oracle.dss.graph
Class GraphPrinter

java.lang.Object
  oracle.dss.dataView.ViewPrinter
      oracle.dss.graph.GraphPrinter

All Implemented Interfaces:

java.awt.print.Printable, UIViewPrinter

public class GraphPrinter
extends ViewPrinter

Printer for a Graph. When you use the PrintDialog object from the oracle.dss.dataView.gui package, you do not need to call the methods in this class. When you use your own UI, you call methods on this GraphPrinter to specify how to print a Graph and to print the Graph. If you assume responsibility for page layout and calculation, you cannot use the PrintDialog; you must call methods on this GraphPrinter to print.

The following example shows how to print a Graph, using the oracle.dss.dataView.gui.PrintDialog.

    GraphPrinter printer = new GraphPrinter();
    //One way to get a frame in which to display the Print dialog
    Frame frame = oracle.bali.ewt.util.WindowUtils.parentFrame(graph);
    PrintDialog dialog = new PrintDialog(frame, printer);
    dialog.show();
    dialog.dispose();
    dialog = null;
 

The printing APIs in this class are based on Java 2D printing API. AWT Printing is not supported.

See Also:

ViewPrinter, oracle.dss.dataView.gui.PrintDialog

Nested Class Summary

Nested classes/interfaces inherited from class oracle.dss.dataView.ViewPrinter

ViewPrinter.HPosWrapper

Field Summary

Fields inherited from class oracle.dss.dataView.ViewPrinter

_callback, ABOVE_FOOTER, ADJUST_FOR_HEADERS_AND_FOOTERS, ALL_LOGICAL_PAGES, BELOW_HEADER, BOTTOM_FORMATTED_TEXT_AREA, bottomFTAHeight, bottomMargin, callbackMask, CenterFooter, CenterHeader, CURRENT_LOGICAL_PAGE, currentLogicalPage, currLogPage, dataUnavailableMsg, dataView, dimension, fitToNumPagesTall, fitToNumPagesWide, FOOTER_CENTER, FOOTER_LEFT, FOOTER_RIGHT, footerHeight, footnote, FOOTNOTE, footnoteHeight, GRIDVIEW_COLUMN_HEADER, GRIDVIEW_ROW_HEADER, HEADER_CENTER, HEADER_LEFT, HEADER_RIGHT, headerHeight, HEADERS_AND_FOOTERS_ALL, HEADERS_AND_FOOTERS_NONE, IGNORE_HEADERS_AND_FOOTERS, LeftFooter, LeftHeader, leftMargin, logicalPage, m_aboveFooterWidth, m_belowHeaderWidth, m_bottomFormattedText, m_bPreviewMode, m_graphPrintScaleType, m_gridlinesVisible, m_gridViewPrintScaleType, m_insuffSpace, m_pageFormat, m_repeatComponents, m_selectedHPos, m_seqPageNumber, m_tokenSubstitution, m_topFormattedText, MarginAdjustment, MIN_PRINT_ZOOM_FACTOR, OCCLUDE_HEADERS_AND_FOOTERS, oldBottomFTASize, oldFootnoteSize, oldSubtitleSize, oldTitleSize, oldTopFTASize, ORIGINAL_SIZE, PAGE_HEADER, PAGING_CONTROL_GAP, paperHeight, paperWidth, pIndex, printableHeight, printableWidth, printByColumns, printZoomFactor, rangeType, record, repeatAdornHeight, resize, RightFooter, RightHeader, rightMargin, SCALE_TO_FIT_FULL_PAGE, SCALE_TO_FIT_PAGE, SCALE_TO_FIT_PAGES, SCALE_TO_ZOOM_FACTOR, SELECTED_LOGICAL_PAGES, subSetRecord, subtitle, SUBTITLE, subtitleHeight, TEXT_COMPONENTS_ALL, TEXT_COMPONENTS_NONE, title, TITLE, titleHeight, TOP_FORMATTED_TEXT_AREA, topFTAHeight, topMargin, totalAdornHeight, UNIT_CM, UNIT_INCHES, UNIT_PIXELS, units, viewDim, viewLogPage, viewLogPageNum

Fields inherited from interface java.awt.print.Printable

NO_SUCH_PAGE, PAGE_EXISTS

Fields inherited from interface oracle.dss.dataView.UIViewPrinter

CROSSTAB_PRINTER, GRAPH_PRINTER, TABLE_PRINTER, WORKSHEET_WITH_CROSSTAB_AND_GRAPH_PRINTER, WORKSHEET_WITH_CROSSTAB_PRINTER, WORKSHEET_WITH_GRAPH_PRINTER, WORKSHEET_WITH_TABLE_AND_GRAPH_PRINTER, WORKSHEET_WITH_TABLE_PRINTER

Constructor Summary

GraphPrinter(Graph g)
Constructor.

