'21.07'

CPP/Windows/Control/Dialog.cpp

@@ -0,0 +1,414 @@
+// Windows/Control/Dialog.cpp
+
+#include "StdAfx.h"
+
+// #include "../../Windows/DLL.h"
+
+#ifndef _UNICODE
+#include "../../Common/StringConvert.h"
+#endif
+
+#include "Dialog.h"
+
+extern HINSTANCE g_hInstance;
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+namespace NControl {
+
+static INT_PTR APIENTRY DialogProcedure(HWND dialogHWND, UINT message, WPARAM wParam, LPARAM lParam)
+{
+  CWindow tempDialog(dialogHWND);
+  if (message == WM_INITDIALOG)
+    tempDialog.SetUserDataLongPtr(lParam);
+  CDialog *dialog = (CDialog *)(tempDialog.GetUserDataLongPtr());
+  if (dialog == NULL)
+    return FALSE;
+  if (message == WM_INITDIALOG)
+    dialog->Attach(dialogHWND);
+
+  /* MSDN: The dialog box procedure should return
+       TRUE  - if it processed the message
+       FALSE - if it did not process the message
+     If the dialog box procedure returns FALSE,
+     the dialog manager performs the default dialog operation in response to the message.
+  */
+
+  try { return BoolToBOOL(dialog->OnMessage(message, wParam, lParam)); }
+  catch(...) { return TRUE; }
+}
+
+bool CDialog::OnMessage(UINT message, WPARAM wParam, LPARAM lParam)
+{
+  switch (message)
+  {
+    case WM_INITDIALOG: return OnInit();
+    case WM_COMMAND: return OnCommand(wParam, lParam);
+    case WM_NOTIFY: return OnNotify((UINT)wParam, (LPNMHDR) lParam);
+    case WM_TIMER: return OnTimer(wParam, lParam);
+    case WM_SIZE: return OnSize(wParam, LOWORD(lParam), HIWORD(lParam));
+    case WM_DESTROY: return OnDestroy();
+    case WM_HELP: OnHelp(); return true;
+    /*
+        OnHelp(
+          #ifdef UNDER_CE
+          (void *)
+          #else
+          (LPHELPINFO)
+          #endif
+          lParam);
+        return true;
+    */
+    default: return false;
+  }
+}
+
+bool CDialog::OnCommand(WPARAM wParam, LPARAM lParam)
+{
+  return OnCommand(HIWORD(wParam), LOWORD(wParam), lParam);
+}
+
+bool CDialog::OnCommand(int code, int itemID, LPARAM lParam)
+{
+  if (code == BN_CLICKED)
+    return OnButtonClicked(itemID, (HWND)lParam);
+  return false;
+}
+
+bool CDialog::OnButtonClicked(int buttonID, HWND /* buttonHWND */)
+{
+  switch (buttonID)
+  {
+    case IDOK: OnOK(); break;
+    case IDCANCEL: OnCancel(); break;
+    case IDCLOSE: OnClose(); break;
+    case IDHELP: OnHelp(); break;
+    default: return false;
+  }
+  return true;
+}
+
+
+static bool GetWorkAreaRect(RECT *rect, HWND hwnd)
+{
+  if (hwnd)
+  {
+    #ifndef UNDER_CE
+    /* MonitorFromWindow() is supported in Win2000+
+       MonitorFromWindow() : retrieves a handle to the display monitor that has the
+         largest area of intersection with the bounding rectangle of a specified window.
+       dwFlags: Determines the function's return value if the window does not intersect any display monitor.
+         MONITOR_DEFAULTTONEAREST : Returns display that is nearest to the window.
+         MONITOR_DEFAULTTONULL    : Returns NULL.
+         MONITOR_DEFAULTTOPRIMARY : Returns the primary display monitor.
+    */
+    const HMONITOR hmon = MonitorFromWindow(hwnd, MONITOR_DEFAULTTOPRIMARY);
+    if (hmon)
+    {
+      MONITORINFO mi;
+      memset(&mi, 0, sizeof(mi));
+      mi.cbSize = sizeof(mi);
+      if (GetMonitorInfoA(hmon, &mi))
+      {
+        *rect = mi.rcWork;
+        return true;
+      }
+    }
+    #endif
+  }
+
+  /* Retrieves the size of the work area on the primary display monitor.
+     The work area is the portion of the screen not obscured
+     by the system taskbar or by application desktop toolbars.
