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Import irrlicht 1.8.4 release
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Loic Blot
340
tools/GUIEditor/CGUIPanel.cpp
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340
tools/GUIEditor/CGUIPanel.cpp
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// Copyright 2006-2012 Asger Feldthaus
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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/*
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Originally Klasker's but I've messed around with it lots - Gaz
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*/
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#include "CGUIPanel.h"
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#include "IGUIEnvironment.h"
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#include "IGUIScrollBar.h"
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#include "IGUITabControl.h"
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#include "IVideoDriver.h"
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const int SCROLL_BAR_SIZE = 16; // Scroll bars are 16 pixels wide
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const int BORDER_WIDTH = 2;
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namespace irr
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{
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namespace gui
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{
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CGUIPanel::CGUIPanel(IGUIEnvironment* environment, IGUIElement* parent, s32 id, const core::rect<s32>& rectangle,
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bool border, E_SCROLL_BAR_MODE vMode, E_SCROLL_BAR_MODE hMode)
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: IGUIElement(EGUIET_ELEMENT, environment, parent, id, rectangle),
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VScrollBar(0), HScrollBar(0), ClipPane(0), InnerPane(0),
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VScrollBarMode(vMode), HScrollBarMode(hMode), NeedsUpdate(true), Border(border)
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{
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#ifdef _DEBUG
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setDebugName("CGUIPanel");
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#endif
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s32 width = rectangle.getWidth();
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s32 height = rectangle.getHeight();
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core::rect<s32> rct = core::rect<s32>(width - SCROLL_BAR_SIZE,0, width, height);
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VScrollBar = environment->addScrollBar(false, rct, 0, id);
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VScrollBar->setSubElement(true);
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VScrollBar->setTabStop(false);
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VScrollBar->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
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VScrollBar->grab();
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IGUIElement::addChild(VScrollBar);
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rct = core::rect<s32>(0, height - SCROLL_BAR_SIZE, width - SCROLL_BAR_SIZE,height );
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HScrollBar = environment->addScrollBar(true, rct, 0, id);
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HScrollBar->setSubElement(true);
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HScrollBar->setTabStop(false);
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HScrollBar->setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT);
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HScrollBar->grab();
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IGUIElement::addChild(HScrollBar);
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rct = core::rect<s32>(0,0, width - SCROLL_BAR_SIZE, height - SCROLL_BAR_SIZE);
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ClipPane = environment->addTab( rct, 0, -1);
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ClipPane->setSubElement(true);
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ClipPane->setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
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ClipPane->grab();
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IGUIElement::addChild(ClipPane);
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InnerPane = environment->addTab(rct, ClipPane, -1);
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InnerPane->setSubElement(true);
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InnerPane->grab();
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calculateClientArea();
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resizeInnerPane();
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}
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CGUIPanel::~CGUIPanel()
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{
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// because the inner pane has the list of children, we need to remove the outer ones manually
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IGUIElement::removeChild(VScrollBar);
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IGUIElement::removeChild(HScrollBar);
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IGUIElement::removeChild(ClipPane);
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// now we can drop the others
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VScrollBar->drop();
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HScrollBar->drop();
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ClipPane->drop();
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InnerPane->drop();
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}
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void CGUIPanel::draw()
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{
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if (NeedsUpdate)
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{
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calculateClientArea();
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resizeInnerPane();
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NeedsUpdate = false;
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}
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IGUISkin* skin = Environment->getSkin();
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if (Border && skin)
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{
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skin->draw3DSunkenPane( this, skin->getColor( EGDC_APP_WORKSPACE), false, true, AbsoluteRect, &AbsoluteClippingRect );
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}
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IGUIElement::draw();
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}
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void CGUIPanel::addChild(IGUIElement *child)
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{
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// add the child to the inner pane
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InnerPane->addChild(child);
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NeedsUpdate = true;
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}
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void CGUIPanel::removeChild(IGUIElement *child)
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{
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InnerPane->removeChild(child);
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NeedsUpdate = true;
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}
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//! returns children of the inner pane
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const core::list<IGUIElement*>& CGUIPanel::getChildren()
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{
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return InnerPane->getChildren();
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}
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bool CGUIPanel::hasBorder() const
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{
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return Border;
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}
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void CGUIPanel::setBorder( bool enabled )
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{
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Border = enabled;
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}
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IGUIScrollBar* CGUIPanel::getVScrollBar() const
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{
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return VScrollBar;
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}
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IGUIScrollBar* CGUIPanel::getHScrollBar() const
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{
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return HScrollBar;
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}
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E_SCROLL_BAR_MODE CGUIPanel::getVScrollBarMode() const
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{
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return VScrollBarMode;
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}
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void CGUIPanel::setVScrollBarMode( E_SCROLL_BAR_MODE mode )
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{
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VScrollBarMode = mode;
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NeedsUpdate = true;
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}
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E_SCROLL_BAR_MODE CGUIPanel::getHScrollBarMode() const
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{
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return HScrollBarMode;
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}
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void CGUIPanel::setHScrollBarMode(E_SCROLL_BAR_MODE mode)
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{
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HScrollBarMode = mode;
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NeedsUpdate = true;
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}
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bool CGUIPanel::OnEvent(const SEvent &event)
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{
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// Redirect mouse wheel to scrollbar
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if (event.EventType == EET_MOUSE_INPUT_EVENT && event.MouseInput.Event == EMIE_MOUSE_WHEEL)
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{
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if (VScrollBar->isVisible())
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{
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Environment->setFocus(VScrollBar);
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VScrollBar->OnEvent(event);
