xcolourpopup.cpp

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// XColourPopup.cpp : implementation file
//
// Written by Chris Maunder ([e-mail])
// Extended by Alexander Bischofberger ([e-mail])
// Copyright (c) 1998.
//
// Updated 30 May 1998 to allow any number of colours, and to
//                     make the appearance closer to Office 97.
//                     Also added "Default" text area.         (CJM)
//
//         13 June 1998 Fixed change of focus bug (CJM)
//         30 June 1998 Fixed bug caused by focus bug fix (D'oh!!)
//                      Solution suggested by Paul Wilkerson.
//
// ColourPopup is a helper class for the colour picker control
// CColourPicker. Check out the header file or the accompanying
// HTML doc file for details.
//
// This code may be used in compiled form in any way you desire. This
// file may be redistributed unmodified by any means PROVIDING it is
// not sold for profit without the authors written consent, and
// providing that this notice and the authors name is included.
//
// This file is provided "as is" with no expressed or implied warranty.
// The author accepts no liability if it causes any damage to you or your
// computer whatsoever. It's free, so don't hassle me about it.
//
// Expect bugs.
//
// Please use and enjoy. Please let me know of any bugs/mods/improvements
// that you have found/implemented and I will fix/incorporate them into this
// file.

#include "stdafx.h"
#include <math.h>
#include "XColourPicker.h"
#include "XColourPopup.h"
#include "windowsx.h"		// for GET_X_LPARAM

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define DIVIDER_LINE_ROW	9
#define CUSTOM_BUTTON_ROW	10
#define FIRST_CUSTOM_ROW	11


///////////////////////////////////////////////////////////////////////////////
// The following builtin color table is extracted from the complete list of
// X11 colors that are supported by Internet Explorer and Netscape Navigator.
// To see the complete list of colors and color names, read the article by
// Robert Hess at
//        http://www.microsoft.com/workshop/design/color/colorname.asp

ColorTableEntry CXColourPopup::m_crColors[] =
{
	// row 0
	RGB(128,   0,  64), _T("Light Maroon"),        -1,
	RGB(139,   0,   0), _T("Dark Red"),            -1,
	RGB(255,   0,   0), _T("Red"),                 -1,
	RGB(255,   0, 128), _T("Deep Pink"),           -1,
	RGB(255,   0, 255), _T("Magenta"),             -1,
	RGB(255, 128, 192), _T("Pink"),                -1,
	RGB(255, 128, 255), _T("Light Pink"),          -1,
	RGB(255, 208, 232), _T("Very Light Pink"),     -1,

	// row 1
	RGB(255, 140,   0), _T("Dark Orange"),         -1,
	RGB(255, 165,   0), _T("Orange"),              -1,
	RGB(255, 128, 128), _T("Light Salmon"),        -1,
	RGB(255, 224, 160), _T("Light Orange"),        -1,
	RGB(255, 215,   0), _T("Gold"),                -1,
	RGB(255, 255,   0), _T("Yellow"),              -1,
	RGB(255, 255, 128), _T("Desert Yellow"),       -1,
	RGB(255, 255, 184), _T("Pale Yellow"),         -1,

	// row 2
	RGB(  0,  64,   0), _T("Dark Green"),          -1,
	RGB(  0,  64,  64), _T("Medium Green"),        -1,
	RGB(  0, 128,   0), _T("Green"),               -1,
	RGB(  0, 128,  64), _T("Dark Teal"),           -1,
	RGB(128, 128,   0), _T("Olive"),               -1,
	RGB(  0, 128, 128), _T("Teal"),                -1,
	RGB( 64, 128, 128), _T("Turquoise"),           -1,
	RGB(  0, 255,  64), _T("Medium Spring Green"), -1,

