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V24.2

Palette Repository Editor

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Palette Repository Editor is a design-time dialog that allows you to create, configure, and manage user chart palettes in a TdxChartPaletteRepository component. Double-click the component on a form to invoke this dialog.

VCL Chart Control: The Palette Repository Editor Dialog

The Palettes pane on the left displays STANDARD and CUSTOM groups that contain predefined and user palettes, respectively. The adjacent Colors pane on the right side displays items in the selected palette. Each palette item consists of primary (Color) and secondary (Color2) colors. The Preview column demonstrates gradients between primary and secondary colors for all palette items.

Note

You cannot manage the list of standard palettes or customize them.

Editor Commands

The Palette Repository Editor displays the following commands (from left to right):

VCL Chart Control: Palette Repository Editor Commands

Add Palette
Creates a new empty user palette with an automatically generated name.
Import Palette
Allows you to import palettes previously created by the Export Palette command.
Export Palette
Exports the selected predefined or user palette.
Clone Palette
Clones the selected predefined or user palette as a new user palette.

User Palette Commands

Rename Palette
Allows you to rename the selected user palette.
Remove Palette
Deletes the selected user palette.
Add Palette Item
Creates a new palette item and adds it to the end of the selected user palette.
Remove Palette Item
Deletes the selected palette item. This button is disabled when no item in a user palette is selected.
Swap Colors
Swaps primary and secondary colors in the selected palette item. This button is disabled when no item in a user palette is selected.
Move Item Down | Move Item Up
Allow you to rearrange palette items. These buttons move the selected palette item by one position in the corresponding direction.
Clear Palette
Deletes all items in the selected user palette.

Create a User Palette at Design Time

Click the Add Palette button to create a new empty user palette.

VCL Chart Control: Add a New User Palette

Select the created palette and click the Add Palette Item button to create a new palette item.

VCL Chart Control: Add a New Palette Item

Click the primary or secondary color of the created palette item. You can either select the required color in the drop-down menu[1] or click the ellipsis button to select a custom color in the Color Picker dialog.

VCL Chart Control: Select Palette Item Colors

Repeat these steps to create any number of palette items.

VCL Chart Control: A Populated User Palette Example

Apply a User Palette at Design Time

All user palettes are available for selection in the same list as predefined palettes. Click the drop-down button for the Chart control’s Palette property in the Object Inspector and select the required user palette.

VCL Chart Control: Apply a User Palette in the Object Inspector

Footnotes
  1. The drop-down menu is populated with all standard colors defined in the TdxAlphaColors record.

See Also