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access.cpp
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access.cpp
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#include "access.hpp"
Access::Access(HINSTANCE hInst, LPWSTR pCmdLine, int nCmdShow) :
GeneralErrorHandler{ System },
hInst{ hInst }, pCmdLine{ pCmdLine }, nCmdShow{ nCmdShow },
hMainWnd{ NULL }, hToolBarWnd{ NULL },
uDrawingAreaWidth{ 0 }, uDrawingAreaHeight{ 0 }, uToolBarWidth{ 0 },
hWaitCursor{ HCURSOR(
LoadImageW(NULL, MAKEINTRESOURCEW(OCR_WAIT),
IMAGE_CURSOR, 0, 0, LR_SHARED)) },
hTopLevelMenu{ LoadMenuW(NULL, MAKEINTRESOURCEW(IDR_CONTEXTMENU)) },
hContextMenu{ GetSubMenu(hTopLevelMenu, 0) },
szTextBuffer_0{}, szTextBuffer_1{}, szFileTitle{},
fFatalErrorOccured{ false }, fFileIsOpen{ false },
CP{}, Graph{ CP },
dPFmax{}, P{}, Q{}, Center{},
fArc{}, fDrawEffPerimeter{ false }, fGraph{ false }, fBubbles{},
uNumSegments{},
dVelocityRatio{ 0.5 }, dRadiusOfDetection{ dDrawingAreaSizeApp / 25.0 },
fShowFOverWLine{ false }
{
}
Access::~Access()
{
DestroyMenu(hTopLevelMenu);
}
void Access::OnError(unsigned where, GenErrCode what)
{
NonFatalErrorMessage(GeneralError(where, what, my_name()));
}
LRESULT CALLBACK Access::MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static StaticThis This{};
try
{
switch (msg)
{
case WM_CREATE:
This.ExtractFromWM_CREATE(lParam);
return 0;
case WM_CLOSE:
This->MainWndClose();
return 0;
case WM_DESTROY:
This->MainWndDestroy();
return 0;
case WM_NOTIFY:
This->MainWndNotify(lParam);
return 0;
case WM_SETTINGCHANGE:
if (wParam == SPI_SETWORKAREA)
{
// Screen work area size has changed
This->ResizeWnd();
return 0;
}
else
return DefWindowProcW(hWnd, msg, wParam, lParam);
case WM_DISPLAYCHANGE:
This->ResizeWnd();
return 0;
case WM_MOUSEMOVE:
This->UpdateTitle(LOWORD(lParam), HIWORD(lParam));
return 0;
case WM_LBUTTONDOWN:
This->ProcessLeftClick(LOWORD(lParam), HIWORD(lParam));
return 0;
case WM_CONTEXTMENU:
This->ProcessContextMenu(LOWORD(lParam), HIWORD(lParam));
return 0;
case WM_TIMER:
This->TimerTick();
return 0;
case WM_PAINT:
This->RedrawWndWrapper();
return 0;
case WM_COMMAND:
{
if (HWND(lParam) == This->hToolBarWnd && HIWORD(wParam) == BN_CLICKED) // From toolbar
switch (LOWORD(wParam))
{
case IDS_NEW:
This->ProcessNew();
return 0;
case IDS_OPEN:
This->ProcessFileOpen();
return 0;
case IDS_MAX:
This->ProcessMax();
return 0;
case IDS_GRAPH:
This->ProcessGraph();
return 0;
case IDS_EXPORT:
This->ProcessExport();
return 0;
case IDS_HELP:
This->ProcessHelp();
return 0;
case IDS_EXIT:
SendMessageW(This->hMainWnd, WM_CLOSE, 0, 0);
return 0;
}
if (HWND(lParam) == 0 && HIWORD(wParam) == 0) // From context menu
switch (LOWORD(wParam))
{
case ID_SEARCHPARAMETERS_CHANGE:
This->SearchParamDialog();
return 0;
}
return DefWindowProcW(hWnd, msg, wParam, lParam);
} // WM_COMMAND
default: return DefWindowProcW(hWnd, msg, wParam, lParam);
} // msg
} // try
catch (const GeneralError& exc)
{
This->Catch(exc);
}
