Copyright Ó Oracle Corporation, 1999. All rights reserved. 99 Creating Noninput Items

Copyright Oracle Corporation, 1999. All rights reserved.

9999

Creating Noninput ItemsCreating Noninput Items

9-9-22 Copyright Oracle Corporation, 1999. All rights reserved.

ObjectivesObjectives

After completing this lesson, you should be able to do the following:

• Identify item types that do not allow input

• Create a display item

• Create an image item

• Create a sound item

• Create a button

• Create a calculated item

• Create a hierarchical tree item

After completing this lesson, you should be able to do the following:

• Identify item types that do not allow input

• Create a display item

• Create an image item

• Create a sound item

• Create a button

• Create a calculated item

• Create a hierarchical tree item


Noninput ItemsNoninput Items

Item types that do not accept direct user inputinclude:

• Display items

• Image items

• Sound items

• Buttons

• Calculated items

• Hierarchical tree items

Item types that do not accept direct user inputinclude:

• Display items

• Image items

• Sound items

• Buttons




Display ItemsDisplay Items

• Display items are similar to text items.

• Display items cannot:

– Be edited

– Be queried

– Be navigated to

– Accept user input

• Display items can:

– Display data

– Conserve resources

• Display items are similar to text items.

• Display items cannot:

– Be edited

– Be queried

– Be navigated to

– Accept user input

• Display items can:

– Display data

– Conserve resources


Creating a Display ItemCreating a Display Item


Image ItemsImage Items

• Interface control

• Use to display bitmapped images:

– From file system——supported file type

– From database——LONG RAW column


• Use to display bitmapped images:

– From file system——supported file type



Image File FormatsImage File Formats

PICT

TPIC

CALS

TIFF

GIF

JFIF

BMP

RAS

Image itemImage item

Image filesImage files Image filesImage files

Read Write

CALS

GIF

BMP

RAS

JPG

TIFF

JFIF

JPEG

PICT

TPIC


Image-Specific Item PropertiesImage-Specific Item Properties

• Image Format

• Image Depth

• Compression Quality

• Display Quality

• Show Palette

• Sizing Style

• Show Horizontal Scrollbar

• Show Vertical Scrollbar

• Image Format

• Image Depth

• Compression Quality

• Display Quality

• Show Palette

• Sizing Style

• Show Horizontal Scrollbar

• Show Vertical Scrollbar


Image Manipulation PaletteImage Manipulation Palette

ZoomZoom

PanPan

RotateRotate

SelectSelect


Creating an Image ItemCreating an Image Item


Sound ItemsSound Items


• Use to play and record sound:

– From file system——supported sound types



• Use to play and record sound:

– From file system——supported sound types



Sound Item Control Sound Item Control

PlayPlayPlayPlay

RecordRecordRecordRecord

RewindRewindRewindRewind

FastFastFastFastForwardForwardForwardForward

VolumeVolumeVolumeVolume

Time IndicatorTime IndicatorTime IndicatorTime Indicator

SliderSliderSliderSlider


Sound TypesSound Types

AUAU

AIFFAIFF

AIFF-CAIFF-C

WAVWAV


Sound-Specific Item PropertiesSound-Specific Item Properties

• Sound Format

• Audio Channels

• Compress

• Sound Quality

• Show Play/Record/Rewind/Fast Forward/Volume Control/Time Indicator/Slider Button

• Sound Format

• Audio Channels

• Compress

• Sound Quality

• Show Play/Record/Rewind/Fast Forward/Volume Control/Time Indicator/Slider Button


Creating a Sound ItemCreating a Sound Item


ButtonsButtons


• Cannot display/represent data

• Use to initiate an action

• Display as:

– Text button

– Iconic


• Cannot display/represent data

• Use to initiate an action

• Display as:

– Text button

– Iconic


ButtonsButtons

• Use buttons to:

– Move input focus

– Display an LOV

– Invoke an editor

– Invoke another window

– Commit data

– Issue a query

– Perform calculations

• Use buttons to:

– Move input focus

– Display an LOV

– Invoke an editor

– Invoke another window

– Commit data

– Issue a query

– Perform calculations


Button-Specific Item PropertiesButton-Specific Item Properties

• Label

• Mouse Navigate

• Default Button

• Iconic

• Icon Filename

• Tooltip

• Tooltip Visual Attribute Group

• Label

• Mouse Navigate

• Default Button

• Iconic

• Icon Filename

• Tooltip

• Tooltip Visual Attribute Group


Tool TipTool Tip


Creating a ButtonCreating a Button


Calculated ItemsCalculated Items

• They accept item values that are based on calculations.

