// Copyright (C) 2010 Dolphin Project.

// 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, version 2.0.

// 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 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#include "InputConfigDiag.h"
#include "WxUtils.h"

void InputConfigDialog::UpdateBitmaps(wxTimerEvent& WXUNUSED(event))
{
	wxFont small_font(6, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD);

	g_controller_interface.UpdateInput();

	// don't want game thread updating input when we are using it here
	std::unique_lock<std::recursive_mutex> lk(g_controller_interface.update_lock, std::try_to_lock);
	if (!lk.owns_lock())
		return;

	GamepadPage* const current_page = (GamepadPage*)m_pad_notebook->GetPage(m_pad_notebook->GetSelection());

	std::vector< ControlGroupBox* >::iterator
		g = current_page->control_groups.begin(),
		ge = current_page->control_groups.end();
	for ( ; g != ge; ++g  )
	{
		// if this control group has a bitmap
		if ( (*g)->static_bitmap )
		{
			wxMemoryDC dc;
			wxBitmap bitmap((*g)->static_bitmap->GetBitmap());
			dc.SelectObject(bitmap);
			dc.Clear();

			dc.SetFont(small_font);
			dc.SetTextForeground(0xC0C0C0);

			// label for sticks and stuff
			if (64 == bitmap.GetHeight())
				dc.DrawText(StrToWxStr((*g)->control_group->name).Upper(), 4, 2);

			switch ( (*g)->control_group->type )
			{
			case GROUP_TYPE_TILT :
			case GROUP_TYPE_STICK :
			case GROUP_TYPE_CURSOR :
				{
					// this is starting to be a mess combining all these in one case

					float x = 0, y = 0, z = 0;
					float xx, yy;

					switch ((*g)->control_group->type)
					{
					case GROUP_TYPE_STICK :
						((ControllerEmu::AnalogStick*)(*g)->control_group)->GetState( &x, &y, 32.0, 32-1.5 );
						break;
					case GROUP_TYPE_TILT :
						((ControllerEmu::Tilt*)(*g)->control_group)->GetState( &x, &y, 32.0, 32-1.5 );
						break;
					case GROUP_TYPE_CURSOR :
						((ControllerEmu::Cursor*)(*g)->control_group)->GetState( &x, &y, &z );
						x *= (32-1.5); x+= 32;
						y *= (32-1.5); y+= 32;
						break;
					}

					xx = (*g)->control_group->controls[3]->control_ref->State();
					xx -= (*g)->control_group->controls[2]->control_ref->State();
					yy = (*g)->control_group->controls[1]->control_ref->State();
					yy -= (*g)->control_group->controls[0]->control_ref->State();
					xx *= 32 - 1; xx += 32;
					yy *= 32 - 1; yy += 32;

					// draw the shit

					// ir cursor forward movement
					if (GROUP_TYPE_CURSOR == (*g)->control_group->type)
					{
						if (z)
						{
							dc.SetPen(*wxRED_PEN);
							dc.SetBrush(*wxRED_BRUSH);
						}
						else
						{
							dc.SetPen(*wxGREY_PEN);
							dc.SetBrush(*wxGREY_BRUSH);
						}
						dc.DrawRectangle( 0, 31 - z*31, 64, 2);
					}

					// circle for visual aid for diagonal adjustment
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.SetBrush(*wxWHITE_BRUSH);
					if ( GROUP_TYPE_STICK == (*g)->control_group->type )
					{
						dc.SetBrush(*wxTRANSPARENT_BRUSH);
						dc.DrawCircle( 32, 32, 32);
					}
					else
					{
						dc.DrawRectangle( 16, 16, 32, 32 );
					}

					if ( GROUP_TYPE_CURSOR != (*g)->control_group->type )
					{
						// deadzone circle
						dc.SetBrush(*wxLIGHT_GREY_BRUSH);
						dc.DrawCircle( 32, 32, ((*g)->control_group)->settings[0]->value * 32 );
					}

					// raw dot
					dc.SetPen(*wxGREY_PEN);
					dc.SetBrush(*wxGREY_BRUSH);
					// i like the dot better than the cross i think
					dc.DrawRectangle( xx - 2, yy - 2, 4, 4 );
					//dc.DrawRectangle( xx-1, 64-yy-4, 2, 8 );
					//dc.DrawRectangle( xx-4, 64-yy-1, 8, 2 );

