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Public Member Functions | Protected Attributes
StrokeDisplay Class Reference

Display text usins Stroke-es. More...

#include <TextDisplay.h>

Inheritance diagram for StrokeDisplay:
TextDisplay TextDisplay TimeDisplay TimeDisplay

List of all members.

Public Member Functions

 StrokeDisplay (int numOfColumns, int numOfRows, int fontSize, bool drawBackground, bool isCentered)
 ~StrokeDisplay ()
void SetFocus (bool focus)
 StrokeDisplay (int numOfColumns, int numOfRows, int fontSize, bool drawBackground, bool isCentered)
 ~StrokeDisplay ()
void SetFocus (bool focus)
Methods from TextDisplay
bool Display ()
 Display text (OPEN GL methods)
void Clear ()
 Clear all text.
bool Print (const char *msg)
 Add more text. '
' is accepted as well.
bool Display ()
 Display text (OPEN GL methods)
void Clear ()
 Clear all text.
bool Print (const char *msg)
 Add more text. '
' is accepted as well.

Protected Attributes

int mbBackground
int mbCentered
int mFontSize
int mCols
int mRows
int mColsPos
int mRowsPos
double mFontColor [3]
double mBgColor [4]
char ** mpText
 An array of lines (text)
double * mLinePadding
int * mLineWidth
Stroke * mpStroke

Detailed Description

Display text usins Stroke-es.

Definition at line 29 of file TextDisplay.h.

Constructor & Destructor Documentation

StrokeDisplay::StrokeDisplay ( int  numOfColumns,
int  numOfRows,
int  fontSize,
bool  drawBackground,
bool  isCentered 
)

Definition at line 14 of file TextDisplay.cpp.

References Clear(), mBgColor, mFontColor, mLinePadding, mLineWidth, mpText, and STROKEBG_TRANSP.

    : mCols(cols), mRows(rows)
    , mFontSize(fontSize),  mpStroke(0) 
    , mbBackground(bg), mbCentered(centered)
{
    memset(mBgColor, 0, sizeof(mBgColor) );
    mBgColor[3] = STROKEBG_TRANSP;
    memset(mFontColor, 0, sizeof(mFontColor) );
    mpText = new PCHAR[rows];
    mLineWidth = new int[rows];
    mLinePadding = new double[rows];

    for (int i=0; i<rows; i++)
    {
        mpText[i] = new char[cols+1];
    }
    Clear();
}
StrokeDisplay::~StrokeDisplay ( )

Definition at line 47 of file TextDisplay.cpp.

References mLinePadding, mLineWidth, and mpText.

{
    delete mpText;
    delete mLineWidth;
    delete mLinePadding;
}
StrokeDisplay::StrokeDisplay ( int  numOfColumns,
int  numOfRows,
int  fontSize,
bool  drawBackground,
bool  isCentered 
)
StrokeDisplay::~StrokeDisplay ( )

Member Function Documentation

void StrokeDisplay::Clear ( ) [virtual]

Clear all text.

Implements TextDisplay.

Definition at line 36 of file TextDisplay.cpp.

References mColsPos, mLinePadding, mLineWidth, mpText, mRows, and mRowsPos.

Referenced by StrokeDisplay().

{
    for (int i=0; i <mRows; i++)
    {
        *mpText[i] = '\0';
    }
    mColsPos = mRowsPos = 0;
    memset(mLinePadding, 0, sizeof(double) * mRows);
    memset(mLineWidth, 0, sizeof(int) * mRows);
}
void StrokeDisplay::Clear ( ) [virtual]

Clear all text.

Implements TextDisplay.

bool StrokeDisplay::Display ( ) [virtual]

Display text (OPEN GL methods)

Implements TextDisplay.

Definition at line 113 of file TextDisplay.cpp.

References Stroke::DrawString(), Stroke::FontWidth(), Stroke::Init(), mbBackground, mbCentered, mBgColor, mCols, mColsPos, mFontColor, mFontSize, mLinePadding, mLineWidth, mpStroke, mpText, mRows, and mRowsPos.

{
    // If there is no text, don't display anything
    if (mColsPos == 0 && mRowsPos == 0)
    {
        return true;
    }

    // create stroke on first draw
    if (!mpStroke)
    {
        mpStroke = new Stroke(mFontSize);
   
        if (mLineWidth[mRowsPos] > 0 && mLineWidth[mRowsPos] < mCols)
                mLinePadding[mRowsPos] = ( (mCols - mLineWidth[mRowsPos]) - 0.3) * mpStroke->FontWidth() / 2;
            else
                mLinePadding[mRowsPos] = 0.0;

        if (!mpStroke->Init() )
        {
            delete mpStroke;
            mpStroke = 0;
            return false;
        }

        for (int i=0; i<mRows; i++)
        {
            if (mLineWidth[i] > 0 && mLineWidth[i] < mCols)
                mLinePadding[i] = ( (mCols - mLineWidth[i]) - 0.3) * mpStroke->FontWidth() / 2;
            else
                mLinePadding[i] = 0.0;
        }
    }

    // draw background
    if (mbBackground)
    {
        double offset = 0.4;
  
        glEnable (GL_BLEND);
        glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glColor4f(0.2, 0.5, 0.65, mBgColor[3]);
        glBegin(GL_POLYGON);
        glVertex3f(0.0-2*offset, 0.0-2*offset, 0.0);
        glVertex3f(mCols * mpStroke->FontWidth() + 5 * offset, 0.0 - 2*offset, 0.0);
        glVertex3f( mCols * mpStroke->FontWidth() + 5 * offset, mRows * mFontSize * 1.5 - offset, 0.0);
        glVertex3f(0.0 - 2*offset, mRows * mFontSize * 1.5 - offset, 0.0);
        glEnd();
    }
    int rows = mRows;
    int curr_row = (mRowsPos + 1) % mRows;
    glColor3f(mFontColor[0], mFontColor[1], mFontColor[2]);
   
    glDisable (GL_BLEND);
  
