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Shane Ringrose
1070179617
Implements the long-requested batch/headless export (bugtracker #171, GitHub #309): render a project's diagrams to files without opening the GUI. qelectrotech --export-pdf <project.qet> <output.pdf> one multi-page PDF qelectrotech --export-png <project.qet> <output_dir> one PNG per diagram qelectrotech --export-svg <project.qet> <output_dir> one SVG per diagram main.cpp detects an export request before SingleApplication is created (so the arguments are not forwarded to a running instance), spins up a plain QApplication for rendering, and exits with the export's status code. Rendering reuses Diagram::render() over BorderTitleBlock::borderAndTitleBlockRect(), the same geometry the GUI print/export path uses, so output matches the editor. Image files are named NN_Title.<ext>. New files: sources/cli_export.{h,cpp}, registered in cmake/qet_compilation_vars.cmake.