mirror of
https://github.com/leozide/leocad
synced 2024-11-16 07:47:27 +01:00
404 lines
12 KiB
C++
404 lines
12 KiB
C++
#include "lc_global.h"
|
|
#include "lc_viewsphere.h"
|
|
#include "view.h"
|
|
#include "lc_previewwidget.h"
|
|
|
|
#include "lc_context.h"
|
|
#include "lc_stringcache.h"
|
|
#include "lc_application.h"
|
|
#include "image.h"
|
|
#include "lc_texture.h"
|
|
|
|
lcTexture* lcViewSphere::mTexture;
|
|
lcVertexBuffer lcViewSphere::mVertexBuffer;
|
|
lcIndexBuffer lcViewSphere::mIndexBuffer;
|
|
const float lcViewSphere::mRadius = 1.0f;
|
|
const float lcViewSphere::mHighlightRadius = 0.35f;
|
|
const int lcViewSphere::mSubdivisions = 7;
|
|
|
|
lcViewSphere::lcViewSphere(View* View)
|
|
: mWidget(View), mPreview(nullptr), mView(View), mIsPreview(false)
|
|
{
|
|
UpdateSettings();
|
|
}
|
|
|
|
lcViewSphere::lcViewSphere(lcPreviewWidget* Preview)
|
|
: mWidget(Preview), mPreview(Preview), mView(nullptr), mIsPreview(true)
|
|
{
|
|
UpdateSettings();
|
|
}
|
|
|
|
void lcViewSphere::UpdateSettings()
|
|
{
|
|
const lcPreferences& Preferences = lcGetPreferences();
|
|
|
|
if (!mIsPreview)
|
|
{
|
|
mSize = Preferences.mViewSphereSize;
|
|
mEnabled = Preferences.mViewSphereEnabled;
|
|
mLocation = Preferences.mViewSphereLocation;
|
|
}
|
|
else
|
|
{
|
|
mSize = Preferences.mPreviewViewSphereSize;
|
|
mEnabled = Preferences.mPreviewViewSphereEnabled;
|
|
mLocation = Preferences.mPreviewViewSphereLocation;
|
|
}
|
|
}
|
|
|
|
lcMatrix44 lcViewSphere::GetViewMatrix() const
|
|
{
|
|
lcMatrix44 ViewMatrix = mWidget->GetCamera()->mWorldView;
|
|
ViewMatrix.SetTranslation(lcVector3(0, 0, 0));
|
|
return ViewMatrix;
|
|
}
|
|
|
|
lcMatrix44 lcViewSphere::GetProjectionMatrix() const
|
|
{
|
|
return lcMatrix44Ortho(-mRadius * 1.25f, mRadius * 1.25f, -mRadius * 1.25f, mRadius * 1.25f, -mRadius * 1.25f, mRadius * 1.25f);
|
|
}
|
|
|
|
void lcViewSphere::CreateResources(lcContext* Context)
|
|
{
|
|
const int ImageSize = 128;
|
|
mTexture = new lcTexture();
|
|
|
|
const QString ViewNames[6] =
|
|
{
|
|
QCoreApplication::translate("ViewName", "Left"), QCoreApplication::translate("ViewName", "Right"), QCoreApplication::translate("ViewName", "Back"),
|
|
QCoreApplication::translate("ViewName", "Front"), QCoreApplication::translate("ViewName", "Top"), QCoreApplication::translate("ViewName", "Bottom")
|
|
};
|
|
|
|
const QTransform ViewTransforms[6] =
|
|
{
|
|
QTransform(0, 1, 1, 0, 0, 0), QTransform(0, -1, -1, 0, ImageSize, ImageSize), QTransform(-1, 0, 0, 1, ImageSize, 0),
|
|
QTransform(1, 0, 0, -1, 0, ImageSize), QTransform(1, 0, 0, -1, 0, ImageSize), QTransform(-1, 0, 0, 1, ImageSize, 0)
|
|
};
|
|
|
|
QImage PainterImage(ImageSize, ImageSize, QImage::Format_ARGB32);
|
|
QPainter Painter;
|
|
