salsys.hxx

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#ifndef INCLUDED_VCL_INC_SALSYS_HXX
#define INCLUDED_VCL_INC_SALSYS_HXX

#include <tools/gen.hxx>
#include <vcl/dllapi.h>
#include <rtl/ustring.hxx>

// Button identifier for ShowNativeMessageBox
const int SALSYSTEM_SHOWNATIVEMSGBOX_BTN_OK     = 1;

class VCL_PLUGIN_PUBLIC SalSystem
{
public:
            SalSystem() {}
    virtual ~SalSystem();

    // get info about the display

    /*  Gets the number of active screens attached to the display

        @returns the number of active screens
    */
    virtual unsigned int GetDisplayScreenCount() = 0;
    /*  Queries whether multiple screens are part of one bigger display

        @returns true if screens form one big display
                 false if screens are distinct and windows cannot
                 be moved between, or span multiple screens
    */
    virtual bool IsUnifiedDisplay() { return true; }
    /*  Queries the default screen number. The default screen is the
        screen on which windows will appear if no special positioning
        is made.

        @returns the default screen number
    */
    virtual unsigned int GetDisplayBuiltInScreen() { return 0; }
    /*  Gets relative position and size of the screens attached to the display

        @param nScreen
        The screen number to be queried

        @returns position: (0,0) in case of IsMultiscreen() == true
                           else position relative to whole display
                 size: size of the screen
    */
    virtual tools::Rectangle GetDisplayScreenPosSizePixel( unsigned int nScreen ) = 0;

    /*  Shows a native message box with the specified title, message and button
        combination.

        @param  rTitle
        The title to be shown by the dialog box.

        @param  rMessage
        The message to be shown by the dialog box.

        @returns the identifier of the button that was pressed by the user.
        See button identifier above. If the function fails the
        return value is 0.
    */
    virtual int ShowNativeMessageBox( const OUString& rTitle,
                                      const OUString& rMessage ) = 0;

};

VCL_DLLPUBLIC SalSystem* ImplGetSalSystem();

#endif // INCLUDED_VCL_INC_SALSYS_HXX

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