473 lines
11 KiB
C++
473 lines
11 KiB
C++
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsiteс.ch; http://colobot.info; http://github.com/colobot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://gnu.org/licenses
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*/
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#include "ui/scroll.h"
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#include "common/event.h"
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#include "common/misc.h"
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#include "graphics/engine/engine.h"
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#include "ui/button.h"
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namespace Ui {
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// Object's constructor.
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CScroll::CScroll() : CControl()
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{
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m_buttonUp = 0;
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m_buttonDown = 0;
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m_visibleValue = 0.0f;
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m_visibleRatio = 1.0f;
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m_step = 0.0f;
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m_eventUp = EVENT_NULL;
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m_eventDown = EVENT_NULL;
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m_bCapture = false;
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}
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// Object's destructor.
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CScroll::~CScroll()
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{
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delete m_buttonUp;
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delete m_buttonDown;
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}
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// Creates a new button.
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bool CScroll::Create(Math::Point pos, Math::Point dim, int icon, EventType eventMsg)
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{
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if ( eventMsg == EVENT_NULL ) eventMsg = GetUniqueEventType();
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CControl::Create(pos, dim, icon, eventMsg);
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MoveAdjust();
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return true;
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}
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void CScroll::SetPos(Math::Point pos)
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{
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CControl::SetPos(pos);
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MoveAdjust();
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}
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void CScroll::SetDim(Math::Point dim)
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{
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CControl::SetDim(dim);
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MoveAdjust();
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}
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// Adjust both buttons.
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void CScroll::MoveAdjust()
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{
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CButton* pc;
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Math::Point pos, dim;
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if ( m_dim.y < m_dim.x*2.0f ) // very short lift?
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{
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delete m_buttonUp;
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m_buttonUp = 0;
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delete m_buttonDown;
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m_buttonDown = 0;
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}
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else
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{
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if ( m_buttonUp == 0 )
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{
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m_buttonUp = new CButton();
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pc = m_buttonUp;
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pc->Create(Math::Point(0.0f, 0.0f), Math::Point(0.0f, 0.0f), 49, EVENT_NULL);
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pc->SetRepeat(true);
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m_eventUp = pc->GetEventType();
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}
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if ( m_buttonDown == 0 )
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{
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m_buttonDown = new CButton();
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pc = m_buttonDown;
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pc->Create(Math::Point(0.0f, 0.0f), Math::Point(0.0f, 0.0f), 50, EVENT_NULL);
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pc->SetRepeat(true);
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m_eventDown = pc->GetEventType();
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}
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}
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if ( m_buttonUp != 0 )
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{
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pos.x = m_pos.x;
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pos.y = m_pos.y+m_dim.y-m_dim.x/0.75f;
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dim.x = m_dim.x;
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dim.y = m_dim.x/0.75f;
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m_buttonUp->SetPos(pos);
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m_buttonUp->SetDim(dim);
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}
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if ( m_buttonDown != 0 )
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{
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pos.x = m_pos.x;
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pos.y = m_pos.y;
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dim.x = m_dim.x;
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dim.y = m_dim.x/0.75f;
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m_buttonDown->SetPos(pos);
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m_buttonDown->SetDim(dim);
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}
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AdjustGlint();
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}
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// Adjusts the position of reflection.
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void CScroll::AdjustGlint()
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{
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Math::Point ref;
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float hButton, h;
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hButton = m_buttonUp?m_dim.x/0.75f:0.0f;
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h = m_dim.y-hButton*2.0f;
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ref.x = m_pos.x;
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ref.y = m_pos.y+hButton+h*m_visibleRatio+0.003f;
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ref.y += h*(1.0f-m_visibleRatio)*(1.0f-m_visibleValue);
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GlintCreate(ref);
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}
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bool CScroll::SetState(int state, bool bState)
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{
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if ( state & STATE_ENABLE )
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{
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if ( m_buttonUp != 0 ) m_buttonUp->SetState(state, bState);
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if ( m_buttonDown != 0 ) m_buttonDown->SetState(state, bState);
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}
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return CControl::SetState(state, bState);
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}
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bool CScroll::SetState(int state)
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{
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if ( state & STATE_ENABLE )
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{
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if ( m_buttonUp != 0 ) m_buttonUp->SetState(state);
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if ( m_buttonDown != 0 ) m_buttonDown->SetState(state);
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}
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return CControl::SetState(state);
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}
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bool CScroll::ClearState(int state)
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{
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if ( state & STATE_ENABLE )
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{
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if ( m_buttonUp != 0 ) m_buttonUp->ClearState(state);
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if ( m_buttonDown != 0 ) m_buttonDown->ClearState(state);
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}
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return CControl::ClearState(state);
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}
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// Management of an event.