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return true;
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}
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else if (VScrollBar->isVisible())
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{
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Environment->setFocus(HScrollBar);
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HScrollBar->OnEvent(event);
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return true;
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}
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}
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else
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{
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if (event.EventType == EET_GUI_EVENT && event.GUIEvent.EventType == EGET_SCROLL_BAR_CHANGED &&
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(event.GUIEvent.Caller == HScrollBar || event.GUIEvent.Caller == VScrollBar) )
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{
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moveInnerPane();
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return true;
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}
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}
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return IGUIElement::OnEvent(event);
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}
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void CGUIPanel::moveInnerPane()
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{
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core::dimension2d<s32> dim = InnerPane->getAbsolutePosition().getSize();
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core::position2d<s32> newpos(HScrollBar->isVisible() ? -HScrollBar->getPos() : 0 , VScrollBar->isVisible() ? -VScrollBar->getPos() : 0);
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core::rect<s32> r(newpos, newpos + dim);
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InnerPane->setRelativePosition(r);
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}
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void CGUIPanel::updateAbsolutePosition()
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{
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IGUIElement::updateAbsolutePosition();
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calculateClientArea();
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resizeInnerPane();
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}
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void CGUIPanel::resizeInnerPane()
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{
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if (!HScrollBar || !VScrollBar || !InnerPane || !ClipPane)
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return;
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// get outer pane size
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core::rect<s32> outerRect = ClipPane->getRelativePosition();
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// resize flexible children depending on outer pane
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InnerPane->setRelativePosition(outerRect);
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// get desired size (total size of all children)
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core::rect<s32> totalRect(0, 0, 0, 0);
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core::list<IGUIElement*>::ConstIterator it;
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for (it = InnerPane->getChildren().begin();
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it != InnerPane->getChildren().end(); ++it)
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{
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core::rect<s32> rct = (*it)->getRelativePosition();
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totalRect.addInternalPoint(rct.UpperLeftCorner);
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totalRect.addInternalPoint(rct.LowerRightCorner);
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}
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// move children if pane needs to grow
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core::position2di adjustedMovement(0,0);
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if (totalRect.UpperLeftCorner.X < 0)
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adjustedMovement.X = -totalRect.UpperLeftCorner.X;
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if (totalRect.UpperLeftCorner.Y < 0)
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adjustedMovement.Y = -totalRect.UpperLeftCorner.Y;
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if (adjustedMovement.X > 0 || adjustedMovement.Y > 0)
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{
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totalRect += adjustedMovement;
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for (it = InnerPane->getChildren().begin();
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it != InnerPane->getChildren().end(); ++it )
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{
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(*it)->move(adjustedMovement);
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}
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}
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// make sure the inner pane is at least as big as the outer
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if (totalRect.getWidth() < outerRect.getWidth())
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{
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totalRect.UpperLeftCorner.X = 0;
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totalRect.LowerRightCorner.X = outerRect.getWidth();
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}
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if (totalRect.getHeight() < outerRect.getHeight())
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{
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totalRect.UpperLeftCorner.Y = 0;
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totalRect.LowerRightCorner.Y = outerRect.getHeight();
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}
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InnerPane->setRelativePosition(totalRect);
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// scrollbars
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if ( HScrollBarMode != ESBM_ALWAYS_INVISIBLE &&
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(totalRect.getWidth() > outerRect.getWidth() || HScrollBarMode == ESBM_ALWAYS_VISIBLE) )
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{
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HScrollBar->setVisible(true);
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HScrollBar->setMax(totalRect.getWidth() - outerRect.getWidth());
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bringToFront(HScrollBar);
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}
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else
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HScrollBar->setVisible(false);
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if ( VScrollBarMode != ESBM_ALWAYS_INVISIBLE &&
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(totalRect.getHeight() > outerRect.getHeight() || VScrollBarMode == ESBM_ALWAYS_VISIBLE) )
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{
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VScrollBar->setVisible(true);
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VScrollBar->setMax(totalRect.getHeight() - outerRect.getHeight());
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bringToFront(VScrollBar);
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}
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else
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VScrollBar->setVisible(false);
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// move to adjust for scrollbar pos
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moveInnerPane();
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}
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void CGUIPanel::calculateClientArea()
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{
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core::rect<s32> ClientArea(0,0, AbsoluteRect.getWidth(),AbsoluteRect.getHeight());
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if (VScrollBar->isVisible())
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ClientArea.LowerRightCorner.X -= VScrollBar->getRelativePosition().getWidth();
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if (HScrollBar->isVisible())
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ClientArea.LowerRightCorner.Y -= HScrollBar->getRelativePosition().getHeight();
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if (Border)
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{
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ClientArea.UpperLeftCorner += core::position2d<s32>( BORDER_WIDTH, BORDER_WIDTH );
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ClientArea.LowerRightCorner -= core::position2d<s32>( BORDER_WIDTH, BORDER_WIDTH );
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}
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ClipPane->setRelativePosition(ClientArea);
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}
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core::rect<s32> CGUIPanel::getClientArea() const
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{
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return ClipPane->getRelativePosition();
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}
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void CGUIPanel::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options)
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{
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IGUIElement::serializeAttributes(out, options);
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out->addBool("border", Border);
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out->addEnum("horizontalScrollBar", HScrollBarMode, GUIScrollBarModeNames );
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out->addEnum("verticalScrollBar", VScrollBarMode, GUIScrollBarModeNames );
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}
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void CGUIPanel::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
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{
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IGUIElement::deserializeAttributes(in, options);
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setBorder(in->getAttributeAsBool("border"));
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setHScrollBarMode((E_SCROLL_BAR_MODE)in->getAttributeAsEnumeration("horizontalScrollBar", GUIScrollBarModeNames));
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setVScrollBarMode((E_SCROLL_BAR_MODE)in->getAttributeAsEnumeration("verticalScrollBar", GUIScrollBarModeNames));
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}
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} // namespace gui
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} // namespace irr
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