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// 18 december 2015
// TODOs
// - things look very wrong on initial draw
// - initial scrolling is not set properly
// - should background be inherited from parent control?
struct uiArea {
uiWindowsControl c;
HWND hwnd;
uiAreaHandler *ah;
int width, height;
BOOL scrolling;
int scrollWidth;
int scrollHeight;
int hscrollpos;
int vscrollpos;
int hwheelCarry;
int vwheelCarry;
clickCounter cc;
BOOL capturing;
BOOL inside;
BOOL tracking;
int bgR, bgG, bgB;
int openGL;
uiGLContext* glcontext;
ID2D1HwndRenderTarget *rt;
};
// areadraw.cpp
extern BOOL areaDoDraw(uiArea *a, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *lResult);
extern void areaDrawOnResize(uiArea *, RECT *);
// areascroll.cpp
extern BOOL areaDoScroll(uiArea *a, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *lResult);
extern void areaScrollOnResize(uiArea *, RECT *);
extern void areaUpdateScroll(uiArea *a);
// areaevents.cpp
extern BOOL areaDoEvents(uiArea *a, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *lResult);
// areautil.cpp
extern void loadAreaSize(uiArea *a, double *width, double *height);
extern void pixelsToDIP(uiArea *a, double *x, double *y);
extern void dipToPixels(uiArea *a, double *x, double *y);
// gl.cpp
extern uiGLContext* createGLContext(uiArea* a, int vermajor, int verminor);
extern void freeGLContext(uiGLContext* c);
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