BOOL Win32PopupDialog::ShowMessageBox(HWND hwnd)
{
BOOL fSuccess = FALSE;
HDC hdc = GetDC(hwnd);
if (hdc)
{
NONCLIENTMETRICSW ncm = { sizeof(ncm) };
if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, 0, &ncm, 0)) {
DialogTemplate tmp;
std::wstring ws;
int controlCount = 2; // at minimum, static label and OK button
if(this->showCancelButton) controlCount++;
if(this->showInputText) controlCount++;
int labelHeight = 14;
int width = 300;
int height = 90;
int margin = 10;
int buttonWidth = 50;
int buttonHeight = 14;
int inputHeight = 14;
if(! this->showInputText)
{
height -= (inputHeight + margin);
}
// Write out the extended dialog template header
tmp.Write<WORD>(1); // dialog version
tmp.Write<WORD>(0xFFFF); // extended dialog template
tmp.Write<DWORD>(0); // help ID
tmp.Write<DWORD>(0); // extended style
tmp.Write<DWORD>(WS_CAPTION | DS_FIXEDSYS | DS_SETFONT | DS_MODALFRAME); // DS_FIXEDSYS removes the close decoration
tmp.Write<WORD>(controlCount); // number of controls
tmp.Write<WORD>(32); // X
tmp.Write<WORD>(32); // Y
tmp.Write<WORD>(width); // width
tmp.Write<WORD>(height); // height
tmp.WriteString(L""); // no menu
tmp.WriteString(L""); // default dialog class
//tmp.WriteString(pszTitle); // title
tmp.WriteString(ws.assign(title.begin(), title.end()).c_str()); // title
// Next comes the font description.
// See text for discussion of fancy formula.
if (ncm.lfMessageFont.lfHeight < 0)
{
ncm.lfMessageFont.lfHeight = -MulDiv(ncm.lfMessageFont.lfHeight, 72, GetDeviceCaps(hdc, LOGPIXELSY));
}
tmp.Write<WORD>((WORD)ncm.lfMessageFont.lfHeight); // point
tmp.Write<WORD>((WORD)ncm.lfMessageFont.lfWeight); // weight
tmp.Write<BYTE>(ncm.lfMessageFont.lfItalic); // Italic
tmp.Write<BYTE>(ncm.lfMessageFont.lfCharSet); // CharSet
tmp.WriteString(ncm.lfMessageFont.lfFaceName);
// First control - static label
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE); // style
tmp.Write<WORD>(margin); // x
tmp.Write<WORD>(margin); // y
tmp.Write<WORD>(width - (2 * margin)); // width
tmp.Write<WORD>(labelHeight); // height
tmp.Write<DWORD>(-1); // control ID
tmp.Write<DWORD>(0x0082FFFF); // static
tmp.WriteString(ws.assign(message.begin(), message.end()).c_str()); // text
tmp.Write<WORD>(0); // no extra data
// Second control - the OK button.
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE | WS_GROUP | WS_TABSTOP | BS_DEFPUSHBUTTON); // style
tmp.Write<WORD>(width - margin - buttonWidth); // x
tmp.Write<WORD>(height - margin - buttonHeight); // y
tmp.Write<WORD>(buttonWidth); // width
tmp.Write<WORD>(buttonHeight); // height
tmp.Write<DWORD>(IDOK); // control ID
tmp.Write<DWORD>(0x0080FFFF); // button class atom
tmp.WriteString(L"OK"); // text
tmp.Write<WORD>(0); // no extra data
if(this->showCancelButton)
{
// The Cancel button
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE | WS_GROUP | WS_TABSTOP | BS_DEFPUSHBUTTON); // style
tmp.Write<WORD>(width - 2 * margin - 2 * buttonWidth); // x
tmp.Write<WORD>(height - margin - buttonHeight); // y
tmp.Write<WORD>(buttonWidth); // width
tmp.Write<WORD>(buttonHeight); // height
tmp.Write<DWORD>(IDCANCEL); // control ID
tmp.Write<DWORD>(0x0080FFFF); // button class atom
tmp.WriteString(L"Cancel"); // text
tmp.Write<WORD>(0); // no extra data
}
if(this->showInputText)
{
// The input field
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(ES_LEFT | WS_BORDER | WS_TABSTOP | WS_CHILD | WS_VISIBLE); // style
tmp.Write<WORD>(margin); // x
tmp.Write<WORD>(margin + labelHeight + margin); // y
tmp.Write<WORD>(width - (2 * margin)); // width
tmp.Write<WORD>(inputHeight); // height
tmp.Write<DWORD>(ID_INPUT_FIELD); // control ID
tmp.Write<DWORD>(0x0081FFFF); // edit class atom
tmp.WriteString(ws.assign(inputText.begin(), inputText.end()).c_str()); // text
tmp.Write<WORD>(0); // no extra data
}
// Template is ready - go display it.
