void BudgetStatusView::paintEvent(QPaintEvent *event)
{
QPainter p(this);
p.setPen(QPen(Qt::black, 2));
ServerBudgetGUIObj *temp;
bool first = true;
int prevBudget, prevTime, budget, time;
for(list<ServerBudgetGUIObj*>::iterator budgetIter = _budgetList.begin();
budgetIter != _budgetList.end(); budgetIter++)
{
temp = *budgetIter;
if(first){
prevBudget = temp->currentBudget();
prevTime = 0;
first = false;
}
budget = temp->currentBudget();
time = temp->time();
if(prevBudget < budget){//prevBudget < budget, replenishment event
p.drawLine(lineXPosStart + prevTime*tickLength, lineYPos - vertLineHeight*prevBudget,
lineXPosStart + time*tickLength , lineYPos- vertLineHeight*prevBudget);
p.drawLine(lineXPosStart + time*tickLength, lineYPos - vertLineHeight*prevBudget,
lineXPosStart + time*tickLength , lineYPos- vertLineHeight*budget);
}
else
p.drawLine(lineXPosStart + prevTime*tickLength, lineYPos - vertLineHeight*prevBudget,
lineXPosStart + time*tickLength , lineYPos- vertLineHeight*budget);
prevBudget = budget;
prevTime = time;
}
drawStructure("", nVertLines);
}
/*
Redraws window contents
*/
void glutWidget::render()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clears color and depth bits of framebuffer
//Convenience variables
float t = (float) ((int) (((float) clock()) * 50.0 / CLOCKS_PER_SEC) % 30) / 30.0;
int t2 = ((int) (((float) clock()) * 50.0 / CLOCKS_PER_SEC) % 240) / 30;
float t3 = (float) clock() * 5.0 / CLOCKS_PER_SEC;
//These are the control points for the bezier curves
GLfloat curves[8][4][3] =
{
{
{-8, 0, -8.5},
{-7, 0, -8.5},
{-5, 0, -8.5},
{-4, 0, -8.5}
},
{
{-4, 0, -8.5},
{-3.5, 0, -8.5},
{-3.5, 0, -8.5},
{-3.5, 0, -8}
},
{
{-3.5, 0, -8},
{-3.5, 0, -7},
{-3.5, 0, -5},
{-3.5, 0, -4}
},
{
{-3.5, 0, -4},
{-3.5, 0, -3.5},
{-3.5, 0, -3.5},
{-4, 0, -3.5}
},
{
{-4, 0, -3.5},
{-5, 0, -3.5},
{-7, 0, -3.5},
{-8, 0, -3.5}
},
{
{-8, 0, -3.5},
{-8.5, 0, -3.5},
{-8.5, 0, -3.5},
{-8.5, 0, -4}
},
{
{-8.5, 0, -4},
{-8.5, 0, -5},
{-8.5, 0, -7},
{-8.5, 0, -8}
},
{
{-8.5, 0, -8},
{-8.5, 0, -8.5},
{-8.5, 0, -8.5},
{-8, 0, -8.5}
}
};
//Manually evaluate the bezier curves
float s = 1 - t;
float AB[2] = {curves[t2][0][0]*s + curves[t2][1][0]*t, curves[t2][0][2]*s + curves[t2][1][2]*t};
float BC[2] = {curves[t2][1][0]*s + curves[t2][2][0]*t, curves[t2][1][2]*s + curves[t2][2][2]*t};
float CD[2] = {curves[t2][2][0]*s + curves[t2][3][0]*t, curves[t2][2][2]*s + curves[t2][3][2]*t};
float ABC[2] = {AB[0]*s + BC[0]*t, AB[1]*s + BC[1]*t};
float BCD[2] = {BC[0]*s + CD[0]*t, BC[1]*s + CD[1]*t};
float pos[2] = {ABC[0]*s + BCD[0]*t, ABC[1]*s + BCD[1]*t};
float slope = (ABC[1] - BCD[1]) / (ABC[0] - BCD[0]);
float theta = atan(slope);
//Rotation/translation matrix
float matrix[4][4] =
{
{cos(theta), 0, -sin(theta), 0},
{0, 1, 0, 0},
{sin(theta), 0, cos(theta), 0},
{pos[0], 0.01, pos[1], 1}
};
//Keep the texture pointing in the right direction throughout the loop
if((ABC[0] - BCD[0]) < 0)
{
matrix[0][2] = -(matrix[0][2]);
matrix[2][0] = -(matrix[2][0]);
}
else if((ABC[0] - BCD[0]) > 0)
{
matrix[0][0] = -(matrix[0][0]);
matrix[2][2] = -(matrix[2][2]);
}
//Draw streets
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, street_texture);
glUseProgram(m_program);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(0,1);
glNormal3f(0,1,0);
glVertex3f(-10,0,-10);
glTexCoord2f(0,0);
glNormal3f(0,1,0);
glVertex3f(-10,0,10);
glTexCoord2f(1,1);
glNormal3f(0,1,0);
glVertex3f(10,0,-10);
glTexCoord2f(1,0);
glNormal3f(0,1,0);
glVertex3f(10,0,10);
glEnd();
glUseProgram(0);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
//
//Draw cars
for (int i = 0; i < 9; i++) {
matrix[3][0] = pos[0] + ((i % 3) * 6);
matrix[3][2] = pos[1] + ((i / 3) * 6);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glMultMatrixf(matrix[0]);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, car_texture);
glUseProgram(m_program);
drawCar();
glUseProgram(0);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glPopMatrix();
if (i+1 == camera) {
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(matrix[3][0],0.5,matrix[3][2],sin(roty)+matrix[3][0],sin(rotx)+0.2,-cos(roty)+matrix[3][2],0,1,0); //Camera rotation/translation is done here
}
}
//
//Draw structures
for (int i = 0; i < 9; i++) {
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glTranslatef((i % 3) * 6, 0, (i / 3) * 6);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, structure_texture);
glUseProgram(m_program);
drawStructure();
glUseProgram(0);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glPopMatrix();
}
//
//Draw skybox
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, skybox_texture);
glUseProgram(m_program);
drawSkybox();
glUseProgram(0);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
//
//Draw walls
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, wall_texture);
glUseProgram(m_program);
drawWalls();
glUseProgram(0);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
//
if (!camera) {
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(cposx,0.25,cposz,sin(roty)+cposx,sin(rotx)+cposy,-cos(roty)+cposz,0,1,0); //Camera rotation/translation is done here
}
glutSwapBuffers(); //swaps front and back buffer for double buffering
}
