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qgscomposition.cpp
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qgscomposition.cpp
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/***************************************************************************
qgscomposition.cpp
-------------------
begin : January 2005
copyright : (C) 2005 by Radim Blazek
email : blazek@itc.it
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgscomposition.h"
#include "qgscomposer.h"
#include "qgscomposeritem.h"
#include "qgscomposerlabel.h"
#include "qgscomposermap.h"
#include "qgscomposerpicture.h"
#include "qgscomposerscalebar.h"
#include "qgscomposervectorlegend.h"
#include "qgscomposerview.h"
#include "qgsmapcanvas.h"
#include "qgsproject.h"
#include <Q3CanvasRectangle>
#include <QMatrix>
#include <QMessageBox>
#include <iostream>
QgsCompositionPaper::QgsCompositionPaper ( QString name, int w, int h, bool c)
:mName(name), mWidth(w), mHeight(h), mCustom(c)
{
}
QgsCompositionPaper::~QgsCompositionPaper ( )
{
}
QgsComposition::QgsComposition( QgsComposer *c, int id )
{
setupUi(this);
connect(mPaperWidthLineEdit, SIGNAL(returnPressed()), this, SLOT(paperSizeChanged()));
connect(mPaperHeightLineEdit, SIGNAL(returnPressed()), this, SLOT(paperSizeChanged()));
connect(mPaperOrientationComboBox, SIGNAL(activated(int)), this, SLOT(paperSizeChanged()));
connect(mPaperSizeComboBox, SIGNAL(activated(int)), this, SLOT(paperSizeChanged()));
connect(mResolutionLineEdit, SIGNAL(returnPressed()), this, SLOT(resolutionChanged()));
#ifdef QGISDEBUG
std::cerr << "QgsComposition::QgsComposition()" << std::endl;
#endif
mId = id;
mNextItemId = 1;
mCanvas = 0;
mPaperItem = 0;
mComposer = c;
mMapCanvas = c->mapCanvas();
mView = c->view();
mSelectedItem = 0;
mPlotStyle = Preview;
// Attention: Qt4.1 writes line width to PS/PDF still as integer
// (using QPen->width() to get the value) so we MUST use mScale > 1
// Note: scale 10 make it inacceptable slow: QgsComposerMap 900x900mm on paper 1500x1000
// cannot be smoothly moved even if mPreviewMode == Rectangle and no zoom in
// scale 2 results in minimum line width 0.5 mmm which is too much
mScale = 5;
// Add paper sizes and set default.
mPapers.push_back ( QgsCompositionPaper( tr("Custom"), 0, 0, 1 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A5 (148x210 mm)"), 148, 210 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A4 (210x297 mm)"), 210, 297 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A3 (297x420 mm)"), 297, 420 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A2 (420x594 mm)"), 420, 594 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A1 (594x841 mm)"), 594, 841 ) );
mPapers.push_back ( QgsCompositionPaper( tr("A0 (841x1189 mm)"), 841, 1189 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B5 (176 x 250 mm)"), 176, 250 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B4 (250 x 353 mm)"), 250, 353 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B3 (353 x 500 mm)"), 353, 500 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B2 (500 x 707 mm)"), 500, 707 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B1 (707 x 1000 mm)"), 707, 1000 ) );
mPapers.push_back ( QgsCompositionPaper( tr("B0 (1000 x 1414 mm)"), 1000, 1414 ) );