QFont Font("Helvetica", 20);
|
|
std::vector<Image> Images;
|
|
|
|
for (int ViewIdx = 0; ViewIdx < 6; ViewIdx++)
|
|
{
|
|
Image TextureImage;
|
|
TextureImage.Allocate(ImageSize, ImageSize, LC_PIXEL_FORMAT_A8);
|
|
|
|
Painter.begin(&PainterImage);
|
|
Painter.fillRect(0, 0, PainterImage.width(), PainterImage.height(), QColor(0, 0, 0));
|
|
Painter.setBrush(QColor(255, 255, 255));
|
|
Painter.setPen(QColor(255, 255, 255));
|
|
Painter.setFont(Font);
|
|
Painter.setTransform(ViewTransforms[ViewIdx]);
|
|
Painter.drawText(0, 0, PainterImage.width(), PainterImage.height(), Qt::AlignCenter, ViewNames[ViewIdx]);
|
|
Painter.end();
|
|
|
|
for (int y = 0; y < ImageSize; y++)
|
|
{
|
|
unsigned char* Dest = TextureImage.mData + (ImageSize - y - 1) * TextureImage.mWidth;
|
|
|
|
for (int x = 0; x < ImageSize; x++)
|
|
*Dest++ = qRed(PainterImage.pixel(x, y));
|
|
}
|
|
|
|
Images.emplace_back(std::move(TextureImage));
|
|
}
|
|
|
|
mTexture->SetImage(std::move(Images), LC_TEXTURE_CUBEMAP | LC_TEXTURE_LINEAR);
|
|
|
|
lcVector3 Verts[(mSubdivisions + 1) * (mSubdivisions + 1) * 6];
|
|
GLushort Indices[mSubdivisions * mSubdivisions * 6 * 6];
|
|
|
|
lcMatrix44 Transforms[6] =
|
|
{
|
|
lcMatrix44(lcVector4(0.0f, 1.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(1.0f, 0.0f, 0.0f, 0.0f), lcVector4(1.0f, 0.0f, 0.0f, 1.0f)),
|
|
lcMatrix44(lcVector4(0.0f, -1.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(1.0f, 0.0f, 0.0f, 0.0f), lcVector4(-1.0f, 0.0f, 0.0f, 1.0f)),
|
|
lcMatrix44(lcVector4(-1.0f, 0.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(0.0f, 1.0f, 0.0f, 0.0f), lcVector4(0.0f, 1.0f, 0.0f, 1.0f)),
|
|
lcMatrix44(lcVector4(1.0f, 0.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(0.0f, 1.0f, 0.0f, 0.0f), lcVector4(0.0f, -1.0f, 0.0f, 1.0f)),
|
|
lcMatrix44(lcVector4(1.0f, 0.0f, 0.0f, 0.0f), lcVector4(0.0f, 1.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 1.0f)),
|
|
lcMatrix44(lcVector4(1.0f, 0.0f, 0.0f, 0.0f), lcVector4(0.0f, -1.0f, 0.0f, 0.0f), lcVector4(0.0f, 0.0f, 1.0f, 0.0f), lcVector4(0.0f, 0.0f, -1.0f, 1.0f)),
|
|
};
|
|
|
|
const float Step = 2.0f / mSubdivisions;
|
|
lcVector3* CurVert = Verts;
|
|
|
|
for (int FaceIdx = 0; FaceIdx < 6; FaceIdx++)
|
|
{
|
|
for (int y = 0; y <= mSubdivisions; y++)
|
|
{
|
|
for (int x = 0; x <= mSubdivisions; x++)
|
|
{
|
|
lcVector3 Vert = lcMul31(lcVector3(Step * x - 1.0f, Step * y - 1.0f, 0.0f), Transforms[FaceIdx]);
|
|
lcVector3 Vert2 = Vert * Vert;
|
|
|
|
*CurVert++ = lcVector3(Vert.x * sqrt(1.0 - 0.5 * (Vert2.y + Vert2.z) + Vert2.y * Vert2.z / 3.0),
|
|
Vert.y * sqrt(1.0 - 0.5 * (Vert2.z + Vert2.x) + Vert2.z * Vert2.x / 3.0),
|
|
Vert.z * sqrt(1.0 - 0.5 * (Vert2.x + Vert2.y) + Vert2.x * Vert2.y / 3.0)
|
|
) * mRadius;
|
|
}
|
|
}
|
|
}
|
|
|
|
