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Analysis

Overview

When the fill style is "pattern", the background of the frame or the page becomes another image which may be repeated.

Task requirements

• If the user chooses the PATTERN fill type in the frame or page border & fill HUD, a "pattern settings" button should be shown instead of the color square.
• The default pattern fill is empty.
• When the pattern settings button is clicked, the pattern settings window is opened, allowing the user to change the pattern settings.
• The pattern settings window has the following elements:
  • A drop box, where an image can be dragged from the resources. This image becomes the pattern; dragging a second image onto the drop box changes the pattern to the second image.
  • Image x- and y-offset fields: these can either be in percent or in points, default being 0; these values can be negative. The image is moved right and down from the top left corner of the frame by the value of the offset.
  • An opacity slider, allowing changes to the opacity of the image. Default is 100% opaque.
  • A "repeat" checkbox. If this is checked and the image is smaller than the frame, the image repeats. If it is not checked, the image does not repeat.
  • An "Okay" button: when this is clicked, the pattern settings window is closed.

Task result

The result of this task is source code.

Implementation idea

Related

FRAME_APPEARANCE_HALO_AND_HUD_R0
FRAME_FILLING_GRADIENT_R0
FRAME_FILLING_SOLID_R0
FRAME_FILLING_IMAGE_R0

How to demo

• Make a new book, add an image to the resources. Open page's border & fill HUD, choose pattern fill, set the image in the resources as the pattern image, change settings to demonstrated possibilities. Then add a text frame to a page. Open frame's border & fill HUD, choose pattern fill, set the image in the resources as the pattern image, change settings to something different from what is used on the page.

Design

Implementation

^{(Implementation results should be described and linked here (from the wiki or the repository))}

Testing

Comments

• It should be possible to rotate the image used for the pattern.
• It should be possible to resize the image used for the pattern, proportionately as well as disproportionately.
  • The image rotation field, a field where the author can enter a rotation percentage in degrees clockwise. Default is 0.
  • Image width & height fields: these can either be in percent (default being 100%) or in points (default being the images size).
  • A "lock" setting: if this is set, width and height change proportionately.