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rbdlsim/3rdparty/ImGuizmo/vcpkg-example/main.cpp

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#include "imgui.h"
#define IMGUI_DEFINE_MATH_OPERATORS
#include "imgui_internal.h"
#define IMAPP_IMPL
#include "ImApp.h"
#include "ImGuizmo.h"
#include "ImSequencer.h"
#include "ImZoomSlider.h"
#include "ImCurveEdit.h"
#include "GraphEditor.h"
#include <math.h>
#include <vector>
#include <algorithm>
bool useWindow = true;
int gizmoCount = 1;
float camDistance = 8.f;
static ImGuizmo::OPERATION mCurrentGizmoOperation(ImGuizmo::TRANSLATE);
float objectMatrix[4][16] = {
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
0.f, 0.f, 0.f, 1.f },
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
2.f, 0.f, 0.f, 1.f },
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
2.f, 0.f, 2.f, 1.f },
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
0.f, 0.f, 2.f, 1.f }
};
static const float identityMatrix[16] =
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
0.f, 0.f, 0.f, 1.f };
void Frustum(float left, float right, float bottom, float top, float znear, float zfar, float* m16)
{
float temp, temp2, temp3, temp4;
temp = 2.0f * znear;
temp2 = right - left;
temp3 = top - bottom;
temp4 = zfar - znear;
m16[0] = temp / temp2;
m16[1] = 0.0;
m16[2] = 0.0;
m16[3] = 0.0;
m16[4] = 0.0;
m16[5] = temp / temp3;
m16[6] = 0.0;
m16[7] = 0.0;
m16[8] = (right + left) / temp2;
m16[9] = (top + bottom) / temp3;
m16[10] = (-zfar - znear) / temp4;
m16[11] = -1.0f;
m16[12] = 0.0;
m16[13] = 0.0;
m16[14] = (-temp * zfar) / temp4;
m16[15] = 0.0;
}
void Perspective(float fovyInDegrees, float aspectRatio, float znear, float zfar, float* m16)
{
float ymax, xmax;
ymax = znear * tanf(fovyInDegrees * 3.141592f / 180.0f);
xmax = ymax * aspectRatio;
Frustum(-xmax, xmax, -ymax, ymax, znear, zfar, m16);
}
void Cross(const float* a, const float* b, float* r)
{
r[0] = a[1] * b[2] - a[2] * b[1];
r[1] = a[2] * b[0] - a[0] * b[2];
r[2] = a[0] * b[1] - a[1] * b[0];
}
float Dot(const float* a, const float* b)
{
return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
}
void Normalize(const float* a, float* r)
{
float il = 1.f / (sqrtf(Dot(a, a)) + FLT_EPSILON);
r[0] = a[0] * il;
r[1] = a[1] * il;
r[2] = a[2] * il;
}
void LookAt(const float* eye, const float* at, const float* up, float* m16)
{
float X[3], Y[3], Z[3], tmp[3];
tmp[0] = eye[0] - at[0];
tmp[1] = eye[1] - at[1];
tmp[2] = eye[2] - at[2];
Normalize(tmp, Z);
Normalize(up, Y);
Cross(Y, Z, tmp);
Normalize(tmp, X);
Cross(Z, X, tmp);
Normalize(tmp, Y);
m16[0] = X[0];
m16[1] = Y[0];
m16[2] = Z[0];
m16[3] = 0.0f;
m16[4] = X[1];
m16[5] = Y[1];
m16[6] = Z[1];
m16[7] = 0.0f;
m16[8] = X[2];
m16[9] = Y[2];
m16[10] = Z[2];
m16[11] = 0.0f;
m16[12] = -Dot(X, eye);
m16[13] = -Dot(Y, eye);
m16[14] = -Dot(Z, eye);
