//----------------------------------------------------------------------------
bool MapTextureToQuad::OnMouseClick (int button, int state, int x, int y,
unsigned int)
{
if (button != MOUSE_LEFT_BUTTON)
{
return false;
}
if (state == MOUSE_DOWN)
{
mMouseDown = true;
SelectVertex(Vector2f((float)x, (float)y));
return true;
}
if (state == MOUSE_UP)
{
mMouseDown = false;
if (mSelected >= 0
&& 0 <= x && x < GetWidth()
&& 0 <= y && y < GetHeight())
{
UpdateQuadrilateral(Vector2f((float)x, (float)y));
}
return true;
}
return false;
}
//----------------------------------------------------------------------------
bool QuadraticFreeForm2D::OnMouseClick (int button, int state, int x, int y,
unsigned int)
{
if (button != MOUSE_LEFT_BUTTON)
{
return false;
}
// Handle the flip in y that is used for drawing.
y = mSize - 1 - y;
if (state == MOUSE_DOWN)
{
mMouseDown = true;
SelectVertex(x, y);
return true;
}
if (state == MOUSE_UP)
{
mMouseDown = false;
if (mRow >= 0 && mCol >= 0
&& 0 <= x && x < GetWidth() && 0 <= y && y < GetHeight())
{
mCtrlX[mRow][mCol] = x;
mCtrlY[mRow][mCol] = y;
mCtrl[mRow][mCol].X() = ScreenToControl(x);
mCtrl[mRow][mCol].Y() = ScreenToControl(y);
OnDisplay();
}
return true;
}
return false;
}
void SelectVertexByRay (vec3_t org, vec3_t dir)
{
int i, besti;
float d, bestd;
vec3_t temp;
// find the point closest to the ray
besti = -1;
bestd = 8;
for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
{
VectorSubtract (g_qeglobals.d_points[i], org, temp);
d = DotProduct (temp, dir);
VectorMA (org, d, dir, temp);
VectorSubtract (g_qeglobals.d_points[i], temp, temp);
d = VectorLength (temp);
if (d < bestd)
{
bestd = d;
besti = i;
}
}
if (besti == -1)
{
Sys_Printf ("Click didn't hit a vertex\n");
return;
}
Sys_Printf ("hit vertex\n");
SelectVertex (besti);
}
//
// This file contains the C++ code from Program 16.9 of
// "Data Structures and Algorithms
// with Object-Oriented Design Patterns in C++"
// by Bruno R. Preiss.
//
// Copyright (c) 1998 by Bruno R. Preiss, P.Eng. All rights reserved.
//
// http://www.pads.uwaterloo.ca/Bruno.Preiss/books/opus4/programs/pgm16_09.cpp
//
void Digraph::TopologicalOrderTraversal (Visitor& visitor) const
{
Array<unsigned int> inDegree (numberOfVertices);
for (Vertex::Number v = 0; v < numberOfVertices; ++v)
inDegree [v] = 0;
Iterator& p = Edges ();
while (!p.IsDone ()) {
Edge& edge = dynamic_cast<Edge&> (*p);
++inDegree [edge.V1 ()];
++p;
}
delete &p;
Queue& queue = *new QueueAsLinkedList ();
queue.RescindOwnership ();
for (Vertex::Number v = 0; v < numberOfVertices; ++v)
if (inDegree [v] == 0)
queue.Enqueue (SelectVertex (v));
while (!queue.IsEmpty () && !visitor.IsDone ())
{
Vertex& vertex =
dynamic_cast<Vertex&> (queue.Dequeue ());
visitor.Visit (vertex);
Iterator& q = EmanatingEdges (vertex);
while (!q.IsDone ()) {
Edge& edge = dynamic_cast<Edge&> (*q);
Vertex& to = edge.V1 ();
if (--inDegree [to] == 0)
queue.Enqueue (to);
++q;
}
delete &q;
}
delete &queue;
}
//----------------------------------------------------------------------------
void MapTextureToQuad::OnMouseClick (int iButton, int iState, int iX,
int iY, unsigned int)
{
if ( iButton != MOUSE_LEFT_BUTTON )
return;
if ( iState == MOUSE_DOWN )
{
m_bMouseDown = true;
SelectVertex(Vector2f((float)iX,(float)iY));
}
else if ( iState == MOUSE_UP )
{
m_bMouseDown = false;
if ( m_iSelected >= 0
&& 0 <= iX && iX < GetWidth()
&& 0 <= iY && iY < GetHeight() )
{
UpdateQuadrilateral(Vector2f((float)iX,(float)iY));
}
}
}