mPapers.push_back ( QgsCompositionPaper( tr("Letter (8.5x11 inches)"), 216, 279 ) );
mPapers.push_back ( QgsCompositionPaper( tr("Legal (8.5x14 inches)"), 216, 356 ) );
mPaper = mDefaultPaper = mCustomPaper = 0;
for( int i = 0; i < mPapers.size(); i++ ) {
mPaperSizeComboBox->insertItem( mPapers[i].mName );
// Map - A4 land for now, if future read from template
if ( mPapers[i].mWidth == 210 && mPapers[i].mHeight == 297 ){
mDefaultPaper = i;
}
if ( mPapers[i].mCustom ) mCustomPaper = i;
}
// Orientation
mPaperOrientationComboBox->insertItem( tr("Portrait"), Portrait );
mPaperOrientationComboBox->insertItem( tr("Landscape"), Landscape );
mPaperOrientation = Landscape;
mPaperUnitsComboBox->insertItem( "mm" );
// Create canvas
mPaperWidth = 1;
mPaperHeight = 1;
createCanvas();
// Tool
mRectangleItem = 0;
mNewCanvasItem = 0;
mTool = Select;
mToolStep = 0;
}
void QgsComposition::createDefault(void)
{
mPaperSizeComboBox->setCurrentItem(mDefaultPaper);
mPaperOrientationComboBox->setCurrentItem(Landscape);
mUserPaperWidth = mPapers[mDefaultPaper].mWidth;
mUserPaperHeight = mPapers[mDefaultPaper].mHeight;
recalculate();
mResolution = 300;
setOptions();
// Add the map to coposition
/*
QgsComposerMap *m = new QgsComposerMap ( this, mNextItemId++,
mScale*15, mScale*15, mScale*180, mScale*180 );
mItems.push_back(m);
*/
// Add vector legend
/*
QgsComposerVectorLegend *vl = new QgsComposerVectorLegend ( this, mNextItemId++,
mScale*210, mScale*100, 10 );
mItems.push_back(vl);
*/
// Title
/*
QgsComposerLabel *tit = new QgsComposerLabel ( this, mNextItemId++,
mScale*238, mScale*40, "Map", 24 );
mItems.push_back(tit);
*/
// Tool
mRectangleItem = 0;
mNewCanvasItem = 0;
mTool = Select;
mToolStep = 0;
writeSettings();
}
void QgsComposition::createCanvas(void)
{
if ( mCanvas ) delete mCanvas;
mCanvas = new Q3Canvas ( (int) mPaperWidth * mScale, (int) mPaperHeight * mScale);
mCanvas->setBackgroundColor( QColor(180,180,180) );
// mCanvas->setDoubleBuffering( false ); // makes the move very unpleasant and doesn't make it faster
// Paper
if ( mPaperItem ) delete mPaperItem;
mPaperItem = new Q3CanvasRectangle( 0, 0, (int) mPaperWidth * mScale,
(int) mPaperHeight * mScale, mCanvas );
mPaperItem->setBrush( QColor(255,255,255) );
mPaperItem->setPen( QPen(QColor(0,0,0), 1) );
mPaperItem->setZ(0);
mPaperItem->setActive(false);
mPaperItem->show();
}
void QgsComposition::resizeCanvas(void)
{
mCanvas->resize ( (int) mPaperWidth * mScale, (int) mPaperHeight * mScale );
#ifdef QGISDEBUG
std::cout << "mCanvas width = " << mCanvas->width() << " height = " << mCanvas->height() << std::endl;
#endif
mPaperItem->setSize ( (int) mPaperWidth * mScale, (int) mPaperHeight * mScale );
}
QgsComposition::~QgsComposition()
{
#ifdef QGISDEBUG
std::cerr << "QgsComposition::~QgsComposition" << std::endl;
#endif
mView->setCanvas ( 0 );
if ( mPaperItem ) delete mPaperItem;
for (std::list < QgsComposerItem * >::iterator it = mItems.begin();
it != mItems.end(); ++it)
{
delete *it;
}
if ( mCanvas ) delete mCanvas;
}
QgsMapCanvas *QgsComposition::mapCanvas(void) { return mMapCanvas; }
void QgsComposition::setActive ( bool active )
{
if ( active ) {
mView->setCanvas ( mCanvas );
mComposer->showCompositionOptions ( this );
} else {
// TODO
}
}
