ewol/Sources/libewol/ewol/widget/Label.cpp

/**
 *******************************************************************************
 * @file ewol/widget/Label.cpp
 * @brief ewol Label widget system (Sources)
 * @author Edouard DUPIN
 * @date 22/12/2011
 * @par Project
 * ewol
 *
 * @par Copyright
 * Copyright 2011 Edouard DUPIN, all right reserved
 *
 * This software is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY.
 *
 * Licence summary : 
 *    You can modify and redistribute the sources code and binaries.
 *    You can send me the bug-fix
 *
 * Term of the licence in in the file licence.txt.
 *
 *******************************************************************************
 */

#include <ewol/widget/Label.h>

#include <ewol/OObject.h>
#include <ewol/WidgetManager.h>


extern const char * const ewolEventLabelPressed    = "ewol Label Pressed";



#undef __class__
#define __class__	"Label"


void ewol::Label::Init(void)
{
	AddEventId(ewolEventLabelPressed);
	m_textColorFg = etk::color::color_Black;
	SetCanHaveFocus(false);
}

ewol::Label::Label(void)
{
	m_label = "---";
	Init();
}

ewol::Label::Label(etk::UString newLabel)
{
	m_label = newLabel;
	Init();
}


ewol::Label::~Label(void)
{
	
}


//!< EObject name :
extern const char * const ewol::TYPE_EOBJECT_WIDGET_LABEL = "Label";

/**
 * @brief Check if the object has the specific type.
 * @note In Embended platforme, it is many time no -rtti flag, then it is not possible to use dynamic cast ==> this will replace it
 * @param[in] objectType type of the object we want to check
 * @return true if the object is compatible, otherwise false
 */
bool ewol::Label::CheckObjectType(const char * const objectType)
{
	if (NULL == objectType) {
		EWOL_ERROR("check error : \"" << ewol::TYPE_EOBJECT_WIDGET_LABEL << "\" != NULL(pointer) ");
		return false;
	}
	if (objectType == ewol::TYPE_EOBJECT_WIDGET_LABEL) {
		return true;
	} else {
		if(true == ewol::Drawable::CheckObjectType(objectType)) {
			return true;
		}
		EWOL_ERROR("check error : \"" << ewol::TYPE_EOBJECT_WIDGET_LABEL << "\" != \"" << objectType << "\"");
		return false;
	}
}

/**
 * @brief Get the current Object type of the EObject
 * @note In Embended platforme, it is many time no -rtti flag, then it is not possible to use dynamic cast ==> this will replace it
 * @param[in] objectType type description
 * @return true if the object is compatible, otherwise false
 */
const char * const ewol::Label::GetObjectType(void)
{
	return ewol::TYPE_EOBJECT_WIDGET_LABEL;
}


bool ewol::Label::CalculateMinSize(void)
{
	int32_t fontId = GetDefaultFontId();
	int32_t minWidth = ewol::GetWidth(fontId, m_label);
	int32_t minHeight = ewol::GetHeight(fontId);
	m_minSize.x = 3+minWidth;
	m_minSize.y = 3+minHeight;
	MarkToReedraw();
	return true;
}


void ewol::Label::SetLabel(etk::UString newLabel)
{
	m_label = newLabel;
	MarkToReedraw();
}


void ewol::Label::OnRegenerateDisplay(void)
{
	if (true == NeedRedraw()) {
		// clean the object list ...
		ClearOObjectList();
		
		int32_t paddingSize = 3;
		
		int32_t tmpOriginX = 0;
		int32_t tmpOriginY = 0;
		
		if (true==m_userFillX) {
			tmpOriginX = (m_size.x - m_minSize.x) / 2;
		}
		if (true==m_userFillY) {
			tmpOriginY = (m_size.y - m_minSize.y) / 2;
		}
		tmpOriginX += paddingSize;
		tmpOriginY += paddingSize;
		
		ewol::OObject2DText * tmpText = new ewol::OObject2DText("", -1, m_textColorFg);
		
		coord2D_ts textPos;
		textPos.x = tmpOriginX;
		textPos.y = tmpOriginY;
		clipping_ts drawClipping;
		drawClipping.x = paddingSize;
		drawClipping.y = paddingSize;
		drawClipping.w = m_size.x - 2*paddingSize;
		drawClipping.h = m_size.y - 2*paddingSize;
		tmpText->Text(textPos, drawClipping, m_label);
		
		AddOObject(tmpText);
	}
}

/**
 * @brief Event on an input of this Widget
 * @param[in] IdInput Id of the current Input (PC : left=1, right=2, middle=3, none=0 / Tactil : first finger=1 , second=2 (only on this widget, no knowledge at ouside finger))
 * @param[in] typeEvent ewol type of event like EVENT_INPUT_TYPE_DOWN/EVENT_INPUT_TYPE_MOVE/EVENT_INPUT_TYPE_UP/EVENT_INPUT_TYPE_SINGLE/EVENT_INPUT_TYPE_DOUBLE/...
 * @param[in] pos Absolute position of the event
 * @return true the event is used
 * @return false the event is not used
 */
bool ewol::Label::OnEventInput(int32_t IdInput, eventInputType_te typeEvent, coord2D_ts pos)
{
	//EWOL_DEBUG("Event on Label ...");
	if (1 == IdInput) {
		if (ewol::EVENT_INPUT_TYPE_SINGLE == typeEvent) {
			// nothing to do ...
			GenerateEventId(ewolEventLabelPressed);
			return true;
		}
	}
	return false;
}