ICanvas
public interface ICanvas
Represents generic canvas for barcode generation drawing.
Methods
clear(int color)
public abstract void clear(int color)
Clears all canvas with specified color.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| color | int | Color to clear. |
createBrush(int color)
public abstract IBrush createBrush(int color)
Creates brush for current canvas.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| color | int | SOLID color of the brush. |
Returns: com.aspose.barcode.drawing.IBrush - Brush, which can be used with this canvas.
createPen(int color, float thickness)
public abstract IPen createPen(int color, float thickness)
Creates pen for current canvas.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| color | int | SOLID color of the pen. |
| thickness | float | Thickness in pixels of the pen. |
Returns: com.aspose.barcode.drawing.IPen - Pen, which can be used with this canvas.
drawLine(IPen pen, Point p1, Point p2)
public abstract void drawLine(IPen pen, Point p1, Point p2)
Draws line between two points with specified pen.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| pen | com.aspose.barcode.drawing.IPen | Pen to draw. |
| p1 | android.graphics.Point | Start line point. |
| p2 | android.graphics.Point | End line point. |
drawLine(IPen pen, PointF p1, PointF p2)
public abstract void drawLine(IPen pen, PointF p1, PointF p2)
Draws line between two points with specified pen.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| pen | com.aspose.barcode.drawing.IPen | Pen to draw. |
| p1 | android.graphics.PointF | Start line point. |
| p2 | android.graphics.PointF | End line point. |
drawRectangle(IPen pen, System.Drawing.Rectangle rectangle)
public abstract void drawRectangle(IPen pen, System.Drawing.Rectangle rectangle)
Draws rectangle border with specified pen.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| pen | com.aspose.barcode.drawing.IPen | Pen to draw. |
| rectangle | com.aspose.ms.System.Drawing.Rectangle | Rectangle coordinates in pixels to draw. |
drawRectangle(IPen pen, System.Drawing.RectangleF rectangle)
public abstract void drawRectangle(IPen pen, System.Drawing.RectangleF rectangle)
Draws rectangle border with specified pen.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| pen | com.aspose.barcode.drawing.IPen | Pen to draw. |
| rectangle | com.aspose.ms.System.Drawing.RectangleF | Rectangle coordinates in pixels to draw. |
drawText(String text, TextPaint font, IBrush brush, PointF origin)
public abstract void drawText(String text, TextPaint font, IBrush brush, PointF origin)
Draws text from specified origin point.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| text | java.lang.String | Text to draw. |
| font | android.text.TextPaint | Font of the text. |
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill text. |
| origin | android.graphics.PointF | Origin point of the text. |
drawText(String text, TextPaint font, IBrush brush, System.Drawing.RectangleF bounds)
public abstract void drawText(String text, TextPaint font, IBrush brush, System.Drawing.RectangleF bounds)
Draws text in the specified text box rectangle.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| text | java.lang.String | Text to draw. |
| font | android.text.TextPaint | Font of the text. |
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill text. |
| bounds | com.aspose.ms.System.Drawing.RectangleF | Bounds of the text box. |
drawText(String text, TextPaint font, IBrush brush, System.Drawing.RectangleF bounds, TextOptions options)
public abstract void drawText(String text, TextPaint font, IBrush brush, System.Drawing.RectangleF bounds, TextOptions options)
Draws text in the specified text box rectangle with additional options.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| text | java.lang.String | Text to draw. |
| font | android.text.TextPaint | Font of the text. |
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill text. |
| bounds | com.aspose.ms.System.Drawing.RectangleF | Bounds of the text box. |
| options | com.aspose.barcode.drawing.TextOptions | Additional drawing options. |
drawText(String text, TextPaint font, IBrush brush, float x, float y)
public abstract void drawText(String text, TextPaint font, IBrush brush, float x, float y)
Draws text from specified origin point.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| text | java.lang.String | Text to draw. |
| font | android.text.TextPaint | Font of the text. |
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill text. |
| x | float | X-coordinate in pixels of origin point. |
| y | float | Y-coordinate in pixels of origin point. |
fillEllipse(IBrush brush, System.Drawing.RectangleF rectangle)
public abstract void fillEllipse(IBrush brush, System.Drawing.RectangleF rectangle)
Fills ellipse with specified brush.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill. |
| rectangle | com.aspose.ms.System.Drawing.RectangleF | Bounds of ellipse in pixels to fill. |
fillPolygon(IBrush brush, Point[] points)
public abstract void fillPolygon(IBrush brush, Point[] points)
Parameters:
| Parameter | Type | Description |
|---|---|---|
| brush | com.aspose.barcode.drawing.IBrush | |
| points | android.graphics.Point[] |
fillRectangle(IBrush brush, System.Drawing.Rectangle rectangle)
public abstract void fillRectangle(IBrush brush, System.Drawing.Rectangle rectangle)
Fills rectangle with specified brush.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill. |
| rectangle | com.aspose.ms.System.Drawing.Rectangle | Rectangle coordinates in pixels to fill. |
fillRectangle(IBrush brush, System.Drawing.RectangleF rectangle)
public abstract void fillRectangle(IBrush brush, System.Drawing.RectangleF rectangle)
Fills rectangle with specified brush.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| brush | com.aspose.barcode.drawing.IBrush | Brush to fill. |
| rectangle | com.aspose.ms.System.Drawing.RectangleF | Rectangle coordinates in pixels to fill. |
getCanvasSize()
public abstract System.Drawing.Size getCanvasSize()
Returns: com.aspose.ms.System.Drawing.Size - Gets actual canvas size in pixels.
getOffsetX()
public abstract float getOffsetX()
Returns: float - Gets translate offset X in pixels.
getOffsetY()
public abstract float getOffsetY()
Returns: float - Gets translate offset Y in pixels.
getQualityMode()
public abstract CanvasQualityMode getQualityMode()
Returns: com.aspose.barcode.drawing.CanvasQualityMode - Gets image quality mode.
rotateTransform(float angle)
public abstract void rotateTransform(float angle)
Applies rotate transform for all further drawing.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| angle | float | Angle of rotation in degrees. |
setScaleX(float scaleX)
public abstract void setScaleX(float scaleX)
Sets scale factor for all further drawings
Parameters:
| Parameter | Type | Description |
|---|---|---|
| scaleX | float | scale factor |
translateTransform(float offsetX, float offsetY)
public abstract void translateTransform(float offsetX, float offsetY)
Applies translate transform for all further drawing.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| offsetX | float | Offset X in pixels. |
| offsetY | float | Offset Y in pixels. |