Fixed potential memory leak

Replaced GLRenderer::m_width and GLRenderer::m_height with width() and height() calls.

Moved more business logic out of GLRenderer into Canvas. GLRenderer::pick(const QRange&) now returns a set of LDObjects without modifying them. Replaced the GLRenderer::pick(int, int) overload with GLRenderer::pickOneObject.

Made GLRenderer's Model pointer const

Moved more editing-related methods to Canvas.

Removed the unneeded makeCurrent overload

Moved more methods only used by canvas code from GLRenderer to Canvas. Thin border pen is now a static constant.

Moved triangle count rendering to Canvas

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mercurial