Implement public custom widget API #108
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This commit adds twin_custom_widget_t API: - twin_custom_widget_create() for widget creation with user data - Helper functions for width, height, pixmap access, and paint queuing - twin_matrix_transform_x/y() for coordinate transformations - Proper dispatch mechanism calling base widget handlers first It refactors all demo applications to use public API only: - Remove twin_private.h dependencies from 'apps' - Convert clock, line, spline, animation, image demos - Replace internal _twin_* calls with public equivalents Close #9
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This commit adds twin_custom_widget_t API:
It refactors all demo applications to use public API only:
Close #9
Summary by Bito
This pull request introduces a new public custom widget API, enhancing the creation and management of widgets with user-defined data. It refactors demo applications to eliminate dependencies on private headers, improving modularity and maintainability. Key features include new functions for widget dimensions, repaint requests, and coordinate transformations, along with a robust dispatch mechanism for event handling.