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path: root/support/dktools/Dk4WxColourView.cpt
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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2011-xxxx
SPDX-License-Identifier:	BSD-3-Clause


%%	header


#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif

#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif

#include <wx/wxprec.h>
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif

#ifndef	DK4WXAPPLICATIONHELPER_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "Dk4WxApplicationHelper.h"
#else
#include <dktools-4/Dk4WxApplicationHelper.h>
#endif
#endif

#if	wxCHECK_VERSION(3,0,0)

/**	Event generated if the colour was changed.
*/
wxDECLARE_EVENT(wxEVT_DK4_COLOUR_VIEW_EVENT, wxCommandEvent);

#else

/**	Event generated if the colour was changed.
*/
BEGIN_DECLARE_EVENT_TYPES()
DECLARE_EVENT_TYPE(wxEVT_DK4_COLOUR_VIEW_EVENT, -1)
END_DECLARE_EVENT_TYPES()

#endif

/**	Show color setting, show colour chooser on mouse click.
*/
class Dk4WxColourView : public wxControl
{

  /**	Declare class as dynamic.
  */
#if	wxCHECK_VERSION(3,0,0)
  wxDECLARE_DYNAMIC_CLASS(Dk4WxColourView);
#else
  DECLARE_DYNAMIC_CLASS(Dk4WxColourView)
#endif

  /**	Event table for control.
  */
#if	wxCHECK_VERSION(3,0,0)
  wxDECLARE_EVENT_TABLE();
#else
  DECLARE_EVENT_TABLE()
#endif

  protected:

    /**	Parent window.
    */
    wxWindow				*pParentWindow;

    /**	Application helper, used to position color chooser dialog.
    */
    Dk4WxApplicationHelper	*pHelper;

    /**	Class name, used in constructor and Create().
    */
    static wxChar const		 Dk4WxColourViewName[];

	/**	ID to use in generated events.
	*/
	wxWindowID				 m_wxid;

    /**	Height.
    */
    int						 w;

    /**	Width.
    */
    int						 h;

    /**	Red component of color to show.
    */
    int						 r;

    /**	Green component of color to show.
    */
    int						 g;

    /**	Blue component of color to show.
    */
    int						 b;

    /**	Previous x position of color chooser dialog.
    */
    int						 ccdx;

    /**	Previous y position of color chooser dialog.
    */
    int						 ccdy;

	/**	Previous x position of color palette dialog.
	*/
	int						 cpdx;

	/**	Previous x position of color palette dialog.
	*/
	int						 cpdy;

	/**	Activity flag, allow to choose a color.
	*/
	bool					 bActive;

	/**	Flag: Prefer platte over normal view.
	*/
	bool					 bPalettePreferred;

	/**	Flag: Set position for colour chooser.
	*/
	bool					 bPlaceColourChooser;

	/**	Flag: Show active/inactive state.
	*/
	bool					 bMarkActiveInactive;

	/**	Flag: Show colour chooser with a border.
	*/
	bool					 bWithBorder;

  protected:

	/**	Send event for changed colour.
	*/
	void
	SendColourViewEvent(void);

	/**	Place colour chooser dialog.
		@param	dlg	Dialog to place.
		@param	x	Saved x coordinate or -1.
		@param	y	Saved y coordinate or -1.
	*/
	void
	PlaceColourChooser(wxWindow & dlg, int x, int y);

	/**	Run the system colour chooser.
	*/
	void
	RunSystemColourChooser(void);

	/**	Run the palette based colour chooser.
	*/
	void
	RunPaletteColourChooser(void);

  public:
    
    /**	Default constructor.
    */
    Dk4WxColourView();

    /**	Constructor.
    	@param	pParent		Parent window.
		@param	wxid		Window ID.
		@param	appHelper	Application helper.
		@param	red	Red 	component of color to show.
		@param	green		Green component of color to show.
		@param	blue		Blue component of color to show.
		@param	pos			Object position.
		@param	size		Object minimum size.
		@param	style		Style for control.
		@param	name		Class name.
    */
    Dk4WxColourView(
      wxWindow					*pParent,
      wxWindowID				 wxid,
      Dk4WxApplicationHelper	*appHelper,
      int						 red,
      int						 green,
      int						 blue,
      wxPoint const &			 pos	= wxDefaultPosition,
      wxSize  const &			 size	= wxDefaultSize,
      long						 style	= wxBORDER_NONE,
      wxChar const				*name	= Dk4WxColourViewName
    );