					// adjusted dot
					if (x!=32 || y!=32)
					{
						dc.SetPen(*wxRED_PEN);
						dc.SetBrush(*wxRED_BRUSH);
						dc.DrawRectangle( x-2, 64-y-2, 4, 4 );
						// i like the dot better than the cross i think
						//dc.DrawRectangle( x-1, 64-y-4, 2, 8 );
						//dc.DrawRectangle( x-4, 64-y-1, 8, 2 );
					}

				}
				break;
			case GROUP_TYPE_FORCE :
				{
					float raw_dot[3];
					float adj_dot[3];
					const float deadzone = 32 * ((*g)->control_group)->settings[0]->value;

					// adjusted
					((ControllerEmu::Force*)(*g)->control_group)->GetState( adj_dot, 32.0, 32-1.5 );

					// raw
					for ( unsigned int i=0; i<3; ++i )
					{
						raw_dot[i] = (*g)->control_group->controls[i*2 + 1]->control_ref->State()
							- (*g)->control_group->controls[i*2]->control_ref->State();
						raw_dot[i] *= 32 - 1; raw_dot[i] += 32;
					}

					// deadzone rect for forward/backward visual
					dc.SetBrush(*wxLIGHT_GREY_BRUSH);
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.DrawRectangle( 0, 32 - deadzone, 64, deadzone * 2 );

					// raw forward/background line
					dc.SetPen(*wxGREY_PEN);
					dc.SetBrush(*wxGREY_BRUSH);
					dc.DrawRectangle( 0, raw_dot[2] - 1, 64, 2 );

					// adjusted forward/background line
					if ( adj_dot[2]!=32 )
					{
						dc.SetPen(*wxRED_PEN);
						dc.SetBrush(*wxRED_BRUSH);
						dc.DrawRectangle( 0, adj_dot[2] - 1, 64, 2 );
					}

					// a rectangle, for looks i guess
					dc.SetBrush(*wxWHITE_BRUSH);
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.DrawRectangle( 16, 16, 32, 32 );

					// deadzone square
					dc.SetBrush(*wxLIGHT_GREY_BRUSH);
					dc.DrawRectangle( 32 - deadzone, 32 - deadzone, deadzone * 2, deadzone * 2 );

					// raw dot
					dc.SetPen(*wxGREY_PEN);
					dc.SetBrush(*wxGREY_BRUSH);
					dc.DrawRectangle( raw_dot[1] - 2, raw_dot[0] - 2, 4, 4 );

					// adjusted dot
					if ( adj_dot[1]!=32 || adj_dot[0]!=32 )
					{
						dc.SetPen(*wxRED_PEN);
						dc.SetBrush(*wxRED_BRUSH);
						dc.DrawRectangle( adj_dot[1]-2, adj_dot[0]-2, 4, 4 );
					}

				}
				break;
			case GROUP_TYPE_BUTTONS :
				{
					const unsigned int button_count = ((unsigned int)(*g)->control_group->controls.size());

					// draw the shit
					dc.SetPen(*wxGREY_PEN);

					unsigned int * const bitmasks = new unsigned int[ button_count ];
					for (unsigned int n = 0; n<button_count; ++n)
						bitmasks[n] = (1 << n);

					unsigned int buttons = 0;
					((ControllerEmu::Buttons*)(*g)->control_group)->GetState( &buttons, bitmasks );

					for (unsigned int n = 0; n<button_count; ++n)
					{
						if ( buttons & bitmasks[n] )
						{
							dc.SetBrush( *wxRED_BRUSH );
						}
						else
						{
							unsigned char amt = 255 - (*g)->control_group->controls[n]->control_ref->State() * 128;
							dc.SetBrush(wxBrush(wxColor(amt, amt, amt)));
						}
						dc.DrawRectangle(n * 12, 0, 14, 12);

						// text
						const char* const name = (*g)->control_group->controls[n]->name;
						// bit of hax so ZL, ZR show up as L, R
						dc.DrawText(StrToWxStr(std::string(1, (name[1] && name[1] < 'a') ? name[1] : name[0])), n*12 + 2, 1);
					}

					delete[] bitmasks;
					
				}
				break;
			case GROUP_TYPE_TRIGGERS :
				{
					const unsigned int trigger_count = ((unsigned int)((*g)->control_group->controls.size()));

