Attributes and Behaviors of Primitives - Essentials of Interactive Computer Graphics - page 159

A: void CModel::SetObjectColor( const UWB _ Color& color) {
if (gotCircle == m _ CurrentObjectType) m _ Circle.SetColor(color);
else if (gotPoint == m _ CurrentObjectType)

m _ Point.SetColor(color);

.
B: void CModel::StartDefineGraphicsObject( float world _ x, float world _ y) {
if (gotCircle == m _ CurrentObjectType) {
m _ Circle.SetCenter(world _ x, world _ y);
m _ Circle.SetRadius(0);
} else if (gotPoint == m _ CurrentObjectType)
.

Source file. Model.cpp
file in the Model folder of the
D3D _ ObjectsAndAttributes
project.

void CModel::EndDefineGraphicsObject( float world _ x, float world _ y) {
if (gotCircle == m _ CurrentObjectType) {
.
} else if (gotPoint == m _ CurrentObjectType) {
.
C: void CModel::DrawModel() {
m _ Circle.Draw(&m _ DrawHelper);
m _ Line.Draw(&m _ DrawHelper);
.

Listing 7.6. Example implementation of CModel (Tutorial 7.1).

class CTutorialDlg : public CDialog {
A:

afx _ msg void OnTimer(UINT nIDEvent);
afx _ msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar * pScrollBar);
afx _ msg void OnBnClickedColorButton();

Source file.
CTutorialDlg.cpp file in
the Source Files folders of the
D3D _ ObjectsAndAttributes
project.

private :
.
// Control variables for GUI elements

UWBMFC _ SliderCtrlWithEcho m _ PointSizeSlider;
BOOL m _ bFillCircle, m _ Shading;

B:

CDrawAndMouseHandler m _ view; C:

};

Listing 7.7. The CTutorialDlg class (Tutorial 7.1).