    /**	Create object after using default constructor.
    	@param	pParent		Parent window.
		@param	wxid		Window ID.
		@param	appHelper	Application helper.
		@param	red	Red 	component of color to show.
		@param	green		Green component of color to show.
		@param	blue		Blue component of color to show.
		@param	pos			Object position.
		@param	size		Object minimum size.
		@param	style		Style for control.
		@param	name		Class name.
		@return	true on success, false on error.
    */
    bool
    Create(
      wxWindow					*pParent,
      wxWindowID				 wxid,
      Dk4WxApplicationHelper	*appHelper,
      int						 red	= 255,
      int						 green	= 255,
      int						 blue	= 255,
      wxPoint const &			 pos	= wxDefaultPosition,
      wxSize  const &			 size	= wxDefaultSize,
      long						 style	= wxBORDER_NONE,
      wxChar const				*name	= Dk4WxColourViewName
    );

    /**	Find minimum size.
    */
    wxSize DoGetBestSize() const;

    /**	Get red component of current color.
    	@return	Red.
    */
    int
    Red() const;

    /**	Get green component of current color.
    	@return	Green.
    */
    int
    Green() const;

    /**	Get blue component of current color.
    	@return	Blue.
    */
    int
    Blue() const;

    /**	Set new current color.
    	@param	red		Red.
		@param	green	Green.
		@param	blue	Blue.
    */
    void
    SetRGB(int red, int green, int blue);

	/**	Set activity flag.
	*/
	void
	SetActive(bool b);

	/**	Set palette as preferred method to choose a color.
	*/
	void
	SetPalettePreferred(bool b = true);

	/**	Set whether to place the colour chooser near the colour view.
		@param	b	New flag value.
	*/
	void
	SetPlaceColourChooser(bool b = true);

	/**	Set whether to indicate active/inactive state.
		@param	b	new flag value.
	*/
	void
	SetMarkActiveInactive(bool b = true);

	/**	Set up border for colour chooser.
		@param	b	Flag for border.
	*/
	void
	SetColourChooserWithBorder(bool b = true);

    /**	Handler for erase event.
    	@param	event	Event to process.
    */
    void
    OnErase(wxEraseEvent & event);

    /**	Handler for paint event.
    	@param	event	Event to process.
    */
    void
    OnPaint(wxPaintEvent & event);

    /**	Handler for mouse click event.
    	@param	event	Event to process.
    */
    void
    OnLeftMouseButtonDown(wxMouseEvent & event);

	/**	Handler for right mouse click event.
		@param	event	Event to process.
	*/
	void
	OnRightMouseButtonDown(wxMouseEvent & event);

};



/* vim: set ai sw=4 ts=4 : */
%%	module

#include "dk4conf.h"
#include "Dk4WxColourView.h"

#include <wx/dcbuffer.h>
#include <wx/colordlg.h>

#include "Dk4WxColourPalette.h"



$!trace-include



/**	Handlers for events.
*/
#if	wxCHECK_VERSION(3,0,0)
wxBEGIN_EVENT_TABLE(Dk4WxColourView,wxControl)
#else
BEGIN_EVENT_TABLE(Dk4WxColourView,wxControl)
#endif
  EVT_ERASE_BACKGROUND(Dk4WxColourView::OnErase)
  EVT_PAINT(Dk4WxColourView::OnPaint)
  EVT_LEFT_DOWN(Dk4WxColourView::OnLeftMouseButtonDown)
  EVT_RIGHT_DOWN(Dk4WxColourView::OnRightMouseButtonDown)
#if	wxCHECK_VERSION(3,0,0)
wxEND_EVENT_TABLE()
#else
END_EVENT_TABLE()
#endif



/**	Implementation of dynamic class.
*/
#if	wxCHECK_VERSION(3,0,0)
wxIMPLEMENT_DYNAMIC_CLASS(Dk4WxColourView, wxControl);
#else
IMPLEMENT_DYNAMIC_CLASS(Dk4WxColourView, wxControl)
#endif


#if	wxCHECK_VERSION(3,0,0)
/**	Event generated if the colour was changed.
*/
wxDEFINE_EVENT(wxEVT_DK4_COLOUR_VIEW_EVENT, wxCommandEvent);
#else
/**	Event generated if the colour was changed.
*/
DEFINE_EVENT_TYPE(wxEVT_DK4_COLOUR_VIEW_EVENT)
#endif



/**	Name of the control.
*/
wxChar const Dk4WxColourView::Dk4WxColourViewName[] =
{ wxT("Dk4WxColourView") } ;


static int const default_palette_components[] = {
	  0,   0,   0,
	  0,   0, 255,
	  0, 255,   0,
	  0, 255, 255,
	255,   0,   0,
	255,   0, 255,
	255, 255,   0,
	255, 255, 255,

	192, 192, 192,
	 54,  78, 109,
	  0, 143,   0,
	  0, 209, 209,
	209,   0,   0,
	255, 224, 224,
	255, 214,   0,
	127,  48,   0,
};


