initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/samples/touchtest/touchtest.cpp

@@ -0,0 +1,250 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        touchtest.cpp
+// Purpose:     Multitouch sample
+// Author:      Martin Koegler
+// Modified by:
+// Created:     2015-07-29
+// Copyright:   (c) Martin Koegler
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/wx.h"
+#include "wx/dcbuffer.h"
+
+#include <array>
+
+// Define a new application
+class wxMyApp: public wxApp
+{
+public:
+    bool OnInit() override;
+};
+
+wxDECLARE_APP(wxMyApp);
+
+constexpr unsigned int TOUCH_POINTS = 17;
+
+class MyFrame: public wxFrame
+{
+private:
+    struct TouchState
+    {
+        wxTouchSequenceId id;
+        wxPoint2DDouble last;
+        wxPen pen;
+    };
+    std::array<TouchState, TOUCH_POINTS> m_touchPoints;
+    wxTouchSequenceId m_mouseId = wxUIntToPtr(0xFFFFFFFF);
+    wxBitmap m_backingBitmap;
+
+    int FindIndexOfTouchId(const wxTouchSequenceId& id);
+
+    void DrawStart(const wxTouchSequenceId& id, wxPoint2DDouble pos);
+    void DrawUpdate(const wxTouchSequenceId& id, wxPoint2DDouble pos);
+    void DrawEnd(const wxTouchSequenceId& id, wxPoint2DDouble pos);
+
+public:
+    MyFrame(wxFrame *parent, const wxString& title);
+
+    void OnTouchBegin(wxMultiTouchEvent& event);
+    void OnTouchMove(wxMultiTouchEvent& event);
+    void OnTouchEnd(wxMultiTouchEvent& event);
+
+    void OnMouseDown(wxMouseEvent& event);
+    void OnMouseMove(wxMouseEvent& event);
+    void OnMouseUp(wxMouseEvent& event);
+
+    void OnPaint(wxPaintEvent& event);
+    void OnSize(wxSizeEvent& event);
+    void OnQuit(wxCommandEvent& event);
+
+    wxDECLARE_EVENT_TABLE();
+};
+
+wxIMPLEMENT_APP(wxMyApp);
+
+bool wxMyApp::OnInit()
+{
+    if ( !wxApp::OnInit() )
+        return false;
+
+    wxFrame* frame = new MyFrame(nullptr, "Multi-touch Test");
+    frame->CenterOnScreen();
+    frame->Show(true);
+
+    return true;
+}
+
+wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
+    EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
+    EVT_TOUCH_BEGIN(MyFrame::OnTouchBegin)
+    EVT_TOUCH_MOVE(MyFrame::OnTouchMove)
+    EVT_TOUCH_END(MyFrame::OnTouchEnd)
+    EVT_TOUCH_CANCEL(MyFrame::OnTouchEnd)
+    EVT_LEFT_DOWN(MyFrame::OnMouseDown)
+    EVT_MOTION(MyFrame::OnMouseMove)
+    EVT_LEFT_UP(MyFrame::OnMouseUp)
+
+    EVT_PAINT(MyFrame::OnPaint)
+    EVT_SIZE(MyFrame::OnSize)
+wxEND_EVENT_TABLE()
+
+MyFrame::MyFrame(wxFrame *parent, const wxString& title)
+    : wxFrame(parent, wxID_ANY, title,
+              wxDefaultPosition, wxDefaultSize,
+              wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL)
+{
+    SetBackgroundStyle(wxBG_STYLE_PAINT);
+    SetClientSize(FromDIP(wxSize(800, 600)));
+
+    m_touchPoints[0].pen = wxPen(*wxBLACK, 2);
+    m_touchPoints[1].pen = wxPen(*wxBLUE, 2);
+    m_touchPoints[2].pen = wxPen(*wxCYAN, 2);
+    m_touchPoints[3].pen = wxPen(*wxGREEN, 2);
+    m_touchPoints[4].pen = wxPen(*wxYELLOW, 2);
+    m_touchPoints[5].pen = wxPen(*wxRED, 2);
+    m_touchPoints[6].pen = wxPen(*wxLIGHT_GREY, 2);
+    m_touchPoints[7].pen = wxPen(*wxBLACK, 2, wxPENSTYLE_DOT_DASH);
+    m_touchPoints[8].pen = wxPen(*wxBLUE, 2, wxPENSTYLE_DOT_DASH);
+    m_touchPoints[9].pen = wxPen(*wxCYAN, 2, wxPENSTYLE_DOT_DASH);
+    m_touchPoints[10].pen = wxPen(*wxGREEN, 2, wxPENSTYLE_DOT_DASH);
