mfc-self-painting control (Cradio article)

Sample diagram

I. Public Documents

Like this one, it's not written. (mfc-self-painting control (CButton article))

Second, Radio

Header file

#pragma once #include "Public.h" #include <vector>/////////////////////////////////////////////////////////// #define DEF_TEXT_FRAME_COLOR RGB (255,255,255)//default color #define DEF_TEXT_COLOR RGB (10,10,10)// Default color #define TOOLTIP_ID 100//Hint ID/////////////////////////////////////////////////////////////////////////
	/class Cpngradio:public CButton {Public:cpngradio ();

Virtual ~cpngradio ();
	Public://Initialize background picture, and select picture void Init (UINT nbkimg, UINT nckimg);
	Gets the currently selected state BOOL getchecked () {return m_bchecked;}
	Sets the selected state void setchecked (BOOL bchecked = TRUE);
	Set background color void Setbackcolor (Colorref crback) {m_crback = Crback;}
	Set font size and type void setfonttype (int fontsize, CString fonttype); Set Font color bool SetTextColor (COLORREF crtextcolor, colorref crtextframecolor = Def_text_frame_color, bool BShowFrame = Fals
	e);
Add all radio to a set of static void AddGroup (Std::vector<cpngradio*> vcradio); protected:virtual void DrawItem (lpdrawitemstRuct lpdrawitemstruct);
	virtual void Presubclasswindow ();
	Image *imagefromresource (hinstance hinstance, UINT uimgid, LPCTSTR lptype);
	void Drawtextstring (CDC * PDC, LPCTSTR pszstring, Colorref crtext, Colorref crframe, lprect lprect);
	void Drawtextstring (CDC * PDC, LPCTSTR pszstring, Colorref crtext, colorref crframe, int nxpos, int nypos);
	void Setgroup (std::vector<cpngradio*> vcradio);
void Paintparent ();
	Protected:bool m_bchecked;
	Image* M_imagecheck;
	Image* M_imageback;
	COLORREF M_crback;
	COLORREF M_crtextcolor;
	CFont M_font;
	BOOL M_bshowtextframe;
	COLORREF M_crtextframecolor;
	BOOL M_bsetback;

	Std::vector<cpngradio*> M_vcradio;
	afx_msg BOOL onclicked ();
	afx_msg hbrush Ctlcolor (cdc* PDC, UINT nCtlColor);

	afx_msg BOOL OnEraseBkgnd (cdc* PDC); Declare_message_map () declare_dynamic (Cpngradio)};

CPP file

#include "stdafx.h" #include "PngRadio.h" implement_dynamic (Cpngradio, CButton) begin_message_map (Cpngradio, CButton) On_wm_create () on_control_reflect_ex (bn_clicked, onclicked) on_wm_erasebkgnd () On_wm_ctlcolor_reflect () END_MESSAGE _map ()//////////////////////////////////////////////////////////////////////////CPngRadio::CPngRadio () {m_
	bchecked = FALSE;
	M_crtextcolor = RGB (0, 0, 0);
	M_crback = RGB (255, 255, 255);
	M_bsetback = FALSE;
	M_bshowtextframe = FALSE;
	M_crtextcolor = Def_text_color;
M_crtextframecolor = Def_text_frame_color;
	} cpngradio::~cpngradio () {} void Cpngradio::P Resubclasswindow () {modifystyle (0, Bs_ownerdraw);
CButton::P Resubclasswindow (); } void Cpngradio::init (UINT nbkimg, UINT nckimg) {M_imagecheck = Imagefromresource (AfxGetResourceHandle (), NCKIMG, L "PN
	G ");

