package net.sourceforge.barbecue.output;
public interface Output {
/**
* "Draws" a bar at the given coordinates.
* @param x the x coordinate
* @param y the y coordinate
* @param width the width
* @param height the height
* @param paintWithForegroundColor if true, use the foreground color, otherwise use the background color
* @return the width of the bar drawn
*/
int drawBar(int x, int y, int width, int height, boolean paintWithForegroundColor) throws OutputException;
/**
* Sets up the drawing environment. Called before drawing starts.
* Matched with call to endDraw() at the end. This allows for caching as needed.
*/
void beginDraw() throws OutputException;
/**
* Balanced with startDraw(), used for caching, output of epilogues.
* @param width The output width (in pixels) of the barcode
* @param height The output height (in pixels) of the barcode.
*/
void endDraw(int width, int height) throws OutputException;
/**
* Draw the specified text.
* @param text text to draw
* @param layout the text layout calculator
* @return the height of this text
*/
int drawText(String text, LabelLayout layout) throws OutputException;
/**
* Swaps the foreground and background colours of the output.
*/
void toggleDrawingColor();
/**
* Paint the background the background colour, based on the height and the width.
* @param x the x coordinate
* @param y the y coordinate
* @param width the width to be painted
* @param height the height to be painted
*/
void paintBackground(int x, int y, int width, int height);
}
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