oracle forms-canvas types

Working with Canvases and Windows

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Objectives

• Describe Canvases• Type of Canvases• Creating different types of canvases• Properties of Canvases and Windows


Canvas and windows

• Canvas: Surface on which you “paint” visual objectsTo see a canvas and its objects, display the canvas in a window.

• Window: Container for Form Builder visual objectsTwo types

- Modal- Modeless


Canvases, windows and viewport

Forms MDIWindow

Canvas

Forms SDIWindow


Types of canvases

• Form Builder Provides 4 different types of canvases:1. Content Canvas2. Stacked Canvas3. Toolbar Canvas4. Tab Canvas


Types of Canvases

ContentCanvas

StackedCanvas Tab

Page

TabCanvas

VerticalToolbarCanvas

HorizontalToolbarCanvas


Content Canvas

• It’s the Default Canvas• Also Known as Base Canvas• View occupies the complete window• At a time one content canvas is display in a window.• Every window must contain at least one content canvas


Creating a Content Canvas

• Implicitly created– Using the Layout wizard– Layout Editor

• Explicitly created– Select the Canvas node in Object Navigator and click create icon.


Content Canvas Properties

Height

Width

Canvas

Viewport X/YPositionon canvas

Viewport


Stacked Canvas

• Displayed on top of a content canvas• Shares a window with a content canvas• Size:

– Usually smaller than the content canvas in the same window– Determined by viewport size

• Created in:– Object Navigator– Layout Editor


Toolbar Canvas

• Three types:– Vertical toolbar– Horizontal toolbar– Forms MDI toolbar

• Provide:– Standard look and feel– Alternative to menu or function key operation– Generally used for placing push Buttons with functionality


Toolbar Canvas Properties

• Canvas Type• Window• Width• Height

• Form Module properties:– Form Horizontal Toolbar Canvas– Form Vertical Toolbar Canvas


Tab Canvas

• Enables you to organize and display related information on separate tabs

• Consists of one or more tab pages• Provides easy access to data• Created in:

– Object Navigator– Layout Editor


Tab Canvas Properties


Window Properties

• Title• Window Style• Modal• Hide On Exit• Functional properties GUI options:

- Close Allowed - Maximize Allowed- Move Allowed - Minimize Allowed- Resize Allowed - Inherit Menu


Summary

• Creating Canvases• Types of Canvases• Properties of Canvases• Windows and its properties


oracle forms-canvas types

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