Dk4WxColourView::Dk4WxColourView()
{
  pParentWindow = NULL;
  pHelper = NULL;
  w = -1;
  h = -1;
  r = 255;
  g = 255;
  b = 255;
  ccdx = -1;
  ccdy = -1;
  cpdx = -1;
  cpdy = -1;
  bActive = true;
  bPalettePreferred = false;
  bPlaceColourChooser = false;
  bMarkActiveInactive = true;		$? ". bMarkActiveInactive = true"
  bWithBorder		  = true;
  m_wxid = wxID_ANY;
}



Dk4WxColourView::Dk4WxColourView(
      wxWindow					*pParent,
      wxWindowID				 wxid,
      Dk4WxApplicationHelper	*appHelper,
      int						 red,
      int						 green,
      int						 blue,
      wxPoint const &			 pos,
      wxSize  const &			 size,
      long						 style,
      wxChar const				*name
)
: wxControl(
    pParent, wxid, pos, size, style, wxDefaultValidator,
    wxString(name)
)
{
  pParentWindow = pParent;
  pHelper = appHelper;
  w = size.x;
  h = size.y;
  r = red;
  g = green;
  b = blue;
  ccdx = -1;
  ccdy = -1;
  cpdx = -1;
  cpdy = -1;
  bActive = true;
  bPalettePreferred = false;
  bPlaceColourChooser = false;
  bMarkActiveInactive = true;		$? ". bMarkActiveInactive = true"
  bWithBorder		  = true;
  m_wxid = wxid;
}



bool
Dk4WxColourView::Create(
      wxWindow					*pParent,
      wxWindowID				 wxid,
      Dk4WxApplicationHelper	*appHelper,
      int						 red,
      int						 green,
      int						 blue,
      wxPoint const &			 pos,
      wxSize  const &			 size,
      long						 style,
      wxChar const				*name
)
{
  bool back;
  back = wxControl::Create(
    pParent, wxid, pos, size, style, wxDefaultValidator,
    wxString(name)
  );
  pParentWindow = pParent;
  pHelper = appHelper;
  w = size.x;
  h = size.y;
  r = red;
  g = green;
  b = blue;
  ccdx = -1;
  ccdy = -1;
  cpdx = -1;
  cpdy = -1;
  bActive = true;
  bPalettePreferred = false;
  bPlaceColourChooser = false;
  bMarkActiveInactive = true;		$? ". bMarkActiveInactive = true"
  bWithBorder		  = true;
  m_wxid = wxid;
  return back;
}



wxSize
Dk4WxColourView::DoGetBestSize() const
{
  wxSize back(((-1 < w) ? w : 20), ((-1 < h) ? h : 20));
  return back;
}



void
Dk4WxColourView::OnErase(wxEraseEvent & WXUNUSED(event))
{
}



void
Dk4WxColourView::OnPaint(wxPaintEvent & WXUNUSED(event))
{
  wxBufferedPaintDC		useDC(this);
  wxSize				sz		= GetClientSize();
  wxColour				mycolor(r, g, b);
#if	wxCHECK_VERSION(3,0,0)
  wxBrush				myBrush(mycolor, wxBRUSHSTYLE_SOLID);
#else
  wxBrush				myBrush(mycolor, wxSOLID);
#endif
  wxPen					myPen(mycolor);
  int					b		= 2;
  $? "+ OnPaint"
  if (bActive || (!(bMarkActiveInactive))) {
  	useDC.SetBrush(myBrush);
	useDC.SetPen(myPen);
  	useDC.DrawRectangle(0, 0, sz.GetWidth(), sz.GetHeight());
  }
  else {
	wxColour	iac = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWFRAME);
  	int w	= sz.GetWidth();
	int	h	= sz.GetHeight();
	if (w < h) { b = w / 4; } else { b = h / 4; }
	wxPen	blackPen(wxColour(127, 0, 0));
#if	wxCHECK_VERSION(3,0,0)
	wxBrush	grayBrush(iac, wxBRUSHSTYLE_SOLID);
#else
	wxBrush	grayBrush(iac, wxSOLID);
#endif
	useDC.SetBrush(grayBrush);
	useDC.SetPen(blackPen);
	useDC.DrawRectangle(0, 0, sz.GetWidth(), sz.GetHeight());
	useDC.SetBrush(myBrush);
	useDC.SetPen(myPen);
	useDC.DrawRectangle(b, b, (sz.GetWidth() - 2*b), (sz.GetHeight() - 2*b));
	useDC.SetPen(blackPen);
	useDC.DrawLine(0, sz.GetHeight(), sz.GetWidth(), 0);
  }
  useDC.SetBrush(wxNullBrush);
  useDC.SetPen(wxNullPen);
  $? "- OnPaint"
}



