You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
673 lines
19 KiB
673 lines
19 KiB
/****************************************************************************
|
|
**
|
|
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for Qt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#include "showimg.h"
|
|
#include "imagetexteditor.h"
|
|
#include <qmenubar.h>
|
|
#include <qfiledialog.h>
|
|
#include <qmessagebox.h>
|
|
#include <qpopupmenu.h>
|
|
#include <qlabel.h>
|
|
#include <qpainter.h>
|
|
#include <qapplication.h>
|
|
#include <qclipboard.h>
|
|
|
|
|
|
/*
|
|
In the constructor, we just pass the standard parameters on to
|
|
QWidget.
|
|
|
|
The menu uses a single slot to simplify the process of adding
|
|
more items to the options menu.
|
|
*/
|
|
ImageViewer::ImageViewer( QWidget *parent, const char *name, int wFlags )
|
|
: QWidget( parent, name, wFlags ),
|
|
conversion_flags( PreferDither ),
|
|
helpmsg( 0 )
|
|
{
|
|
pickx = -1;
|
|
picky = -1;
|
|
clickx = -1;
|
|
clicky = -1;
|
|
alloc_context = 0;
|
|
|
|
menubar = new QMenuBar(this);
|
|
menubar->setSeparator( QMenuBar::InWindowsStyle );
|
|
|
|
QStrList fmt = QImage::outputFormats();
|
|
saveimage = new QPopupMenu( menubar );
|
|
savepixmap = new QPopupMenu( menubar );
|
|
for (const char* f = fmt.first(); f; f = fmt.next()) {
|
|
saveimage->insertItem( f );
|
|
savepixmap->insertItem( f );
|
|
}
|
|
connect( saveimage, SIGNAL(activated(int)), this, SLOT(saveImage(int)) );
|
|
connect( savepixmap, SIGNAL(activated(int)), this, SLOT(savePixmap(int)) );
|
|
|
|
file = new QPopupMenu( menubar );
|
|
menubar->insertItem( "&File", file );
|
|
file->insertItem( "&New window", this, SLOT(newWindow()), CTRL+Key_N );
|
|
file->insertItem( "&Open...", this, SLOT(openFile()), CTRL+Key_O );
|
|
si = file->insertItem( "Save image", saveimage );
|
|
sp = file->insertItem( "Save pixmap", savepixmap );
|
|
file->insertSeparator();
|
|
file->insertItem( "E&xit", qApp, SLOT(quit()), CTRL+Key_Q );
|
|
|
|
edit = new QPopupMenu( menubar );
|
|
menubar->insertItem( "&Edit", edit );
|
|
edit->insertItem("&Copy", this, SLOT(copy()), CTRL+Key_C);
|
|
edit->insertItem("&Paste", this, SLOT(paste()), CTRL+Key_V);
|
|
edit->insertSeparator();
|
|
edit->insertItem("&Horizontal flip", this, SLOT(hFlip()), ALT+Key_H);
|
|
edit->insertItem("&Vertical flip", this, SLOT(vFlip()), ALT+Key_V);
|
|
edit->insertItem("&Rotate 180", this, SLOT(rot180()), ALT+Key_R);
|
|
edit->insertSeparator();
|
|
edit->insertItem("&Text...", this, SLOT(editText()));
|
|
edit->insertSeparator();
|
|
t1 = edit->insertItem( "Convert to &1 bit", this, SLOT(to1Bit()) );
|
|
t8 = edit->insertItem( "Convert to &8 bit", this, SLOT(to8Bit()) );
|
|
t32 = edit->insertItem( "Convert to &32 bit", this, SLOT(to32Bit()) );
|
|
|
|
options = new QPopupMenu( menubar );
|
|
menubar->insertItem( "&Options", options );
|
|
ac = options->insertItem( "AutoColor" );
|
|
co = options->insertItem( "ColorOnly" );
|
|
mo = options->insertItem( "MonoOnly" );
|
|
options->insertSeparator();
|
|
fd = options->insertItem( "DiffuseDither" );
|
|
bd = options->insertItem( "OrderedDither" );
|
|
td = options->insertItem( "ThresholdDither" );
|
|