Method Summary

protected boolean	checkForNoData()
void	endPrint() Sets the Graph back to its original state.
protected void	fetchAllData()
Graph	getGraph() Retrieves the Graph that this GraphPrinter prints.
int	getScaleFontSize() Retrieves which text components should be resized when the Graph is scaled to a different size for printing.
int	getViewPrinterType() Retrieves the type of ViewPrinter.
boolean	goToFirstPage() Deprecated. As of 1.6.0.9, replaced by prepareFirstPage(Graphics)
boolean	goToNextPage() Deprecated. As of 1.6.0.9, replaced by prepareNextPage(Graphics)
boolean	goToPrevPage() Deprecated. As of 1.6.0.9, replaced by preparePrevPage(Graphics)
boolean	hasNextPage() Indicates whether the view has a physical page after the current physical page.
boolean	hasPrevPage() Indicates whether the view has a physical page before the current physical page.
boolean	isFirstPhysicalPage() Indicates whether the current physical page is the first physical page in the current logical page.
boolean	isLastPhysicalPage() Indicates whether the current physical page is the last physical page in the current logical page.
boolean	prepareFirstPage(java.awt.Graphics g) Prepares the first physical page in the graph for printing and makes it the current page to print.
boolean	prepareNextPage(java.awt.Graphics g) Prepares the next physical page for printing and makes it the current page to print.
boolean	preparePrevPage(java.awt.Graphics g) Prepares the previous physical page for printing and makes it the current page to print.
boolean	printPage(java.awt.Graphics g) Prints the Graph to a Graphics object.
protected void	printPages(java.awt.PrintJob pjob, boolean currentLogPage) Deprecated. As of 3.2.0.16, replaced by 2D printing API
protected void	printToGraphics(java.awt.Graphics g, PaginationRecord record)
protected void	resetCurrentLogicalPage()
protected void	setDataview(Dataview dv)
void	setGraph(Graph graph) Specifies the Graph that this GraphPrinter should print.
boolean	setLogicalPage(int[] hPos) Specifies the logical page to print, when you use the printPage method to print.
void	setScaleFontSize(int mask) Specifies which text components should be resized when the graph is scaled to a different size for printing.
boolean	startPrint() Puts the Graph in a state for printing.
boolean	startPrint(boolean bPreviewMode) Puts the Graph in a state for printing.

Methods inherited from class oracle.dss.dataView.ViewPrinter

adjustMargins, calcAdornmentsDimension, calcHeaderAndFooterHeights, calcMargins, changePageEdgeCurrentHPos, checkDataSourceLogPage, fetchRowBlock, getBottomMargin, getCustomHeaderAndFooterCallback, getDataview, getDefaultCursor, getFitToNumPagesTall, getFitToNumPagesWide, getFooterMargin, getFooterPainter, getGraphPrintScaleType, getGridViewPrintScaleType, getHeaderAndFooterPainter, getHeaderMargin, getHeaderPainter, getHeadersAndFootersUsingCallback, getLeftMargin, getLineWidth, getLocale, getLogicalPage, getLogicalPageInUse, getMarginAdjustment, getPageFormat, getPrintJob, getPrintScaleType, getPrintZoomFactor, getRangeType, getRightMargin, getSelectedHPos, getSequentialPageNumber, getTokenSubstitution, getTopMargin, getUnits, getViewDimension, getWaitCursor, goToFirstPage, goToLastPage, isDataviewFootnoteVisible, isDataviewSubtitleVisible, isDataviewTitleVisible, isGridlinesVisible, isPrintByColumns, isRepeatComponent, isRepeatHeaders, print, print, print, printHeaderAndFooter, renderFirstPage, renderLastPage, renderPage, resetAdornmentsSize, restoreTitlesFocus, saveAdornmentsSize, saveTitlesFocus, setBottomFormattedText, setBottomMargin, setCustomHeaderAndFooterCallback, setFitToNumPagesTall, setFitToNumPagesWide, setFooterMargin, setGraphPrintScaleType, setGridlinesVisible, setGridViewPrintScaleType, setHeaderMargin, setHeadersAndFootersUsingCallback, setLeftMargin, setLineWidth, setMarginAdjustment, setPageFormat, setPrintByColumns, setPrintJob, setPrintScaleType, setPrintZoomFactor, setRangeType, setRepeatComponent, setRepeatHeaders, setRightMargin, setSelectedHPos, setSequentialPageNumber, setTokenSubstitution, setTopFormattedText, setTopMargin, setUnits, setViewDimension, showPrintJob