m16[15] = 1.0f;
}
void OrthoGraphic(const float l, float r, float b, const float t, float zn, const float zf, float* m16)
{
m16[0] = 2 / (r - l);
m16[1] = 0.0f;
m16[2] = 0.0f;
m16[3] = 0.0f;
m16[4] = 0.0f;
m16[5] = 2 / (t - b);
m16[6] = 0.0f;
m16[7] = 0.0f;
m16[8] = 0.0f;
m16[9] = 0.0f;
m16[10] = 1.0f / (zf - zn);
m16[11] = 0.0f;
m16[12] = (l + r) / (l - r);
m16[13] = (t + b) / (b - t);
m16[14] = zn / (zn - zf);
m16[15] = 1.0f;
}
inline void rotationY(const float angle, float* m16)
{
float c = cosf(angle);
float s = sinf(angle);
m16[0] = c;
m16[1] = 0.0f;
m16[2] = -s;
m16[3] = 0.0f;
m16[4] = 0.0f;
m16[5] = 1.f;
m16[6] = 0.0f;
m16[7] = 0.0f;
m16[8] = s;
m16[9] = 0.0f;
m16[10] = c;
m16[11] = 0.0f;
m16[12] = 0.f;
m16[13] = 0.f;
m16[14] = 0.f;
m16[15] = 1.0f;
}
void EditTransform(float* cameraView, float* cameraProjection, float* matrix, bool editTransformDecomposition)
{
static ImGuizmo::MODE mCurrentGizmoMode(ImGuizmo::LOCAL);
static bool useSnap = false;
static float snap[3] = { 1.f, 1.f, 1.f };
static float bounds[] = { -0.5f, -0.5f, -0.5f, 0.5f, 0.5f, 0.5f };
static float boundsSnap[] = { 0.1f, 0.1f, 0.1f };
static bool boundSizing = false;
static bool boundSizingSnap = false;
if (editTransformDecomposition)
{
if (ImGui::IsKeyPressed(90))
mCurrentGizmoOperation = ImGuizmo::TRANSLATE;
if (ImGui::IsKeyPressed(69))
mCurrentGizmoOperation = ImGuizmo::ROTATE;
if (ImGui::IsKeyPressed(82)) // r Key
mCurrentGizmoOperation = ImGuizmo::SCALE;
if (ImGui::RadioButton("Translate", mCurrentGizmoOperation == ImGuizmo::TRANSLATE))
mCurrentGizmoOperation = ImGuizmo::TRANSLATE;
ImGui::SameLine();
if (ImGui::RadioButton("Rotate", mCurrentGizmoOperation == ImGuizmo::ROTATE))
mCurrentGizmoOperation = ImGuizmo::ROTATE;
ImGui::SameLine();
if (ImGui::RadioButton("Scale", mCurrentGizmoOperation == ImGuizmo::SCALE))
mCurrentGizmoOperation = ImGuizmo::SCALE;
float matrixTranslation[3], matrixRotation[3], matrixScale[3];
ImGuizmo::DecomposeMatrixToComponents(matrix, matrixTranslation, matrixRotation, matrixScale);
ImGui::InputFloat3("Tr", matrixTranslation);
ImGui::InputFloat3("Rt", matrixRotation);
ImGui::InputFloat3("Sc", matrixScale);
ImGuizmo::RecomposeMatrixFromComponents(matrixTranslation, matrixRotation, matrixScale, matrix);
if (mCurrentGizmoOperation != ImGuizmo::SCALE)
{
if (ImGui::RadioButton("Local", mCurrentGizmoMode == ImGuizmo::LOCAL))
mCurrentGizmoMode = ImGuizmo::LOCAL;
ImGui::SameLine();
if (ImGui::RadioButton("World", mCurrentGizmoMode == ImGuizmo::WORLD))
mCurrentGizmoMode = ImGuizmo::WORLD;
}
if (ImGui::IsKeyPressed(83))
useSnap = !useSnap;
ImGui::Checkbox("", &useSnap);
ImGui::SameLine();
switch (mCurrentGizmoOperation)
{
case ImGuizmo::TRANSLATE:
ImGui::InputFloat3("Snap", &snap[0]);
break;
case ImGuizmo::ROTATE:
ImGui::InputFloat("Angle Snap", &snap[0]);
break;