options->insertSeparator();
|
|
ta = options->insertItem( "ThresholdAlphaDither" );
|
|
ba = options->insertItem( "OrderedAlphaDither" );
|
|
fa = options->insertItem( "DiffuseAlphaDither" );
|
|
options->insertSeparator();
|
|
ad = options->insertItem( "PreferDither" );
|
|
dd = options->insertItem( "AvoidDither" );
|
|
options->insertSeparator();
|
|
ss = options->insertItem( "Smooth scaling" );
|
|
cc = options->insertItem( "Use color context" );
|
|
if ( QApplication::colorSpec() == QApplication::ManyColor )
|
|
options->setItemEnabled( cc, FALSE );
|
|
options->setCheckable( TRUE );
|
|
setMenuItemFlags();
|
|
|
|
menubar->insertSeparator();
|
|
|
|
QPopupMenu* help = new QPopupMenu( menubar );
|
|
menubar->insertItem( "&Help", help );
|
|
help->insertItem( "Help!", this, SLOT(giveHelp()), CTRL+Key_H );
|
|
|
|
connect( options, SIGNAL(activated(int)), this, SLOT(doOption(int)) );
|
|
|
|
status = new QLabel(this);
|
|
status->setFrameStyle( QFrame::WinPanel | QFrame::Sunken );
|
|
status->setFixedHeight( fontMetrics().height() + 4 );
|
|
|
|
setMouseTracking( TRUE );
|
|
}
|
|
|
|
ImageViewer::~ImageViewer()
|
|
{
|
|
if ( alloc_context )
|
|
QColor::destroyAllocContext( alloc_context );
|
|
if ( other == this )
|
|
other = 0;
|
|
}
|
|
|
|
/*
|
|
This function modifies the conversion_flags when an options menu item
|
|
is selected, then ensures all menu items are up to date, and reconverts
|
|
the image if possibly necessary.
|
|
*/
|
|
void ImageViewer::doOption(int item)
|
|
{
|
|
if ( item == ss || item == cc ) {
|
|
// Toggle
|
|
bool newbool = !options->isItemChecked(item);
|
|
options->setItemChecked(item, newbool);
|
|
// And reconvert...
|
|
reconvertImage();
|
|
repaint(image.hasAlphaBuffer()); // show image in widget
|
|
return;
|
|
}
|
|
|
|
if ( options->isItemChecked( item ) ) return; // They are all radio buttons
|
|
|
|
int ocf = conversion_flags;
|
|
|
|
if ( item == ac ) {
|
|
conversion_flags = ( conversion_flags & ~ColorMode_Mask ) | AutoColor;
|
|
} else if ( item == co ) {
|
|
conversion_flags = ( conversion_flags & ~ColorMode_Mask ) | ColorOnly;
|
|
} else if ( item == mo ) {
|
|
conversion_flags = ( conversion_flags & ~ColorMode_Mask ) | MonoOnly;
|
|
} else if ( item == fd ) {
|
|
conversion_flags = ( conversion_flags & ~Dither_Mask ) | DiffuseDither;
|
|
} else if ( item == bd ) {
|
|
conversion_flags = ( conversion_flags & ~Dither_Mask ) | OrderedDither;
|
|
} else if ( item == td ) {
|
|
conversion_flags = ( conversion_flags & ~Dither_Mask ) | ThresholdDither;
|
|
} else if ( item == ta ) {
|
|
conversion_flags = ( conversion_flags & ~AlphaDither_Mask ) | ThresholdAlphaDither;
|
|
} else if ( item == fa ) {
|
|
conversion_flags = ( conversion_flags & ~AlphaDither_Mask ) | DiffuseAlphaDither;
|
|
} else if ( item == ba ) {
|
|
conversion_flags = ( conversion_flags & ~AlphaDither_Mask ) | OrderedAlphaDither;
|
|
} else if ( item == ad ) {
|
|
conversion_flags = ( conversion_flags & ~DitherMode_Mask ) | PreferDither;
|
|
} else if ( item == dd ) {
|
|
conversion_flags = ( conversion_flags & ~DitherMode_Mask ) | AvoidDither;
|
|
}
|
|
|
|
if ( ocf != conversion_flags ) {
|
|
setMenuItemFlags();
|
|
// And reconvert...