void QgsComposition::contentsMousePressEvent(QMouseEvent* e)
{
#ifdef QGISDEBUG
std::cerr << "QgsComposition::contentsMousePressEvent() mTool = " << mTool << " mToolStep = "
<< mToolStep << std::endl;
#endif
QPoint p = mView->inverseWorldMatrix().map(e->pos());
mLastPoint = p;
double x,y;
mView->inverseWorldMatrix().map( e->pos().x(), e->pos().y(), &x, &y );
switch ( mTool ) {
case Select:
{
Q3CanvasItemList l = mCanvas->collisions(p);
Q3CanvasItem * newItem = 0;
for ( Q3CanvasItemList::Iterator it=l.fromLast(); it!=l.end(); --it) {
if (! (*it)->isActive() ) continue;
newItem = *it;
}
if ( newItem ) { // found
if ( newItem != mSelectedItem ) { // Show options
if ( mSelectedItem ) {
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (mSelectedItem);
coi->setSelected ( false );
}
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (newItem);
coi->setSelected ( true );
mComposer->showItemOptions ( coi->options() );
mSelectedItem = newItem;
}
mLastX = x;
mLastY = y;
} else { // not found
if ( mSelectedItem ) {
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (mSelectedItem);
coi->setSelected ( false );
}
mSelectedItem = 0;
mComposer->showItemOptions ( (QWidget *) 0 ); // hide old options
}
mCanvas->update();
}
break;
case AddMap:
#ifdef QGISDEBUG
std::cerr << "AddMap" << std::endl;
#endif
if ( mToolStep == 0 ) {
mRectangleItem = new Q3CanvasRectangle( p.x(), p.y(), 0, 0, mCanvas );
mRectangleItem->setBrush( Qt::NoBrush );
mRectangleItem->setPen( QPen(QColor(0,0,0), 1) );
mRectangleItem->setZ(100);
mRectangleItem->setActive(false);
mRectangleItem->show();
mToolStep = 1;
}
#ifdef QGISDEBUG
std::cerr << "mToolStep = " << mToolStep << std::endl;
#endif
break;
case AddVectorLegend:
{
mNewCanvasItem->setX( p.x() );
mNewCanvasItem->setY( p.y() );
QgsComposerVectorLegend *vl = dynamic_cast <QgsComposerVectorLegend*> (mNewCanvasItem);
vl->writeSettings();
mItems.push_back(vl);
mNewCanvasItem = 0;
mComposer->selectItem(); // usually just one legend
// Select and show options
vl->setSelected ( true );
mComposer->showItemOptions ( vl->options() );
mSelectedItem = dynamic_cast <Q3CanvasItem*> (vl);
mCanvas->update();
// Remember this position for later
mLastX = x;
mLastY = y;
}
break;
case AddLabel:
{
mNewCanvasItem->setX( p.x() );
mNewCanvasItem->setY( p.y() );
QgsComposerLabel *lab = dynamic_cast <QgsComposerLabel*> (mNewCanvasItem);
lab->writeSettings();
mItems.push_back(lab);
mNewCanvasItem = 0;
mComposer->selectItem(); // usually just one ???
// Select and show options
lab->setSelected ( true );
mComposer->showItemOptions ( lab->options() );
mSelectedItem = dynamic_cast <Q3CanvasItem*> (lab);
mCanvas->update();
// Remember this position for later
mLastX = x;
mLastY = y;
}
break;
case AddScalebar:
{
mNewCanvasItem->setX( p.x() );
mNewCanvasItem->setY( p.y() );
QgsComposerScalebar *sb = dynamic_cast <QgsComposerScalebar*> (mNewCanvasItem);
sb->writeSettings();
mItems.push_back(sb);
mNewCanvasItem = 0;
mComposer->selectItem(); // usually just one ???
// Select and show options
sb->setSelected ( true );
mComposer->showItemOptions ( sb->options() );
mSelectedItem = dynamic_cast <Q3CanvasItem*> (sb);
mCanvas->update();
// Remember this position for later
mLastX = x;
mLastY = y;
}
break;
case AddPicture:
{