case ImGuizmo::SCALE:
ImGui::InputFloat("Scale Snap", &snap[0]);
break;
}
ImGui::Checkbox("Bound Sizing", &boundSizing);
if (boundSizing)
{
ImGui::PushID(3);
ImGui::Checkbox("", &boundSizingSnap);
ImGui::SameLine();
ImGui::InputFloat3("Snap", boundsSnap);
ImGui::PopID();
}
}
ImGuiIO& io = ImGui::GetIO();
float viewManipulateRight = io.DisplaySize.x;
float viewManipulateTop = 0;
if (useWindow)
{
ImGui::SetNextWindowSize(ImVec2(800, 400));
ImGui::SetNextWindowPos(ImVec2(400,20));
ImGui::PushStyleColor(ImGuiCol_WindowBg, (ImVec4)ImColor(0.35f, 0.3f, 0.3f));
ImGui::Begin("Gizmo", 0, ImGuiWindowFlags_NoMove);
ImGuizmo::SetDrawlist();
float windowWidth = (float)ImGui::GetWindowWidth();
float windowHeight = (float)ImGui::GetWindowHeight();
ImGuizmo::SetRect(ImGui::GetWindowPos().x, ImGui::GetWindowPos().y, windowWidth, windowHeight);
viewManipulateRight = ImGui::GetWindowPos().x + windowWidth;
viewManipulateTop = ImGui::GetWindowPos().y;
}
else
{
ImGuizmo::SetRect(0, 0, io.DisplaySize.x, io.DisplaySize.y);
}
ImGuizmo::DrawGrid(cameraView, cameraProjection, identityMatrix, 100.f);
ImGuizmo::DrawCubes(cameraView, cameraProjection, &objectMatrix[0][0], gizmoCount);
ImGuizmo::Manipulate(cameraView, cameraProjection, mCurrentGizmoOperation, mCurrentGizmoMode, matrix, NULL, useSnap ? &snap[0] : NULL, boundSizing ? bounds : NULL, boundSizingSnap ? boundsSnap : NULL);
ImGuizmo::ViewManipulate(cameraView, camDistance, ImVec2(viewManipulateRight - 128, viewManipulateTop), ImVec2(128, 128), 0x10101010);
if (useWindow)
{
ImGui::End();
ImGui::PopStyleColor(1);
}
}
//
//
// ImSequencer interface
//
//
static const char* SequencerItemTypeNames[] = { "Camera","Music", "ScreenEffect", "FadeIn", "Animation" };
struct RampEdit : public ImCurveEdit::Delegate
{
RampEdit()
{
mPts[0][0] = ImVec2(-10.f, 0);
mPts[0][1] = ImVec2(20.f, 0.6f);
mPts[0][2] = ImVec2(25.f, 0.2f);
mPts[0][3] = ImVec2(70.f, 0.4f);
mPts[0][4] = ImVec2(120.f, 1.f);
mPointCount[0] = 5;
mPts[1][0] = ImVec2(-50.f, 0.2f);
mPts[1][1] = ImVec2(33.f, 0.7f);
mPts[1][2] = ImVec2(80.f, 0.2f);
mPts[1][3] = ImVec2(82.f, 0.8f);
mPointCount[1] = 4;
mPts[2][0] = ImVec2(40.f, 0);
mPts[2][1] = ImVec2(60.f, 0.1f);
mPts[2][2] = ImVec2(90.f, 0.82f);
mPts[2][3] = ImVec2(150.f, 0.24f);
mPts[2][4] = ImVec2(200.f, 0.34f);
mPts[2][5] = ImVec2(250.f, 0.12f);
mPointCount[2] = 6;
mbVisible[0] = mbVisible[1] = mbVisible[2] = true;
mMax = ImVec2(1.f, 1.f);
mMin = ImVec2(0.f, 0.f);
}
size_t GetCurveCount()
{
return 3;
}
bool IsVisible(size_t curveIndex)
{
return mbVisible[curveIndex];
}
size_t GetPointCount(size_t curveIndex)
{
return mPointCount[curveIndex];
}
uint32_t GetCurveColor(size_t curveIndex)
{
uint32_t cols[] = { 0xFF0000FF, 0xFF00FF00, 0xFFFF0000 };
return cols[curveIndex];
}
ImVec2* GetPoints(size_t curveIndex)
{
return mPts[curveIndex];
