rainmeter-studio/Library/Dialog.cpp

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/*
Copyright (C) 2011 Birunthan Mohanathas
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "StdAfx.h"
#include "Dialog.h"
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HWND Dialog::c_ActiveDialogWindow = nullptr;
HWND Dialog::c_ActiveTabWindow = nullptr;
/*
** Constructor.
**
*/
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Dialog::Dialog(HWND wnd) :
m_Window(wnd),
m_Font(),
m_FontBold()
{
NONCLIENTMETRICS ncm;
ncm.cbSize = sizeof(NONCLIENTMETRICS) - sizeof(ncm.iPaddedBorderWidth);
SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0);
m_Font = CreateFontIndirect(&ncm.lfMenuFont);
ncm.lfMenuFont.lfWeight = FW_BOLD;
ncm.lfMenuFont.lfHeight -= 2;
m_FontBold = CreateFontIndirect(&ncm.lfMenuFont);
}
/*
** Destructor.
**
*/
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Dialog::~Dialog()
{
DeleteObject(m_Font);
DeleteObject(m_FontBold);
}
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INT_PTR Dialog::OnActivate(WPARAM wParam, LPARAM lParam)
{
if (wParam)
{
c_ActiveDialogWindow = m_Window;
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c_ActiveTabWindow = GetActiveWindow();
}
else
{
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c_ActiveDialogWindow = c_ActiveTabWindow = nullptr;
}
return FALSE;
}
/*
** Sets dialog font to UI font.
**
*/
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void Dialog::SetDialogFont(HWND window)
{
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EnumChildWindows(window, SetFontProc, (WPARAM)m_Font);
}
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BOOL CALLBACK Dialog::SetFontProc(HWND hWnd, LPARAM lParam)
{
SendMessage(hWnd, WM_SETFONT, (WPARAM)lParam, 0);
return TRUE;
}
/*
** Subclass button control to draw arrow on the right.
**
*/
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void Dialog::SetMenuButton(HWND button)
{
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SetWindowSubclass(button, MenuButtonProc, 0, 0);
}
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LRESULT CALLBACK Dialog::MenuButtonProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
{
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LRESULT result = DefSubclassProc(hWnd, uMsg, wParam, lParam);
switch (uMsg)
{
case WM_PAINT:
{
// Draw arrow on top of the button
RECT buttonRect;
GetClientRect(hWnd, &buttonRect);
int arrowX = buttonRect.right - 18;
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int arrowY = buttonRect.top + 4;
RECT arrowRect = { arrowX, arrowY, arrowX + 14, arrowY + 14 };
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HDC dc = GetDC(hWnd);
const WORD DFCS_MENUARROWDOWN = 0x0010; // Undocumented
DWORD drawFlags = DFCS_TRANSPARENT | DFCS_MENUARROWDOWN | (IsWindowEnabled(hWnd) ? 0 : DFCS_INACTIVE);
DrawFrameControl(dc, &arrowRect, DFC_MENU, drawFlags);
ReleaseDC(hWnd, dc);
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}
break;
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case WM_GETTEXT:
{
// Append 3 spaces to the button text to move text to the left so
// that it looks better with BS_CENTER.
WCHAR* str = (WCHAR*)lParam + result;
str[0] = str[1] = str[2] = L' ';
str[3] = '\0';
result += 3;
}
break;
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case WM_GETTEXTLENGTH:
result += 3;
break;
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case WM_NCDESTROY:
RemoveWindowSubclass(hWnd, MenuButtonProc, uIdSubclass);
break;
}
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return result;
}
/*
** Constructor.
**
*/
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Dialog::Tab::Tab(HINSTANCE instance, HWND owner, WORD tabId, DLGPROC tabProc) :
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m_Window(CreateDialog(instance, MAKEINTRESOURCE(tabId), owner, tabProc)),
m_Initialized(false)
{
EnableThemeDialogTexture(m_Window, ETDT_ENABLETAB);
}
/*
** Destructor.
**
*/
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Dialog::Tab::~Tab()
{
DestroyWindow(m_Window);
}
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/*
** Activates the tab.
**
*/
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void Dialog::Tab::Activate()
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{
c_ActiveTabWindow = m_Window;
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if (!m_Initialized)
{
Initialize();
}
EnableWindow(m_Window, TRUE);
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BringWindowToTop(m_Window);
}