catch (const std::bad_alloc& exc)
{
This->CatchBadAlloc(exc);
}
return 0;
}
INT_PTR CALLBACK Access::OptionsDlgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static StaticThis This{};
try
{
switch (uMsg)
{
case WM_INITDIALOG:
This.ExtractFromWM_INITDIALOG(lParam);
This->OptionsDlgInit(hWnd);
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDC_CHECK:
This->OptionsDlgCommandCheck(hWnd);
return TRUE;
case IDOK:
This->OptionsDlgCommandOK(hWnd);
return TRUE;
case IDCANCEL:
EndDialog(hWnd, 1);
return TRUE;
default: return FALSE;
}
default: return FALSE;
}
}
catch (const GeneralError& exc)
{
This->Catch(exc);
return TRUE;
}
catch (const std::bad_alloc& exc)
{
This->CatchBadAlloc(exc);
return TRUE;
}
}
INT_PTR CALLBACK Access::HelpDlgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static StaticThis This{};
try
{
switch (uMsg)
{
case WM_INITDIALOG:
This.ExtractFromWM_INITDIALOG(lParam);
This->HelpDlgInit(hWnd);
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
case IDCANCEL:
EndDialog(hWnd, 1);
return TRUE;
default:
return FALSE;
}
default: return FALSE;
}
}
catch (const GeneralError& exc)
{
This->Catch(exc);
return TRUE;
}
catch (const std::bad_alloc& exc)
{
This->CatchBadAlloc(exc);
return TRUE;
}
}
void Access::InitApp()
{
// Check objects created in the constructor
if (hWaitCursor == NULL) Throw(1010);
if (hTopLevelMenu == NULL) Throw(1020);
if (hContextMenu == NULL) Throw(1030);
// Register main window class
wchar_t szClassNameBuffer[] = L"Perimeter_MainWnd_Class";
WNDCLASSEXW wcx{};
wcx.cbSize = sizeof(WNDCLASSEXW);
wcx.style = CS_OWNDC;
wcx.lpfnWndProc = MainWndProc;
wcx.cbClsExtra = 0;
wcx.cbWndExtra = sizeof(Access*); // store "this"
wcx.hInstance = hInst;
wcx.hIcon = HICON(LoadImageW(
hInst, MAKEINTRESOURCEW(IDI_ICON32), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR));
wcx.hCursor = HCURSOR(LoadImageW(
hInst, MAKEINTRESOURCEW(IDC_MYCURSOR), IMAGE_CURSOR, 0, 0, LR_DEFAULTCOLOR));
wcx.hbrBackground = NULL;
wcx.lpszMenuName = NULL;
wcx.lpszClassName = szClassNameBuffer;
wcx.hIconSm = NULL;
if (!RegisterClassExW(&wcx)) Throw(1040);
// Create main window
hMainWnd = CreateWindowExW(
0,
szClassNameBuffer,
NULL,
WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
CW_USEDEFAULT,
CW_USEDEFAULT,
100, 100,
NULL,
NULL,
hInst,
this);
if (hMainWnd == NULL) Throw(1050);
// Set a timer
if (SetTimer(hMainWnd, 1, 1000, NULL) == 0) Throw(1060);
// Display main window
ResizeWnd(nCmdShow);
}
void Access::CreateToolBar(bool fListStyle)
{
if (hToolBarWnd != NULL)
{
if (DestroyWindow(hToolBarWnd))
hToolBarWnd = NULL;
else Throw(1070);
}
INITCOMMONCONTROLSEX icex{};
icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
icex.dwICC = ICC_BAR_CLASSES;
if (!InitCommonControlsEx(&icex)) Throw(1080, NoCommCtl);
DWORD dwStyle{
WS_CHILD | TBSTYLE_WRAPABLE | CCS_NODIVIDER |
TBSTYLE_TOOLTIPS | CCS_NORESIZE |
CCS_LEFT | CCS_VERT | TBSTYLE_FLAT };
if (fListStyle) dwStyle |= TBSTYLE_LIST;
hToolBarWnd = CreateWindowExW(