	// row 3
	RGB(128, 255,   0), _T("Mint Green"),          -1,
	RGB(  0, 255,   0), _T("Lime"),                -1,
	RGB(  0, 255, 128), _T("Spring Green"),        -1,
	RGB(152, 251, 152), _T("Pale Green"),          -1,
	RGB(127, 255, 212), _T("Aquamarine"),          -1,
	RGB(192, 220, 192), _T("Very Pale Green"),     -1,
	RGB( 64,   0,  64), _T("Deep Purple"),         -1,
	RGB(128,   0, 128), _T("Purple"),              -1,

	// row 4
	RGB( 64,   0, 128), _T("Deep Violet"),         -1,
	RGB(  0,   0,  64), _T("Midnight Blue"),       -1,
	RGB(  0,   0, 160), _T("Dark Blue"),           -1,
	RGB(  0,   0, 128), _T("Navy"),                -1,
	RGB(128,   0, 255), _T("Violet"),              -1,
	RGB(  0,   0, 255), _T("Blue"),                -1,
	RGB(  0,  64, 128), _T("Medium Blue"),         -1,
	RGB(  0, 128, 255), _T("Light Sky Blue"),      -1,

	// row 5
	RGB(100, 149, 237), _T("Cornflower Blue"),     -1,
	RGB(128, 128, 192), _T("Sky Blue"),            -1,
	RGB(  0, 128, 192), _T("Dark Cyan"),           -1,
	RGB(128, 128, 255), _T("Medium Slate Blue"),   -1,
	RGB(128, 255, 255), _T("Light Blue"),          -1,
	RGB(  0, 255, 255), _T("Cyan"),                -1,
	RGB(176, 224, 230), _T("Powder Blue"),         -1,
	RGB(224, 255, 255), _T("Light Cyan"),          -1,

	// row 6
	RGB(  0,   0,   0), _T("Black"),               -1,
	RGB(128, 128, 128), _T("Gray"),                -1,
	RGB(152, 152, 152), _T("Gray 40%"),            -1,
	RGB(192, 192, 192), _T("Silver"),              -1,
	RGB(211, 211, 211), _T("Light Gray"),          -1,
	RGB(245, 245, 220), _T("Beige"),               -1,
	RGB(255, 251, 240), _T("Floral White"),        -1,
	RGB(255, 255, 255), _T("White"),               -1,

	// row 7 - window system colors
	RGB(  0,   0,   0), _T("Window"),              COLOR_WINDOW,
	RGB(  0,   0,   0), _T("WindowText"),          COLOR_WINDOWTEXT,
	RGB(  0,   0,   0), _T("InfoBk"),              COLOR_INFOBK,
	RGB(  0,   0,   0), _T("InfoText"),            COLOR_INFOTEXT,
	RGB(  0,   0,   0), _T("ActiveCaption"),       COLOR_ACTIVECAPTION,
	RGB(  0,   0,   0), _T("CaptionText"),         COLOR_CAPTIONTEXT,
	RGB(  0,   0,   0), _T("InactiveCaption"),     COLOR_INACTIVECAPTION,
	RGB(  0,   0,   0), _T("InactiveCaptionText"), COLOR_INACTIVECAPTIONTEXT,

	// row 8 - window system colors, row #2
	RGB(  0,   0,   0), _T("BtnFace"),             COLOR_BTNFACE,
	RGB(  0,   0,   0), _T("BtnText"),             COLOR_BTNTEXT,
	RGB(  0,   0,   0), _T("BtnShadow"),           COLOR_BTNSHADOW,
	RGB(  0,   0,   0), _T("BtnHighlight"),        COLOR_BTNHIGHLIGHT,
	RGB(  0,   0,   0), _T("Highlight"),           COLOR_HIGHLIGHT,
	RGB(  0,   0,   0), _T("HighlightText"),       COLOR_HIGHLIGHTTEXT,
	RGB(  0,   0,   0), _T("3DLight"),             COLOR_3DLIGHT,
	RGB(  0,   0,   0), _T("Desktop"),             COLOR_DESKTOP,