}
virtual ImCurveEdit::CurveType GetCurveType(size_t curveIndex) const { return ImCurveEdit::CurveSmooth; }
virtual int EditPoint(size_t curveIndex, int pointIndex, ImVec2 value)
{
mPts[curveIndex][pointIndex] = ImVec2(value.x, value.y);
SortValues(curveIndex);
for (size_t i = 0; i < GetPointCount(curveIndex); i++)
{
if (mPts[curveIndex][i].x == value.x)
return (int)i;
}
return pointIndex;
}
virtual void AddPoint(size_t curveIndex, ImVec2 value)
{
if (mPointCount[curveIndex] >= 8)
return;
mPts[curveIndex][mPointCount[curveIndex]++] = value;
SortValues(curveIndex);
}
virtual ImVec2& GetMax() { return mMax; }
virtual ImVec2& GetMin() { return mMin; }
virtual unsigned int GetBackgroundColor() { return 0; }
ImVec2 mPts[3][8];
size_t mPointCount[3];
bool mbVisible[3];
ImVec2 mMin;
ImVec2 mMax;
private:
void SortValues(size_t curveIndex)
{
auto b = std::begin(mPts[curveIndex]);
auto e = std::begin(mPts[curveIndex]) + GetPointCount(curveIndex);
std::sort(b, e, [](ImVec2 a, ImVec2 b) { return a.x < b.x; });
}
};
struct MySequence : public ImSequencer::SequenceInterface
{
// interface with sequencer
virtual int GetFrameMin() const {
return mFrameMin;
}
virtual int GetFrameMax() const {
return mFrameMax;
}
virtual int GetItemCount() const { return (int)myItems.size(); }
virtual int GetItemTypeCount() const { return sizeof(SequencerItemTypeNames) / sizeof(char*); }
virtual const char* GetItemTypeName(int typeIndex) const { return SequencerItemTypeNames[typeIndex]; }
virtual const char* GetItemLabel(int index) const
{
static char tmps[512];
snprintf(tmps, 512, "[%02d] %s", index, SequencerItemTypeNames[myItems[index].mType]);
return tmps;
}
virtual void Get(int index, int** start, int** end, int* type, unsigned int* color)
{
MySequenceItem& item = myItems[index];
if (color)
*color = 0xFFAA8080; // same color for everyone, return color based on type
if (start)
*start = &item.mFrameStart;
if (end)
*end = &item.mFrameEnd;
if (type)
*type = item.mType;
}
virtual void Add(int type) { myItems.push_back(MySequenceItem{ type, 0, 10, false }); };
virtual void Del(int index) { myItems.erase(myItems.begin() + index); }
virtual void Duplicate(int index) { myItems.push_back(myItems[index]); }
virtual size_t GetCustomHeight(int index) { return myItems[index].mExpanded ? 300 : 0; }
// my datas
MySequence() : mFrameMin(0), mFrameMax(0) {}
int mFrameMin, mFrameMax;
struct MySequenceItem
{
int mType;
int mFrameStart, mFrameEnd;
bool mExpanded;
};
std::vector<MySequenceItem> myItems;
RampEdit rampEdit;
virtual void DoubleClick(int index) {
if (myItems[index].mExpanded)
{
myItems[index].mExpanded = false;
return;
}
for (auto& item : myItems)
item.mExpanded = false;
myItems[index].mExpanded = !myItems[index].mExpanded;
}
