Add bullet-style dirty indicator for CTabFolder tabs#3141
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Add bullet-style dirty indicator for CTabFolder tabs#3141vogella wants to merge 1 commit intoeclipse-platform:masterfrom
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When enabled via CTabFolder.setDirtyIndicatorCloseStyle(true), dirty tabs show a filled circle at the close button location instead of the traditional '*' prefix. The bullet transforms into the close button on hover, matching the behavior of VS Code and similar editors. This is opt-in (disabled by default) to preserve backward compatibility. The feature adds: - CTabFolder.setDirtyIndicatorCloseStyle(boolean) / getDirtyIndicatorCloseStyle() - CTabItem.setShowDirty(boolean) / getShowDirty() - Rendering via fillOval for cross-platform consistency - Snippet391 demonstrating the feature Based on the approach from PR eclipse-platform#1632 by schneidermic0, with fixes for the copy-paste bug, preference toggle support per PMC request, and fillOval rendering instead of drawString for pixel-perfect results. See: eclipse-platform#1632 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
*prefix approachCTabFolder.setDirtyIndicatorCloseStyle(true)and mark items dirty viaCTabItem.setShowDirty(true)New API
CTabFolder:
setDirtyIndicatorCloseStyle(boolean)— enables/disables the bullet-on-close-button stylegetDirtyIndicatorCloseStyle()— returns current settingCTabItem:
setShowDirty(boolean)— marks an item as having unsaved changesgetShowDirty()— returns the dirty stateDesign Decisions
falseby default) to preserve backward compatibility, per PMC feedback from the Dec 2024 dev callfillOvalrendering instead ofdrawString("●")for pixel-perfect cross-platform consistencycloseRectas the close button, keeping space allocation consistent and naturally enabling hover-to-reveal-close interactionContext
This continues the work started in #1632 by @schneidermic0 (who is unable to continue). Key improvements over that draft:
return showClose→return showDirty)fillOvalinstead ofdrawStringfor renderingA companion change in
eclipse.platform.uiis needed to wire this up to the workbench editor tabs (the UI side would callsetDirtyIndicatorCloseStyle(true)on the CTabFolder andsetShowDirty(true/false)on items, and stop prepending*when the new style is active).Test plan
mvn compilepasses forbundles/org.eclipse.swtTest_org_eclipse_swt_custom_CTabItemforsetShowDirty/getShowDirtyandsetDirtyIndicatorCloseStyle/getDirtyIndicatorCloseStyledirtyIndicatorCloseStyleisfalse🤖 Generated with Claude Code