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bool CScroll::EventProcess(const Event &event)
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{
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Math::Point pos, dim;
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float hButton, h, value;
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CControl::EventProcess(event);
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if ( m_buttonUp != 0 && !m_bCapture )
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{
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if ( !m_buttonUp->EventProcess(event) ) return false;
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}
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if ( m_buttonDown != 0 && !m_bCapture )
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{
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if ( !m_buttonDown->EventProcess(event) ) return false;
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}
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if ( event.type == m_eventUp && m_step > 0.0f )
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{
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m_visibleValue -= m_step;
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if ( m_visibleValue < 0.0f ) m_visibleValue = 0.0f;
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AdjustGlint();
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Event newEvent = event;
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newEvent.type = m_eventType;
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m_event->AddEvent(newEvent);
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}
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if ( event.type == m_eventDown && m_step > 0.0f )
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{
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m_visibleValue += m_step;
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if ( m_visibleValue > 1.0f ) m_visibleValue = 1.0f;
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AdjustGlint();
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Event newEvent = event;
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newEvent.type = m_eventType;
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m_event->AddEvent(newEvent);
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}
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hButton = m_buttonUp?m_dim.x/0.75f:0.0f;
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if ( event.type == EVENT_MOUSE_BUTTON_DOWN &&
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event.mouseButton.button == MOUSE_BUTTON_LEFT &&
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(m_state & STATE_VISIBLE) &&
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(m_state & STATE_ENABLE) )
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{
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if ( CControl::Detect(event.mousePos) )
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{
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pos.y = m_pos.y+hButton;
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dim.y = m_dim.y-hButton*2.0f;
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pos.y += dim.y*(1.0f-m_visibleRatio)*(1.0f-m_visibleValue);
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dim.y *= m_visibleRatio;
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if ( event.mousePos.y < pos.y ||
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event.mousePos.y > pos.y+dim.y ) // click outside cabin?
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{
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h = (m_dim.y-hButton*2.0f)*(1.0f-m_visibleRatio);
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value = 1.0f-(event.mousePos.y-(m_pos.y+hButton+dim.y*0.5f))/h;
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if ( value < 0.0f ) value = 0.0f;
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if ( value > 1.0f ) value = 1.0f;
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m_visibleValue = value;
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AdjustGlint();
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Event newEvent = event;
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newEvent.type = m_eventType;
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m_event->AddEvent(newEvent);
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}
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m_bCapture = true;
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m_pressPos = event.mousePos;
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m_pressValue = m_visibleValue;
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}
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}
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if ( event.type == EVENT_MOUSE_MOVE && m_bCapture )
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{
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h = (m_dim.y-hButton*2.0f)*(1.0f-m_visibleRatio);
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if ( h != 0 )
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{
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value = m_pressValue - (event.mousePos.y-m_pressPos.y)/h;
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if ( value < 0.0f ) value = 0.0f;
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if ( value > 1.0f ) value = 1.0f;
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if ( value != m_visibleValue )
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{
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m_visibleValue = value;
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AdjustGlint();
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Event newEvent = event;
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newEvent.type = m_eventType;
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m_event->AddEvent(newEvent);
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}
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}
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}
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if ( event.type == EVENT_MOUSE_BUTTON_UP &&
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event.mouseButton.button == MOUSE_BUTTON_LEFT &&
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m_bCapture )
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{
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m_bCapture = false;
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}
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if (event.type == EVENT_MOUSE_WHEEL &&
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event.mouseWheel.dir == WHEEL_UP &&
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Detect(event.mousePos) &&
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m_buttonUp != 0)
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{
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Event newEvent = event;
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newEvent.type = m_buttonUp->GetEventType();
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m_event->AddEvent(newEvent);
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}
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if (event.type == EVENT_MOUSE_WHEEL &&
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event.mouseWheel.dir == WHEEL_DOWN &&
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Detect(event.mousePos) &&
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m_buttonDown != 0)
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{
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Event newEvent = event;
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newEvent.type = m_buttonDown->GetEventType();
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m_event->AddEvent(newEvent);
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}
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return true;
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}
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// Draws the button.
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void CScroll::Draw()
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{
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Math::Point pos, dim, ppos, ddim;
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float hButton;
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int icon, n, i;
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hButton = m_buttonUp?m_dim.x/0.75f:0.0f;
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// Draws the bottom.
