOpenFold = false;
foreach (FoldSegment foldSegment in startFoldings) {
if (foldSegment.IsFolded) {
isVisible = false;
} else {
moreLinedOpenFold = foldSegment.EndLine.Offset > foldSegment.StartLine.Offset;
}
}
bool isFoldEndFromUpperFold = false;
foreach (FoldSegment foldSegment in endFoldings) {
if (foldSegment.EndLine.Offset > foldSegment.StartLine.Offset && !foldSegment.IsFolded)
isFoldEndFromUpperFold = true;
}
DrawFoldSegment (cr, x, y, isVisible, isStartSelected);
if (isContaining || isFoldEndFromUpperFold)
cr.DrawLine (isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, foldSegmentYPos - 2);
if (isContaining || moreLinedOpenFold)
cr.DrawLine (isEndSelected || (isStartSelected && isVisible) || isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, foldSegmentYPos + foldSegmentSize + 2, xPos, drawArea.Y + drawArea.Height);
} else {
if (isFoldEnd) {
double yMid = drawArea.Y + drawArea.Height / 2;
cr.DrawLine (isEndSelected ? foldLineHighlightedGC : foldLineGC, xPos, yMid, x + marginWidth - 2, yMid);
cr.DrawLine (isContainingSelected || isEndSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, yMid);
if (isContaining)
cr.DrawLine (isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, yMid + 1, xPos, drawArea.Y + drawArea.Height);
} else if (isContaining) {
cr.DrawLine (isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, drawArea.Y + drawArea.Height);
}
//.........这里部分代码省略.........
示例9: Draw
public override void Draw (TextEditor editor, Cairo.Context cr, double y, LineMetrics metrics)
{
var startOffset = metrics.TextStartOffset;
int endOffset = metrics.TextEndOffset;
double startXPos = metrics.TextRenderStartPosition;
double endXPos = metrics.TextRenderEndPosition;
var layout = metrics.Layout.Layout;
int markerStart = line.Offset + startColumn;
int markerEnd = line.Offset + endColumn;
if (markerEnd < startOffset || markerStart > endOffset)
return;
double @from;
double to;
if (markerStart < startOffset && endOffset < markerEnd) {
@from = startXPos;
to = endXPos;
} else {
int start = startOffset < markerStart ? markerStart : startOffset;
int end = endOffset < markerEnd ? endOffset : markerEnd;
int x_pos = layout.IndexToPos (start - startOffset).X;
@from = startXPos + (int)(x_pos / Pango.Scale.PangoScale);
x_pos = layout.IndexToPos (end - startOffset).X;
to = startXPos + (int)(x_pos / Pango.Scale.PangoScale);
}
@from = System.Math.Max (@from, editor.TextViewMargin.XOffset);
to = System.Math.Max (to, editor.TextViewMargin.XOffset);
if (@from < to) {
cr.DrawLine (editor.ColorStyle.GetForeground (editor.ColorStyle.GetChunkStyle (style)), @from + 0.5, y + editor.LineHeight - 1.5, to + 0.5, y + editor.LineHeight - 1.5);
}
}示例10: Measure
public Size Measure(Cairo.Context c, Control control)
{
Line line = control as Line;
Cairo.PointD p1 = new Cairo.PointD (line.Location.X ,line.Location.Y);
Cairo.PointD p2 = new Cairo.PointD (line.End.X, line.End.Y);
var r = c.DrawLine (p1, p2, line.BackgroundColor.ToCairoColor (), line.LineWidth, line.LineType, false);
return new Size (r.Width, r.Height);
}示例11: Render
public void Render(Cairo.Context c, Control control)
{
Line line = control as Line;
Cairo.PointD p1 = new Cairo.PointD (line.Location.X ,line.Location.Y);
Cairo.PointD p2 = new Cairo.PointD (line.End.X, line.End.Y);
c.DrawLine (p1, p2, line.BackgroundColor.ToCairoColor (), line.LineWidth, line.LineType, true);
}