virtual void CustomDraw(int index, ImDrawList* draw_list, const ImRect& rc, const ImRect& legendRect, const ImRect& clippingRect, const ImRect& legendClippingRect)
{
static const char* labels[] = { "Translation", "Rotation" , "Scale" };
rampEdit.mMax = ImVec2(float(mFrameMax), 1.f);
rampEdit.mMin = ImVec2(float(mFrameMin), 0.f);
draw_list->PushClipRect(legendClippingRect.Min, legendClippingRect.Max, true);
for (int i = 0; i < 3; i++)
{
ImVec2 pta(legendRect.Min.x + 30, legendRect.Min.y + i * 14.f);
ImVec2 ptb(legendRect.Max.x, legendRect.Min.y + (i + 1) * 14.f);
draw_list->AddText(pta, rampEdit.mbVisible[i] ? 0xFFFFFFFF : 0x80FFFFFF, labels[i]);
if (ImRect(pta, ptb).Contains(ImGui::GetMousePos()) && ImGui::IsMouseClicked(0))
rampEdit.mbVisible[i] = !rampEdit.mbVisible[i];
}
draw_list->PopClipRect();
ImGui::SetCursorScreenPos(rc.Min);
ImCurveEdit::Edit(rampEdit, rc.Max - rc.Min, 137 + index, &clippingRect);
}
virtual void CustomDrawCompact(int index, ImDrawList* draw_list, const ImRect& rc, const ImRect& clippingRect)
{
rampEdit.mMax = ImVec2(float(mFrameMax), 1.f);
rampEdit.mMin = ImVec2(float(mFrameMin), 0.f);
draw_list->PushClipRect(clippingRect.Min, clippingRect.Max, true);
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < rampEdit.mPointCount[i]; j++)
{
float p = rampEdit.mPts[i][j].x;
if (p < myItems[index].mFrameStart || p > myItems[index].mFrameEnd)
continue;
float r = (p - mFrameMin) / float(mFrameMax - mFrameMin);
float x = ImLerp(rc.Min.x, rc.Max.x, r);
draw_list->AddLine(ImVec2(x, rc.Min.y + 6), ImVec2(x, rc.Max.y - 4), 0xAA000000, 4.f);
}
}
draw_list->PopClipRect();
}
};
//
//
// GraphEditor interface
//
//
template <typename T, std::size_t N>
struct Array
{
T data[N];
const size_t size() const { return N; }
const T operator [] (size_t index) const { return data[index]; }
operator T* () {
T* p = new T[N];
memcpy(p, data, sizeof(data));
return p;
}
};
template <typename T, typename ... U>
Array(T, U...) -> Array<T, 1 + sizeof...(U)>;
struct GraphEditorDelegate : public GraphEditor::Delegate
{
bool AllowedLink(GraphEditor::NodeIndex from, GraphEditor::NodeIndex to) override
{
return true;
}
void SelectNode(GraphEditor::NodeIndex nodeIndex, bool selected) override
{
mNodes[nodeIndex].mSelected = selected;
}
void MoveSelectedNodes(const ImVec2 delta) override
{
for (auto& node : mNodes)
{
if (!node.mSelected)
{
continue;
}
node.x += delta.x;
node.y += delta.y;
}
}
virtual void RightClick(GraphEditor::NodeIndex nodeIndex, GraphEditor::SlotIndex slotIndexInput, GraphEditor::SlotIndex slotIndexOutput) override
{
}
void AddLink(GraphEditor::NodeIndex inputNodeIndex, GraphEditor::SlotIndex inputSlotIndex, GraphEditor::NodeIndex outputNodeIndex, GraphEditor::SlotIndex outputSlotIndex) override
{
mLinks.push_back({ inputNodeIndex, inputSlotIndex, outputNodeIndex, outputSlotIndex });
}
void DelLink(GraphEditor::LinkIndex linkIndex) override