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pos.x = m_pos.x;
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pos.y = m_pos.y+hButton;
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dim.x = m_dim.x;
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dim.y = m_dim.y-hButton*2.0f;
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if ( m_state & STATE_ENABLE ) icon = 0;
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else icon = 1;
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DrawVertex(pos, dim, icon);
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// Draws the cabin.
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if ( m_visibleRatio < 1.0f && (m_state & STATE_ENABLE) )
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{
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pos.x += 0.003f; // ch'tite(?) margin
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pos.y += 0.003f;
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dim.x -= 0.006f;
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dim.y -= 0.006f;
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pos.y += dim.y*(1.0f-m_visibleRatio)*(1.0f-m_visibleValue);
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dim.y *= m_visibleRatio;
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DrawVertex(pos, dim, 2);
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n = static_cast<int>(dim.y*0.8f/0.012f);
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if ( n < 1 ) n = 1;
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if ( n > 5 ) n = 5;
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ppos.x = pos.x+0.003f;
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ppos.y = pos.y+(dim.y-(n-1)*0.012f-0.008f)/2.0f;
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ddim.x = dim.x-0.006f;
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ddim.y = 0.008f;
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for ( i=0 ; i<n ; i++ )
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{
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DrawVertex(ppos, ddim, 3); // horizontal bar
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ppos.y += 0.012f;
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}
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}
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if ( m_buttonUp != 0 )
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{
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m_buttonUp->Draw();
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}
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if ( m_buttonDown != 0 )
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{
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m_buttonDown->Draw();
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}
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}
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// Draws a rectangle.
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void CScroll::DrawVertex(Math::Point pos, Math::Point dim, int icon)
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{
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Math::Point uv1, uv2;
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float ex, dp;
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if ( icon == 0 )
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{
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m_engine->SetTexture("textures/interface/button2.png");
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m_engine->SetState(Gfx::ENG_RSTATE_NORMAL);
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uv1.x = 0.0f/256.0f; // yellow rectangle
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uv1.y = 32.0f/256.0f;
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uv2.x = 32.0f/256.0f;
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uv2.y = 64.0f/256.0f;
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ex = 8.0f/256.0f;
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}
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else if ( icon == 1 )
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{
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m_engine->SetTexture("textures/interface/button2.png");
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m_engine->SetState(Gfx::ENG_RSTATE_NORMAL);
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uv1.x = 128.0f/256.0f; // gray rectangle
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uv1.y = 32.0f/256.0f;
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uv2.x = 160.0f/256.0f;
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uv2.y = 64.0f/256.0f;
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ex = 8.0f/256.0f;
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}
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else if ( icon == 2 )
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{
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m_engine->SetTexture("textures/interface/button1.png");
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m_engine->SetState(Gfx::ENG_RSTATE_NORMAL);
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uv1.x = 64.0f/256.0f; // blue rectangle
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uv1.y = 0.0f/256.0f;
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uv2.x = 96.0f/256.0f;
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uv2.y = 32.0f/256.0f;
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ex = 8.0f/256.0f;
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}
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else
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{
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m_engine->SetTexture("textures/interface/button2.png");
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m_engine->SetState(Gfx::ENG_RSTATE_NORMAL);
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uv1.x = 104.0f/256.0f; // blue line -
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uv1.y = 32.0f/256.0f;
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uv2.x = 128.0f/256.0f;
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uv2.y = 40.0f/256.0f;
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ex = 0.0f;
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}
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dp = 0.5f/256.0f;
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uv1.x += dp;
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uv1.y += dp;
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uv2.x -= dp;
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uv2.y -= dp;
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DrawIcon(pos, dim, uv1, uv2, ex);
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}
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void CScroll::SetVisibleValue(float value)
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{
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if ( value < 0.0 ) value = 0.0f;
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if ( value > 1.0 ) value = 1.0f;
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m_visibleValue = value;
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AdjustGlint();
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}
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float CScroll::GetVisibleValue()
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{
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return m_visibleValue;
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}
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void CScroll::SetVisibleRatio(float value)
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{
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if ( value < 0.1 ) value = 0.1f;
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if ( value > 1.0 ) value = 1.0f;
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m_visibleRatio = value;
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AdjustGlint();
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}
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float CScroll::GetVisibleRatio()
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{
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return m_visibleRatio;
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}
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void CScroll::SetArrowStep(float step)
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{
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m_step = step;
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}
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float CScroll::GetArrowStep()
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{
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return m_step;
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}
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}
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