	// row 9 - divider line
	RGB(192, 192, 192), _T("1"),                   -1,
	RGB(192, 192, 192), _T("2"),                   -1,
	RGB(192, 192, 192), _T("3"),                   -1,
	RGB(192, 192, 192), _T("4"),                   -1,
	RGB(192, 192, 192), _T("5"),                   -1,
	RGB(192, 192, 192), _T("6"),                   -1,
	RGB(192, 192, 192), _T("7"),                   -1,
	RGB(192, 192, 192), _T("8"),                   -1,

	// row 10 - custom button
	RGB(192, 192, 192), _T("9"),                   -1,
	RGB(192, 192, 192), _T("10"),                  -1,
	RGB(192, 192, 192), _T("11"),                  -1,
	RGB(192, 192, 192), _T("12"),                  -1,
	RGB(192, 192, 192), _T("13"),                  -1,
	RGB(192, 192, 192), _T("14"),                  -1,
	RGB(192, 192, 192), _T("15"),                  -1,
	RGB(192, 192, 192), _T("16"),                  -1,

	// custom colors
	// row 11
	(unsigned long)-1, _T("Custom color 1"),       -1,
	(unsigned long)-1, _T("Custom color 2"),       -1,
	(unsigned long)-1, _T("Custom color 3"),       -1,
	(unsigned long)-1, _T("Custom color 4"),       -1,
	(unsigned long)-1, _T("Custom color 5"),       -1,
	(unsigned long)-1, _T("Custom color 6"),       -1,
	(unsigned long)-1, _T("Custom color 7"),       -1,
	(unsigned long)-1, _T("Custom color 8"),       -1,

	// row 12
	(unsigned long)-1, _T("Custom color 9"),       -1,
	(unsigned long)-1, _T("Custom color 10"),      -1,
	(unsigned long)-1, _T("Custom color 11"),      -1,
	(unsigned long)-1, _T("Custom color 12"),      -1,
	(unsigned long)-1, _T("Custom color 13"),      -1,
	(unsigned long)-1, _T("Custom color 14"),      -1,
	(unsigned long)-1, _T("Custom color 15"),      -1,
	(unsigned long)-1, _T("Custom color 16"),      -1
};


/////////////////////////////////////////////////////////////////////////////
// CXColourPopup

BEGIN_MESSAGE_MAP(CXColourPopup, CWnd)
	//{{AFX_MSG_MAP(CXColourPopup)
	ON_WM_NCDESTROY()
	ON_WM_LBUTTONUP()
	ON_WM_PAINT()
	ON_WM_MOUSEMOVE()
	ON_WM_KEYDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

CXColourPopup::CXColourPopup()
{
	Init();
}

CXColourPopup::CXColourPopup(CWnd * pParentWnd,
						 CPoint p,
						 COLORREF crColor,
						 COLORREF * pCustomColors,
						 int nSelectedRow,
						 int nSelectedCol,
						 LPCTSTR szCustomText /* = NULL */)
{
	Init();

	m_nSelectedRow  = nSelectedRow;
	m_nSelectedCol  = nSelectedCol;
	m_crColor       = m_crInitialColor = crColor;
	m_pParent       = pParentWnd;

	int i;
	if (nSelectedRow == -1 || nSelectedCol == -1)
	{
		// no selection specified - look thru the color table for a match
		for (i = 0; i < m_nNumColors; i++)
		{
			if (m_crColors[i].crColor == crColor)
			{
				m_nSelectedRow = i / 8;
				m_nSelectedCol = i % 8;
				break;
			}
		}
	}

	if (pCustomColors)
	{
		m_pCustomColors = pCustomColors;

		for (i = 0; i < 16; i++)
		{
			m_crColors[FIRST_CUSTOM_ROW * 8 + i].crColor = m_pCustomColors[i];
		}
	}

