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Draw arrows for the rotation overlay.

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This commit is contained in:
leo 2012-08-02 21:14:26 +00:00
parent 40e8fc4c28
commit 6ada90eaad
1 changed files with 37 additions and 5 deletions
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42
common/project.cpp
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@ -2119,6 +2119,7 @@ void Project::RenderOverlays(View* view)
const float OverlayMoveArrowCapRadius = 0.1f * OverlayScale;
const float OverlayRotateArrowStart = 1.0f * OverlayScale;
const float OverlayRotateArrowEnd = 1.5f * OverlayScale;
const float OverlayRotateArrowCenter = 1.2f * OverlayScale;
glDisable(GL_DEPTH_TEST);
@ -2241,11 +2242,42 @@ void Project::RenderOverlays(View* view)
break;
}
glBegin(GL_QUADS);
glVertex3f(0.0f, OverlayRotateArrowStart, OverlayRotateArrowStart);
glVertex3f(0.0f, OverlayRotateArrowEnd, OverlayRotateArrowStart);
glVertex3f(0.0f, OverlayRotateArrowEnd, OverlayRotateArrowEnd);
glVertex3f(0.0f, OverlayRotateArrowStart, OverlayRotateArrowEnd);
glBegin(GL_LINE_STRIP);
for (int j = 0; j < 9; j++)
{
const float Radius = OverlayRotateArrowEnd - OverlayMoveArrowCapRadius - OverlayRotateArrowCenter;
float x = cosf(LC_2PI / 4 * j / 8) * Radius;
float y = sinf(LC_2PI / 4 * j / 8) * Radius;
glVertex3f(0.0f, OverlayRotateArrowCenter + x, OverlayRotateArrowCenter + y);
}
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex3f(0.0f, OverlayRotateArrowEnd - OverlayMoveArrowCapRadius, OverlayRotateArrowStart);
for (int j = 0; j < 9; j++)
{
float x = cosf(LC_2PI * j / 8) * OverlayMoveArrowCapRadius;
float y = sinf(LC_2PI * j / 8) * OverlayMoveArrowCapRadius;
glVertex3f(x, OverlayRotateArrowEnd - OverlayMoveArrowCapRadius + y, OverlayRotateArrowCenter);
}
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex3f(0.0f, OverlayRotateArrowStart, OverlayRotateArrowEnd - OverlayMoveArrowCapRadius);
for (int j = 0; j < 9; j++)
{
float x = cosf(LC_2PI * j / 8) * OverlayMoveArrowCapRadius;
float y = sinf(LC_2PI * j / 8) * OverlayMoveArrowCapRadius;
glVertex3f(x, OverlayRotateArrowCenter, OverlayRotateArrowEnd - OverlayMoveArrowCapRadius + y);
}
glEnd();
}