|
|
reconvertImage();
|
|
repaint(image.hasAlphaBuffer()); // show image in widget
|
|
}
|
|
}
|
|
|
|
/*
|
|
Set the options menu to reflect the conversion_flags value.
|
|
*/
|
|
void ImageViewer::setMenuItemFlags()
|
|
{
|
|
// File
|
|
bool valid_image = pm.size() != QSize( 0, 0 );
|
|
file->setItemEnabled( si, valid_image );
|
|
file->setItemEnabled( sp, valid_image );
|
|
|
|
// Edit
|
|
edit->setItemEnabled( t1, image.depth() != 1 );
|
|
edit->setItemEnabled( t8, image.depth() != 8 );
|
|
edit->setItemEnabled( t32, image.depth() != 32 );
|
|
|
|
// Options
|
|
bool may_need_color_dithering =
|
|
!valid_image
|
|
|| image.depth() == 32 && QPixmap::defaultDepth() < 24;
|
|
bool may_need_dithering = may_need_color_dithering
|
|
|| image.depth() > 1 && options->isItemChecked(mo)
|
|
|| image.depth() > 1 && QPixmap::defaultDepth() == 1;
|
|
bool has_alpha_mask = !valid_image || image.hasAlphaBuffer();
|
|
|
|
options->setItemEnabled( fd, may_need_dithering );
|
|
options->setItemEnabled( bd, may_need_dithering );
|
|
options->setItemEnabled( td, may_need_dithering );
|
|
|
|
options->setItemEnabled( ta, has_alpha_mask );
|
|
options->setItemEnabled( fa, has_alpha_mask );
|
|
options->setItemEnabled( ba, has_alpha_mask );
|
|
|
|
options->setItemEnabled( ad, may_need_color_dithering );
|
|
options->setItemEnabled( dd, may_need_color_dithering );
|
|
|
|
options->setItemChecked( ac, (conversion_flags & ColorMode_Mask) == AutoColor );
|
|
options->setItemChecked( co, (conversion_flags & ColorMode_Mask) == ColorOnly );
|
|
options->setItemChecked( mo, (conversion_flags & ColorMode_Mask) == MonoOnly );
|
|
options->setItemChecked( fd, (conversion_flags & Dither_Mask) == DiffuseDither );
|
|
options->setItemChecked( bd, (conversion_flags & Dither_Mask) == OrderedDither );
|
|
options->setItemChecked( td, (conversion_flags & Dither_Mask) == ThresholdDither );
|
|
options->setItemChecked( ta, (conversion_flags & AlphaDither_Mask) == ThresholdAlphaDither );
|
|
options->setItemChecked( fa, (conversion_flags & AlphaDither_Mask) == DiffuseAlphaDither );
|
|
options->setItemChecked( ba, (conversion_flags & AlphaDither_Mask) == OrderedAlphaDither );
|
|
options->setItemChecked( ad, (conversion_flags & DitherMode_Mask) == PreferDither );
|
|
options->setItemChecked( dd, (conversion_flags & DitherMode_Mask) == AvoidDither );
|
|
}
|
|
|
|
void ImageViewer::updateStatus()
|
|
{
|
|
if ( pm.size() == QSize( 0, 0 ) ) {
|
|
if ( !filename.isEmpty() )
|
|
status->setText("Could not load image");
|
|
else
|
|
status->setText("No image - select Open from File menu.");
|
|
} else {
|
|
QString message, moremsg;
|
|
message.sprintf("%dx%d", image.width(), image.height());
|
|
if ( pm.size() != pmScaled.size() ) {
|
|
moremsg.sprintf(" [%dx%d]", pmScaled.width(),
|
|
