PlantUML Previewer -- A image viewer for PlantUML file

The purpose of this project is to provide a simple way to display images in Java (using Swing) to aid in preview PlantUML file.

Downloads

Please refer to the Releases page.

Instruction

To run this file, dowload JDK in your pc computer. After that you can open the downloader files (plantuml-previewer*.jar).

There are two version of plantuml previewer:

• plantuml-previewer*-noplantuml.jar: This version is not include plantuml jar inside, and you need to download a plantuml*.jarfrom PlantUML Releases. After downloaded, rename it toplantuml.jar and place in same directory with this version to make it working.
• plantuml-previewer*.jar: This version is just included plantuml jar inside, but the version of plantuml cannot be changed.

Features

• Automatic reload file when modified (e.g. from editor)
• Support menu bar
• Support drag image
• Support zooming image
• Support multiple image with newpage
• Support multiple image with @startuml ... @enduml in one file (e.g. markdown)

Keyboard support

• o: Open file for viewer to preview
• q: Quit viewer
• r: Reload Image
• m: Toggle Menu
• c: Toggle Scroll
• plus: Zoom in
• minus: Zoom out
• equal: Zoom to image size
• a: Zoom to best fit the viewer size
• s: Zoom to width fit the viewer size
• n: Go to next image in file
• p: Go to previous image in file
• h/j/k/l: Move the image to left/down/up/right
• shift + h/j/k/l: Move the image to left/down/up/right x5 speed
• ←/↓/↑/→: Similar to h/j/k/l
• shift + ←/↓/↑/→: Similar to shift + h/j/k/l
• 0: Move image to begin (leftmost)
• shift + 4: Move image to end (rightmost)
• g: Move image to top
• shift + g: Move image to bottom

Mouse support

• mouse click -> move mouse -> release click: Drag -> Move -> Drop image
• mouse wheel up: Move image up
• mouse wheel down: Move image down
• shift + mouse wheel up: Move image left
• shift + mouse wheel down: Move image right
• ctrl + mouse wheel up: Zoom in
• ctrl + mouse wheel down: Zoom out

Note: The wheel up and down may be reversed base on system.

Demo

• Open file + show menu + navigate image:

• Auto reload image + zooming:

TODO

• Main panel
• Status panel
• Menu bar
• PlantUML image viewer
• Image zoom
• Image manipulation
• Keybindings
• Keybindings Help
• Open File Feature
• Documentation
• About
• Export File Feature
• PlantUML server support
• External PlantUML source support
• User Preferences support
• Colorschemes support
• Svg Preview support