XCEngine/new_editor/include/XCEditor/Fields/UIEditorNumberField.h

#pragma once

#include <XCEngine/UI/DrawData.h>

#include <cstddef>
#include <cstdint>
#include <string>
#include <string_view>

namespace XCEngine::UI::Editor::Widgets {

enum class UIEditorNumberFieldHitTargetKind : std::uint8_t {
    None = 0,
    Row,
    ValueBox
};

struct UIEditorNumberFieldSpec {
    std::string fieldId = {};
    std::string label = {};
    double value = 0.0;
    double step = 1.0;
    double minValue = 0.0;
    double maxValue = 100.0;
    bool integerMode = true;
    bool readOnly = false;
};

struct UIEditorNumberFieldState {
    UIEditorNumberFieldHitTargetKind hoveredTarget = UIEditorNumberFieldHitTargetKind::None;
    UIEditorNumberFieldHitTargetKind activeTarget = UIEditorNumberFieldHitTargetKind::None;
    bool focused = false;
    bool editing = false;
    std::string displayText = {};
};

struct UIEditorNumberFieldMetrics {
    float rowHeight = 22.0f;
    float horizontalPadding = 12.0f;
    float labelControlGap = 20.0f;
    float controlColumnStart = 236.0f;
    float controlTrailingInset = 8.0f;
    float valueBoxMinWidth = 96.0f;
    float controlInsetY = 1.0f;
    float labelTextInsetY = 0.0f;
    float labelFontSize = 11.0f;
    float valueTextInsetX = 5.0f;
    float valueTextInsetY = 0.0f;
    float valueFontSize = 12.0f;
    float cornerRounding = 0.0f;
    float valueBoxRounding = 2.0f;
    float borderThickness = 1.0f;
    float focusedBorderThickness = 1.0f;
};

struct UIEditorNumberFieldPalette {
    ::XCEngine::UI::UIColor surfaceColor =
        ::XCEngine::UI::UIColor(0.0f, 0.0f, 0.0f, 0.0f);
    ::XCEngine::UI::UIColor borderColor =
        ::XCEngine::UI::UIColor(0.0f, 0.0f, 0.0f, 0.0f);
    ::XCEngine::UI::UIColor focusedBorderColor =
        ::XCEngine::UI::UIColor(0.0f, 0.0f, 0.0f, 0.0f);
    ::XCEngine::UI::UIColor rowHoverColor =
        ::XCEngine::UI::UIColor(0.0f, 0.0f, 0.0f, 0.0f);
    ::XCEngine::UI::UIColor rowActiveColor =
        ::XCEngine::UI::UIColor(0.0f, 0.0f, 0.0f, 0.0f);
    ::XCEngine::UI::UIColor valueBoxColor =
        ::XCEngine::UI::UIColor(0.18f, 0.18f, 0.18f, 1.0f);
    ::XCEngine::UI::UIColor valueBoxHoverColor =
        ::XCEngine::UI::UIColor(0.21f, 0.21f, 0.21f, 1.0f);
    ::XCEngine::UI::UIColor valueBoxEditingColor =
        ::XCEngine::UI::UIColor(0.24f, 0.24f, 0.24f, 1.0f);
    ::XCEngine::UI::UIColor readOnlyColor =
        ::XCEngine::UI::UIColor(0.17f, 0.17f, 0.17f, 1.0f);
    ::XCEngine::UI::UIColor controlBorderColor =
        ::XCEngine::UI::UIColor(0.14f, 0.14f, 0.14f, 1.0f);
    ::XCEngine::UI::UIColor controlFocusedBorderColor =
        ::XCEngine::UI::UIColor(0.46f, 0.46f, 0.46f, 1.0f);
    ::XCEngine::UI::UIColor labelColor =
        ::XCEngine::UI::UIColor(0.80f, 0.80f, 0.80f, 1.0f);
    ::XCEngine::UI::UIColor valueColor =
        ::XCEngine::UI::UIColor(0.92f, 0.92f, 0.92f, 1.0f);
    ::XCEngine::UI::UIColor readOnlyValueColor =
        ::XCEngine::UI::UIColor(0.62f, 0.62f, 0.62f, 1.0f);
};

struct UIEditorNumberFieldLayout {
    ::XCEngine::UI::UIRect bounds = {};
    ::XCEngine::UI::UIRect labelRect = {};
    ::XCEngine::UI::UIRect controlRect = {};
    ::XCEngine::UI::UIRect valueRect = {};
};

struct UIEditorNumberFieldHitTarget {
    UIEditorNumberFieldHitTargetKind kind = UIEditorNumberFieldHitTargetKind::None;
};

bool IsUIEditorNumberFieldPointInside(
    const ::XCEngine::UI::UIRect& rect,
    const ::XCEngine::UI::UIPoint& point);

double NormalizeUIEditorNumberFieldValue(
    const UIEditorNumberFieldSpec& spec,
    double value);

bool TryParseUIEditorNumberFieldValue(
    const UIEditorNumberFieldSpec& spec,
    std::string_view text,
    double& outValue);

std::string FormatUIEditorNumberFieldValue(const UIEditorNumberFieldSpec& spec);

UIEditorNumberFieldLayout BuildUIEditorNumberFieldLayout(
    const ::XCEngine::UI::UIRect& bounds,
    const UIEditorNumberFieldSpec& spec,
    const UIEditorNumberFieldMetrics& metrics = {});

UIEditorNumberFieldHitTarget HitTestUIEditorNumberField(
    const UIEditorNumberFieldLayout& layout,
    const ::XCEngine::UI::UIPoint& point);

void AppendUIEditorNumberFieldBackground(
    ::XCEngine::UI::UIDrawList& drawList,
    const UIEditorNumberFieldLayout& layout,
    const UIEditorNumberFieldSpec& spec,
    const UIEditorNumberFieldState& state,
    const UIEditorNumberFieldPalette& palette = {},
    const UIEditorNumberFieldMetrics& metrics = {});

void AppendUIEditorNumberFieldForeground(
    ::XCEngine::UI::UIDrawList& drawList,
    const UIEditorNumberFieldLayout& layout,
    const UIEditorNumberFieldSpec& spec,
    const UIEditorNumberFieldState& state,
    const UIEditorNumberFieldPalette& palette = {},
    const UIEditorNumberFieldMetrics& metrics = {});

void AppendUIEditorNumberField(
    ::XCEngine::UI::UIDrawList& drawList,
    const ::XCEngine::UI::UIRect& bounds,
    const UIEditorNumberFieldSpec& spec,
    const UIEditorNumberFieldState& state,
    const UIEditorNumberFieldPalette& palette = {},
    const UIEditorNumberFieldMetrics& metrics = {});

} // namespace XCEngine::UI::Editor::Widgets