pmScaled.height());
|
|
message += moremsg;
|
|
}
|
|
moremsg.sprintf(", %d bits ", image.depth());
|
|
message += moremsg;
|
|
if (image.valid(pickx,picky)) {
|
|
moremsg.sprintf("(%d,%d)=#%0*x ",
|
|
pickx, picky,
|
|
image.hasAlphaBuffer() ? 8 : 6,
|
|
image.pixel(pickx,picky));
|
|
message += moremsg;
|
|
}
|
|
if ( image.numColors() > 0 ) {
|
|
if (image.valid(pickx,picky)) {
|
|
moremsg.sprintf(", %d/%d colors", image.pixelIndex(pickx,picky),
|
|
image.numColors());
|
|
} else {
|
|
moremsg.sprintf(", %d colors", image.numColors());
|
|
}
|
|
message += moremsg;
|
|
}
|
|
if ( image.hasAlphaBuffer() ) {
|
|
if ( image.depth() == 8 ) {
|
|
int i;
|
|
bool alpha[256];
|
|
int nalpha=0;
|
|
|
|
for (i=0; i<256; i++)
|
|
alpha[i] = FALSE;
|
|
|
|
for (i=0; i<image.numColors(); i++) {
|
|
int alevel = image.color(i) >> 24;
|
|
if (!alpha[alevel]) {
|
|
alpha[alevel] = TRUE;
|
|
nalpha++;
|
|
}
|
|
}
|
|
moremsg.sprintf(", %d alpha levels", nalpha);
|
|
} else {
|
|
// Too many pixels to bother counting.
|
|
moremsg = ", 8-bit alpha channel";
|
|
}
|
|
message += moremsg;
|
|
}
|
|
status->setText(message);
|
|
}
|
|
}
|
|
|
|
/*
|
|
This function saves the image.
|
|
*/
|
|
void ImageViewer::saveImage( int item )
|
|
{
|
|
const char* fmt = saveimage->text(item);
|
|
QString savefilename = QFileDialog::getSaveFileName(QString::null, QString::null,
|
|
this, filename);
|
|
if ( !savefilename.isEmpty() )
|
|
if ( !image.save( savefilename, fmt ) )
|
|
QMessageBox::warning( this, "Save failed", "Error saving file" );
|
|
}
|
|
|
|
/*
|
|
This function saves the converted image.
|
|
*/
|
|
void ImageViewer::savePixmap( int item )
|
|
{
|
|
const char* fmt = savepixmap->text(item);
|
|
QString savefilename = QFileDialog::getSaveFileName(QString::null,
|
|
QString::null, this, filename);
|
|
if ( !savefilename.isEmpty() )
|
|
if ( !pmScaled.save( savefilename, fmt ) )
|
|
QMessageBox::warning( this, "Save failed", "Error saving file" );
|
|
}
|
|
|
|
|
|
void ImageViewer::newWindow()
|
|
{
|
|
ImageViewer* that = new ImageViewer(0, "new window", WDestructiveClose);
|
|
that->options->setItemChecked( that->cc, useColorContext() );
|
|
that->show();
|
|
}
|
|
|
|
/*
|
|
This function is the slot for processing the Open menu item.
|
|
*/
|
|
void ImageViewer::openFile()
|
|
{
|
|
QString newfilename = QFileDialog::getOpenFileName( QString::null,
|
|
QString::null,
|
|
this );
|
|
if ( !newfilename.isEmpty() ) {
|
|
loadImage( newfilename ) ;
|
|
repaint(); // show image in widget
|
|
}
|
|
}
|
|
|
|
/*
|
|
This function loads an image from a file and resizes the widget to
|
|
exactly fit the image size. If the file was not found or the image
|
|
format was unknown it will resize the widget to fit the errorText
|
|
message (see above) displayed in the current font.