0,
TOOLBARCLASSNAMEW,
NULL,
dwStyle,
0,0,0,0,
hMainWnd,
HMENU(ID_TOOLBAR),
hInst,
NULL);
if (hToolBarWnd == NULL) Throw(1090);
SendMessageW(hToolBarWnd, TB_BUTTONSTRUCTSIZE, WPARAM(sizeof(TBBUTTON)), 0);
if (SendMessageW(hToolBarWnd, TB_SETBITMAPSIZE, 0, MAKELONG(24, 24)) == 0)
{
Throw(1100);
}
TBADDBITMAP tbab{};
tbab.hInst = hInst;
tbab.nID = IDR_TOOLBAR;
if (SendMessageW(
hToolBarWnd, TB_ADDBITMAP,
WPARAM(uNumOfButtons), LPARAM(&tbab)) == -1)
{
Throw(1110);
}
TBBUTTON tbb[uNumOfButtons]{};
tbb[0].fsState = TBSTATE_ENABLED;
tbb[0].fsStyle = TBSTYLE_BUTTON;
tbb[0].dwData = 0;
tbb[6] = tbb[5] = tbb[4] = tbb[3] = tbb[2] = tbb[1] = tbb[0];
tbb[3].fsStyle = TBSTYLE_CHECK;
auto load_button = [=, &tbb](int index, int str_id, unsigned where)
{
tbb[index].iBitmap = index;
tbb[index].idCommand = str_id;
LoadString(str_id);
if ((tbb[index].iString = SendMessageW(
hToolBarWnd, TB_ADDSTRING,
WPARAM(NULL), LPARAM(TextBuffer()))) == -1)
{
Throw(where);
}
};
load_button(0, IDS_NEW, 1120);
load_button(1, IDS_OPEN, 1130);
load_button(2, IDS_MAX, 1140);
load_button(3, IDS_GRAPH, 1150);
load_button(4, IDS_EXPORT, 1160);
load_button(5, IDS_HELP,1170);
load_button(6, IDS_EXIT, 1180);
if (SendMessageW(hToolBarWnd, TB_ADDBUTTONS, uNumOfButtons, LPARAM(&tbb)) == 0)
{
Throw(1190);
}
RECT unused{};
SendMessageW(
hToolBarWnd, TB_SETROWS, MAKEWPARAM(uNumOfButtons, TRUE), LPARAM(&unused));
UpdateButtons();
}
void Access::ResizeWnd(int nCmdShow)
{
// Calculate main window size based off system metrics
auto fIsIconic{ IsIconic(hMainWnd) == TRUE };
if (fIsIconic)
if (OpenIcon(hMainWnd) == 0) Throw(1200);
auto
uScreenWidth{ GetSystemMetrics(SM_CXSCREEN) },
uScreenHeight{ GetSystemMetrics(SM_CYSCREEN) };
if (uScreenWidth == 0 || uScreenHeight == 0) Throw(1210);
RECT WorkAreaRect{};
if (!SystemParametersInfoW(SPI_GETWORKAREA, 0, PVOID(&WorkAreaRect), 0)) Throw(1220);
int
uWorkAreaWidth{ WorkAreaRect.right - WorkAreaRect.left },
uWorkAreaHeight{ WorkAreaRect.bottom - WorkAreaRect.top },
uWorkAreaLeft{ WorkAreaRect.left },
uWorkAreaTop{ WorkAreaRect.top };
auto xFactor{ 0.85 }, yFactor{ 0.85 }; // factors should be <= 1
auto
uMainWndWidthBase{ std::min(uScreenWidth, uWorkAreaWidth) },
uMainWndHeightBase{ std::min(uScreenHeight, uWorkAreaHeight) },
uMainWndWidth{ int(uMainWndWidthBase * xFactor) },
uMainWndHeight{ int(uMainWndHeightBase * yFactor) },
uMainWndLeft{ uWorkAreaLeft + std::min(
20, int(0.5 * (1.0 - xFactor) * uMainWndWidthBase)) },
uMainWndTop{ uWorkAreaTop + std::min(
20, int(0.5 * (1.0 - yFactor) * uMainWndHeightBase)) };
// Create toolbar
CreateToolBar(false); // Try full-size buttons
if (!TestWndSize(uMainWndWidth, uMainWndHeight, uMainWndLeft, uMainWndTop))
{
// Resolution too low for full-size buttons, try list-style buttons
CreateToolBar(true);
if (!TestWndSize(uMainWndWidth, uMainWndHeight, uMainWndLeft, uMainWndTop))
{
Throw(1230, ScrnRes); // Resolution too low even for list-style buttons
}
}
ShowWindow(hMainWnd, nCmdShow);