//mNewCanvasItem->setX( p.x() );
//mNewCanvasItem->setY( p.y() );
QgsComposerPicture *pi = dynamic_cast <QgsComposerPicture*> (mNewCanvasItem);
//pi->setSize (0, 0);
pi->setBox ( p.x(), p.y(), p.x(), p.y() );
mCanvas->update();
mToolStep = 1;
}
break;
}
}
void QgsComposition::contentsMouseMoveEvent(QMouseEvent* e)
{
#ifdef QGISDEBUG
std::cerr << "QgsComposition::contentsMouseMoveEvent() mTool = " << mTool << " mToolStep = "
<< mToolStep << std::endl;
#endif
QPoint p = mView->inverseWorldMatrix().map(e->pos());
switch ( mTool ) {
case Select:
if ( mSelectedItem ) {
double x,y;
mView->inverseWorldMatrix().map( e->pos().x(), e->pos().y(), &x, &y );
mSelectedItem->moveBy ( x - mLastX, y - mLastY );
mLastX = x;
mLastY = y;
mCanvas->update();
}
break;
case AddMap:
if ( mToolStep == 1 ) { // draw rectangle
double x, y;
int w, h;
x = p.x() < mRectangleItem->x() ? p.x() : mRectangleItem->x();
y = p.y() < mRectangleItem->y() ? p.y() : mRectangleItem->y();
w = abs ( p.x() - (int)mRectangleItem->x() );
h = abs ( p.y() - (int)mRectangleItem->y() );
mRectangleItem->setX(x);
mRectangleItem->setY(y);
mRectangleItem->setSize(w,h);
mCanvas->update();
}
break;
case AddVectorLegend:
case AddLabel:
case AddScalebar:
mNewCanvasItem->move ( p.x(), p.y() );
mCanvas->update();
break;
case AddPicture:
if ( mToolStep == 1 ) { // draw rectangle
QgsComposerPicture *pi = dynamic_cast <QgsComposerPicture*> (mNewCanvasItem);
pi->setBox ( mLastPoint.x(), mLastPoint.y(), p.x(), p.y() );
/*
double x, y;
int w, h;
x = p.x() < pi->QCanvasRectangle::x() ? p.x() : pi->QCanvasRectangle::x();
y = p.y() < pi->QCanvasRectangle::y() ? p.y() : pi->QCanvasRectangle::y();
w = abs ( p.x() - (int)pi->QCanvasRectangle::x() );
h = abs ( p.y() - (int)pi->QCanvasRectangle::y() );
pi->setX(x);
pi->setY(y);
pi->setSize(w,h);
*/
mCanvas->update();
break;
}
}
}
void QgsComposition::contentsMouseReleaseEvent(QMouseEvent* e)
{
#ifdef QGISDEBUG
std::cerr << "QgsComposition::contentsMouseReleaseEvent() mTool = " << mTool
<< " mToolStep = " << mToolStep << std::endl;
#endif
QPoint p = mView->inverseWorldMatrix().map(e->pos());
switch ( mTool ) {
case AddMap: // mToolStep should be always 1 but rectangle can be 0 size
{
int x = (int) mRectangleItem->x();
int y = (int) mRectangleItem->y();
int w = mRectangleItem->width();
int h = mRectangleItem->height();
delete mRectangleItem;
mRectangleItem = 0;
if ( w > 0 && h > 0 ) {
mComposer->selectItem(); // usually just one map
QgsComposerMap *m = new QgsComposerMap ( this, mNextItemId++, x, y, w, h );
m->setUserExtent( mMapCanvas->extent());
mItems.push_back(m);
m->setSelected ( true );
if ( mSelectedItem ) {
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (mSelectedItem);
coi->setSelected ( false );
}
m->setSelected ( true );
mComposer->showItemOptions ( m->options() );
mSelectedItem = dynamic_cast <Q3CanvasItem *> (m);
} else {
mToolStep = 0;
}
mCanvas->setChanged ( QRect( x, y, w, h) ); // Should not be necessary
mCanvas->update();
}
break;
case AddPicture:
{
QgsComposerPicture *pi = dynamic_cast <QgsComposerPicture*> (mNewCanvasItem);
if ( mLastPoint.x()-p.x() != 0 && mLastPoint.y()-p.y() != 0 ) {
mNewCanvasItem = 0; // !!! Must be before mComposer->selectItem()
mComposer->selectItem(); // usually just one ???