GLushort* CurIndex = Indices;
|
|
|
|
for (int FaceIdx = 0; FaceIdx < 6; FaceIdx++)
|
|
{
|
|
const int FaceBase = FaceIdx * (mSubdivisions + 1) * (mSubdivisions + 1);
|
|
|
|
for (int y = 0; y < mSubdivisions; y++)
|
|
{
|
|
int RowBase = FaceBase + (mSubdivisions + 1) * y;
|
|
|
|
for (int x = 0; x < mSubdivisions; x++)
|
|
{
|
|
*CurIndex++ = RowBase + x;
|
|
*CurIndex++ = RowBase + x + 1;
|
|
*CurIndex++ = RowBase + x + (mSubdivisions + 1);
|
|
|
|
*CurIndex++ = RowBase + x + 1;
|
|
*CurIndex++ = RowBase + x + 1 + (mSubdivisions + 1);
|
|
*CurIndex++ = RowBase + x + (mSubdivisions + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
mVertexBuffer = Context->CreateVertexBuffer(sizeof(Verts), Verts);
|
|
mIndexBuffer = Context->CreateIndexBuffer(sizeof(Indices), Indices);
|
|
}
|
|
|
|
void lcViewSphere::DestroyResources(lcContext* Context)
|
|
{
|
|
delete mTexture;
|
|
mTexture = nullptr;
|
|
Context->DestroyVertexBuffer(mVertexBuffer);
|
|
Context->DestroyIndexBuffer(mIndexBuffer);
|
|
}
|
|
|
|
void lcViewSphere::Draw()
|
|
{
|
|
UpdateSettings();
|
|
|
|
if (!mSize || !mEnabled)
|
|
return;
|
|
|
|
lcContext* Context = mWidget->mContext;
|
|
const int Width = mWidget->GetWidth();
|
|
const int Height = mWidget->GetHeight();
|
|
const int ViewportSize = mSize;
|
|
const int Left = (mLocation == lcViewSphereLocation::BottomLeft || mLocation == lcViewSphereLocation::TopLeft) ? 0 : Width - ViewportSize;
|
|
const int Bottom = (mLocation == lcViewSphereLocation::BottomLeft || mLocation == lcViewSphereLocation::BottomRight) ? 0 : Height - ViewportSize;
|
|
Context->SetViewport(Left, Bottom, ViewportSize, ViewportSize);
|
|
|
|
glDepthFunc(GL_ALWAYS);
|
|
glEnable(GL_CULL_FACE);
|
|
|
|
Context->SetVertexBuffer(mVertexBuffer);
|
|
Context->SetVertexFormatPosition(3);
|
|
Context->SetIndexBuffer(mIndexBuffer);
|
|
|
|
Context->SetMaterial(lcMaterialType::UnlitColor);
|
|
Context->SetColor(lcVector4(0.0f, 0.0f, 0.0f, 1.0f));
|
|
|
|
float Scale = 1.005f + 2.0f / (float)ViewportSize;
|
|
Context->SetWorldMatrix(lcMatrix44Scale(lcVector3(Scale, Scale, Scale)));
|
|
Context->SetViewMatrix(GetViewMatrix());
|
|
Context->SetProjectionMatrix(GetProjectionMatrix());
|
|
|
|
Context->DrawIndexedPrimitives(GL_TRIANGLES, mSubdivisions * mSubdivisions * 6 * 6, GL_UNSIGNED_SHORT, 0);
|
|
|
|
Context->SetMaterial(lcMaterialType::UnlitViewSphere);
|
|
Context->BindTextureCubeMap(mTexture->mTexture);
|
|
|
|
Context->SetWorldMatrix(lcMatrix44Identity());
|
|
Context->SetViewMatrix(GetViewMatrix());
|
|
Context->SetProjectionMatrix(GetProjectionMatrix());
|
|
|
|
lcVector4 HighlightPosition(0.0f, 0.0f, 0.0f, 0.0f);
|
|
|
|
if (mIntersectionFlags.any())
|
|
{
|
|
for (int AxisIdx = 0; AxisIdx < 3; AxisIdx++)
|
|
{
|
|