+     Any DPI virtualization mode of the caller has no effect on this output. */
+
+  return BOOLToBool(::SystemParametersInfo(SPI_GETWORKAREA, 0, rect, 0));
+}
+
+
+bool IsDialogSizeOK(int xSize, int ySize, HWND hwnd)
+{
+  // it returns for system font. Real font uses another values
+  const LONG v = GetDialogBaseUnits();
+  const int x = LOWORD(v);
+  const int y = HIWORD(v);
+
+  RECT rect;
+  GetWorkAreaRect(&rect, hwnd);
+  const int wx = RECT_SIZE_X(rect);
+  const int wy = RECT_SIZE_Y(rect);
+  return
+    xSize / 4 * x <= wx &&
+    ySize / 8 * y <= wy;
+}
+
+bool CDialog::GetMargins(int margin, int &x, int &y)
+{
+  x = margin;
+  y = margin;
+  RECT rect;
+  rect.left = 0;
+  rect.top = 0;
+  rect.right = margin;
+  rect.bottom = margin;
+  if (!MapRect(&rect))
+    return false;
+  x = rect.right - rect.left;
+  y = rect.bottom - rect.top;
+  return true;
+}
+
+int CDialog::Units_To_Pixels_X(int units)
+{
+  RECT rect;
+  rect.left = 0;
+  rect.top = 0;
+  rect.right = units;
+  rect.bottom = units;
+  if (!MapRect(&rect))
+    return units * 3 / 2;
+  return rect.right - rect.left;
+}
+
+bool CDialog::GetItemSizes(int id, int &x, int &y)
+{
+  RECT rect;
+  if (!::GetWindowRect(GetItem(id), &rect))
+    return false;
+  x = RECT_SIZE_X(rect);
+  y = RECT_SIZE_Y(rect);
+  return true;
+}
+
+void CDialog::GetClientRectOfItem(int id, RECT &rect)
+{
+  ::GetWindowRect(GetItem(id), &rect);
+  ScreenToClient(&rect);
+}
+
+bool CDialog::MoveItem(int id, int x, int y, int width, int height, bool repaint)
+{
+  return BOOLToBool(::MoveWindow(GetItem(id), x, y, width, height, BoolToBOOL(repaint)));
+}
+
+
+/*
+typedef BOOL (WINAPI * Func_DwmGetWindowAttribute)(
+    HWND hwnd, DWORD dwAttribute, PVOID pvAttribute, DWORD cbAttribute);
+
+static bool GetWindowsRect_DWM(HWND hwnd, RECT *rect)
+{
+  // dll load and free is too slow : 300 calls in second.
+  NDLL::CLibrary dll;
+  if (!dll.Load(FTEXT("dwmapi.dll")))
+    return false;
+  Func_DwmGetWindowAttribute f = (Func_DwmGetWindowAttribute)dll.GetProc("DwmGetWindowAttribute" );
+  if (f)
+  {
+    #define MY__DWMWA_EXTENDED_FRAME_BOUNDS 9
+    // 30000 per second
+    RECT r;
+    if (f(hwnd, MY__DWMWA_EXTENDED_FRAME_BOUNDS, &r, sizeof(RECT)) == S_OK)
+    {
+      *rect = r;
+      return true;
+    }
+  }
+  return false;
+}
+*/
+
+
+static bool IsRect_Small_Inside_Big(const RECT &sm, const RECT &big)
+{
+  return sm.left   >= big.left
+      && sm.right  <= big.right
+      && sm.top    >= big.top
+      && sm.bottom <= big.bottom;
+}
+
+
+static bool AreRectsOverlapped(const RECT &r1, const RECT &r2)
+{
+  return r1.left   < r2.right
+      && r1.right  > r2.left
+      && r1.top    < r2.bottom
+      && r1.bottom > r2.top;
+}
+
+
+static bool AreRectsEqual(const RECT &r1, const RECT &r2)
+{
+  return r1.left   == r2.left
+      && r1.right  == r2.right
+      && r1.top    == r2.top
+      && r1.bottom == r2.bottom;
+}
+
+
+void CDialog::NormalizeSize(bool fullNormalize)
+{
+  RECT workRect;
+  if (!GetWorkAreaRect(&workRect, *this))
+    return;
+  RECT rect;
+  if (!GetWindowRect(&rect))
+    return;
+  int xs = RECT_SIZE_X(rect);
+  int ys = RECT_SIZE_Y(rect);
+
+  // we don't want to change size using workRect, if window is outside of WorkArea
+  if (!AreRectsOverlapped(rect, workRect))
+    return;
+
+  /* here rect and workRect are overlapped, but it can be false
+     overlapping of small shadow when window in another display. */
+
+  const int xsW = RECT_SIZE_X(workRect);
+  const int ysW = RECT_SIZE_Y(workRect);
+  if (xs <= xsW && ys <= ysW)
+    return; // size of window is OK
+  if (fullNormalize)
+  {
+    Show(SW_SHOWMAXIMIZED);
+    return;
+  }
+  int x = workRect.left;
+  int y = workRect.top;
+  if (xs < xsW)  x += (xsW - xs) / 2;  else xs = xsW;
+  if (ys < ysW)  y += (ysW - ys) / 2;  else ys = ysW;
+  Move(x, y, xs, ys, true);
+}
+
+
+void CDialog::NormalizePosition()
+{
+  RECT workRect;
+  if (!GetWorkAreaRect(&workRect, *this))
+    return;
+
+  RECT rect2 = workRect;
+  bool useWorkArea = true;
+  const HWND parentHWND = GetParent();
+
+  if (parentHWND)
+  {
+    RECT workRectParent;
+    if (!GetWorkAreaRect(&workRectParent, parentHWND))
+      return;
+
+    // if windows are in different monitors, we use only workArea of current window
+
+    if (AreRectsEqual(workRectParent, workRect))
+    {
+      // RECT rect3; if (GetWindowsRect_DWM(parentHWND, &rect3)) {}
+      CWindow wnd(parentHWND);
+      if (wnd.GetWindowRect(&rect2))
+      {
+        // it's same monitor. So we try to use parentHWND rect.