pi->writeSettings();
mItems.push_back(pi);
pi->setSelected ( true );
mComposer->showItemOptions ( pi->options() );
mSelectedItem = dynamic_cast <Q3CanvasItem*> (pi);
mCanvas->update();
} else {
mToolStep = 0;
}
}
break;
case Select:
if ( mSelectedItem ) {
// the object was probably moved
QgsComposerItem *ci = dynamic_cast <QgsComposerItem *> (mSelectedItem);
ci->writeSettings();
}
break;
}
}
void QgsComposition::keyPressEvent ( QKeyEvent * e )
{
#ifdef QGISDEBUG
std::cout << "QgsComposition::keyPressEvent() key = " << e->key() << std::endl;
#endif
if ( e->key() == Qt::Key_Delete && mSelectedItem ) { // delete
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (mSelectedItem);
coi->setSelected ( false );
coi->removeSettings();
for (std::list < QgsComposerItem * >::iterator it = mItems.begin();
it != mItems.end(); ++it)
{
if ( (*it) == coi ) {
mItems.erase ( it );
break;
}
}
delete (mSelectedItem);
mSelectedItem = 0;
mCanvas->update();
}
}
void QgsComposition::paperSizeChanged ( void )
{
#ifdef QGISDEBUG
std::cout << "QgsComposition::paperSizeChanged" << std::endl;
#endif
mPaper = mPaperSizeComboBox->currentItem();
mPaperOrientation = mPaperOrientationComboBox->currentItem();
#ifdef QGISDEBUG
std::cout << "custom = " << mPapers[mPaper].mCustom << std::endl;
std::cout << "orientation = " << mPaperOrientation << std::endl;
#endif
if ( mPapers[mPaper].mCustom ) {
mUserPaperWidth = mPaperWidthLineEdit->text().toDouble();
mUserPaperHeight = mPaperHeightLineEdit->text().toDouble();
mPaperWidthLineEdit->setEnabled( TRUE );
mPaperHeightLineEdit->setEnabled( TRUE );
} else {
mUserPaperWidth = mPapers[mPaper].mWidth;
mUserPaperHeight = mPapers[mPaper].mHeight;
mPaperWidthLineEdit->setEnabled( FALSE );
mPaperHeightLineEdit->setEnabled( FALSE );
setOptions();
}
try
{
recalculate();
}
catch (std::bad_alloc& ba)
{
// A better solution here would be to set the canvas back to the
// original size and carry on, but for the moment this will
// prevent a crash due to an uncaught exception.
QMessageBox::critical( 0, tr("Out of memory"),
tr("Qgis is unable to resize the paper size due to "
"insufficient memory.\n It is best that you avoid "
"using the map composer until you restart qgis.\n") );
}
mView->repaintContents();
writeSettings();
}
void QgsComposition::recalculate ( void )
{
if ( (mPaperOrientation == Portrait && mUserPaperWidth < mUserPaperHeight) ||
(mPaperOrientation == Landscape && mUserPaperWidth > mUserPaperHeight) )
{
mPaperWidth = mUserPaperWidth;
mPaperHeight = mUserPaperHeight;
} else {
mPaperWidth = mUserPaperHeight;
mPaperHeight = mUserPaperWidth;
}
#ifdef QGISDEBUG
std::cout << "mPaperWidth = " << mPaperWidth << " mPaperHeight = " << mPaperHeight << std::endl;
#endif
resizeCanvas();
mComposer->zoomFull();
}
void QgsComposition::resolutionChanged ( void )
{
mResolution = mResolutionLineEdit->text().toInt();
writeSettings();
}
void QgsComposition::setOptions ( void )
{
mPaperSizeComboBox->setCurrentItem(mPaper);
mPaperOrientationComboBox->setCurrentItem(mPaperOrientation);
mPaperWidthLineEdit->setText ( QString("%1").arg(mUserPaperWidth,0,'g') );
mPaperHeightLineEdit->setText ( QString("%1").arg(mUserPaperHeight,0,'g') );
mResolutionLineEdit->setText ( QString("%1").arg(mResolution) );
}
void QgsComposition::setPlotStyle ( PlotStyle p )
{
mPlotStyle = p;
// Set all items
for (std::list < QgsComposerItem * >::iterator it = mItems.begin(); it != mItems.end(); ++it) {
(*it)->setPlotStyle( p ) ;
}
// Remove paper if Print, reset if Preview
if ( mPlotStyle == Print ) {
mPaperItem->setCanvas(0);
mCanvas->setBackgroundColor( Qt::white );
} else {
mPaperItem->setCanvas(mCanvas);
mCanvas->setBackgroundColor( QColor(180,180,180) );
}
}
double QgsComposition::viewScale ( void )
{
double scale = mView->worldMatrix().m11();
return scale;
}
void QgsComposition::refresh()
{