ShowWindow(hToolBarWnd, SW_SHOW);
InvalidateRgn(hMainWnd, NULL, TRUE);
if (fIsIconic)
if (CloseWindow(hMainWnd) == 0) Throw(1240);
}
void Access::LoadString(int uStrID, int uBufferID)
{
auto result = ::LoadStringW(hInst, uStrID, TextBuffer(uBufferID), uTextBufferSize);
assert(result != 0);
// double null-terminate
TextBuffer(uBufferID)[wcslen(TextBuffer(uBufferID)) + 1] = 0;
}
void Access::LoadEmptyString(int uBufferID)
{
TextBuffer(uBufferID)[0] = TextBuffer(uBufferID)[1] = 0;
}
bool Access::TestWndSize(
int uMainWndWidth, int uMainWndHeight, int uMainWndLeft, int uMainWndTop)
{
// Determine whether the proposed window size is large enough,
// and adjust the client area to make it square
RECT rcWnd{}, rcClient{};
if (GetWindowRect(hMainWnd, &rcWnd) == 0 || GetClientRect(hMainWnd, &rcClient) == 0)
{
Throw(1250);
}
int
uButtonSize{ int(SendMessageW(hToolBarWnd, TB_GETBUTTONSIZE, 0, 0)) },
uButtonWidth{ LOWORD(uButtonSize) },
uButtonHeight{ HIWORD(uButtonSize) },
uMinWndWidth{ GetSystemMetrics(SM_CXMIN) },
uMinWndHeight{ GetSystemMetrics(SM_CYMIN) },
uNonClientWidth{ rcWnd.right - rcWnd.left - rcClient.right + rcClient.left },
uNonClientHeight{ rcWnd.bottom - rcWnd.top - rcClient.bottom + rcClient.top };
constexpr auto uDrawingAreaThreshold{ 30 };
if (uMinWndWidth == 0 || uMinWndHeight == 0) Throw(1260);
auto
NewDrawingAreaWidth{ uMainWndWidth - uButtonWidth - uNonClientWidth },
NewDrawingAreaHeight{ uMainWndHeight - uNonClientHeight },
iDelta{ NewDrawingAreaWidth - NewDrawingAreaHeight };
if (NewDrawingAreaWidth <= uDrawingAreaThreshold ||
NewDrawingAreaHeight <= uDrawingAreaThreshold)
{
Throw(1270, ScrnRes);
}
if (iDelta < 0)
{
NewDrawingAreaHeight += iDelta;
uMainWndHeight += iDelta;
}
else
{
NewDrawingAreaWidth -= iDelta;
uMainWndWidth -= iDelta;
}
if (uMainWndWidth < uMinWndWidth || uMainWndHeight < uMinWndHeight)
{
Throw(1280, ScrnRes);
}
if (NewDrawingAreaHeight - uNumOfButtons * uButtonHeight >= 0)
{
if (MoveWindow(
hMainWnd,
uMainWndLeft, uMainWndTop,
uMainWndWidth, uMainWndHeight,
TRUE) == 0)
Throw(1290);
if (MoveWindow(
hToolBarWnd,
0, 0,
uButtonWidth, NewDrawingAreaHeight,
FALSE) == 0)
Throw(1300);
uToolBarWidth = uButtonWidth;
RECT cli_rect{};
GetClientRect(hMainWnd, &cli_rect);
uDrawingAreaWidth = cli_rect.right - cli_rect.left - uToolBarWidth;
uDrawingAreaHeight = cli_rect.bottom - cli_rect.top;
return true;
}
else
{
uDrawingAreaWidth = 0;
uDrawingAreaHeight = 0;
return false;
}
}
void Access::UpdateTitle(int uMouseX, int uMouseY)
{
// Update main window title in different modes
LoadString(IDS_APPNAME, 0);
double dAppX{}, dAppY{};
if (fGraph) // "Graph" mode
{
LoadString(IDS_GRAPHTITLE, 0);
swprintf_s(
TextBuffer(1), uTextBufferSize, L" : : %s (%u)",
TextBuffer(0), uNumSegments);
}
else
if (fDrawEffPerimeter) // "Maximum" mode
{
swprintf_s(TextBuffer(1), uTextBufferSize, L" : : max P(Z) = %lf", dPFmax);
}
else // Default mode
if (fFileIsOpen) // Add file name
{