|
|
|
|
Returns TRUE if the image was successfully loaded.
|
|
*/
|
|
|
|
bool ImageViewer::loadImage( const QString& fileName )
|
|
{
|
|
filename = fileName;
|
|
bool ok = FALSE;
|
|
if ( !filename.isEmpty() ) {
|
|
QApplication::setOverrideCursor( waitCursor ); // this might take time
|
|
ok = image.load(filename, 0);
|
|
pickx = -1;
|
|
clickx = -1;
|
|
if ( ok )
|
|
ok = reconvertImage();
|
|
if ( ok ) {
|
|
setCaption( filename ); // set window caption
|
|
int w = pm.width();
|
|
int h = pm.height();
|
|
|
|
const int reasonable_width = 128;
|
|
if ( w < reasonable_width ) {
|
|
// Integer scale up to something reasonable
|
|
int multiply = ( reasonable_width + w - 1 ) / w;
|
|
w *= multiply;
|
|
h *= multiply;
|
|
}
|
|
|
|
h += menubar->heightForWidth(w) + status->height();
|
|
resize( w, h ); // we resize to fit image
|
|
} else {
|
|
pm.resize(0,0); // couldn't load image
|
|
update();
|
|
}
|
|
QApplication::restoreOverrideCursor(); // restore original cursor
|
|
}
|
|
updateStatus();
|
|
setMenuItemFlags();
|
|
return ok;
|
|
}
|
|
|
|
bool ImageViewer::reconvertImage()
|
|
{
|
|
bool success = FALSE;
|
|
|
|
if ( image.isNull() ) return FALSE;
|
|
|
|
if ( alloc_context ) {
|
|
QColor::destroyAllocContext( alloc_context );
|
|
alloc_context = 0;
|
|
}
|
|
if ( useColorContext() ) {
|
|
alloc_context = QColor::enterAllocContext();
|
|
// Clear the image to hide flickering palette
|
|
QPainter painter(this);
|
|
painter.eraseRect(0, menubar->heightForWidth( width() ), width(), height());
|
|
}
|
|
|
|
QApplication::setOverrideCursor( waitCursor ); // this might take time
|
|
if ( pm.convertFromImage(image, conversion_flags) )
|
|
{
|
|
pmScaled = QPixmap();
|
|
scale();
|
|
resize( width(), height() );
|
|
success = TRUE; // load successful
|
|
} else {
|
|
pm.resize(0,0); // couldn't load image
|
|
}
|
|
updateStatus();
|
|
setMenuItemFlags();
|
|
QApplication::restoreOverrideCursor(); // restore original cursor
|
|
|
|
if ( useColorContext() )
|
|
QColor::leaveAllocContext();
|
|
|
|
return success; // TRUE if loaded OK
|
|
}
|
|
|
|
bool ImageViewer::smooth() const
|
|
{
|
|
return options->isItemChecked(ss);
|
|
}
|
|
|
|
bool ImageViewer::useColorContext() const
|
|
{
|
|
return options->isItemChecked(cc);
|
|
}
|
|
|
|
/*
|
|
This functions scales the pixmap in the member variable "pm" to fit the
|
|
widget size and puts the resulting pixmap in the member variable "pmScaled".