// TODO add signals to map canvas
for (std::list < QgsComposerItem * >::iterator it = mItems.begin(); it != mItems.end(); ++it) {
QgsComposerItem *ci = (*it);
if ( typeid (*ci) == typeid(QgsComposerMap) ) {
QgsComposerMap *cm = dynamic_cast<QgsComposerMap*>(ci);
cm->setCacheUpdated(false);
} else if ( typeid (*ci) == typeid(QgsComposerVectorLegend) ) {
QgsComposerVectorLegend *vl = dynamic_cast<QgsComposerVectorLegend*>(ci);
vl->recalculate();
}
}
}
int QgsComposition::id ( void ) { return mId; }
QgsComposer *QgsComposition::composer(void) { return mComposer; }
Q3Canvas *QgsComposition::canvas(void) { return mCanvas; }
double QgsComposition::paperWidth ( void ) { return mPaperWidth; }
double QgsComposition::paperHeight ( void ) { return mPaperHeight; }
int QgsComposition::paperOrientation ( void ) { return mPaperOrientation; }
int QgsComposition::resolution ( void ) { return mResolution; }
int QgsComposition::scale( void ) {
return mScale;
}
double QgsComposition::toMM ( int v ) { return v/mScale ; }
int QgsComposition::fromMM ( double v ) { return (int) (v * mScale); }
void QgsComposition::setTool ( Tool tool )
{
// Stop old in progress
mView->viewport()->setMouseTracking ( false ); // stop mouse tracking
if ( mSelectedItem ) {
QgsComposerItem *coi = dynamic_cast <QgsComposerItem *> (mSelectedItem);
coi->setSelected ( false );
mCanvas->update();
}
mSelectedItem = 0;
mComposer->showItemOptions ( (QWidget *) 0 );
if ( mNewCanvasItem ) {
mNewCanvasItem->setX( -1000 );
mNewCanvasItem->setY( -1000 );
mCanvas->update();
delete mNewCanvasItem;
mNewCanvasItem = 0;
}
if ( mRectangleItem ) {
delete mRectangleItem;
mRectangleItem = 0;
}
// Start new
if ( tool == AddVectorLegend ) { // Create temporary object
if ( mNewCanvasItem ) delete mNewCanvasItem;
// Create new object outside the visible area
QgsComposerVectorLegend *vl = new QgsComposerVectorLegend ( this, mNextItemId++,
(-1000)*mScale, (-1000)*mScale, (int) (mScale*mPaperHeight/50) );
mNewCanvasItem = dynamic_cast <Q3CanvasItem *> (vl);
mComposer->showItemOptions ( vl->options() );
mView->viewport()->setMouseTracking ( true ); // to recieve mouse move
} else if ( tool == AddLabel ) {
if ( mNewCanvasItem ) delete mNewCanvasItem;
// Create new object outside the visible area
QgsComposerLabel *lab = new QgsComposerLabel ( this, mNextItemId++,
(-1000)*mScale, (-1000)*mScale, tr("Label"), (int) (mScale*mPaperHeight/40) );
mNewCanvasItem = dynamic_cast <Q3CanvasItem *> (lab);
mComposer->showItemOptions ( lab->options() );
mView->viewport()->setMouseTracking ( true ); // to recieve mouse move
} else if ( tool == AddScalebar ) {
if ( mNewCanvasItem ) delete mNewCanvasItem;
// Create new object outside the visible area
QgsComposerScalebar *sb = new QgsComposerScalebar ( this, mNextItemId++,
(-1000)*mScale, (-1000)*mScale );
mNewCanvasItem = dynamic_cast <Q3CanvasItem *> (sb);
mComposer->showItemOptions ( sb->options() );
mView->viewport()->setMouseTracking ( true ); // to recieve mouse move
} else if ( tool == AddPicture ) {
if ( mNewCanvasItem ) delete mNewCanvasItem;
while ( 1 )
{
QString file = QgsComposerPicture::pictureDialog();
if ( file.isNull() )
{
// TODO: This is not nice, because selectItem() calls
// this function, do it better
mComposer->selectItem();
tool = Select;
break;
}
// Create new object outside the visible area
QgsComposerPicture *pi = new QgsComposerPicture ( this, mNextItemId++, file );
if ( pi->pictureValid() )
{
std::cout << "picture is valid" << std::endl;
mNewCanvasItem = dynamic_cast <Q3CanvasItem *> (pi);
mComposer->showItemOptions ( pi->options() );
mView->viewport()->setMouseTracking ( true ); // to recieve mouse move
break;
}
else
{
QMessageBox::warning( 0, tr("Warning"),
tr("Cannot load picture.") );
delete pi;
}
}
}
mTool = tool;
mToolStep = 0;
}
std::vector<QgsComposerMap*> QgsComposition::maps(void)