	M_imageback = Imagefromresource (AfxGetResourceHandle (), nbkimg, L "PNG");
	if (M_imageback!= NULL) {m_bsetback = TRUE;
	} CRect Rcbutton; Rcbutton = CRect (0, 0, M_imagecheck->getwidth ()/4, m_imagecheck->getheight ()); SetWindowPos (NULL, 0, 0, rcbutton.width (), Rcbutton.height (), Swp_noactivate |
Swp_nomove);
	} hbrush Cpngradio::ctlcolor (cdc* PDC, UINT nctlcolor) {pdc->setbkmode (transparent);
Return (Hbrush) getstockobject (Null_brush);
	} void Cpngradio::setfonttype (int fontsize, CString fonttype) {logfont lf;
	memset (&LF, 0, sizeof (LOGFONT));
	Lf.lfheight = fontsize;
	_tcsncpy_s (Lf.lffacename, Lf_facesize, Fonttype, Fonttype.getlength ()); VERIFY (M_font.
CreateFontIndirect (&LF));
	} void Cpngradio::D rawitem (lpdrawitemstruct lpdis) {CDC dc; dc.
	Attach (LPDIS->HDC);

	CRect Rcitem (Lpdis->rcitem);
		if (m_bsetback) {Graphics graph (LPDIS->HDC); Graph. DrawImage (M_imageback, RECTF (0, 0, rcitem.width (), Rcitem.height ()), Rcitem.left, Rcitem.top, Rcitem.width (),
		Rcitem.height (), unitpixel); Graph.
	RELEASEHDC (LPDIS->HDC);
		} if (M_imagecheck!= NULL) {CRect Rcbutton;
		int imgwidth = M_imagecheck->getwidth ()/4; INT ImgHeight = M_imagecheck->getheight ();
		if (m_bchecked && iswindowenabled ()) Rcbutton = CRect (0, 0, ImgWidth, imgheight); else if (m_bchecked &&!
		IsWindowEnabled ()) Rcbutton = CRect (2 * imgwidth, 0, 3 * imgwidth, imgheight);
		else if (!m_bchecked && iswindowenabled ()) Rcbutton = CRect (imgwidth, 0, 2 * imgwidth, imgheight);

		else Rcbutton = CRect (3 * imgwidth, 0, 4 * imgwidth, imgheight); Graphics Graph (DC.
		GETSAFEHDC ()); Graph.
		DrawImage (m_imagecheck, 0, 0, Rcbutton.left, Rcbutton.top, Rcbutton.width (), Rcbutton.height (), unitpixel); Graph. RELEASEHDC (DC.
		GETSAFEHDC ());
		painting Fonts CString sztext;
		GetWindowText (Sztext); dc.
		SetBkMode (Transparent); cfont* Oldfont = DC. SelectObject (M_font. Getsafehandle ()?

		&m_font:getfont ());
		Drawtextstring (&DC, Sztext, M_crtextcolor, M_crtextframecolor, ImgWidth + 4, 0); dc.
	SelectObject (Oldfont); } DC.
Detach (); //Set color bool Cpngradio::settextcolor (COLORREF crtextcolor, COLORREF CrteXtframecolor, bool bshowframe) {m_crtextcolor = Crtextcolor;
	M_bshowtextframe = Bshowframe;

