HistogramView.h

#pragma once

#include "direct2d/D2HistogramRender.h"
#include "controllers/ScopeController.h"
#include "controls/ScopeButtonCtrl.h"
#include "ScopeDatatypes.h"
#include "resource.h"

// Forward declarations
namespace scope {
class SCOPE_MULTIIMAGE_T;
typedef std::shared_ptr<const SCOPE_MULTIIMAGE_T> SCOPE_MULTIIMAGECPTR_T;
class ScopeMultiHistogram;
typedef std::shared_ptr<ScopeMultiHistogram> ScopeMultiHistogramPtr;
}

namespace scope {
    namespace gui {

class CHistogramView
    : public CWindowImpl<CHistogramView> {

protected:
    static const uint32_t width = 512;

    const uint32_t area;

    const uint32_t channels;

    uint16_t range;

    ScopeController scope_controller;

    SCOPE_MULTIIMAGECPTR_T current_frame;

    ScopeMultiHistogramPtr current_histogram;

    std::vector<uint16_t> lower_limits;

    std::vector<uint16_t> upper_limits;

    d2d::D2HistogramRender renderer;

    std::vector<bool> dragginglower;

    std::vector<bool> draggingupper;

    std::vector<FLOAT> llpos;

    std::vector<FLOAT> ulpos;

protected:
    void SetLimits();

    void UpdateHistogramFrame();

public:
    CHistogramView(const uint32_t& _area, const uint32_t& _channels, uint16_t _range);

    DECLARE_WND_CLASS_EX(nullptr, CS_HREDRAW | CS_VREDRAW, -1);

    BEGIN_MSG_MAP(CChannelView)
        MSG_WM_SHOWWINDOW(OnShowWindow)
        MSG_WM_PAINT(OnPaint)
        MSG_WM_LBUTTONDOWN(OnLButtonDown)
        MSG_WM_LBUTTONUP(OnLButtonUp)
        MSG_WM_MOUSEMOVE(OnMouseMove)
        MSG_WM_DISPLAYCHANGE(OnDisplayChange)
        MSG_WM_ERASEBKGND(OnEraseBkgnd)
        MSG_WM_SIZE(OnSize)
    END_MSG_MAP()

    BOOL PreTranslateMessage(MSG* pMsg);

    virtual void OnFinalMessage(HWND /*hWnd*/);

    void OnShowWindow(BOOL bShow, UINT nStatus);

    void OnLButtonDown(UINT nFlags, CPoint point);

    void OnLButtonUp(UINT nFlags, CPoint point);

    void OnMouseMove(UINT nFlags, CPoint point);

    LRESULT OnEraseBkgnd(HDC wParam) { return true; }

    void OnPaint(CDCHandle /*dc*/);

    void OnSize(UINT /*type*/, CSize _size);

    void OnDisplayChange(UINT /*bpp*/, CSize /*resolution*/);