					// draw the shit
					dc.SetPen(*wxGREY_PEN);
					ControlState deadzone =  (*g)->control_group->settings[0]->value;

					unsigned int* const trigs = new unsigned int[trigger_count];
					((ControllerEmu::Triggers*)(*g)->control_group)->GetState( trigs, 64 );

					for ( unsigned int n = 0; n < trigger_count; ++n )
					{
						ControlState trig_r = (*g)->control_group->controls[n]->control_ref->State();

						// outline
						dc.SetPen(*wxGREY_PEN);
						dc.SetBrush(*wxWHITE_BRUSH);
						dc.DrawRectangle(0, n*12, 64, 14);

						// raw
						dc.SetBrush(*wxGREY_BRUSH);
						dc.DrawRectangle(0, n*12, trig_r*64, 14);

						// deadzone affected
						dc.SetBrush(*wxRED_BRUSH);
						dc.DrawRectangle(0, n*12, trigs[n], 14);

						// text
						dc.DrawText(StrToWxStr((*g)->control_group->controls[n]->name), 3, n*12 + 1);
					}

					delete[] trigs;

					// deadzone box
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.SetBrush(*wxTRANSPARENT_BRUSH);
					dc.DrawRectangle(0, 0, deadzone*64, trigger_count*14);

				}
				break;
			case GROUP_TYPE_MIXED_TRIGGERS :
				{
					const unsigned int trigger_count = ((unsigned int)((*g)->control_group->controls.size() / 2));

					// draw the shit
					dc.SetPen(*wxGREY_PEN);
					ControlState thresh =  (*g)->control_group->settings[0]->value;

					for ( unsigned int n = 0; n < trigger_count; ++n )
					{
						dc.SetBrush(*wxRED_BRUSH);
						ControlState trig_d = (*g)->control_group->controls[n]->control_ref->State();

						ControlState trig_a = trig_d > thresh ? 1
							: (*g)->control_group->controls[n+trigger_count]->control_ref->State();

						dc.DrawRectangle(0, n*12, 64+20, 14);
						if ( trig_d <= thresh )
							dc.SetBrush(*wxWHITE_BRUSH);
						dc.DrawRectangle(trig_a*64, n*12, 64+20, 14);
						dc.DrawRectangle(64, n*12, 32, 14);

						// text
						dc.DrawText(StrToWxStr((*g)->control_group->controls[n+trigger_count]->name), 3, n*12 + 1);
						dc.DrawText(StrToWxStr(std::string(1, (*g)->control_group->controls[n]->name[0])), 64 + 3, n*12 + 1);
					}

					// threshold box
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.SetBrush(*wxTRANSPARENT_BRUSH);
					dc.DrawRectangle(thresh*64, 0, 128, trigger_count*14);

				}
				break;
			case GROUP_TYPE_SLIDER:
				{
					const ControlState deadzone =  (*g)->control_group->settings[0]->value;

					ControlState state = (*g)->control_group->controls[1]->control_ref->State() - (*g)->control_group->controls[0]->control_ref->State();
					dc.SetPen(*wxGREY_PEN);
					dc.SetBrush(*wxGREY_BRUSH);
					dc.DrawRectangle(31 + state * 30, 0, 2, 14);

					((ControllerEmu::Slider*)(*g)->control_group)->GetState(&state, 1);
					if (state)
					{
						dc.SetPen(*wxRED_PEN);
						dc.SetBrush(*wxRED_BRUSH);
						dc.DrawRectangle(31 + state * 30, 0, 2, 14);
					}

					// deadzone box
					dc.SetPen(*wxLIGHT_GREY_PEN);
					dc.SetBrush(*wxTRANSPARENT_BRUSH);
					dc.DrawRectangle(32 - deadzone * 32, 0, deadzone * 64, 14);
				}
				break;
			default :
				break;
			}

			// box outline
			// Windows XP color
			dc.SetPen(wxPen(_T("#7f9db9")));
			dc.SetBrush(*wxTRANSPARENT_BRUSH);
			dc.DrawRectangle(0, 0, bitmap.GetWidth(), bitmap.GetHeight());

			dc.SelectObject(wxNullBitmap);
			(*g)->static_bitmap->SetBitmap(bitmap);
		}
	}
}