//----------------------------------------------------
bool guiQuad::selectPoint(float x, float y, float offsetX, float offsetY, float width, float height, float hitArea){
//make sure selected is -1 unless we really find a point
selected = -1;
if(width == 0 || height == 0 || x < offsetX || x > offsetX + width || y < offsetY || y > offsetY + height){
//then we are out of our possible quad area
//so we ignore :)
return false;
}
//lets get it in range x(0 - width) y(0 - height)
float px = x - offsetX;
float py = y - offsetY;
//now get in 0-1 range
px /= width;
py /= height;
hitArea /= width;
//we want to store the smallest distance found
//because in the case when two points are in the
//hit area we want to pick the closet
float storeDist = 9999999.0;
for(int i = 0; i < 4; i++){
float dx = floatAbs(px - srcZeroToOne[i].x);
float dy = floatAbs(py - srcZeroToOne[i].y);
float dist = sqrt(dx*dx + dy*dy);
if(dist > hitArea)continue;
if(dist < storeDist){
selected = i;
storeDist = dist;
}
}
if(selected != -1){
srcZeroToOne[selected].x = px;
srcZeroToOne[selected].y = py;
srcScaled[selected].x = px;
srcScaled[selected].y = py;
if(selected == 0)setCommonText("status: Quad - Top Left");
else
if(selected == 1)setCommonText("status: Quad - Top Right");
else
if(selected == 2)setCommonText("status: Quad - Bottom Right");
else
if(selected == 3)setCommonText("status: Quad - Bottom Left");
return true;
}
return false;
}
//-----------------------------------------------------
bool guiQuad::selectPoint(float x, float y, float offsetX, float offsetY, float width, float height, float hitArea){
//make sure selected is -1 unless we really find a point
selected = -1;
if(width == 0 || height == 0 || x < offsetX || x > offsetX + width || y < offsetY || y > offsetY + height){
//then we are out of our possible quad area
//so we ignore :)
return false;
}
//lets get it in range x(0 - width) y(0 - height)
float px = x - offsetX;
float py = y - offsetY;
//now get in 0-1 range
px /= width;
py /= height;
hitArea /= width;
//we want to store the smallest distance found
//because in the case when two points are in the
//hit area we want to pick the closet
float storeDist = 9999999.0;
for(int i = 0; i < 4; i++){
float dx = fabs(px - srcZeroToOne[i].x);
float dy = fabs(py - srcZeroToOne[i].y);
float dist = sqrt(dx*dx + dy*dy);
if(dist > hitArea)continue;
if(dist < storeDist){
selected = i;
storeDist = dist;
}
}
if(selected != -1){
getScaledQuadPoints(width, height);
if ((srcScaled[selected].x - srcScaled[oppVertex(selected)].x) != 0) {
diag_a = (srcScaled[selected].y - srcScaled[oppVertex(selected)].y) / (srcScaled[selected].x - srcScaled[oppVertex(selected)].x);
diag_b = srcScaled[selected].y - (diag_a * srcScaled[selected].x);
diag_v = false;
} else {
diag_v = true;
}
// side A
if (srcScaled[0].x - srcScaled[1].x != 0) {
sideA_m = (srcScaled[0].y - srcScaled[1].y) / (srcScaled[0].x - srcScaled[1].x);
cout << "sideA_m = " << sideA_m << endl;
sideA_b = srcScaled[0].y - (sideA_m * srcScaled[0].x);
cout << "sideA_b = " << sideA_b << endl;
sideA_v = -1;
} else {
sideA_m = 0;
sideA_b = 0;
sideA_v = srcScaled[0].x;
cout << "sideA is vertical" << endl;
cout << "sideA_v = " << sideA_v << endl;
}
// side B
if (srcScaled[1].x - srcScaled[2].x != 0) {
sideB_m = (srcScaled[1].y - srcScaled[2].y) / (srcScaled[1].x - srcScaled[2].x);
cout << "sideB_m = " << sideB_m << endl;
sideB_b = srcScaled[1].y - (sideB_m * srcScaled[1].x);
cout << "sideB_b = " << sideB_b << endl;
sideB_v = -1;
} else {
sideB_m = 0;
sideB_b = 0;
sideB_v = srcScaled[1].x;
cout << "sideB is vertical" << endl;
cout << "sideB_v = " << sideB_v << endl;
}
// side C
if (srcScaled[2].x - srcScaled[3].x != 0) {
sideC_m = (srcScaled[2].y - srcScaled[3].y) / (srcScaled[2].x - srcScaled[3].x);
cout << "sideC_m = " << sideC_m << endl;
sideC_b = srcScaled[2].y - (sideC_m * srcScaled[2].x);
cout << "sideC_b = " << sideC_b << endl;
sideC_v = -1;
} else {
sideC_m = 0;
sideC_b = 0;
sideC_v = srcScaled[2].x;
cout << "sideC is vertical" << endl;
cout << "sideC_v = " << sideC_v << endl;
}
// side D
if (srcScaled[3].x - srcScaled[0].x != 0) {
sideD_m = (srcScaled[3].y - srcScaled[0].y) / (srcScaled[3].x - srcScaled[0].x);
cout << "srcScaled[3].x = " << srcScaled[3].x << endl;
cout << "srcScaled[3].y = " << srcScaled[3].y << endl;
cout << "srcScaled[0].x = " << srcScaled[0].x << endl;
cout << "srcScaled[0].y = " << srcScaled[0].y << endl;
cout << "sideD_m = " << sideD_m << endl;
sideD_b = srcScaled[3].y - (sideD_m * srcScaled[3].x);
cout << "sideD_b = " << sideD_b << endl;
sideD_v = -1;
} else {
sideD_m = 0;
sideD_b = 0;
sideD_v = srcScaled[3].x;
cout << "sideD is vertical" << endl;
cout << "sideD_v = " << sideD_v << endl;
}
srcZeroToOne[selected].x = px;
srcZeroToOne[selected].y = py;
srcZeroToOne[selected].x = px;
srcZeroToOne[selected].y = py;
srcScaled[selected].x = px;
srcScaled[selected].y = py;
if(selected == 0)setCommonText("status: Quad - Top Left");
else
if(selected == 1)setCommonText("status: Quad - Top Right");
else
if(selected == 2)setCommonText("status: Quad - Bottom Right");
else
if(selected == 3)setCommonText("status: Quad - Bottom Left");
return true;
}
return false;
}