	M_crtextframecolor = Crtextframecolor;
	if (GetSafeHwnd ()) Invalidate (FALSE);
return true; Image * Cpngradio::imagefromresource (hinstance hinstance, UINT uimgid, LPCTSTR lptype) {hrsrc Hresinfo =:: FindResourc
	E (hinstance, Makeintresource (Uimgid), lptype); if (Hresinfo = null) return null;
	Fail DWORD dwsize; dwsize = Sizeofresource (hinstance, hresinfo);
	Get resource size (bytes) Hglobal hresdata;
	Hresdata =:: LoadResource (HINSTANCE, hresinfo); if (Hresdata = null) return null;
	Fail Hglobal Hmem;
	Hmem =:: GlobalAlloc (Gmem_moveable, dwsize);
		if (Hmem = = NULL) {:: FreeResource (Hresdata);
	return NULL;
	} lpvoid Lpresdata, Lpmem;
	Lpresdata =:: Lockresource (Hresdata);
	Lpmem =:: GlobalLock (HMEM); :: CopyMemory (Lpmem, Lpresdata, dwsize);
	Copy Memory:: GlobalUnlock (HMEM); :: FreeResource (Hresdata);
	Free memory IStream *pstream;
	HRESULT hr; hr =:: CrEatestreamonhglobal (Hmem, TRUE, &pstream);//create Stream object Image *pimage = NULL;
	if (SUCCEEDED (HR)) {pimage = Image::fromstream (pstream);//get GDI + pointer Pstream->release ();
	}:: GlobalFree (HMEM);
return pimage;
	BOOL cpngradio::onclicked () {setchecked ();
return FALSE; } void Cpngradio::setchecked (BOOL bchecked) {if (bchecked) {if (!m_vcradio.empty ()) {for (cpngradio* E:m_vcrad
			IO) {e->setchecked (FALSE);
	}} m_bchecked = bchecked;
	Paintparent ();
Invalidate (FALSE);
	BOOL cpngradio::onerasebkgnd (cdc* pDC) {return TRUE;} void Cpngradio::P aintparent () {CRect rect;
	GetWindowRect (&rect);
	GetParent ()->screentoclient (&rect);
GetParent ()->invalidaterect (&rect);
	}//Art font void Cpngradio::D rawtextstring (CDC * PDC, LPCTSTR pszstring, Colorref crtext, Colorref crframe, lprect lprect) {
	Variable definition int nstringlength = lstrlen (pszstring);
	int nxexcursion[8] = {1,1,1,0,-1,-1,-1,0}; int nyexcursion[8] = {-1,0,1,1,1,0,-1,-1};
	CRect Rcdraw;
		if (m_bshowtextframe) {//Painting Border Pdc->settextcolor (Crframe);
			for (int i = 0; i < sizeof (nxexcursion)/sizeof (nxexcursion[0)); ++i) {rcdraw.copyrect (lprect);
			Rcdraw.offsetrect (Nxexcursion[i], nyexcursion[i]); Pdc->drawtext (pszstring, Nstringlength, &rcdraw, Dt_vcenter | Dt_center | Dt_singleline |
		Dt_end_ellipsis);
	///Painting Font rcdraw.copyrect (lprect);
	Pdc->settextcolor (Crtext); Pdc->drawtext (pszstring, Nstringlength, &rcdraw, Dt_vcenter | Dt_center | Dt_singleline |
	Dt_end_ellipsis);
Return }//Art font void Cpngradio::D rawtextstring (CDC * PDC, LPCTSTR pszstring, Colorref crtext, colorref crframe, int nxpos, int n
		YPos) {if (Nypos = = 0) {LogFont lf; if (M_font. Getsafehandle ()) {M_font.
		Getlogfont (&AMP;LF);
		else {getfont ()->getlogfont (&AMP;LF);
	} Nypos = (M_imagecheck->getheight ()-ABS (Lf.lfheight))/2;
	}//variable definition int nstringlength = lstrlen (pszstring); int nxexcursion[8] = {1,1,1,0,-1,-1,-1,0};

	int nyexcursion[8] = { -1,0,1,1,1,0,-1,-1};
		if (m_bshowtextframe) {//Painting Border Pdc->settextcolor (Crframe); for (int i = 0; i < sizeof (nxexcursion)/sizeof (nxexcursion[0)); i++) {pdc->textout (Nxpos + nxexcursion[i], n
		YPos + nyexcursion[i], pszstring, nstringlength);
	///Painting Font pdc->settextcolor (Crtext);
	Pdc->textout (Nxpos, Nypos, pszstring, nstringlength);
Return } void Cpngradio::addgroup (Std::vector<cpngradio*> vcradio) {for (cpngradio* E:vcradio) {E->setgroup (vcRa
	DIO); } void Cpngradio::setgroup (Std::vector<cpngradio*> vcradio) {m_vcradio = Vcradio;}

Call method

	Cpngradio M_radio1;
	Cpngradio M_radio2;
	Cpngradio M_radio3;
	--------------------
	DDX_Control (PDX, Idc_radio1, m_radio1);
	DDX_Control (PDX, Idc_radio2, M_radio2);
	DDX_Control (PDX, Idc_radio3, M_radio3);
	--------------------
	M_radio1. Init (Idb_png_crback, idb_png_check);
	M_radio2. Init (Idb_png_crback, idb_png_check);
	M_radio3. Init (Idb_png_crback, idb_png_check);
	std::vector<cpngradio*> VC;
	Vc.push_back (&m_radio1);
	Vc.push_back (&m_radio2);
	Vc.push_back (&m_radio3);
	Cpngradio::addgroup (VC);
	M_radio1. Setchecked ();