{
mLinks.erase(mLinks.begin() + linkIndex);
}
void CustomDraw(ImDrawList* drawList, ImRect rectangle, GraphEditor::NodeIndex nodeIndex) override
{
drawList->AddLine(rectangle.Min, rectangle.Max, IM_COL32(0, 0, 0, 255));
drawList->AddText(rectangle.Min, IM_COL32(255, 128, 64, 255), "Draw");
}
const size_t GetTemplateCount() override
{
return sizeof(mTemplates) / sizeof(GraphEditor::Template);
}
const GraphEditor::Template GetTemplate(GraphEditor::TemplateIndex index) override
{
return mTemplates[index];
}
const size_t GetNodeCount() override
{
return mNodes.size();
}
const GraphEditor::Node GetNode(GraphEditor::NodeIndex index) override
{
const auto& myNode = mNodes[index];
return GraphEditor::Node
{
myNode.name,
myNode.templateIndex,
ImRect(ImVec2(myNode.x, myNode.y), ImVec2(myNode.x + 200, myNode.y + 200)),
myNode.mSelected
};
}
const size_t GetLinkCount() override
{
return mLinks.size();
}
const GraphEditor::Link GetLink(GraphEditor::LinkIndex index) override
{
return mLinks[index];
}
// Graph datas
static const inline GraphEditor::Template mTemplates[] = {
{
IM_COL32(160, 160, 180, 255),
IM_COL32(100, 100, 140, 255),
IM_COL32(110, 110, 150, 255),
1,
Array{"MyInput"},
nullptr,
2,
Array{"MyOutput0", "MyOuput1"},
nullptr
},
{
IM_COL32(180, 160, 160, 255),
IM_COL32(140, 100, 100, 255),
IM_COL32(150, 110, 110, 255),
3,
nullptr,
Array{ IM_COL32(200,100,100,255), IM_COL32(100,200,100,255), IM_COL32(100,100,200,255) },
1,
Array{"MyOutput0"},
Array{ IM_COL32(200,200,200,255)}
}
};
struct Node
{
const char* name;
GraphEditor::TemplateIndex templateIndex;
float x, y;
bool mSelected;
};
std::vector<Node> mNodes = {
{
"My Node 0",
0,
0, 0,
false
},
{
"My Node 1",
0,
400, 0,
false
},
{
"My Node 2",
1,
400, 400,
false
}
};
std::vector<GraphEditor::Link> mLinks = { {0, 0, 1, 0} };
};
int main(int, char**)
{
ImApp::ImApp imApp;
ImApp::Config config;
config.mWidth = 1280;
config.mHeight = 720;
//config.mFullscreen = true;
imApp.Init(config);
int lastUsing = 0;
float cameraView[16] =
{ 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
0.f, 0.f, 1.f, 0.f,
0.f, 0.f, 0.f, 1.f };
float cameraProjection[16];
// build a procedural texture. Copy/pasted and adapted from https://rosettacode.org/wiki/Plasma_effect#Graphics_version
unsigned int procTexture;
glGenTextures(1, &procTexture);
glBindTexture(GL_TEXTURE_2D, procTexture);
uint32_t* tempBitmap = new uint32_t[256 * 256];
int index = 0;
for (int y = 0; y < 256; y++)
{
for (int x = 0; x < 256; x++)
{
float dx = x + .5f;
float dy = y + .5f;
float dv = sinf(x * 0.02f) + sinf(0.03f * (x + y)) + sinf(sqrtf(0.4f * (dx * dx + dy * dy) + 1.f));
tempBitmap[index] = 0xFF000000 +
(int(255 * fabsf(sinf(dv * 3.141592f))) << 16) +
(int(255 * fabsf(sinf(dv * 3.141592f + 2 * 3.141592f / 3))) << 8) +