if (ClientToApp(uMouseX, uMouseY, dAppX, dAppY)) // Add cursor position
swprintf_s(
TextBuffer(1), uTextBufferSize,
L"%s - %s (%u) (%.0f, %.0f)",
szFileTitle,
TextBuffer(0),
CP.num_vertices(),
dAppX, dAppY);
else
swprintf_s(
TextBuffer(1), uTextBufferSize,
L"%s - %s (%u)",
szFileTitle,
TextBuffer(0),
CP.num_vertices());
}
else
{
if (ClientToApp(uMouseX, uMouseY, dAppX, dAppY))
swprintf_s(
TextBuffer(1), uTextBufferSize,
L"%s (%u) (%.0f, %.0f)",
TextBuffer(0),
CP.num_vertices(),
dAppX, dAppY);
else
swprintf_s(
TextBuffer(1), uTextBufferSize,
L"%s (%u)",
TextBuffer(0),
CP.num_vertices());
}
if (SetWindowTextW(hMainWnd, TextBuffer(1)) == 0) Throw(1310);
}
void Access::TimerTick()
{
if (fFatalErrorOccured) return;
POINT Mouse{};
if (GetCursorPos(&Mouse) == 0) Throw(1320);
if (ScreenToClient(hMainWnd, &Mouse) == 0) Throw(1330);
UpdateTitle(Mouse.x, Mouse.y);
}
bool Access::ClientToApp(int iClientX, int iClientY, double& dAppX, double& dAppY) const
{
dAppX = dDrawingAreaSizeApp * double(iClientX - uToolBarWidth - uDrawingAreaMargin)
/ (uDrawingAreaWidth - 2 * uDrawingAreaMargin - 1);
dAppY = dDrawingAreaSizeApp *
(1.0 - (double(iClientY - uDrawingAreaMargin ) /
(uDrawingAreaHeight - 2 * uDrawingAreaMargin - 1)));
return (dAppX >= 0.0 && dAppX <= dDrawingAreaSizeApp &&
dAppY >= 0.0 && dAppY <= dDrawingAreaSizeApp);
}
bool Access::AppToClient (double dAppX, double dAppY, int& iClientX, int& iClientY) const
{
iClientX = uToolBarWidth + uDrawingAreaMargin +
int(0.5 + dAppX * (uDrawingAreaWidth - 2 * uDrawingAreaMargin - 1) / dDrawingAreaSizeApp);
iClientY = uDrawingAreaHeight - uDrawingAreaMargin - 1 -
int(0.5 + (uDrawingAreaHeight - 2 * uDrawingAreaMargin - 1) * dAppY / dDrawingAreaSizeApp);
return (dAppX >= 0 && dAppX <= dDrawingAreaSizeApp &&
dAppY >= 0 && dAppY <= dDrawingAreaSizeApp);
}
void Access::RedrawWnd(GeneralError* external_err_ptr)
{
constexpr COLORREF
CLR_BACKGROUND{ RGB(255, 255, 255) },
CLR_BORDER{ RGB(207, 207, 207) },
CLR_POLYGON{ RGB(220, 220, 230) },
CLR_POLYBORDER{ RGB(100, 100, 200) },
CLR_AXES{ RGB(120, 120, 220) },
CLR_GRAPH{ RGB(80, 80, 180) };
constexpr auto uCircleSize{ 2 };
DContext dc{ hMainWnd, external_err_ptr };
// Paint background
dc.Select(CreateSolidBrush(CLR_BACKGROUND));
RECT DrawingArea{};
DrawingArea.left = uToolBarWidth;
DrawingArea.top = 0;
DrawingArea.right = uDrawingAreaWidth + uToolBarWidth;
DrawingArea.bottom = uDrawingAreaHeight;
dc.FillRect(&DrawingArea);
// Draw gridlines
dc.Select(CreatePen(PS_DOT, 1, CLR_BORDER));
int iClientX{}, iClientY{};
for (auto uIndex = 0; uIndex <= 10; ++uIndex)
if (fGraph && uIndex != 0 && uIndex != 10)
continue;
else
{
auto dApp{ uIndex * dDrawingAreaSizeApp / 10.0 };
AppToClient(dApp, 0.0, iClientX, iClientY);
dc.MoveTo(iClientX, iClientY);
AppToClient(dApp, dDrawingAreaSizeApp, iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
AppToClient(0.0, dApp, iClientX, iClientY);
dc.MoveTo(iClientX, iClientY);
AppToClient(dDrawingAreaSizeApp, dApp, iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