if (mIntersectionFlags.test(2 * AxisIdx))
|
|
HighlightPosition[AxisIdx] = 1.0f;
|
|
else if (mIntersectionFlags.test(2 * AxisIdx + 1))
|
|
HighlightPosition[AxisIdx] = -1.0f;
|
|
}
|
|
|
|
HighlightPosition = lcVector4(lcNormalize(lcVector3(HighlightPosition)), mHighlightRadius);
|
|
}
|
|
|
|
const lcPreferences& Preferences = lcGetPreferences();
|
|
const lcVector4 TextColor = lcVector4FromColor(Preferences.mViewSphereTextColor);
|
|
const lcVector4 BackgroundColor = lcVector4FromColor(Preferences.mViewSphereColor);
|
|
const lcVector4 HighlightColor = lcVector4FromColor(Preferences.mViewSphereHighlightColor);
|
|
|
|
Context->SetHighlightParams(HighlightPosition, TextColor, BackgroundColor, HighlightColor);
|
|
Context->DrawIndexedPrimitives(GL_TRIANGLES, mSubdivisions * mSubdivisions * 6 * 6, GL_UNSIGNED_SHORT, 0);
|
|
|
|
glDisable(GL_CULL_FACE);
|
|
glDepthFunc(GL_LEQUAL);
|
|
|
|
Context->SetViewport(0, 0, Width, Height);
|
|
}
|
|
|
|
bool lcViewSphere::OnLeftButtonDown()
|
|
{
|
|
if (!mSize || !mEnabled)
|
|
return false;
|
|
|
|
mIntersectionFlags = GetIntersectionFlags(mIntersection);
|
|
|
|
if (!mIntersectionFlags.any())
|
|
return false;
|
|
|
|
mMouseDownX = mWidget->GetMouseX();
|
|
mMouseDownY = mWidget->GetMouseY();
|
|
mMouseDown = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool lcViewSphere::OnLeftButtonUp()
|
|
{
|
|
if (!mSize || !mEnabled)
|
|
return false;
|
|
|
|
if (!mMouseDown)
|
|
return false;
|
|
|
|
mMouseDown = false;
|
|
|
|
if (!mIntersectionFlags.any())
|
|
return false;
|
|
|
|
lcVector3 Position(0.0f, 0.0f, 0.0f);
|
|
|
|
for (int AxisIdx = 0; AxisIdx < 3; AxisIdx++)
|
|
{
|
|
if (mIntersectionFlags.test(AxisIdx * 2))
|
|
Position[AxisIdx] = 1250.0f;
|
|
else if (mIntersectionFlags.test(AxisIdx * 2 + 1))
|
|
Position[AxisIdx] = -1250.0f;
|
|
}
|
|
|
|
mWidget->SetViewpoint(Position);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool lcViewSphere::OnMouseMove()
|
|
{
|
|
if (!mSize || !mEnabled)
|
|
return false;
|
|
|
|
if (IsDragging())
|
|
{
|
|
mIntersectionFlags.reset();
|
|
mIsPreview ? mPreview->StartOrbitTracking() : mView->StartOrbitTracking();
|
|
return true;
|
|
}
|
|
|
|
if (mWidget->IsTracking())
|
|
return false;
|
|
|
|
std::bitset<6> IntersectionFlags = GetIntersectionFlags(mIntersection);
|
|
|
|
if (IntersectionFlags != mIntersectionFlags)
|
|
{
|
|
mIntersectionFlags = IntersectionFlags;
|
|
mWidget->Redraw();
|
|
}
|
|
|
|
return mIntersectionFlags.any();
|
|
}
|
|
|
|
bool lcViewSphere::IsDragging() const
|
|
{
|
|
int InputStateX = mWidget->GetMouseX();
|
|
int InputStateY = mWidget->GetMouseY();
|
|
return mMouseDown && (qAbs(mMouseDownX - InputStateX) > 3 || qAbs(mMouseDownY - InputStateY) > 3);
|
|
}
|
|
|
|