(int(255 * fabs(sin(dv * 3.141592f + 4.f * 3.141592f / 3.f))));
index++;
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, tempBitmap);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
delete [] tempBitmap;
// sequence with default values
MySequence mySequence;
mySequence.mFrameMin = -100;
mySequence.mFrameMax = 1000;
mySequence.myItems.push_back(MySequence::MySequenceItem{ 0, 10, 30, false });
mySequence.myItems.push_back(MySequence::MySequenceItem{ 1, 20, 30, true });
mySequence.myItems.push_back(MySequence::MySequenceItem{ 3, 12, 60, false });
mySequence.myItems.push_back(MySequence::MySequenceItem{ 2, 61, 90, false });
mySequence.myItems.push_back(MySequence::MySequenceItem{ 4, 90, 99, false });
// Camera projection
bool isPerspective = true;
float fov = 27.f;
float viewWidth = 10.f; // for orthographic
float camYAngle = 165.f / 180.f * 3.14159f;
float camXAngle = 32.f / 180.f * 3.14159f;
bool firstFrame = true;
// Main loop
while (!imApp.Done())
{
imApp.NewFrame();
ImGuiIO& io = ImGui::GetIO();
if (isPerspective)
{
Perspective(fov, io.DisplaySize.x / io.DisplaySize.y, 0.1f, 100.f, cameraProjection);
}
else
{
float viewHeight = viewWidth * io.DisplaySize.y / io.DisplaySize.x;
OrthoGraphic(-viewWidth, viewWidth, -viewHeight, viewHeight, 1000.f, -1000.f, cameraProjection);
}
ImGuizmo::SetOrthographic(!isPerspective);
ImGuizmo::BeginFrame();
ImGui::SetNextWindowPos(ImVec2(1024, 100));
ImGui::SetNextWindowSize(ImVec2(256, 256));
// create a window and insert the inspector
ImGui::SetNextWindowPos(ImVec2(10, 10));
ImGui::SetNextWindowSize(ImVec2(320, 340));
ImGui::Begin("Editor");
if (ImGui::RadioButton("Full view", !useWindow)) useWindow = false;
ImGui::SameLine();
if (ImGui::RadioButton("Window", useWindow)) useWindow = true;
ImGui::Text("Camera");
bool viewDirty = false;
if (ImGui::RadioButton("Perspective", isPerspective)) isPerspective = true;
ImGui::SameLine();
if (ImGui::RadioButton("Orthographic", !isPerspective)) isPerspective = false;
if (isPerspective)
{
ImGui::SliderFloat("Fov", &fov, 20.f, 110.f);
}
else
{
ImGui::SliderFloat("Ortho width", &viewWidth, 1, 20);
}
viewDirty |= ImGui::SliderFloat("Distance", &camDistance, 1.f, 10.f);
ImGui::SliderInt("Gizmo count", &gizmoCount, 1, 4);
if (viewDirty || firstFrame)
{
float eye[] = { cosf(camYAngle) * cosf(camXAngle) * camDistance, sinf(camXAngle) * camDistance, sinf(camYAngle) * cosf(camXAngle) * camDistance };
float at[] = { 0.f, 0.f, 0.f };
float up[] = { 0.f, 1.f, 0.f };
LookAt(eye, at, up, cameraView);
firstFrame = false;
}
ImGui::Text("X: %f Y: %f", io.MousePos.x, io.MousePos.y);
if (ImGuizmo::IsUsing())
{
ImGui::Text("Using gizmo");
}
else
{
ImGui::Text(ImGuizmo::IsOver()?"Over gizmo":"");
ImGui::SameLine();
ImGui::Text(ImGuizmo::IsOver(ImGuizmo::TRANSLATE) ? "Over translate gizmo" : "");
ImGui::SameLine();