}
if (!fGraph) // Not in "Graph" mode
{
dc.Select(CreateSolidBrush(CLR_POLYGON));
dc.Select(CreatePen(PS_SOLID, 1, CLR_POLYBORDER));
auto upoints{ CP.num_vertices() };
if (upoints > 0)
{
// Draw polygon
std::vector<POINT> points{ upoints };
auto uCount{ 0 };
for (convex_polygon::const_iterator iter{ CP.begin() };
iter != CP.end(); ++iter)
{
convex_polygon::point point{ *iter };
AppToClient(point.x, point.y, iClientX, iClientY);
points[uCount].x = iClientX;
points[uCount++].y = iClientY;
}
if (upoints > 1) dc.Polygon(points.data(), upoints);
// Draw bubbles at polygon's vertices
dc.Select(CreateSolidBrush(CLR_BACKGROUND));
POINT prev{};
prev.x = prev.y = 2 * uDrawingAreaHeight;
for (auto uIndex = 0; uIndex < uCount; ++uIndex)
{
if (sqrt(
pow(double(abs(prev.x - points[uIndex].x)), 2.0) +
pow(double(abs(prev.y - points[uIndex].y)), 2.0)) >
3.0 * uCircleSize ||
upoints < 40)
{
dc.Ellipse(
points[uIndex].x - uCircleSize,
points[uIndex].y - uCircleSize,
points[uIndex].x + uCircleSize + 1,
points[uIndex].y + uCircleSize + 1);
prev = points[uIndex];
}
}
if (fDrawEffPerimeter) // In "Maximum" mode draw the curve delivering the maximum
{
bool fDone{ false };
AppToClient(P.x, P.y, iClientX, iClientY);
dc.MoveTo(iClientX, iClientY);
if (fArc) // The curve is a circular arc
{
convex_polygon::point R{ 1.0, 0.0 };
auto uNumSteps{ uDrawingAreaHeight / 4 + 1 };
auto
dRad{ (P - Center).abs() },
dStartAng{ Center.angle(Center + R, P) },
dFinishAng{ Center.angle(Center + R, Q) },
dDelta{ dFinishAng - dStartAng };
if (dDelta < 0.0) dDelta += 2.0 * pi;
if (dDelta * uDrawingAreaHeight > 1.0)
{
dDelta /= uNumSteps;
while (uNumSteps > 0)
{
dStartAng += dDelta;
R.x = Center.x + dRad * cos(dStartAng);
R.y = Center.y + dRad * sin(dStartAng);
AppToClient(R.x, R.y, iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
--uNumSteps;
}
fDone = true;
}
}
if (!fDone) // The curve is a straight line (or nearly so)
{
AppToClient(Q.x, Q.y, iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
}
// Draw bubbles
AppToClient(P.x, P.y, iClientX, iClientY);
dc.Ellipse(
iClientX - uCircleSize, iClientY - uCircleSize,
iClientX + uCircleSize + 1, iClientY + uCircleSize + 1);
AppToClient(Q.x, Q.y, iClientX, iClientY);
dc.Ellipse(
iClientX - uCircleSize, iClientY - uCircleSize,
iClientX + uCircleSize + 1, iClientY + uCircleSize + 1);
}
}
}
else // "Graph" mode
{
auto
dLeft{ dDrawingAreaSizeApp * 0.1 },
dRight{ dDrawingAreaSizeApp * 0.9 },
dTop{ dDrawingAreaSizeApp * 0.8 },
dBottom{ dDrawingAreaSizeApp * 0.2 },
dArrowLength{ dDrawingAreaSizeApp * 0.02 },
dArrowWidth{ dDrawingAreaSizeApp * 0.005 },
xMargin{ dDrawingAreaSizeApp * 0.04 },
dFont{ dDrawingAreaSizeApp * 0.05 };
int iLeft{}, iRight{}, iTop{}, iBottom{};
AppToClient(dLeft, dBottom, iLeft, iBottom);
AppToClient(dRight, dTop, iRight, iTop);
if (iLeft == iRight) return;
if (iBottom == iTop) return;
if (Graph.maximum() == 0.0) return;
// Draw axes with arrows