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GraphPrinter

public GraphPrinter(Graph g)

Constructor.

Parameters:

g - The Graph that this GraphPrinter prints.

Method Detail

getViewPrinterType

public int getViewPrinterType()

Retrieves the type of ViewPrinter.

Returns:

A constant that represents the specific type of ViewPrinter.

See Also:

UIViewPrinter.GRAPH_PRINTER

startPrint

public boolean startPrint()

Puts the Graph in a state for printing. This method saves the original state of the view, then it applies printing properties to the Graph. It displays the offscreen image (which has the snapshot of the view) on the screen, so that any modifications done to the view during printing will not be seen.

Calling this method is equivalent to calling startPrint(false). It is appropriate for printing or previewing graphs, or printing tables and crosstabs. To preview a table or crosstab, call startPrint(true).

Calls to the print method belong between calls to startPrint and endPrint.

Specified by:

startPrint in class ViewPrinter

Returns:

true if the print job starts successfully, false if the data in the view is not available to this GraphPrinter.

See Also:

endPrint(), startPrint(boolean), printPage(java.awt.Graphics), ViewPrinter.print(boolean), ViewPrinter.renderPage(java.awt.Graphics)

startPrint

public boolean startPrint(boolean bPreviewMode)

Puts the Graph in a state for printing. This method saves the original state of the view, then it applies printing properties to the Graph. It displays the offscreen image (which has the snapshot of the view) on the screen, so that any modifications done to the view during printing will not be seen.

Calls to the print method belong between calls to startPrint and endPrint.

Specified by:

startPrint in interface UIViewPrinter

Specified by:

startPrint in class ViewPrinter

Parameters:

bPreviewMode - true if you are previewing the print job, false if you are actually sending the print job to a printer.

Returns:

true if the print job starts successfully, false if the data in the view is not available to this GraphPrinter.

See Also:

endPrint(), startPrint(boolean), printPage(java.awt.Graphics), ViewPrinter.print(boolean), ViewPrinter.renderPage(java.awt.Graphics)

endPrint

public void endPrint()

Sets the Graph back to its original state. This method removes the offscreen image that the startPrint method displays, and restores the active display of the Graph.

Calls to the print method belong between calls to startPrint and endPrint.

Specified by:

endPrint in interface UIViewPrinter

Specified by:

endPrint in class ViewPrinter

See Also:

startPrint(), ViewPrinter.print(boolean)

isFirstPhysicalPage

public boolean isFirstPhysicalPage()

Indicates whether the current physical page is the first physical page in the current logical page. In graph printing, each logical page is always printed on a single physical page, so this method always returns true.

Specified by:

isFirstPhysicalPage in interface UIViewPrinter

Specified by:

isFirstPhysicalPage in class ViewPrinter

Returns:

true if the current physical page is the first physical page in the current logical page, false if it is not.

See Also:

ViewPrinter.renderPage(java.awt.Graphics)

isLastPhysicalPage

public boolean isLastPhysicalPage()

Indicates whether the current physical page is the last physical page in the current logical page. In graph printing, each logical page is always printed on a single physical page, so this method always returns true.

Specified by:

isLastPhysicalPage in interface UIViewPrinter

Specified by:

isLastPhysicalPage in class ViewPrinter

Returns:

true if the current physical page is the last physical page in the current logical page, false if it is not.

See Also:

ViewPrinter.renderPage(java.awt.Graphics)

getGraph

public Graph getGraph()

Retrieves the Graph that this GraphPrinter prints.