ImGui::Text(ImGuizmo::IsOver(ImGuizmo::ROTATE) ? "Over rotate gizmo" : "");
ImGui::SameLine();
ImGui::Text(ImGuizmo::IsOver(ImGuizmo::SCALE) ? "Over scale gizmo" : "");
}
ImGui::Separator();
for (int matId = 0; matId < gizmoCount; matId++)
{
ImGuizmo::SetID(matId);
EditTransform(cameraView, cameraProjection, objectMatrix[matId], lastUsing == matId);
if (ImGuizmo::IsUsing())
{
lastUsing = matId;
}
}
ImGui::End();
ImGui::SetNextWindowPos(ImVec2(10, 350));
ImGui::SetNextWindowSize(ImVec2(940, 480));
ImGui::Begin("Other controls");
if (ImGui::CollapsingHeader("Zoom Slider"))
{
static float uMin = 0.4f, uMax = 0.6f;
static float vMin = 0.4f, vMax = 0.6f;
ImGui::Image((ImTextureID)(uint64_t)procTexture, ImVec2(900,300), ImVec2(uMin, vMin), ImVec2(uMax, vMax));
{
ImGui::SameLine();
ImGui::PushID(18);
ImZoomSlider::ImZoomSlider(0.f, 1.f, vMin, vMax, 0.01f, ImZoomSlider::ImGuiZoomSliderFlags_Vertical);
ImGui::PopID();
}
{
ImGui::PushID(19);
ImZoomSlider::ImZoomSlider(0.f, 1.f, uMin, uMax);
ImGui::PopID();
}
}
if (ImGui::CollapsingHeader("Sequencer"))
{
// let's create the sequencer
static int selectedEntry = -1;
static int firstFrame = 0;
static bool expanded = true;
static int currentFrame = 100;
ImGui::PushItemWidth(130);
ImGui::InputInt("Frame Min", &mySequence.mFrameMin);
ImGui::SameLine();
ImGui::InputInt("Frame ", &currentFrame);
ImGui::SameLine();
ImGui::InputInt("Frame Max", &mySequence.mFrameMax);
ImGui::PopItemWidth();
Sequencer(&mySequence, &currentFrame, &expanded, &selectedEntry, &firstFrame, ImSequencer::SEQUENCER_EDIT_STARTEND | ImSequencer::SEQUENCER_ADD | ImSequencer::SEQUENCER_DEL | ImSequencer::SEQUENCER_COPYPASTE | ImSequencer::SEQUENCER_CHANGE_FRAME);
// add a UI to edit that particular item
if (selectedEntry != -1)
{
const MySequence::MySequenceItem &item = mySequence.myItems[selectedEntry];
ImGui::Text("I am a %s, please edit me", SequencerItemTypeNames[item.mType]);
// switch (type) ....
}
}
// Graph Editor
static GraphEditor::Options options;
static GraphEditorDelegate delegate;
static GraphEditor::ViewState viewState;
static GraphEditor::FitOnScreen fit = GraphEditor::Fit_None;
static bool showGraphEditor = true;
if (ImGui::CollapsingHeader("Graph Editor"))
{
ImGui::Checkbox("Show GraphEditor", &showGraphEditor);
GraphEditor::EditOptions(options);
}
ImGui::End();
if (showGraphEditor)
{
ImGui::Begin("Graph Editor", NULL, 0);
if (ImGui::Button("Fit all nodes"))
{
fit = GraphEditor::Fit_AllNodes;
}
ImGui::SameLine();
if (ImGui::Button("Fit selected nodes"))
{
fit = GraphEditor::Fit_SelectedNodes;
}
GraphEditor::Show(delegate, options, viewState, true, &fit);
ImGui::End();
}
// render everything
glClearColor(0.45f, 0.4f, 0.4f, 1.f);
glClear(GL_COLOR_BUFFER_BIT);
imApp.EndFrame();
}
imApp.Finish();
return 0;
}
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