#include <algorithm>#include "InterfaceConfig.h"#include "MenuRow.h"#include "MenuColumn.h"#include "Menu.h"#include "Util.h"  int lineHeight = 30;int menuHeight = 30;int yOffset = 8;    // under windows we have 8 vertical pixels offset. In 2D an object with y=8, the object is displayed at y=0                    // change the value in the other platforms (if required).  Menu::Menu(){    iCurrentColumn = -1;    xLeftMouseOver = 0;    xRightMouseOver = 0;    yTopMouseOver = 0;    yBottomMouseOver = 0;}  Menu::~Menu(){    columns.clear();} void Menu::mouseClickColumn(int iColumnIndex) {    if (iCurrentColumn == iColumnIndex) {        iCurrentColumn = -1;    } else {        iCurrentColumn = iColumnIndex;    }} void Menu::setMouseOver(int xLeft, int xRight, int yTop, int yBottom) {   xLeftMouseOver = xLeft;   xRightMouseOver = xRight;   yTopMouseOver = yTop;   yBottomMouseOver = yBottom;} void Menu::renderMouseOver() {    if (xLeftMouseOver != 0 || yTopMouseOver != 0 || xRightMouseOver != 0 ||& yBottomMouseOver != 0){        glColor4f(0,0,0,0.1);        glBegin(GL_QUADS); {            glVertex2f(xLeftMouseOver,  yOffset + yTopMouseOver);            glVertex2f(xRightMouseOver, yOffset + yTopMouseOver);            glVertex2f(xRightMouseOver,  yOffset + yBottomMouseOver);            glVertex2f(xLeftMouseOver ,  yOffset + yBottomMouseOver);        }        glEnd();    }} bool Menu::mouseClick(int x, int y) {    int xLeft = 0.5 * SPACE_BETWEEN_COLUMNS;    int xRight;    int columnWidth;    bool bRet = false;    for (unsigned int i = 0; i < columns.size(); ++i)    {        columnWidth = columns[i].getWidth();        xRight = xLeft + columnWidth + 1.5 * SPACE_BETWEEN_COLUMNS;        if (x > xLeft && x < xRight && y > 0 && y < menuHeight){            mouseClickColumn(i);            bRet = true;            break;        }        if (iCurrentColumn == i) {             bRet = columns[i].mouseClick(x, y, xLeft, menuHeight, lineHeight);             if (bRet) {                 iCurrentColumn = -1;            }        }        xLeft = xRight;    }    return bRet;} bool Menu::mouseOver(int x, int y) {    int xLeft = 0.5 * SPACE_BETWEEN_COLUMNS;    int xRight;    int columnWidth;    bool bRet = false;    for (unsigned int i = 0; i < columns.size(); ++i)    {        columnWidth = columns[i].getWidth();        xRight = xLeft + columnWidth +  SPACE_BETWEEN_COLUMNS;        if (x > xLeft && x < xRight && y > 0 && y < menuHeight){               printf("Mouse Over: %d %d", x, y);             setMouseOver(xLeft, xRight, 0, menuHeight);            bRet = true;            if (iCurrentColumn >= 0) {                columns[iCurrentColumn].setMouseOver(0, 0, 0, 0);                iCurrentColumn = i;            }            break;        } else if (iCurrentColumn == i) {             columns[i].mouseOver(x, y, xLeft, menuHeight, lineHeight);        }        xLeft = xRight;    }    if (!bRet) {        setMouseOver(0, 0, 0, 0);    }    return bRet;} void Menu::render(int screenwidth, int screenheight) {    float scale = 0.10;    int mono = 0;    glColor3f(0.9,0.9,0.9);    int width = screenwidth;    int height = screenheight;    glBegin(GL_QUADS); {        glVertex2f(0, yOffset);        glVertex2f(width, yOffset);        glVertex2f( width, menuHeight + yOffset);        glVertex2f(0 , menuHeight + yOffset);    }    glEnd();    int x = SPACE_BETWEEN_COLUMNS;    char * columnName;    int columnWidth;    for (unsigned int i = 0; i < columns.size(); ++i)    {        columnName = columns[i].getName();        columnWidth = columns[i].getWidth(scale, mono, x- 0.5 * SPACE_BETWEEN_COLUMNS);        drawtext(x,18 + yOffset, scale, 0, 1.0, mono, columnName, 0, 0, 0);        x += columnWidth + SPACE_BETWEEN_COLUMNS;        if (iCurrentColumn == i) {            columns[i].render(yOffset, menuHeight, lineHeight);        }    }    renderMouseOver(); }  MenuColumn* Menu::addColumn(char *columnName) {    MenuColumn  * pColumn;    pColumn = new MenuColumn(columnName);    columns.push_back(*pColumn);    delete pColumn;    return &columns[columns.size()-1];}