Returns:

The Graph that this GraphPrinter prints.

setGraph

public void setGraph(Graph graph)

Specifies the Graph that this GraphPrinter should print.

Parameters:

graph - The Graph that needs to be printed.

setScaleFontSize

public void setScaleFontSize(int mask)

Specifies which text components should be resized when the graph is scaled to a different size for printing.

Specified by:

setScaleFontSize in interface UIViewPrinter

Specified by:

setScaleFontSize in class ViewPrinter

Parameters:

mask - A constant that represents the set of components to scale with the graph. The constants are listed in the See Also section.

See Also:

ViewPrinter.TEXT_COMPONENTS_ALL, ViewPrinter.TEXT_COMPONENTS_NONE

getScaleFontSize

public int getScaleFontSize()

Retrieves which text components should be resized when the Graph is scaled to a different size for printing.

Specified by:

getScaleFontSize in interface UIViewPrinter

Specified by:

getScaleFontSize in class ViewPrinter

Returns:

A constant that represents which text components should be resized when the Graph is scaled to a different size for printing. The constants are defined in the Graph class, and they start with TEXT_COMPONENTS.

See Also:

GraphConstants.TEXT_COMPONENTS_ALL, GraphConstants.TEXT_COMPONENTS_NONE

printPages

protected void printPages(java.awt.PrintJob pjob,
                          boolean currentLogPage)

Deprecated. As of 3.2.0.16, replaced by 2D printing API

Specified by:

printPages in class ViewPrinter

Parameters:

pJob - the PrintJob object

currentLogPage - true if current logical page only false if all logical pages

For internal use only. Application developers should not use this

This method loops through the entire logical page, gets the graphics object from the PrintJob calls printToGraphics(). If more than one logical page needs to be printed, it loops through all logical pages. At the beginning of printing each logical page, calls calcAdornmentsDimension() to calculate the heights of the adornments.

printPage

public boolean printPage(java.awt.Graphics g)

Prints the Graph to a Graphics object. This method is useful only when you assume responsibility for the print job.

This method renders the Graph in the Dimension that is specified by the ViewDimension attribute of this GraphPrinter.

Parameters:

g - The Graphics object to which to print the Graph. The Graphics object must be an instance of Graphics2D.

Returns:

true if the print job is successful, false if the data in the view is not available to this GraphPrinter.

printToGraphics

protected void printToGraphics(java.awt.Graphics g,
                               PaginationRecord record)

Specified by:

printToGraphics in class ViewPrinter

Parameters:

g - the Graphics object

record - The pagination record to use for printing on the Graphics object.

For internal use only. Application developers should not use this

Prints Graph onto the Graphics object using the information present in the PaginationRecord.

goToFirstPage

public boolean goToFirstPage()

Deprecated. As of 1.6.0.9, replaced by prepareFirstPage(Graphics)

The prepareFirstPage method respects the MarginAdjustment property.

Specified by:

goToFirstPage in class ViewPrinter

See Also:

ViewPrinter.setMarginAdjustment(int)

prepareFirstPage

public boolean prepareFirstPage(java.awt.Graphics g)

Prepares the first physical page in the graph for printing and makes it the current page to print. Call this method before you call renderPage to print. Call this method before you call any of the other methods for changing pages. Call this method, even if you only print one physical page. This method performs initialization for printing.

Specified by:

prepareFirstPage in interface UIViewPrinter

Specified by:

prepareFirstPage in class ViewPrinter

Parameters:

g - The Graphics object to which to print the page. The Graphics object must be an instance of Graphics2D.

Returns:

true if the call is successful, false if the first physical page has no data.

See Also:

hasNextPage(), prepareNextPage(java.awt.Graphics), ViewPrinter.renderPage(java.awt.Graphics)

hasNextPage

public boolean hasNextPage()

Indicates whether the view has a physical page after the current physical page. In a graph, each logical page is printed on a single physical page, so this method checks for another logical page. Use this method, with renderPage, when you assume responsibility for the print job.

Specified by:

hasNextPage in interface UIViewPrinter

Specified by:

hasNextPage in class ViewPrinter

Returns:

true if the view has another physical page after the current page, false if the current physical page is the last physical page.

