gotopage.cpp

爱可视605看PDF程式源代码, 基于APDF

#include "gotopage.h"
#include "general/slider.h"
#include "general/style.h"

#include <qapplication.h>
#include <qpainter.h>
#include <qbitmap.h>
#include <qgfx_qws.h>
#include <qlayout.h>
#include <archos/atr.h>
#include <archos/screen.h>

using namespace archos;

GotoPage::GotoPage(int numPages, int page, int cancelSetZoom, QWidget *parent, const char *name) :
	QWidget( parent, name,
		QWidget::WStyle_Customize | QWidget::WStyle_NoBorder | WRepaintNoErase | QWidget::WStyle_StaysOnTop)
	, m_numPages(numPages)
	, m_page(page)
{
	int dw = qt_screen->width();
	int dh = qt_screen->height();
	int x1 = 10;
	int x2 = dw - 20;
	
	QString path = AStyle::iconpath + Screen::prefix();

	m_slider = new Slider(x2 - x1, this);
	QVBoxLayout *v1 = new QVBoxLayout(this);
	v1->setMargin(5);
	v1->addWidget(m_slider);
	m_slider->setFocus();

	int optionalHeight = 0;
	if ( cancelSetZoom ) {	
		QFont font = qApp->font();
		if (Screen::mode() == wqvga || Screen::mode() == qvga) {
			font.setPointSize(16);
		}
		else if ( Screen::mode() == wvga ) {
			font.setPointSize(22);
		}
		else {  // tv
			font.setPointSize(18);
		}
		setFont(font);
	}

	move(x1, dh / 2 - m_slider->sizeHint().height() / 2);
	setGeometry(x1, dh / 2 - m_slider->sizeHint().height() / 2, x2, m_slider->sizeHint().height() + optionalHeight + 10 );
	connect(m_slider, SIGNAL(valueChanged(int)), this, SLOT(updateValue(int)));
}

GotoPage::~GotoPage()
{
	delete m_slider;
}

void GotoPage::gotoPageProxy(int x)
{
	emit gotoPage(x - 1);
}

void GotoPage::setValues(int num, int current)
{
	m_numPages = num;
	m_page = current;
	m_slider->setValues(m_page, m_numPages);
}

void GotoPage::paintEvent(QPaintEvent *)
{
	QPainter p(this);
	AStyle::get()->drawPanel(&p, rect());
}

void GotoPage::aborted(void)
{
	hide();
	emit closed();
}

void GotoPage::acked(void)
{
	m_page = m_slider->getValue() - 1;
	emit gotoPage(m_page);
	emit closed();
	hide();
}

void GotoPage::keyReleaseEvent(QKeyEvent *e)
{
	switch(e->key()) {
		case Key_Return:
			acked();
			break;
		case Key_F2:
			aborted();
			break;
		default:
			break;
	}
}

void GotoPage::showEvent(QShowEvent*)
{
	updateMask();
}

void GotoPage::updateMask()
{
	QBitmap mask(size());
	{	QPainter p(&mask);
		AStyle::get()->drawPanel(&p, rect());
	}
	setMask(mask);	
}

void GotoPage::inc()
{
	if (m_page + 1 <= m_numPages) {
		m_page++;
	}
	update();
}

bool GotoPage::eventFilter(QObject *target, QEvent *event)
{
	if ( event->type() == QEvent::KeyPress || event->type() == QEvent::KeyRelease ) {
		QKeyEvent *ke = (QKeyEvent*)event;
		if ( ke->key() == Key_Left || ke->key() == Key_Right ) {
			return QApplication::sendEvent(m_slider, event);
		}
	}
	return QWidget::eventFilter(target, event);
}

void GotoPage::dec()
{
	if (m_page - 1 > 0) {
		m_page--;
	}
	update();
}

int GotoPage::selectedPage()
{
	return m_page;
}

void GotoPage::updateValue(int v)
{
	m_page = v;
}