/*
   Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   For a list of contributors, see the accompanying CONTRIBUTORS file.

   This file is part of GtkRadiant.

   GtkRadiant 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.

   GtkRadiant 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 GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#if !defined( INCLUDED_XYWINDOW_H )
#define INCLUDED_XYWINDOW_H

#include "math/matrix.h"
#include "signal/signal.h"

#include "gtkutil/cursor.h"
#include "gtkutil/window.h"
#include "gtkutil/xorrectangle.h"
#include "view.h"
#include "map.h"
#include "texturelib.h"

#include "qerplugin.h"

class Shader;
class SelectionSystemWindowObserver;
namespace scene
{
class Node;
}


void FlipClip();
void SplitClip();
void Clip();
void OnClipMode( bool enabled );
bool ClipMode();

inline const char* ViewType_getTitle( VIEWTYPE viewtype ){
	if ( viewtype == XY ) {
		return "XY Top";
	}
	if ( viewtype == XZ ) {
		return "XZ Front";
	}
	if ( viewtype == YZ ) {
		return "YZ Side";
	}
	return "";
}

class XYWnd
{
ui::GLArea m_gl_widget;
guint m_sizeHandler;
guint m_exposeHandler;

DeferredDraw m_deferredDraw;
DeferredMotion m_deferred_motion;
public:
ui::Window m_parent;
XYWnd();
~XYWnd();

void queueDraw(){
	m_deferredDraw.draw();
}
ui::GLArea GetWidget(){
	return m_gl_widget;
}

public:
SelectionSystemWindowObserver* m_window_observer;
XORRectangle m_XORRectangle;
WindowPositionTracker m_positionTracker;

static void captureStates();
static void releaseStates();

void PositionView( const Vector3& position );
const Vector3& GetOrigin();
void SetOrigin( const Vector3& origin );
void Scroll( int x, int y );

void XY_Draw();
void DrawCameraIcon( const Vector3& origin, const Vector3& angles );
void XY_DrawBlockGrid();
void XY_DrawAxis();
void XY_DrawGrid();
void XY_DrawBackground();
void XY_LoadBackgroundImage( const char *name );
void XY_DisableBackground();

void XY_MouseUp( int x, int y, unsigned int buttons );
void XY_MouseDown( int x, int y, unsigned int buttons );
void XY_MouseMoved( int x, int y, unsigned int buttons );

void NewBrushDrag_Begin( int x, int y );
void NewBrushDrag( int x, int y );
void NewBrushDrag_End( int x, int y );

void XY_ToPoint( int x, int y, Vector3& point );
void XY_SnapToGrid( Vector3& point );

void Move_Begin();
void Move_End();
bool m_move_started;
guint m_move_focusOut;

void Zoom_Begin( int x, int y );
void Zoom_End();
bool m_zoom_started;
guint m_zoom_focusOut;

void ZoomIn();
void ZoomOut();
void ZoomInWithMouse( int pointx, int pointy );
void FocusOnBounds( AABB& bounds );

void Redraw();

void RenderActive();

void SetActive( bool b ){
	m_bActive = b;
	RenderActive();
};
bool Active(){
	return m_bActive;
};
struct camera_icon_t
{
	float x, y, fov, box;
	double a;
};
camera_icon_t Cam;
void UpdateCameraIcon();


void Clipper_OnLButtonDown( int x, int y );
void Clipper_OnLButtonUp( int x, int y );
void Clipper_OnMouseMoved( int x, int y );
void Clipper_Crosshair_OnMouseMoved( int x, int y );
void DropClipPoint( int pointx, int pointy );

void SetCustomPivotOrigin( int pointx, int pointy );

void SetViewType( VIEWTYPE n );
bool m_bActive;

static ui::Menu m_mnuDrop;

int m_chasemouse_current_x, m_chasemouse_current_y;
int m_chasemouse_delta_x, m_chasemouse_delta_y;


guint m_chasemouse_handler;
void ChaseMouse();
bool chaseMouseMotion( int pointx, int pointy );

void updateModelview(bool reconstruct = true);
void updateProjection(bool reconstruct = true);
Matrix4 m_projection;
Matrix4 m_modelview;

int m_nWidth;
int m_nHeight;
// background image stuff
qtexture_t *m_tex;
bool m_backgroundActivated;
float m_alpha;   // vertex alpha
float m_xmin, m_ymin, m_xmax, m_ymax;
private:
float m_fScale;
Vector3 m_vOrigin;