• They are read-only.

• They can be expressed as:

– Formula

– Summary

• They accept item values that are based on calculations.

• They are read-only.

• They can be expressed as:

– Formula

– Summary


Calculation ModesCalculation Modes

• Formula

– A calculated item value is the result of a horizontal calculation.

– It involves bind variables.

• Summary

– A calculated item value is a vertical calculation.

– A summary is performed on values of a single item over all rows in a block.

• Formula

– A calculated item value is the result of a horizontal calculation.

– It involves bind variables.

• Summary

– A calculated item value is a vertical calculation.

– A summary is performed on values of a single item over all rows in a block.


Item Properties Specific to the Calculated Item

Item Properties Specific to the Calculated Item

Formula

• Calculation Mode

• Formula

Formula


• Formula

Summary


• Summary Function

• Summarized Block

• Summarized Item

Summary


• Summary Function

• Summarized Block

• Summarized Item


Summary FunctionsSummary Functions

• AVG

• COUNT

• MAX

• MIN

• STDDEV

• SUM

• VARIANCE

• AVG

• COUNT

• MAX

• MIN

• STDDEV

• SUM

• VARIANCE


Item Based on a FormulaItem Based on a Formula

ORDERSOrder

Item id Product id Price Qty ShippedItemTotal

12

43

2001205025

5493

1,00048045075

NVL((:s_item.price * :s_item.quantity_shipped),0)NVL((:s_item.price * :s_item.quantity_shipped),0)

Item

Formulaitem


Rules for Formula ItemsRules for Formula Items

• A formula item must not invoke restricted built-ins.

• A formula item cannot execute any DML statements.

• Do not terminate a PL/SQL expression with a semicolon.

• Do not enter a complete PL/SQL statement in assignment expressions.

• A formula item must not invoke restricted built-ins.

• A formula item cannot execute any DML statements.

• Do not terminate a PL/SQL expression with a semicolon.

• Do not enter a complete PL/SQL statement in assignment expressions.


Item Based on a Summary Item Based on a Summary

ORDERSOrder

Item id Product id Price Qty ShippedItemTotal

12

43

2001205025

5493

1,00048045075

Item

2,005Order Total

Summarizeditem

Summaryitem


Rules for Summary ItemsRules for Summary Items

• Summary item must reside in:

– The same block as the summarized item

– A control block with Single Record property set to Yes

• Summarized item must reside in:

– A data block with Query All Records property or Precompute Summaries property set to Yes

– A control block

• Datatype of summary item must be Number, unless using MAX or MIN

• Summary item must reside in:

– The same block as the summarized item

– A control block with Single Record property set to Yes

• Summarized item must reside in:

– A data block with Query All Records property or Precompute Summaries property set to Yes

– A control block

• Datatype of summary item must be Number, unless using MAX or MIN


Creating a Hierarchical TreeCreating a Hierarchical Tree


Hierarchical Tree PropertiesHierarchical Tree Properties

• Allow empty branches

• Multi selection

• Show lines

• Show symbols

• Record group

• Data query

• Allow empty branches

• Multi selection

• Show lines

• Show symbols

• Record group

• Data query


SummarySummary

• Display items

• Image items

• Sound items

• Buttons



• Display items

• Image items

• Sound items

• Buttons




Practice 9 OverviewPractice 9 Overview

This practice covers the following topics:

• Creating display items

• Creating an image item

• Creating iconic buttons

• Creating calculated items:

– Formula

– Summary

This practice covers the following topics:

• Creating display items

• Creating an image item

• Creating iconic buttons

• Creating calculated items:

– Formula

– Summary

Documents

Copyright Ó Oracle Corporation, 1999. All rights reserved. 99 Creating Noninput Items