void
Dk4WxColourView::PlaceColourChooser(wxWindow & dlg, int x, int y)
{
  if (bPlaceColourChooser) {
  	Dk4WxApplicationHelper::ChooseChildPosition(*this, dlg);
  }
  else {
	if ((-1 < x) && (-1 < y)) {
	  dlg.SetPosition( wxPoint(x,y) );
	}
	else {
	  if (NULL != pParentWindow) {
	  	Dk4WxApplicationHelper::ChooseChildPosition(*pParentWindow, dlg);
	  }
	}
  }
}



void
Dk4WxColourView::RunSystemColourChooser(void)
{
  wxColour			curcol(r, g, b);
  wxColourData		wxcd;
  for (int i = 0; i < 16; i++) {
    wxColour		col(
		default_palette_components[3*i],
		default_palette_components[3*i+1],
		default_palette_components[3*i+2]
	);
  	wxcd.SetCustomColour(i, col);
  }
  wxcd.SetColour(curcol);
  wxColourDialog	dlg(this, &wxcd);
  PlaceColourChooser(dlg, ccdx, ccdy);
  if(dlg.ShowModal() == wxID_OK) {
    wxColour col = dlg.GetColourData().GetColour();
    r = col.Red();
    g = col.Green();
    b = col.Blue();
    dlg.GetPosition(&ccdx, &ccdy);
    Refresh();
    Update();
	SendColourViewEvent();
  } else {
    dlg.GetPosition(&ccdx, &ccdy);
  }
}



void
Dk4WxColourView::RunPaletteColourChooser(void)
{
  Dk4WxColourPalette dlg(
	  ((pParentWindow) ? (pParentWindow) : (this)),
	  pHelper, r, g, b, bWithBorder
  );
  PlaceColourChooser(dlg, cpdx, cpdy);
  if(dlg.ShowModal() == wxID_OK) {
    r = dlg.Red();
    g = dlg.Green();
    b = dlg.Blue();
	dlg.GetPosition(&cpdx, &cpdy);
    Refresh();
    Update();
	SendColourViewEvent();
  }
  else {
  	dlg.GetPosition(&cpdx, &cpdy);
  }
}



void
Dk4WxColourView::OnLeftMouseButtonDown(wxMouseEvent & WXUNUSED(event))
{
  $? "+ Dk4WxColourView::OnLeftMouseButtonDown"
  if (bActive) {
    if (bPalettePreferred) {
		RunPaletteColourChooser();
	}
	else {
		RunSystemColourChooser();
    }
  }
  $? "- Dk4WxColourView::OnLeftMouseButtonDown"
}



void
Dk4WxColourView::OnRightMouseButtonDown(wxMouseEvent & WXUNUSED(event))
{
  $? "+ Dk4WxColourView::OnRightMouseButtonDown"
  if (bActive) {
    if (bPalettePreferred) {
	  RunSystemColourChooser();
	}
	else {
	  RunPaletteColourChooser();
	}
  }
  $? "- Dk4WxColourView::OnRightMouseButtonDown"
}



int
Dk4WxColourView::Red() const
{
  return r;
}



int
Dk4WxColourView::Green() const
{
  return g;
}



int
Dk4WxColourView::Blue() const
{
  return b;
}



void
Dk4WxColourView::SetRGB(int red, int green, int blue)
{
  r = red;
  g = green;
  b = blue;
  if(r < 0) r = 0;
  if(g < 0) g = 0;
  if(b < 0) b = 0;
  if(r > 255) r = 255;
  if(g > 255) g = 255;
  if(b > 255) b = 255;
}



void
Dk4WxColourView::SetActive(bool b)
{
	bool	bMustUpdate;

	bMustUpdate = (bActive == b);
	bActive = b;
	if (bMustUpdate) {
		Refresh();
	}
#if	0
	wxControl::Enable(b);
#endif
}



void
Dk4WxColourView::SetPalettePreferred(bool b)
{
  bPalettePreferred = b;
}



void
Dk4WxColourView::SetPlaceColourChooser(bool b)
{
	bPlaceColourChooser = b;
}



void
Dk4WxColourView::SetMarkActiveInactive(bool b)
{
	bMarkActiveInactive = b;	$? ". bMarkActiveInactive = %d", ((b) ? 1 : 0)
}



void
Dk4WxColourView::SetColourChooserWithBorder(bool b)
{
	bWithBorder = b;
}



void
Dk4WxColourView::SendColourViewEvent(void)
{
	if ((NULL != pParentWindow) && (wxID_ANY != m_wxid)) {
		wxCommandEvent	ev(wxEVT_DK4_COLOUR_VIEW_EVENT, m_wxid);
		wxPostEvent(pParentWindow, ev);
	}
}



/* vim: set ai sw=4 ts=4 : */