View m_view;
static Shader* m_state_selected;

int m_ptCursorX, m_ptCursorY;

unsigned int m_buttonstate;

int m_nNewBrushPressx;
int m_nNewBrushPressy;
scene::Node* m_NewBrushDrag;
bool m_bNewBrushDrag;

Vector3 m_mousePosition;

VIEWTYPE m_viewType;

void OriginalButtonUp( guint32 nFlags, int point, int pointy );
void OriginalButtonDown( guint32 nFlags, int point, int pointy );

void OnContextMenu();
void PaintSizeInfo( int nDim1, int nDim2, Vector3& vMinBounds, Vector3& vMaxBounds );

int m_entityCreate_x, m_entityCreate_y;
bool m_entityCreate;

public:
void ButtonState_onMouseDown( unsigned int buttons ){
	//m_buttonstate |= buttons;
	m_buttonstate = buttons;
}
void ButtonState_onMouseUp( unsigned int buttons ){
	//m_buttonstate &= ~buttons;
	m_buttonstate = 0;
}
unsigned int getButtonState() const {
	return m_buttonstate;
}
void EntityCreate_MouseDown( int x, int y );
void EntityCreate_MouseMove( int x, int y );
void EntityCreate_MouseUp( int x, int y );

void OnEntityCreate( const char* item );
VIEWTYPE GetViewType(){
	return m_viewType;
}
void SetScale( float f );
float Scale(){
	return m_fScale;
}
int Width(){
	return m_nWidth;
}
int Height(){
	return m_nHeight;
}

Signal0 onDestroyed;
Signal3<const WindowVector&, ButtonIdentifier, ModifierFlags> onMouseDown;
void mouseDown( const WindowVector& position, ButtonIdentifier button, ModifierFlags modifiers );
typedef Member<XYWnd, void(const WindowVector&, ButtonIdentifier, ModifierFlags), &XYWnd::mouseDown> MouseDownCaller;
};

inline void XYWnd_Update( XYWnd& xywnd ){
	xywnd.queueDraw();
}

void XY_Centralize();

struct xywindow_globals_t
{
	Vector3 color_gridback;
	Vector3 color_gridminor;
	Vector3 color_gridmajor;
	Vector3 color_gridblock;
	Vector3 color_gridtext;
	Vector3 color_brushes;
	Vector3 color_selbrushes;
	Vector3 color_clipper;
	Vector3 color_viewname;
	Vector3 color_gridminor_alt;
	Vector3 color_gridmajor_alt;
	Vector3 AxisColorX;
	Vector3 AxisColorY;
	Vector3 AxisColorZ;

//	bool m_bRightClick;
	bool m_bNoStipple;
	bool m_bZoomInToPointer;

	xywindow_globals_t() :
		color_gridback( 0.77f, 0.77f, 0.77f ),
		color_gridminor( 0.83f, 0.83f, 0.83f ),
		color_gridmajor( 0.89f, 0.89f, 0.89f ),
		color_gridblock( 1.0f, 1.0f, 1.0f ),
		color_gridtext( 0.f, 0.f, 0.f ),
		color_brushes( 0.f, 0.f, 0.f ),
		color_selbrushes( 1.f, 0.f, 0.f ),
		color_clipper( 0.f, 0.f, 1.f ),
		color_viewname( 0.5f, 0.f, 0.75f ),
		color_gridminor_alt( 0.f, 0.f, 0.f ),
		color_gridmajor_alt( 0.f, 0.f, 0.f ),

		AxisColorX( 1.f, 0.f, 0.f ),
		AxisColorY( 0.f, 1.f, 0.f ),
		AxisColorZ( 0.f, 0.f, 1.f ),
//		m_bRightClick( true ),
		m_bNoStipple( true ),
		m_bZoomInToPointer( true ){
	}

};

extern xywindow_globals_t g_xywindow_globals;


VIEWTYPE GlobalXYWnd_getCurrentViewType();

void XY_Top_Shown_Construct( ui::Window parent );
void YZ_Side_Shown_Construct( ui::Window parent );
void XZ_Front_Shown_Construct( ui::Window parent );

void XYWindow_Construct();
void XYWindow_Destroy();

void WXY_Print();
void WXY_BackgroundSelect();

void XYShow_registerCommands();
void XYWnd_registerShortcuts();

#endif