67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
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#ifndef ISCREEN_H
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#define ISCREEN_H
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#include "IInterface.h"
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#include "ClipboardTypes.h"
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class IClipboard;
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// the interface for platform dependent screen implementations. each
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// platform will derive a type from IScreen for interaction with the
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// platform's screen that's common to primary and secondary screens.
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class IScreen : public IInterface {
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public:
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// manipulators
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// open the screen
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virtual void open() = 0;
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// runs an event loop and returns when exitMainLoop() is called.
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// must be called between open() and close().
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virtual void mainLoop() = 0;
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// force mainLoop() to return
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virtual void exitMainLoop() = 0;
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// close the screen
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virtual void close() = 0;
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// set the contents of the clipboard
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virtual bool setClipboard(ClipboardID, const IClipboard*) = 0;
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// check clipboard ownership and notify IScreenReceiver (set through
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// some other interface) if any changed
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virtual void checkClipboards() = 0;
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// open/close the screen saver. if notify is true then this object
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// will call IScreenEventHandler's onScreenSaver() when the screensaver
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// activates or deactivates until close. if notify is false then
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// the screen saver is disabled on open and restored on close.
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virtual void openScreenSaver(bool notify) = 0;
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virtual void closeScreenSaver() = 0;
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// activate or deactivate the screen saver
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virtual void screensaver(bool activate) = 0;
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// FIXME -- need explanation
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virtual void syncDesktop() = 0;
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// accessors
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// get the contents of the clipboard
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virtual bool getClipboard(ClipboardID, IClipboard*) const = 0;
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// get the shape of the screen
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virtual void getShape(SInt32& x, SInt32& y,
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SInt32& w, SInt32& h) const = 0;
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// get the current cursor coordinates
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virtual void getCursorPos(SInt32& x, SInt32& y) const = 0;
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// get the cursor center position
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// FIXME -- need better explanation
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virtual void getCursorCenter(SInt32& x, SInt32& y) const = 0;
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};
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#endif
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