+        /* we don't want to change position, if parent window is not inside work area.
+           In Win10 : parent window rect is 8 pixels larger for each corner than window size for shadow.
+           In maximize mode : window is outside of workRect.
+           if parent window is inside workRect, we will use parent window instead of workRect */
+        if (IsRect_Small_Inside_Big(rect2, workRect))
+          useWorkArea = false;
+      }
+    }
+  }
+
+  RECT rect;
+  if (!GetWindowRect(&rect))
+    return;
+
+  if (useWorkArea)
+  {
+    // we don't want to move window, if it's already inside.
+    if (IsRect_Small_Inside_Big(rect, workRect))
+      return;
+    // we don't want to move window, if it's outside of workArea
+    if (!AreRectsOverlapped(rect, workRect))
+      return;
+    rect2 = workRect;
+  }
+
+  {
+    const int xs = RECT_SIZE_X(rect);
+    const int ys = RECT_SIZE_Y(rect);
+    const int xs2 = RECT_SIZE_X(rect2);
+    const int ys2 = RECT_SIZE_Y(rect2);
+    // we don't want to change position if parent is smaller.
+    if (xs <= xs2 && ys <= ys2)
+    {
+      const int x = rect2.left + (xs2 - xs) / 2;
+      const int y = rect2.top  + (ys2 - ys) / 2;
+
+      if (x != rect.left || y != rect.top)
+        Move(x, y, xs, ys, true);
+      // SetWindowPos(*this, HWND_TOP, x, y, 0, 0, SWP_NOSIZE);
+      return;
+    }
+  }
+}
+
+
+
+bool CModelessDialog::Create(LPCTSTR templateName, HWND parentWindow)
+{
+  HWND aHWND = CreateDialogParam(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
+  if (aHWND == 0)
+    return false;
+  Attach(aHWND);
+  return true;
+}
+
+INT_PTR CModalDialog::Create(LPCTSTR templateName, HWND parentWindow)
+{
+  return DialogBoxParam(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
+}
+
+#ifndef _UNICODE
+
+bool CModelessDialog::Create(LPCWSTR templateName, HWND parentWindow)
+{
+  HWND aHWND;
+  if (g_IsNT)
+    aHWND = CreateDialogParamW(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
+  else
+  {
+    AString name;
+    LPCSTR templateNameA;
+    if (IS_INTRESOURCE(templateName))
+      templateNameA = (LPCSTR)templateName;
+    else
+    {
+      name = GetSystemString(templateName);
+      templateNameA = name;
+    }
+    aHWND = CreateDialogParamA(g_hInstance, templateNameA, parentWindow, DialogProcedure, (LPARAM)this);
+  }
+  if (aHWND == 0)
+    return false;
+  Attach(aHWND);
+  return true;
+}
+
+INT_PTR CModalDialog::Create(LPCWSTR templateName, HWND parentWindow)
+{
+  if (g_IsNT)
+    return DialogBoxParamW(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
+  AString name;
+  LPCSTR templateNameA;
+  if (IS_INTRESOURCE(templateName))
+    templateNameA = (LPCSTR)templateName;
+  else
+  {
+    name = GetSystemString(templateName);
+    templateNameA = name;
+  }
+  return DialogBoxParamA(g_hInstance, templateNameA, parentWindow, DialogProcedure, (LPARAM)this);
+}
+#endif
+
+}}