See Also:

ViewPrinter.renderPage(java.awt.Graphics)

goToNextPage

public boolean goToNextPage()

Deprecated. As of 1.6.0.9, replaced by prepareNextPage(Graphics)

The prepareNextPage method respects the MarginAdjustment property.

Specified by:

goToNextPage in class ViewPrinter

See Also:

ViewPrinter.setMarginAdjustment(int)

prepareNextPage

public boolean prepareNextPage(java.awt.Graphics g)

Prepares the next physical page for printing and makes it the current page to print. In a graph, each logical page is printed on a single physical page, so this method changes the current logical page. Use this method when you use renderPage to print. Unless you are certain that there is a next page, you should call hasNextPage before you call this method. Also, before calling this method, call prepareFirstPage.

Specified by:

prepareNextPage in interface UIViewPrinter

Specified by:

prepareNextPage in class ViewPrinter

Parameters:

g - The Graphics object to which to print the page. The Graphics object must be an instance of Graphics2D.

Returns:

true if the call is successful, false if the next physical page has no data.

See Also:

prepareFirstPage(java.awt.Graphics), hasNextPage(), ViewPrinter.renderPage(java.awt.Graphics)

hasPrevPage

public boolean hasPrevPage()

Indicates whether the view has a physical page before the current physical page. In a graph, each logical page is printed on a single physical page, so this method checks for another logical page. Use this method, with renderPage, when you assume responsibility for the print job.

Specified by:

hasPrevPage in interface UIViewPrinter

Specified by:

hasPrevPage in class ViewPrinter

Returns:

true if the view has another physical page before the current page, false if the current physical page is the first physical page.

See Also:

ViewPrinter.renderPage(java.awt.Graphics)

goToPrevPage

public boolean goToPrevPage()

Deprecated. As of 1.6.0.9, replaced by preparePrevPage(Graphics)

The preparePrevPage method respects the MarginAdjustment property.

Specified by:

goToPrevPage in class ViewPrinter

See Also:

ViewPrinter.setMarginAdjustment(int)

preparePrevPage

public boolean preparePrevPage(java.awt.Graphics g)

Prepares the previous physical page for printing and makes it the current page to print. In a graph, each logical page is printed on a single physical page, so this method changes the current logical page. Use this method when you use renderPage to print. Unless you are certain that there is a previous page, you should call hasPrevPage before you call this method. Also, before calling this method, call prepareFirstPage.

Specified by:

preparePrevPage in interface UIViewPrinter

Specified by:

preparePrevPage in class ViewPrinter

Parameters:

g - The Graphics object to which to print the page. The Graphics object must be an instance of Graphics2D.

Returns:

true if the call is successful, false if the previous physical page has no data.

See Also:

ViewPrinter.renderPage(java.awt.Graphics), prepareFirstPage(java.awt.Graphics), hasPrevPage()

setLogicalPage

public boolean setLogicalPage(int[] hPos)

Specifies the logical page to print, when you use the printPage method to print. Call this method after you call the startPrint method for each graph that you print. *

Overrides:

setLogicalPage in class ViewPrinter

Parameters:

hPos - The hPos array that identifies the logical page to print.

Returns:

true if the logical page has been set, false if the data in the view is not available to this ViewPrinter.

See Also:

printPage(java.awt.Graphics), oracle.dss.dataView.gui.PrintDialog, DataAccess.getFirstHPos(int), DataAccess.getNextHPos(int, int[])

setDataview

protected void setDataview(Dataview dv)

Overrides:

setDataview in class ViewPrinter

For internal use only. Application developers should not use this

checkForNoData

protected boolean checkForNoData()

Overrides:

checkForNoData in class ViewPrinter

For internal use only. Application developers should not use this

check if the logical page contains some data

fetchAllData

protected void fetchAllData()

For internal use only. Application developers should not use this

Fetch all data on current logical page.

resetCurrentLogicalPage

protected void resetCurrentLogicalPage()

Specified by:

resetCurrentLogicalPage in class ViewPrinter

For internal use only. Application developers should not use this

This method should be called when the logical page in the DataSource has changed underneath the ViewPrinter, after the ViewPrinter changes it back to what it is supposed to be. This may happen if multiple views are using the same DataSource. This implementation simply fetches all data on the logical page.