|
|
*/
|
|
|
|
void ImageViewer::scale()
|
|
{
|
|
int h = height() - menubar->heightForWidth( width() ) - status->height();
|
|
|
|
if ( image.isNull() ) return;
|
|
|
|
QApplication::setOverrideCursor( waitCursor ); // this might take time
|
|
if ( width() == pm.width() && h == pm.height() )
|
|
{ // no need to scale if widget
|
|
pmScaled = pm; // size equals pixmap size
|
|
} else {
|
|
if (smooth()) {
|
|
pmScaled.convertFromImage(image.smoothScale(width(), h),
|
|
conversion_flags);
|
|
} else {
|
|
QWMatrix m; // transformation matrix
|
|
m.scale(((double)width())/pm.width(),// define scale factors
|
|
((double)h)/pm.height());
|
|
pmScaled = pm.xForm( m ); // create scaled pixmap
|
|
}
|
|
}
|
|
QApplication::restoreOverrideCursor(); // restore original cursor
|
|
}
|
|
|
|
/*
|
|
The resize event handler, if a valid pixmap was loaded it will call
|
|
scale() to fit the pixmap to the new widget size.
|
|
*/
|
|
|
|
void ImageViewer::resizeEvent( QResizeEvent * )
|
|
{
|
|
status->setGeometry(0, height() - status->height(),
|
|
width(), status->height());
|
|
|
|
if ( pm.size() == QSize( 0, 0 ) ) // we couldn't load the image
|
|
return;
|
|
|
|
int h = height() - menubar->heightForWidth( width() ) - status->height();
|
|
if ( width() != pmScaled.width() || h != pmScaled.height())
|
|
{ // if new size,
|
|
scale(); // scale pmScaled to window
|
|
updateStatus();
|
|
}
|
|
if ( image.hasAlphaBuffer() )
|
|
erase();
|
|
}
|
|
|
|
bool ImageViewer::convertEvent( QMouseEvent* e, int& x, int& y)
|
|
{
|
|
if ( pm.size() != QSize( 0, 0 ) ) {
|
|
int h = height() - menubar->heightForWidth( width() ) - status->height();
|
|
int nx = e->x() * image.width() / width();
|
|
int ny = (e->y()-menubar->heightForWidth( width() )) * image.height() / h;
|
|
if (nx != x || ny != y ) {
|
|
x = nx;
|
|
y = ny;
|
|
updateStatus();
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void ImageViewer::mousePressEvent( QMouseEvent *e )
|
|
{
|
|
may_be_other = convertEvent(e, clickx, clicky);
|
|
}
|
|
|
|
void ImageViewer::mouseReleaseEvent( QMouseEvent * )
|
|
{
|
|
if ( may_be_other )
|
|
other = this;
|
|
}
|
|
|
|
/*
|
|
Record the pixel position of interest.
|
|
*/
|
|
void ImageViewer::mouseMoveEvent( QMouseEvent *e )
|
|
{
|
|
if (convertEvent(e,pickx,picky)) {
|
|
updateStatus();
|
|
if ((e->state()&LeftButton)) {
|
|
may_be_other = FALSE;
|
|
if ( clickx >= 0 && other) {
|
|
copyFrom(other);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Draws the portion of the scaled pixmap that needs to be updated or prints
|
|
an error message if no legal pixmap has been loaded.
|
|
*/
|
|
|
|
void ImageViewer::paintEvent( QPaintEvent *e )
|
|
{
|
|
if ( pm.size() != QSize( 0, 0 ) ) { // is an image loaded?
|
|
QPainter painter(this);
|
|
painter.setClipRect(e->rect());
|
|
painter.drawPixmap(0, menubar->heightForWidth( width() ), pmScaled);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
Explain anything that might be confusing.
