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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CGUICheckBox.h"
#include "IGUISkin.h"
#include "IGUIEnvironment.h"
#include "IVideoDriver.h"
#include "IGUIFont.h"
#include "os.h"
namespace irr
{
namespace gui
{
//! constructor
CGUICheckBox::CGUICheckBox(bool checked, IGUIEnvironment* environment, IGUIElement* parent, s32 id, core::rect<s32> rectangle)
: IGUICheckBox(environment, parent, id, rectangle), CheckTime(0), Pressed(false), Checked(checked)
, Border(false), Background(false)
{
#ifdef _DEBUG
setDebugName("CGUICheckBox");
#endif
// this element can be tabbed into
setTabStop(true);
setTabOrder(-1);
}
//! called if an event happened.
bool CGUICheckBox::OnEvent(const SEvent& event)
{
if (isEnabled())
{
switch(event.EventType)
{
case EET_KEY_INPUT_EVENT:
if (event.KeyInput.PressedDown &&
(event.KeyInput.Key == KEY_RETURN || event.KeyInput.Key == KEY_SPACE))
{
Pressed = true;
return true;
}
else
if (Pressed && event.KeyInput.PressedDown && event.KeyInput.Key == KEY_ESCAPE)
{
Pressed = false;
return true;
}
else
if (!event.KeyInput.PressedDown && Pressed &&
(event.KeyInput.Key == KEY_RETURN || event.KeyInput.Key == KEY_SPACE))
{
Pressed = false;
if (Parent)
{
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
Checked = !Checked;
newEvent.GUIEvent.EventType = EGET_CHECKBOX_CHANGED;
Parent->OnEvent(newEvent);
}
return true;
}
break;
case EET_GUI_EVENT:
if (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST)
{
if (event.GUIEvent.Caller == this)
Pressed = false;
}
break;
case EET_MOUSE_INPUT_EVENT:
if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
{
Pressed = true;
CheckTime = os::Timer::getTime();
return true;
}
else
if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
{
bool wasPressed = Pressed;
Pressed = false;
if (wasPressed && Parent)
{
if ( !AbsoluteClippingRect.isPointInside( core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y) ) )
{
Pressed = false;
return true;
}
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
Checked = !Checked;
newEvent.GUIEvent.EventType = EGET_CHECKBOX_CHANGED;
Parent->OnEvent(newEvent);
}
return true;
}
break;
default:
break;
}
}
return IGUIElement::OnEvent(event);
}
//! draws the element and its children
void CGUICheckBox::draw()
{
if (!IsVisible)
return;
IGUISkin* skin = Environment->getSkin();
if (skin)
{
video::IVideoDriver* driver = Environment->getVideoDriver();
core::rect<s32> frameRect(AbsoluteRect);
// draw background
if (Background)
{
video::SColor bgColor = skin->getColor(gui::EGDC_3D_FACE);
driver->draw2DRectangle(bgColor, frameRect, &AbsoluteClippingRect);
}
// draw the border
if (Border)
{
skin->draw3DSunkenPane(this, 0, true, false, frameRect, &AbsoluteClippingRect);
frameRect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X);
frameRect.LowerRightCorner.X -= skin->getSize(EGDS_TEXT_DISTANCE_X);
}
const s32 height = skin->getSize(EGDS_CHECK_BOX_WIDTH);
// the rectangle around the "checked" area.
core::rect<s32> checkRect(frameRect.UpperLeftCorner.X,
((frameRect.getHeight() - height) / 2) + frameRect.UpperLeftCorner.Y,
0, 0);
checkRect.LowerRightCorner.X = checkRect.UpperLeftCorner.X + height;
checkRect.LowerRightCorner.Y = checkRect.UpperLeftCorner.Y + height;
EGUI_DEFAULT_COLOR col = EGDC_GRAY_EDITABLE;
if ( isEnabled() )
col = Pressed ? EGDC_FOCUSED_EDITABLE : EGDC_EDITABLE;
skin->draw3DSunkenPane(this, skin->getColor(col),
false, true, checkRect, &AbsoluteClippingRect);
// the checked icon
if (Checked)
{
skin->drawIcon(this, EGDI_CHECK_BOX_CHECKED, checkRect.getCenter(),
CheckTime, os::Timer::getTime(), false, &AbsoluteClippingRect);
}
// associated text
if (Text.size())
{
checkRect = frameRect;
checkRect.UpperLeftCorner.X += height + 5;
IGUIFont* font = skin->getFont();
if (font)
{
font->draw(Text.c_str(), checkRect,
skin->getColor(isEnabled() ? EGDC_BUTTON_TEXT : EGDC_GRAY_TEXT), false, true, &AbsoluteClippingRect);
}
}
}
IGUIElement::draw();
}
//! set if box is checked
void CGUICheckBox::setChecked(bool checked)
{
Checked = checked;
}
//! returns if box is checked
bool CGUICheckBox::isChecked() const
{
return Checked;
}
//! Sets whether to draw the background
void CGUICheckBox::setDrawBackground(bool draw)
{
Background = draw;
}
//! Checks if background drawing is enabled
bool CGUICheckBox::isDrawBackgroundEnabled() const
{
return Background;
}
//! Sets whether to draw the border
void CGUICheckBox::setDrawBorder(bool draw)
{
Border = draw;
}
//! Checks if border drawing is enabled
bool CGUICheckBox::isDrawBorderEnabled() const
{
return Border;
}
} // end namespace gui
} // end namespace irr
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