irrlicht/source/Irrlicht/CGUISpinBox.cpp

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// Copyright (C) 2006-2012 Michael Zeilfelder
// This file uses the licence of the Irrlicht Engine.
#include "CGUISpinBox.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "CGUIEditBox.h"
#include "CGUIButton.h"
#include "IGUIEnvironment.h"
#include "IEventReceiver.h"
#include "fast_atof.h"
#include <wchar.h>
namespace irr
{
namespace gui
{
//! constructor
CGUISpinBox::CGUISpinBox(const wchar_t* text, bool border,IGUIEnvironment* environment,
IGUIElement* parent, s32 id, const core::rect<s32>& rectangle)
: IGUISpinBox(environment, parent, id, rectangle),
EditBox(0), ButtonSpinUp(0), ButtonSpinDown(0), StepSize(1.f),
RangeMin(-FLT_MAX), RangeMax(FLT_MAX), FormatString(L"%f"),
DecimalPlaces(-1), ValidateOn(EGUI_SBV_ENTER|EGUI_SBV_LOSE_FOCUS)
{
#ifdef _DEBUG
setDebugName("CGUISpinBox");
#endif
CurrentIconColor = video::SColor(255,255,255,255);
s32 ButtonWidth = 16;
ButtonSpinDown = Environment->addButton(
core::rect<s32>(rectangle.getWidth() - ButtonWidth, rectangle.getHeight()/2 +1,
rectangle.getWidth(), rectangle.getHeight()), this);
ButtonSpinDown->grab();
ButtonSpinDown->setSubElement(true);
ButtonSpinDown->setTabStop(false);
ButtonSpinDown->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_CENTER, EGUIA_LOWERRIGHT);
ButtonSpinUp = Environment->addButton(
core::rect<s32>(rectangle.getWidth() - ButtonWidth, 0,
rectangle.getWidth(), rectangle.getHeight()/2), this);
ButtonSpinUp->grab();
ButtonSpinUp->setSubElement(true);
ButtonSpinUp->setTabStop(false);
ButtonSpinUp->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_CENTER);
const core::rect<s32> rectEdit(0, 0, rectangle.getWidth() - ButtonWidth - 1, rectangle.getHeight());
EditBox = Environment->addEditBox(text, rectEdit, border, this, -1);
EditBox->grab();
EditBox->setSubElement(true);
EditBox->setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
refreshSprites();
}
//! destructor
CGUISpinBox::~CGUISpinBox()
{
if (ButtonSpinUp)
ButtonSpinUp->drop();
if (ButtonSpinDown)
ButtonSpinDown->drop();
if (EditBox)
EditBox->drop();
}
void CGUISpinBox::refreshSprites()
{
IGUISpriteBank *sb = 0;
if (Environment && Environment->getSkin())
{
sb = Environment->getSkin()->getSpriteBank();
}
if (sb)
{
IGUISkin * skin = Environment->getSkin();
CurrentIconColor = skin->getColor(isEnabled() ? EGDC_WINDOW_SYMBOL : EGDC_GRAY_WINDOW_SYMBOL);
ButtonSpinDown->setSpriteBank(sb);
ButtonSpinDown->setSprite(EGBS_BUTTON_UP, skin->getIcon(EGDI_SMALL_CURSOR_DOWN), CurrentIconColor);
ButtonSpinDown->setSprite(EGBS_BUTTON_DOWN, skin->getIcon(EGDI_SMALL_CURSOR_DOWN), CurrentIconColor);
ButtonSpinUp->setSpriteBank(sb);
ButtonSpinUp->setSprite(EGBS_BUTTON_UP, skin->getIcon(EGDI_SMALL_CURSOR_UP), CurrentIconColor);
ButtonSpinUp->setSprite(EGBS_BUTTON_DOWN, skin->getIcon(EGDI_SMALL_CURSOR_UP), CurrentIconColor);
}
else
{
ButtonSpinDown->setText(L"-");
ButtonSpinUp->setText(L"+");
}
}
IGUIEditBox* CGUISpinBox::getEditBox() const
{
return EditBox;
}
void CGUISpinBox::setValue(f32 val)
{
wchar_t str[100];
swprintf_irr(str, 99, FormatString.c_str(), val);
EditBox->setText(str);
verifyValueRange();
}
f32 CGUISpinBox::getValue() const
{
const wchar_t* val = EditBox->getText();
if ( !val )
return 0.f;
core::stringc tmp(val);
return core::fast_atof(tmp.c_str());
}
void CGUISpinBox::setRange(f32 min, f32 max)
{
if (max<min)
core::swap(min, max);
RangeMin = min;
RangeMax = max;
// we have to round the range - otherwise we can get into an infinte setValue/verifyValueRange cycle.
