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//! Class definition for the Dasher screen
// DasherScreen.h
//
/////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2001-2002 David Ward
//
/////////////////////////////////////////////////////////////////////////////
#ifndef __DasherScreen_h_
#define __DasherScreen_h_
#include "DasherWidgetInterface.h"
#include "DasherTypes.h"
namespace Dasher {class CDasherScreen;}
class Dasher::CDasherScreen
{
public:
//! \param width Width of the screen
//! \param height Height of the screen
CDasherScreen(int width,int height)
: m_iWidth(width), m_iHeight(height) {}
//! Set the widget interface used for communication with the core
virtual void SetInterface(CDasherWidgetInterface* DasherInterface) {m_DasherInterface = DasherInterface;}
//! Return the width of the screen
int GetWidth() const { return m_iWidth; }
//! Return the height of the screen
int GetHeight() const { return m_iHeight; }
//! Structure defining a point on the screen
typedef struct tagpoint { int x; int y; } point;
//! Set the Dasher font (ie, the screen font) to Name
//!
//! This is the font used to render letters in the main screen
virtual void SetFont(std::string Name)=0;
//! Set the Dasher font to Normal, Big or VBig
virtual void SetFontSize(Dasher::Opts::FontSize fontsize)=0;
//! Return the Dasher font size
virtual Dasher::Opts::FontSize GetFontSize()=0;
// DasherView asks for the width and height of the given symbol at a requested height,
// then it is able to sensibly specify the upper left corner in DrawText.
//! Set Width and Height to those of the character Character at size Size
virtual void TextSize(symbol Character, int* Width, int* Height, int Size) const=0;
//! Draw character Character of size Size positioned at x1 and y1
virtual void DrawText(symbol Character, int x1, int y1, int Size) const=0;
// Draw a filled rectangle - given position and color id
//! Draw a filled rectangle
//
//! Draw a coloured rectangle on the screen
//! \param x1 top left of rectangle (x coordinate)
//! \param y1 top left corner of rectangle (y coordinate)
//! \param x2 bottom right of rectangle (x coordinate)
//! \param y2 bottom right of rectangle (y coordinate)
//! \param Color the colour to be used (numeric)
//! \param ColorScheme Which colourscheme is to be used
virtual void DrawRectangle(int x1, int y1, int x2, int y2, int Color, Opts::ColorSchemes ColorScheme) const=0;
// Draw a line of fixed colour (usually black). Intended for static UI elements such as a cross-hair
//! Draw a line between each of the points in the array
//
//! \param Number the number of points in the array
virtual void Polyline(point* Points, int Number) const=0;
// Draw a filled polygon - given vertices and color id
// This is not (currently) used in standard Dasher. However, it could be very
// useful in the future. Please implement unless it will be very difficult,
// in which case make this function call Polyline.
//! Draw a filled polygon
//
//! \param Points array of points defining the edge of the polygon
//! \param Number number of points in the array
//! \param Color colour of the polygon (numeric)
//! \param Colorscheme Which colourscheme is to be used
virtual void DrawPolygon(point* Points, int Number, int Color, Opts::ColorSchemes ColorScheme) const=0;
// Signal the screen when a frame is started and finished
//! Signal that a frame is being started
virtual void Blank() const=0;
//! Signal that a frame is finished - the screen should be updated
virtual void Display()=0;
protected:
//! Width and height of the screen
const int m_iWidth, m_iHeight;
//! Pointer to a widget interface for communication with the core
CDasherWidgetInterface* m_DasherInterface;
};
#endif /* #ifndef __DasherScreen_h_ */
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