{
std::vector<QgsComposerMap*> v;
for (std::list < QgsComposerItem * >::iterator it = mItems.begin(); it != mItems.end(); ++it) {
QgsComposerItem *ci = (*it);
if ( typeid (*ci) == typeid(QgsComposerMap) ) {
v.push_back ( dynamic_cast<QgsComposerMap*>(ci) );
}
}
return v;
}
QgsComposerMap* QgsComposition::map ( int id )
{
for (std::list < QgsComposerItem * >::iterator it = mItems.begin(); it != mItems.end(); ++it) {
QgsComposerItem *ci = (*it);
if ( ci->id() == id ) {
return ( dynamic_cast<QgsComposerMap*>(ci) );
}
}
return 0;
}
int QgsComposition::selectionBoxSize ( void )
{
// Scale rectangle, keep rectangle of fixed size in screen points
return (int) (7/viewScale());
}
QPen QgsComposition::selectionPen ( void )
{
return QPen( QColor(0,0,255), 0) ;
}
QBrush QgsComposition::selectionBrush ( void )
{
return QBrush ( QBrush(QColor(0,0,255), Qt::SolidPattern) );
}
void QgsComposition::emitMapChanged ( int id )
{
emit mapChanged ( id );
}
bool QgsComposition::writeSettings ( void )
{
QString path, val;
path.sprintf("/composition_%d/", mId );
QgsProject::instance()->writeEntry( "Compositions", path+"width", mUserPaperWidth );
QgsProject::instance()->writeEntry( "Compositions", path+"height", mUserPaperHeight );
QgsProject::instance()->writeEntry( "Compositions", path+"resolution", mResolution );
if ( mPaperOrientation == Landscape ) {
val = "landscape";
} else {
val = "portrait";
}
QgsProject::instance()->writeEntry( "Compositions", path+"orientation", val );
return true;
}
bool QgsComposition::readSettings ( void )
{
#ifdef QGISDEBUG
std::cout << "QgsComposition::readSettings" << std::endl;
#endif
bool ok;
mPaper = mCustomPaper;
QString path, val;
path.sprintf("/composition_%d/", mId );
mUserPaperWidth = QgsProject::instance()->readDoubleEntry( "Compositions", path+"width", 297, &ok);
mUserPaperHeight = QgsProject::instance()->readDoubleEntry( "Compositions", path+"height", 210, &ok);
mResolution = QgsProject::instance()->readNumEntry( "Compositions", path+"resolution", 300, &ok);
val = QgsProject::instance()->readEntry( "Compositions", path+"orientation", "landscape", &ok);
if ( val.compare("landscape") == 0 ) {
mPaperOrientation = Landscape;
} else {
mPaperOrientation = Portrait;
}
recalculate();
setOptions();
// Create objects
path.sprintf("/composition_%d", mId );
QStringList el = QgsProject::instance()->subkeyList ( "Compositions", path );
// First maps because they can be used by other objects
for ( QStringList::iterator it = el.begin(); it != el.end(); ++it ) {
#ifdef QGISDEBUG
std::cout << "key: " << (*it).toLocal8Bit().data() << std::endl;
#endif
QStringList l = QStringList::split( '_', (*it) );
if ( l.size() == 2 ) {
QString name = l.first();
QString ids = l.last();
int id = ids.toInt();
if ( name.compare("map") == 0 ) {
QgsComposerMap *map = new QgsComposerMap ( this, id );
mItems.push_back(map);
}
if ( id >= mNextItemId ) mNextItemId = id + 1;
}
}
for ( QStringList::iterator it = el.begin(); it != el.end(); ++it ) {
#ifdef QGISDEBUG
std::cout << "key: " << (*it).toLocal8Bit().data() << std::endl;
#endif
QStringList l = QStringList::split( '_', (*it) );
if ( l.size() == 2 ) {
QString name = l.first();
QString ids = l.last();
int id = ids.toInt();
if ( name.compare("vectorlegend") == 0 ) {
QgsComposerVectorLegend *vl = new QgsComposerVectorLegend ( this, id );
mItems.push_back(vl);
} else if ( name.compare("label") == 0 ) {
QgsComposerLabel *lab = new QgsComposerLabel ( this, id );
mItems.push_back(lab);
} else if ( name.compare("scalebar") == 0 ) {
QgsComposerScalebar *sb = new QgsComposerScalebar ( this, id );
mItems.push_back(sb);
} else if ( name.compare("picture") == 0 ) {
QgsComposerPicture *pi = new QgsComposerPicture ( this, id );
mItems.push_back(pi);
}
if ( id >= mNextItemId ) mNextItemId = id + 1;
}
}
mCanvas->update();
return true;
}