wchar_t str[100];
swprintf_irr(str, 99, FormatString.c_str(), RangeMin);
RangeMin = core::fast_atof(core::stringc(str).c_str());
swprintf_irr(str, 99, FormatString.c_str(), RangeMax);
RangeMax = core::fast_atof(core::stringc(str).c_str());
verifyValueRange();
}
f32 CGUISpinBox::getMin() const
{
return RangeMin;
}
f32 CGUISpinBox::getMax() const
{
return RangeMax;
}
f32 CGUISpinBox::getStepSize() const
{
return StepSize;
}
void CGUISpinBox::setStepSize(f32 step)
{
StepSize = step;
}
//! Sets the number of decimal places to display.
void CGUISpinBox::setDecimalPlaces(s32 places)
{
DecimalPlaces = places;
if (places == -1)
FormatString = "%f";
else
{
FormatString = "%.";
FormatString += places;
FormatString += "f";
}
setRange( RangeMin, RangeMax );
setValue(getValue());
}
//! Sets when the spinbox has to validate entered text.
void CGUISpinBox::setValidateOn(u32 validateOn)
{
ValidateOn = validateOn;
}
//! Gets when the spinbox has to validate entered text.
u32 CGUISpinBox::getValidateOn() const
{
return ValidateOn;
}
bool CGUISpinBox::OnEvent(const SEvent& event)
{
if (IsEnabled)
{
bool changeEvent = false;
bool eatEvent = false;
switch(event.EventType)
{
case EET_MOUSE_INPUT_EVENT:
switch(event.MouseInput.Event)
{
case EMIE_MOUSE_WHEEL:
{
f32 val = getValue() + (StepSize * (event.MouseInput.Wheel < 0 ? -1.f : 1.f));
setValue(val);
changeEvent = true;
eatEvent = true;
}
break;
default:
break;
}
break;
case EET_GUI_EVENT:
if (event.GUIEvent.EventType == EGET_BUTTON_CLICKED)
{
if (event.GUIEvent.Caller == ButtonSpinUp)
{
f32 val = getValue();
val += StepSize;
setValue(val);
changeEvent = true;
}
else if ( event.GUIEvent.Caller == ButtonSpinDown)
{
f32 val = getValue();
val -= StepSize;
setValue(val);
changeEvent = true;
}
}
if (event.GUIEvent.Caller == EditBox)
{
if ( (event.GUIEvent.EventType == EGET_EDITBOX_CHANGED && ValidateOn & EGUI_SBV_CHANGE)
|| (event.GUIEvent.EventType == EGET_EDITBOX_ENTER && ValidateOn & EGUI_SBV_ENTER)
|| (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST && ValidateOn & EGUI_SBV_LOSE_FOCUS)
)
{
verifyValueRange();
changeEvent = true;
}
}
break;
default:
break;
}
if ( changeEvent )
{
SEvent e;
e.EventType = EET_GUI_EVENT;
e.GUIEvent.Caller = this;
e.GUIEvent.Element = 0;
e.GUIEvent.EventType = EGET_SPINBOX_CHANGED;
if ( Parent )
Parent->OnEvent(e);
if ( eatEvent )
return true;
}
}
return IGUIElement::OnEvent(event);
}
void CGUISpinBox::draw()
{
if ( !isVisible() )
return;
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
video::SColor iconColor = skin->getColor(isEnabled() ? EGDC_WINDOW_SYMBOL : EGDC_GRAY_WINDOW_SYMBOL);
if ( iconColor != CurrentIconColor )
{
refreshSprites();
}
IGUISpinBox::draw();
}
void CGUISpinBox::verifyValueRange()
{
f32 val = getValue();
if ( val+core::ROUNDING_ERROR_f32 < RangeMin )
val = RangeMin;
else if ( val-core::ROUNDING_ERROR_f32 > RangeMax )
val = RangeMax;
else
return;
setValue(val);
}
//! Sets the new caption of the element
void CGUISpinBox::setText(const wchar_t* text)
{
EditBox->setText(text);
setValue(getValue());
verifyValueRange();
}
//! Returns caption of this element.
const wchar_t* CGUISpinBox::getText() const
{
return EditBox->getText();
}
//! Writes attributes of the element.
void CGUISpinBox::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
{
IGUIElement::serializeAttributes(out, options);
out->addFloat("Min", getMin());
out->addFloat("Max", getMax());
out->addFloat("Step", getStepSize());
out->addInt("DecimalPlaces", DecimalPlaces);
out->addInt("ValidateOn", (s32)ValidateOn);
}
//! Reads attributes of the element
void CGUISpinBox::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
{
IGUIElement::deserializeAttributes(in, options);
setRange(in->getAttributeAsFloat("Min", RangeMin), in->getAttributeAsFloat("Max", RangeMax));
setStepSize(in->getAttributeAsFloat("Step", StepSize));
setDecimalPlaces(in->getAttributeAsInt("DecimalPlaces", DecimalPlaces));
setValidateOn((u32)in->getAttributeAsInt("ValidateOn", (s32)ValidateOn) );
}
} // end namespace gui
} // end namespace irr
#endif // _IRR_COMPILE_WITH_GUI_