fSuccess = DialogBoxIndirect(GetModuleHandle(NULL), tmp.Template(), hwnd, &Win32PopupDialog::Callback) >= 0;
}
ReleaseDC(NULL, hdc); // fixed 11 May
}
return fSuccess;
}
BOOL Win32PopupDialog::ShowMessageBox(HWND hwnd)
{
BOOL fSuccess = FALSE;
HDC hdc = GetDC(hwnd);
if (hdc)
{
NONCLIENTMETRICSW nonClientMetrics = { sizeof(NONCLIENTMETRICSW) };
if (SystemParametersInfoW(
SPI_GETNONCLIENTMETRICS, 0, &nonClientMetrics, 0))
{
DialogTemplate tmp;
std::wstring wideTitle(::UTF8ToWide(title));
std::wstring wideInputText;
if (this->showInputText)
wideInputText.assign(::UTF8ToWide(inputText));
int controlCount = 2; // at minimum, static label and OK button
if (this->showCancelButton)
controlCount++;
if (this->showInputText)
controlCount++;
int messageLines = 0;
int newlines = CountMatches(message, "\n");
int tabs = CountMatches(message, "\t");
int spaces = CountMatches(message, " ");
if (newlines == 0 && tabs == 0 && spaces == 0)
{
std::string tempMessage(message);
if (tempMessage.length() != 0)
{
int insertAt = 60;
int count = 0;
std::string::iterator it = tempMessage.begin();
for (; it < tempMessage.end(); it++)
{
count++;
if (count == 60)
{
count = 0;
message.insert(insertAt, "\n");
insertAt += 60;
}
}
}
}
std::wstring wideMessage(::UTF8ToWide(message));
messageLines = message.length() / 60;
messageLines += ((int) ceil((double)tabs / 14));
messageLines += newlines;
if (tabs == 0 || newlines == 0)
messageLines++;
int labelHeight = 14;
int width = 200;
int margin = 10;
int buttonWidth = 50;
int buttonHeight = 14;
int inputHeight = 14;
int messageHeight = (messageLines * 12) + (messageLines * margin);
int height = messageHeight + 56;
if (!this->showInputText)
{
height -= (inputHeight + margin);
}
// Write out the extended dialog template header
tmp.Write<WORD>(1); // dialog version
tmp.Write<WORD>(0xFFFF); // extended dialog template
tmp.Write<DWORD>(0); // help ID
tmp.Write<DWORD>(0); // extended style
tmp.Write<DWORD>(WS_CAPTION | WS_BORDER | DS_ABSALIGN | DS_SETFONT);
tmp.Write<WORD>(controlCount); // number of controls
tmp.Write<WORD>(32); // X
tmp.Write<WORD>(32); // Y
tmp.Write<WORD>(width); // width
tmp.Write<WORD>(height); // height
tmp.WriteString(L""); // no menu
tmp.WriteString(L""); // default dialog class
//tmp.WriteString(pszTitle); // title
tmp.WriteString(wideTitle.c_str()); // title
// Next comes the font description.
