feat: add shift key constraint for drawing straight lines#6
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- Hold Shift while drawing to constrain points to horizontal, vertical, or 45° diagonal lines - Smart direction detection automatically chooses best straight line based on mouse movement - Real-time visual feedback shows constrained position in hover preview - Integrates seamlessly with existing drawing, undo/redo, and transform systems - Tracks last drawn point for accurate line constraint calculations
moritzsalla
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- Show dashed line preview from last point to mouse cursor when shift is held - Remove angle constraints - allow exact straight lines like Photoshop - Add real-time shift key state tracking for smooth visual feedback - Line preview only appears when shift is actively pressed
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Summary
Technical Implementation
useRefto remember the most recent point for constraint calculationsTest Plan