	Create(p, crColor, pParentWnd, szCustomText);
}

void CXColourPopup::Init()
{
	m_nNumColors    = sizeof(m_crColors) / sizeof(ColorTableEntry);
	ASSERT(m_nNumColors == 104);
	m_nNumColumns   = 0;
	m_nNumRows      = 0;
	m_nBoxSize      = 18;
	m_nMargin       = ::GetSystemMetrics(SM_CXEDGE);
	m_nCurrentRow   = -1;
	m_nCurrentCol   = -1;
	m_nSelectedRow  = -1;
	m_nSelectedCol  = -1;
	m_crColor       = m_crInitialColor = RGB(255, 255, 255);
	m_pCustomColors = NULL;
	m_bShowCustom   = TRUE;
	m_strCustomText = _T("Custom...");
	m_pParent       = NULL;

	// Make sure the color square is at least 5 x 5;
	if (m_nBoxSize - 2 * m_nMargin - 2 < 5)
		m_nBoxSize = 5 + 2 * m_nMargin + 2;

	// set system colors
	for (int i = 0; i < m_nNumColors; i++)
		if (m_crColors[i].nSystemColor != -1)
			m_crColors[i].crColor = GetSysColor(m_crColors[i].nSystemColor);
}

CXColourPopup::~CXColourPopup()
{
	if (m_Font.GetSafeHandle())
		m_Font.DeleteObject();
}

///////////////////////////////////////////////////////////////////////////////
// Create
BOOL CXColourPopup::Create(CPoint p,
						 COLORREF crColor,
						 CWnd * pParentWnd,
						 LPCTSTR szCustomText /* = NULL */)
{
	ASSERT(pParentWnd && ::IsWindow(pParentWnd->GetSafeHwnd()));

	m_pParent  = pParentWnd;
	m_crColor  = m_crInitialColor = crColor;

	// Get the class name and create the window
	CString szClassName = AfxRegisterWndClass(
		CS_CLASSDC | CS_SAVEBITS | CS_HREDRAW | CS_VREDRAW,
		0, (HBRUSH)GetStockObject(LTGRAY_BRUSH), 0);

	if (!CWnd::CreateEx(0, szClassName, _T(""), WS_VISIBLE | WS_POPUP,
			p.x, p.y, 100, 100, // size updated soon
		pParentWnd->GetSafeHwnd(), 0, NULL))
	{
		return FALSE;
	}

	// Store the Custom text
	if (szCustomText != NULL)
		m_strCustomText = szCustomText;

	// Set the window size
	SetWindowSize();

	// Create the tooltips
	CreateToolTips();

	// Capture all mouse events for the life of this window
	SetCapture();

	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// PreTranslateMessage - for tooltips
BOOL CXColourPopup::PreTranslateMessage(MSG * pMsg)
{
	m_ToolTip.RelayEvent(pMsg);
	return CWnd::PreTranslateMessage(pMsg);
}

///////////////////////////////////////////////////////////////////////////////
// OnKeyDown - if an arrow key is pressed, then move the selection
void CXColourPopup::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	int row = m_nCurrentRow;
	int col = m_nCurrentCol;

	if (row == -1 || col == -1)
	{
		row = m_nSelectedRow;
		col = m_nSelectedCol;
	}

	if (nChar == VK_DOWN)
	{
		row++;
		if (row < 0)
		{
			row = 0;
			col = 0;
		}
		else if (row == DIVIDER_LINE_ROW)
		{
			row++;
		}
		else if (row >= m_nNumRows)
		{
			row = 0;
		}
		ChangeSelection(row, col);
	}

	if (nChar == VK_UP)
	{
		row--;
		if (row < 0)
		{
			row = m_nNumRows - 1;
		}
		else if (row == DIVIDER_LINE_ROW)
		{
			row--;
		}
		ChangeSelection(row, col);
	}

	if (nChar == VK_RIGHT)
	{
		if (col < 0)
		{
			row = 0;
			col = 0;
		}
		else if (col < m_nNumColumns - 1)
		{
			col++;
		}
		else
		{
			col = 0;
		}
		ChangeSelection(row, col);
	}

	if (nChar == VK_LEFT)
	{
		if (col < 0)
		{
			row = m_nNumRows - 1;
			col = m_nNumColumns - 1;
		}
		else if (col > 0)
		{
			col--;
		}
		else
		{
			col = m_nNumColumns - 1;