std::bitset<6> lcViewSphere::GetIntersectionFlags(lcVector3& Intersection) const
|
|
{
|
|
const int Width = mWidget->GetWidth();
|
|
const int Height = mWidget->GetHeight();
|
|
const int ViewportSize = mSize;
|
|
const int Left = (mLocation == lcViewSphereLocation::BottomLeft || mLocation == lcViewSphereLocation::TopLeft) ? 0 : Width - ViewportSize;
|
|
const int Bottom = (mLocation == lcViewSphereLocation::BottomLeft || mLocation == lcViewSphereLocation::BottomRight) ? 0 : Height - ViewportSize;
|
|
const int x = mWidget->GetMouseX() - Left;
|
|
const int y = mWidget->GetMouseY() - Bottom;
|
|
std::bitset<6> IntersectionFlags;
|
|
|
|
if (x < 0 || x > Width || y < 0 || y > Height)
|
|
return IntersectionFlags;
|
|
|
|
lcVector3 StartEnd[2] = { lcVector3(x, y, 0), lcVector3(x, y, 1) };
|
|
const int Viewport[4] = { 0, 0, ViewportSize, ViewportSize };
|
|
|
|
lcUnprojectPoints(StartEnd, 2, GetViewMatrix(), GetProjectionMatrix(), Viewport);
|
|
|
|
float Distance;
|
|
if (lcSphereRayMinIntersectDistance(lcVector3(0.0f, 0.0f, 0.0f), mRadius, StartEnd[0], StartEnd[1], &Distance))
|
|
{
|
|
Intersection = (StartEnd[0] + (StartEnd[1] - StartEnd[0]) * Distance) / mRadius;
|
|
|
|
auto CheckIntersection = [&]()
|
|
{
|
|
for (int Axis1Idx = 0; Axis1Idx < 6; Axis1Idx++)
|
|
{
|
|
lcVector3 Point1(0.0f, 0.0f, 0.0f);
|
|
|
|
Point1[Axis1Idx / 2] = Axis1Idx % 2 ? -1.0f : 1.0f;
|
|
|
|
if (lcLengthSquared(Point1 - Intersection) < mHighlightRadius * mHighlightRadius)
|
|
{
|
|
IntersectionFlags.set(Axis1Idx);
|
|
return;
|
|
}
|
|
|
|
for (int Axis2Idx = 0; Axis2Idx < 6; Axis2Idx++)
|
|
{
|
|
if (Axis1Idx / 2 == Axis2Idx / 2)
|
|
continue;
|
|
|
|
lcVector3 Point2(0.0f, 0.0f, 0.0f);
|
|
Point2[Axis1Idx / 2] = Axis1Idx % 2 ? -0.70710678118f : 0.70710678118f;
|
|
Point2[Axis2Idx / 2] = Axis2Idx % 2 ? -0.70710678118f : 0.70710678118f;
|
|
|
|
if (lcLengthSquared(Point2 - Intersection) < mHighlightRadius * mHighlightRadius)
|
|
{
|
|
IntersectionFlags.set(Axis1Idx);
|
|
IntersectionFlags.set(Axis2Idx);
|
|
return;
|
|
}
|
|
|
|
for (int Axis3Idx = 0; Axis3Idx < 6; Axis3Idx++)
|
|
{
|
|
if (Axis1Idx / 2 == Axis3Idx / 2 || Axis2Idx / 2 == Axis3Idx / 2)
|
|
continue;
|
|
|
|
lcVector3 Point3(0.0f, 0.0f, 0.0f);
|
|
Point3[Axis1Idx / 2] = Axis1Idx % 2 ? -0.57735026919f : 0.57735026919f;
|
|
Point3[Axis2Idx / 2] = Axis2Idx % 2 ? -0.57735026919f : 0.57735026919f;
|
|
Point3[Axis3Idx / 2] = Axis3Idx % 2 ? -0.57735026919f : 0.57735026919f;
|
|
|
|
if (lcLengthSquared(Point3 - Intersection) < mHighlightRadius * mHighlightRadius)
|
|
{
|
|
IntersectionFlags.set(Axis1Idx);
|
|
IntersectionFlags.set(Axis2Idx);
|
|
IntersectionFlags.set(Axis3Idx);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
CheckIntersection();
|
|
}
|
|
|
|
return IntersectionFlags;
|
|
}
|