// See text for discussion of fancy formula.
if (nonClientMetrics.lfMessageFont.lfHeight < 0)
{
int dpi = GetDeviceCaps(hdc, LOGPIXELSY);
nonClientMetrics.lfMessageFont.lfHeight =
-MulDiv(nonClientMetrics.lfMessageFont.lfHeight, 72, dpi);
}
tmp.Write<WORD>((WORD)nonClientMetrics.lfMessageFont.lfHeight); // point
tmp.Write<WORD>((WORD)nonClientMetrics.lfMessageFont.lfWeight); // weight
tmp.Write<BYTE>(nonClientMetrics.lfMessageFont.lfItalic); // Italic
tmp.Write<BYTE>(nonClientMetrics.lfMessageFont.lfCharSet); // CharSet
tmp.WriteString(nonClientMetrics.lfMessageFont.lfFaceName);
// First control - static label
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE | SS_LEFT); // style
tmp.Write<WORD>(margin); // x
tmp.Write<WORD>(margin); // y
tmp.Write<WORD>(width - (2 * margin)); // width
//tmp.Write<WORD>(labelHeight); // height
tmp.Write<WORD>(messageHeight); // height
tmp.Write<DWORD>(-1); // control ID
tmp.Write<DWORD>(0x0082FFFF); // static
//tmp.Write<DWORD>(SS_LEFT);
tmp.WriteString(wideMessage.c_str()); // text
tmp.Write<WORD>(0); // no extra data
// Second control - the OK button.
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE | WS_GROUP | WS_TABSTOP | BS_DEFPUSHBUTTON); // style
tmp.Write<WORD>(width - margin - buttonWidth); // x
tmp.Write<WORD>(height - margin - buttonHeight); // y
tmp.Write<WORD>(buttonWidth); // width
tmp.Write<WORD>(buttonHeight); // height
tmp.Write<DWORD>(IDCANCEL); // control ID
tmp.Write<DWORD>(0x0080FFFF); // button class atom
tmp.WriteString(L"Cancel"); // text
tmp.Write<WORD>(0); // no extra data
if (this->showCancelButton)
{
// The Cancel button
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(WS_CHILD | WS_VISIBLE | WS_GROUP | WS_TABSTOP | BS_DEFPUSHBUTTON); // style
tmp.Write<WORD>(width - 2 * margin - 2 * buttonWidth); // x
tmp.Write<WORD>(height - margin - buttonHeight); // y
tmp.Write<WORD>(buttonWidth); // width
tmp.Write<WORD>(buttonHeight); // height
tmp.Write<DWORD>(IDOK); // control ID
tmp.Write<DWORD>(0x0080FFFF); // button class atom
tmp.WriteString(L"OK"); // text
tmp.Write<WORD>(0); // no extra data
}
if (this->showInputText)
{
// The input field
tmp.AlignToDword();
tmp.Write<DWORD>(0); // help id
tmp.Write<DWORD>(0); // window extended style
tmp.Write<DWORD>(ES_LEFT | WS_BORDER | WS_TABSTOP | WS_CHILD | WS_VISIBLE); // style
tmp.Write<WORD>(margin); // x
tmp.Write<WORD>(margin + labelHeight + margin); // y
tmp.Write<WORD>(width - (2 * margin)); // width
tmp.Write<WORD>(inputHeight); // height
tmp.Write<DWORD>(ID_INPUT_FIELD); // control ID
tmp.Write<DWORD>(0x0081FFFF); // edit class atom
tmp.WriteString(wideInputText.c_str()); // text
tmp.Write<WORD>(0); // no extra data
}
// Template is ready - go display it.
fSuccess = DialogBoxIndirect(
GetModuleHandle(NULL),
tmp.Template(),
hwnd,
&Win32PopupDialog::Callback) >= 0;
}
ReleaseDC(NULL, hdc); // fixed 11 May
}
return fSuccess;
}