    // draw stroke text 
    glTranslatef(0.0, (mRows - 1) * 1.5 * mFontSize, 0.0);

    while (rows)
    {
        if (mpText[curr_row] != '\0')
        {
            glPushMatrix();
            if (mbCentered)
            {
                glTranslatef(mLinePadding[curr_row], 0.0, 0.0);
            }

            mpStroke->DrawString(mpText[curr_row]);
            glPopMatrix();
            glTranslatef(0.0, -1.5 * mFontSize, 0.0);
        }    
        curr_row = (curr_row + 1) % mRows;
        rows--;
    }
    return true;
}
bool StrokeDisplay::Display ( ) [virtual]

Display text (OPEN GL methods)

Implements TextDisplay.

bool StrokeDisplay::Print ( const char *  msg) [virtual]

Add more text. '
' is accepted as well.

Implements TextDisplay.

Definition at line 54 of file TextDisplay.cpp.

References Stroke::FontWidth(), mCols, mColsPos, mLinePadding, mLineWidth, mpStroke, mpText, mRows, and mRowsPos.

Referenced by MenuDisplay::Add(), and CollisionMaster::Collision().

{
    char* pom = (char*)msg;

    while (*pom)
    {
        if (mColsPos == mCols || *pom == '\n')
        {
            mpText[mRowsPos][mColsPos] = '\0';
            if (*pom == '\n')
            {
                pom++;
            }
            mColsPos = 0;         
            // Calcualte padding for mRowsPos Row
      
            if (mpStroke)
            {
                if (mLineWidth[mRowsPos] > 0 && mLineWidth[mRowsPos] < mCols)
                    mLinePadding[mRowsPos] = ( (mCols - mLineWidth[mRowsPos]) - 0.3) * mpStroke->FontWidth() / 2;
                else
                    mLinePadding[mRowsPos] = 0.0;
            }

            mRowsPos = (mRowsPos + 1) % mRows;
            mLineWidth[mRowsPos] = 0;
        }    
        else
        {
            mpText[mRowsPos][mColsPos] = toupper(*pom);
            mColsPos++;
            pom++;
            mLineWidth[mRowsPos]++;
        }
    }

    mpText[mRowsPos][mColsPos] = '\0';
    // Calcualte padding for mRowsPos Row
    if (mpStroke)
    {
        if (mLineWidth[mRowsPos] > 0 && mLineWidth[mRowsPos] < mCols)
            mLinePadding[mRowsPos] = ( (mCols - mLineWidth[mRowsPos]) - 0.3) * mpStroke->FontWidth() / 2;
        else
            mLinePadding[mRowsPos] = 0.0;
    }
    
    return true;
}
bool StrokeDisplay::Print ( const char *  msg) [virtual]

Add more text. '
' is accepted as well.

Implements TextDisplay.

void StrokeDisplay::SetFocus ( bool  focus)

We will draw non-focused elements with different ransparency level.

Definition at line 105 of file TextDisplay.cpp.

References mBgColor, STROKEBG_FOCUS, and STROKEBG_TRANSP.

{
    if (focus)
        mBgColor[3] = STROKEBG_FOCUS;
    else
        mBgColor[3] = STROKEBG_TRANSP;
}
void StrokeDisplay::SetFocus ( bool  focus)

Member Data Documentation

int StrokeDisplay::mbBackground [protected]

Definition at line 52 of file TextDisplay.h.

Referenced by Display().

int StrokeDisplay::mbCentered [protected]

Definition at line 53 of file TextDisplay.h.

Referenced by Display().

double StrokeDisplay::mBgColor [protected]

Definition at line 60 of file TextDisplay.h.

Referenced by Display(), SetFocus(), and StrokeDisplay().

int StrokeDisplay::mCols [protected]

Definition at line 55 of file TextDisplay.h.

Referenced by Display(), and Print().

int StrokeDisplay::mColsPos [protected]

Definition at line 57 of file TextDisplay.h.

Referenced by Clear(), Display(), and Print().

double StrokeDisplay::mFontColor [protected]

Definition at line 59 of file TextDisplay.h.

Referenced by Display(), and StrokeDisplay().

int StrokeDisplay::mFontSize [protected]

Definition at line 54 of file TextDisplay.h.

Referenced by Display().

double * StrokeDisplay::mLinePadding [protected]

Definition at line 64 of file TextDisplay.h.

Referenced by Clear(), Display(), Print(), StrokeDisplay(), and ~StrokeDisplay().

int * StrokeDisplay::mLineWidth [protected]

Definition at line 65 of file TextDisplay.h.

Referenced by Clear(), Display(), Print(), StrokeDisplay(), and ~StrokeDisplay().

Stroke * StrokeDisplay::mpStroke [protected]

Definition at line 67 of file TextDisplay.h.

Referenced by Display(), and Print().

char ** StrokeDisplay::mpText [protected]

An array of lines (text)

Definition at line 63 of file TextDisplay.h.

Referenced by Clear(), Display(), Print(), StrokeDisplay(), and ~StrokeDisplay().

int StrokeDisplay::mRows [protected]

Definition at line 56 of file TextDisplay.h.

Referenced by Clear(), Display(), and Print().

int StrokeDisplay::mRowsPos [protected]

Definition at line 58 of file TextDisplay.h.

Referenced by Clear(), Display(), and Print().

The documentation for this class was generated from the following files:
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