|
|
*/
|
|
void ImageViewer::giveHelp()
|
|
{
|
|
if (!helpmsg) {
|
|
QString helptext =
|
|
"<b>Usage:</b> <tt>showimg [-m] <i>filename ...</i></tt>"
|
|
"<blockquote>"
|
|
"<tt>-m</tt> - use <i>ManyColor</i> color spec"
|
|
"</blockquote>"
|
|
"<p>Supported input formats:"
|
|
"<blockquote>";
|
|
helptext += QImage::inputFormatList().join(", ");
|
|
helptext += "</blockquote>";
|
|
|
|
helpmsg = new QMessageBox( "Help", helptext,
|
|
QMessageBox::Information, QMessageBox::Ok, 0, 0, 0, 0, FALSE );
|
|
}
|
|
helpmsg->show();
|
|
helpmsg->raise();
|
|
}
|
|
|
|
void ImageViewer::copyFrom(ImageViewer* s)
|
|
{
|
|
if ( clickx >= 0 ) {
|
|
int dx = clickx;
|
|
int dy = clicky;
|
|
int sx = s->clickx;
|
|
int sy = s->clicky;
|
|
int sw = QABS(clickx - pickx)+1;
|
|
int sh = QABS(clicky - picky)+1;
|
|
if ( clickx > pickx ) {
|
|
dx = pickx;
|
|
sx -= sw-1;
|
|
}
|
|
if ( clicky > picky ) {
|
|
dy = picky;
|
|
sy -= sh-1;
|
|
}
|
|
bitBlt( &image, dx, dy, &s->image, sx, sy, sw, sh );
|
|
reconvertImage();
|
|
repaint( image.hasAlphaBuffer() );
|
|
}
|
|
}
|
|
ImageViewer* ImageViewer::other = 0;
|
|
|
|
void ImageViewer::hFlip()
|
|
{
|
|
setImage(image.mirror(TRUE,FALSE));
|
|
}
|
|
|
|
void ImageViewer::vFlip()
|
|
{
|
|
setImage(image.mirror(FALSE,TRUE));
|
|
}
|
|
|
|
void ImageViewer::rot180()
|
|
{
|
|
setImage(image.mirror(TRUE,TRUE));
|
|
}
|
|
|
|
void ImageViewer::copy()
|
|
{
|
|
#ifndef QT_NO_MIMECLIPBOARD
|
|
QApplication::clipboard()->setImage(image); // Less information loss
|
|
#endif
|
|
}
|
|
|
|
void ImageViewer::paste()
|
|
{
|
|
#ifndef QT_NO_MIMECLIPBOARD
|
|
QImage p = QApplication::clipboard()->image();
|
|
if ( !p.isNull() ) {
|
|
filename = "pasted";
|
|
setImage(p);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void ImageViewer::setImage(const QImage& newimage)
|
|
{
|
|
image = newimage;
|
|
|
|
pickx = -1;
|
|
clickx = -1;
|
|
setCaption( filename ); // set window caption
|
|
int w = image.width();
|
|
int h = image.height();
|
|
if ( !w )
|
|
return;
|
|
|
|
const int reasonable_width = 128;
|
|
if ( w < reasonable_width ) {
|
|
// Integer scale up to something reasonable
|
|
int multiply = ( reasonable_width + w - 1 ) / w;
|
|
w *= multiply;
|
|
h *= multiply;
|
|
}
|
|
|
|
h += menubar->heightForWidth(w) + status->height();
|
|
resize( w, h ); // we resize to fit image
|
|
|
|
reconvertImage();
|
|
repaint( image.hasAlphaBuffer() );
|
|
|
|
updateStatus();
|
|
setMenuItemFlags();
|
|
}
|
|
|
|
void ImageViewer::editText()
|
|
{
|
|
ImageTextEditor editor(image,this);
|
|
editor.exec();
|
|
}
|
|
|
|
void ImageViewer::to1Bit()
|
|
{
|
|
toBitDepth(1);
|
|
}
|
|
|
|
void ImageViewer::to8Bit()
|
|
{
|
|
toBitDepth(8);
|
|
}
|
|
|
|
void ImageViewer::to32Bit()
|
|
{
|
|
toBitDepth(32);
|
|
}
|
|
|
|
void ImageViewer::toBitDepth(int d)
|
|
{
|
|
image = image.convertDepth(d);
|
|
reconvertImage();
|
|
repaint( image.hasAlphaBuffer() );
|
|
}
|