+    m_touchPoints[11].pen = wxPen(*wxRED, 2, wxPENSTYLE_DOT_DASH);
+    m_touchPoints[12].pen = wxPen(*wxBLACK, 2, wxPENSTYLE_DOT);
+    m_touchPoints[13].pen = wxPen(*wxYELLOW, 2, wxPENSTYLE_DOT);
+    m_touchPoints[14].pen = wxPen(*wxBLUE, 2, wxPENSTYLE_DOT);
+    m_touchPoints[15].pen = wxPen(*wxRED, 2, wxPENSTYLE_DOT);
+    m_touchPoints[16].pen = wxPen(*wxLIGHT_GREY, 2, wxPENSTYLE_DOT);
+
+    wxMenu *file_menu = new wxMenu;
+
+    file_menu->Append(wxID_EXIT);
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+
+    menu_bar->Append(file_menu, "&File");
+    SetMenuBar(menu_bar);
+
+    if (!EnableTouchEvents(wxTOUCH_RAW_EVENTS))
+    {
+        wxLogError("Enabling touch events failed");
+    }
+}
+
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
+{
+    Close(true);
+}
+
+void MyFrame::OnPaint(wxPaintEvent& WXUNUSED(event))
+{
+    wxAutoBufferedPaintDC dc(this);
+    dc.DrawBitmap(m_backingBitmap, 0, 0);
+}
+
+void MyFrame::OnSize(wxSizeEvent& WXUNUSED(event))
+{
+    wxSize size = GetClientSize();
+    m_backingBitmap = wxBitmap(size.x, size.y, 24);
+
+    wxMemoryDC dc(m_backingBitmap);
+    dc.SetBackground(*wxWHITE_BRUSH);
+    dc.Clear();
+
+    Refresh();
+}
+
+int MyFrame::FindIndexOfTouchId(const wxTouchSequenceId& id)
+{
+    // Unique drawing for mouse pointer
+    if (id == m_mouseId)
+        return TOUCH_POINTS - 1;
+
+    int idx = -1;
+    for (unsigned i = 0; i < TOUCH_POINTS; i++)
+    {
+        if (m_touchPoints[i].id == id)
+            idx = i;
+    }
+    return idx;
+}
+
+void MyFrame::DrawStart(const wxTouchSequenceId& id, wxPoint2DDouble pos)
+{
+    int idx = FindIndexOfTouchId(id);
+    if (idx == -1)
+    {
+        for (unsigned i = 0; i < TOUCH_POINTS; i++)
+        {
+            if (!m_touchPoints[i].id.IsOk())
+            {
+                idx = i;
+                break;
+            }
+        }
+    }
+    if (idx == -1)
+        return;
+    m_touchPoints[idx].id = id;
+    m_touchPoints[idx].last = pos;
+}
+
+void MyFrame::DrawUpdate(const wxTouchSequenceId& id, wxPoint2DDouble pos)
+{
+    int idx = FindIndexOfTouchId(id);
+    if (idx == -1)
+        return;
+
+    wxMemoryDC dc(m_backingBitmap);
+    dc.SetPen(m_touchPoints[idx].pen);
+    dc.DrawLine(m_touchPoints[idx].last.GetRounded(), pos.GetRounded());
+
+    m_touchPoints[idx].last = pos;
+
+    Refresh();
+}
+
+void MyFrame::DrawEnd(const wxTouchSequenceId& id, wxPoint2DDouble pos)
+{
+    int idx = FindIndexOfTouchId(id);
+    if (idx == -1)
+        return;
+
+    wxMemoryDC dc(m_backingBitmap);
+    dc.SetPen(m_touchPoints[idx].pen);
+    dc.DrawLine(m_touchPoints[idx].last.GetRounded(), pos.GetRounded());
+
+    m_touchPoints[idx].id.Unset();
+
+    Refresh();
+}
+
+void MyFrame::OnTouchBegin(wxMultiTouchEvent& event)
+{
+    DrawStart(event.GetSequenceId(), event.GetPosition());
+}
+
+void MyFrame::OnTouchMove(wxMultiTouchEvent& event)
+{
+    DrawUpdate(event.GetSequenceId(), event.GetPosition());
+}
+
+void MyFrame::OnTouchEnd(wxMultiTouchEvent& event)
+{
+    DrawEnd(event.GetSequenceId(), event.GetPosition());
+}
+
+void MyFrame::OnMouseDown(wxMouseEvent& event)
+{
+    DrawStart(m_mouseId, event.GetPosition());
+}
+
+void MyFrame::OnMouseMove(wxMouseEvent& event)
+{
+    if (event.LeftIsDown())
+        DrawUpdate(m_mouseId, event.GetPosition());
+}
+
+void MyFrame::OnMouseUp(wxMouseEvent& event)
+{
+    DrawEnd(m_mouseId, event.GetPosition());
+}