dc.Select(CreatePen(PS_SOLID, 1, CLR_AXES));
dc.MoveTo(iRight, iBottom);
dc.LineTo(iLeft, iBottom);
dc.LineTo(iLeft, iTop);
dc.MoveTo(iRight, iBottom);
AppToClient(
dRight - dArrowLength, dBottom - dArrowWidth,
iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
dc.MoveTo(iRight, iBottom);
AppToClient(
dRight - dArrowLength, dBottom + dArrowWidth,
iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
dc.MoveTo(iLeft, iTop);
AppToClient(
dLeft - dArrowWidth, dTop - dArrowLength,
iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
dc.MoveTo(iLeft, iTop);
AppToClient(
dLeft + dArrowWidth, dTop - dArrowLength,
iClientX, iClientY);
dc.LineTo(iClientX, iClientY);
// Draw P=F(w,r)/w line
dc.Select(CreatePen(PS_SOLID, 1, CLR_GRAPH));
auto dGain{ 0.0 }, dGraphFactor(Graph.maximum());
auto fReallyShowLine{ false };
if (fShowFOverWLine)
{
dGain = search::f(dVelocityRatio, dRadiusOfDetection) / dVelocityRatio;
if (dGain <= dGraphFactor)
{
fReallyShowLine = true;
}
else
if (dGain/50.0 < dGraphFactor)
{
fReallyShowLine = true;
dGraphFactor = dGain;
}
dGain = std::min(dGain, 1000.0 * dDrawingAreaSizeApp * dDrawingAreaSizeApp);
}
if (fReallyShowLine)
{
dGraphFactor = std::max(dGraphFactor, 1.1 * dGain);
auto iGain{ int(dGain * (iBottom - iTop) / dGraphFactor) };
dc.MoveTo (iLeft, iBottom - iGain);
dc.LineTo (iRight, iBottom - iGain);
}
// Draw graph
dc.MoveTo(iLeft, iBottom);
AppToClient(dRight - xMargin, 0, iClientX, iClientY);
if (iClientX == iLeft) return;
for (int iIndex = iLeft; iIndex <= iClientX; ++iIndex)
{
auto dZ{ (iIndex - iLeft) * Graph.area() / (iClientX - iLeft) };
if (dZ < 0.0) dZ = 0.0;
if (dZ > Graph.area()) dZ = Graph.area();
auto dPF{ ((iBottom - iTop) / dGraphFactor) * Graph(dZ) };
dc.LineTo(iIndex, iBottom - int(dPF));
}
// Draw graph bubbles
if (fBubbles)
for (unsigned uIndex = 0; uIndex <= Graph.num_segments (); ++uIndex)
{
auto iZ{
int(iLeft + (iClientX - iLeft) * Graph.a(uIndex) / Graph.area()) };
auto dPF{ Graph(Graph.a(uIndex)) };
auto iPF{ int(dPF * (iBottom - iTop) / dGraphFactor) };
dc.Ellipse(
iZ - uCircleSize, iBottom - iPF - uCircleSize,
iZ + uCircleSize + 1, iBottom - iPF + uCircleSize + 1);
}
// Output text
AppToClient(0.0, dFont, iClientX, iClientY);
auto iFont{ iClientY };
AppToClient(0.0, 0.0, iClientX, iClientY);
iFont = iClientY - iFont;
if (iFont < 8) return;
auto
hFont{ CreateFontW(
iFont, 0, 0, 0, 400, 0, 0, 0, ANSI_CHARSET,
OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY, VARIABLE_PITCH,
L"Segoe UI") },
hFontItalic{ CreateFontW(
iFont, 0, 0, 0, 400, TRUE, 0, 0, ANSI_CHARSET,
OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY, VARIABLE_PITCH,
L"Segoe UI") },
hFontSpace{ CreateFontW(
std::max(iFont / 6, 3), 0, 0, 0, 400, 0, 0, 0, ANSI_CHARSET,
OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY, VARIABLE_PITCH,
L"Segoe UI") };
if (hFont == NULL || hFontItalic == NULL) return;
dc.Select(hFontItalic, false);
AppToClient(dRight, dBottom - 2.5 * dArrowWidth, iClientX, iClientY);