STColor4ub interpolatedColor(STPoint2 point, STImage *image)
{
point.x = fmax(0, fmin(point.x, image->GetWidth()-1));
point.y = fmax(0, fmin(point.y, image->GetHeight()-1));
if (point.x == floor(point.x) && point.y == floor(point.y))
return image->GetPixel(point.x, point.y);
STPoint2 point1 = STPoint2(floor(point.x), floor(point.y));
STPoint2 point2 = STPoint2(floor(point.x), ceil(point.y));
STPoint2 point3 = STPoint2(ceil(point.x), ceil(point.y));
STPoint2 point4 = STPoint2(ceil(point.x), floor(point.y));
float weight1 = calculateColorWeight(point, point3);
float weight2 = calculateColorWeight(point, point4);
float weight3 = calculateColorWeight(point, point1);
float weight4 = calculateColorWeight(point, point2);
STColor4f color1 = STColor4f(image->GetPixel(point1.x, point1.y)) * weight1;
STColor4f color2 = STColor4f(image->GetPixel(point2.x, point2.y)) * weight2;
STColor4f color3 = STColor4f(image->GetPixel(point3.x, point3.y)) * weight3;
STColor4f color4 = STColor4f(image->GetPixel(point4.x, point4.y)) * weight4;
STColor4f colorTotal = color1 + color2 + color3 + color4;
// colorTotal.a = 1;
return STColor4ub(colorTotal);
}
// position: (x,y), relative midi note: mapped_midi_num, speed s, max_connection_time: t
Note::Note(float x, float y, float z, int mapped_midi_num, float s, int t)
{
color = STColor4f((float)rand()/RAND_MAX,(float)rand()/RAND_MAX,(float)rand()/RAND_MAX,1.0);
centerPosition = STPoint3(x,y,z);
printf("centerPosition.x = %f, centerPosition.y = %f\n", centerPosition.x, centerPosition.y);
radius = .2;
width_max = (10 * radius) / .2;
excitement = 0.0;
speed = s;
max_connection_time = t;
mapped_midi = mapped_midi_num;
Spelling my_spell = SpellNote(mapped_midi_num);
note_space = my_spell.staff_offset;
accidental = my_spell.accidental;
max_connections = 50;
connection_list.resize(max_connections);
rel_space = note_space;
// for notes with ledger lines
if (note_space > 5) {
rel_space = 4 + (note_space%2);
}
if (note_space < -5) {
rel_space = -4 + (note_space%2);
}
}
/**
* Compute a linear blend of the pixel colors in two provided images according
* to a parameter t.
*/
STImage *BlendImages(STImage *image1, STImage *image2, float t)
{
int width = image1->GetWidth();
int height = image1->GetHeight();
STImage *result = new STImage(width, height, STColor4ub(255,255,255,255));
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
STColor4f pixel1 = STColor4f(image1->GetPixel(x, y));
STColor4f pixel2 = STColor4f(image2->GetPixel(x, y));
STColor4f newPixel = pixel1*(1-t) + pixel2*t;
result->SetPixel(x, y, STColor4ub(newPixel));
}
}
return result;
}
//
// Display the label to the current OpenGL context.
//
void UILabel::Display()
{
/** CS 148 TODO:
*
* You must implement the display logic for your label widget.
* Look at the STFont class for ideas of how to do this.
*
* You should render your label based on the rectangle
* of the widget, but you do not need to "cut off" any
* text that extends outside this rectangle.
*/
glPushMatrix();
glTranslatef(GetRectangle().pMin.x, GetRectangle().pMin.y - mFont->GetDescender(), 0);
mFont->DrawString(mText, STColor4f(0, 1));
glPopMatrix();
}
/* Component-wise log. Applies to color components only. */
STColor4f STColor4f::Log() const
{
STColor3f rgb(*this);
return STColor4f(rgb.Log(), a);
}
/* Component-wise exponential. Applies to color components only. */
STColor4f STColor4f::Exp() const
{
STColor3f rgb(*this);
return STColor4f(rgb.Exp(), a);
}
