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Refactor scene viewport orientation gizmo

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ssdfasd
2026-03-30 00:48:15 +08:00
parent c8f79dfb0f
commit 7aca8199be
4 changed files with 483 additions and 61 deletions
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70
editor/src/Viewport/SceneViewportOverlayRenderer.cpp
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@@ -1,15 +1,13 @@
#include "SceneViewportOverlayRenderer.h"
#include "SceneViewportMath.h"
#include "SceneViewportOrientationGizmo.h"
#include <algorithm>
namespace XCEngine {
namespace Editor {
namespace {
Math::Matrix4x4 BuildOverlayViewMatrix(const SceneViewportOverlayData& overlay) {
return BuildSceneViewportViewMatrix(overlay);
}
ImU32 ToImGuiColor(const Math::Color& color) {
const auto toChannel = [](float value) -> int {
return static_cast<int>(std::clamp(value, 0.0f, 1.0f) * 255.0f + 0.5f);
@@ -22,65 +20,15 @@ ImU32 ToImGuiColor(const Math::Color& color) {
toChannel(color.a));
}
void DrawAxisLabel(ImDrawList* drawList, const ImVec2& position, const char* label, ImU32 color) {
if (drawList == nullptr || label == nullptr) {
return;
}
const ImVec2 labelSize = ImGui::CalcTextSize(label);
drawList->AddText(
ImVec2(position.x - labelSize.x * 0.5f, position.y - labelSize.y * 0.5f),
color,
label);
}
void DrawSceneAxisWidget(
ImDrawList* drawList,
const SceneViewportOverlayData& overlay,
const ImVec2& viewportMin,
const ImVec2& viewportMax) {
if (drawList == nullptr || !overlay.valid) {
return;
}
const Math::Matrix4x4 view = BuildOverlayViewMatrix(overlay);
const ImVec2 center(viewportMax.x - 52.0f, viewportMin.y + 52.0f);
const float radius = 25.0f;
drawList->AddCircleFilled(center, radius + 12.0f, IM_COL32(17, 19, 22, 178), 24);
drawList->AddCircle(center, radius + 12.0f, IM_COL32(255, 255, 255, 30), 24, 1.0f);
struct AxisLine {
Math::Vector3 axis;
const char* label;
ImU32 color;
};
const AxisLine axes[] = {
{ Math::Vector3::Right(), "x", IM_COL32(239, 83, 80, 255) },
{ Math::Vector3::Up(), "y", IM_COL32(102, 187, 106, 255) },
{ Math::Vector3::Forward(), "z", IM_COL32(66, 165, 245, 255) }
};
for (const AxisLine& axis : axes) {
const Math::Vector3 viewAxis = view.MultiplyVector(axis.axis);
const ImVec2 end(
center.x + viewAxis.x * radius,
center.y - viewAxis.y * radius);
drawList->AddLine(center, end, axis.color, 2.0f);
drawList->AddCircleFilled(end, 6.0f, axis.color, 16);
DrawAxisLabel(drawList, end, axis.label, IM_COL32(245, 245, 245, 255));
}
}
void DrawSceneMoveGizmo(
ImDrawList* drawList,
const ImVec2& viewportMin,
const SceneViewportMoveGizmoDrawData& moveGizmo) {
if (drawList == nullptr || !moveGizmo.visible) {
return;
}
const ImVec2 pivot(moveGizmo.pivot.x, moveGizmo.pivot.y);
const ImVec2 pivot(viewportMin.x + moveGizmo.pivot.x, viewportMin.y + moveGizmo.pivot.y);
drawList->AddCircleFilled(pivot, moveGizmo.pivotRadius + 1.0f, IM_COL32(20, 22, 24, 220), 20);
drawList->AddCircle(pivot, moveGizmo.pivotRadius + 1.0f, IM_COL32(255, 255, 255, 48), 20, 1.0f);
@@ -91,8 +39,8 @@ void DrawSceneMoveGizmo(
const ImU32 color = ToImGuiColor(handle.color);
const float thickness = handle.active ? 4.0f : (handle.hovered ? 3.0f : 2.0f);
const ImVec2 start(handle.start.x, handle.start.y);
const ImVec2 end(handle.end.x, handle.end.y);
const ImVec2 start(viewportMin.x + handle.start.x, viewportMin.y + handle.start.y);
const ImVec2 end(viewportMin.x + handle.end.x, viewportMin.y + handle.end.y);
drawList->AddLine(start, end, color, thickness);
drawList->AddCircleFilled(end, handle.active ? 6.5f : 5.5f, color, 20);
}
@@ -113,10 +61,10 @@ void DrawSceneViewportOverlay(
drawList->PushClipRect(viewportMin, viewportMax, true);
if (overlay.valid) {
DrawSceneAxisWidget(drawList, overlay, viewportMin, viewportMax);
DrawSceneViewportOrientationGizmo(drawList, overlay, viewportMin, viewportMax);
}
if (moveGizmo != nullptr) {
DrawSceneMoveGizmo(drawList, *moveGizmo);
DrawSceneMoveGizmo(drawList, viewportMin, *moveGizmo);
}
drawList->PopClipRect();
}