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Fichier > exporter permet desormais d'enregistrer les schemas au format SVG.

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@159 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
xavierqet
2007-10-05 12:06:39 +00:00
parent 7b71cbb7ae
commit 579783bba5
5 changed files with 93 additions and 38 deletions
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112
exportdialog.cpp
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@@ -1,4 +1,6 @@
#include "exportdialog.h"
#include <QSvgGenerator>
#include <QtXml>
/**
Constructeur
@@ -14,6 +16,9 @@ ExportDialog::ExportDialog(Diagram *dia, QWidget *parent) : QDialog(parent) {
diagram_ratio = (qreal)diagram_size.width() / (qreal)diagram_size.height();
dontchangewidth = dontchangeheight = false;
// vecteur contenant 256 nuances de gris, pour exporter les images sans couleur
for (int i = 0 ; i < 256 ; ++ i) ColorTab << qRgb(i, i, i);
// la taille du dialogue est fixee
setFixedSize(800, 360);
setWindowTitle(tr("Exporter"));
@@ -174,6 +179,7 @@ QWidget *ExportDialog::leftPart() {
format -> addItem(tr("PNG (*.png)"), "PNG");
format -> addItem(tr("JPEG (*.jpg)"), "JPG");
format -> addItem(tr("Bitmap (*.bmp)"), "BMP");
format -> addItem(tr("SVG (*.svg)"), "SVG");
vboxLayout -> addLayout(hboxLayout1);
@@ -248,7 +254,7 @@ void ExportDialog::slot_chooseAFile() {
this,
tr("Exporter vers le fichier"),
QDir::homePath(),
tr("Images (*.png *.bmp *.jpg)")
tr("Images (*.png *.bmp *.jpg *.svg)")
);
if (user_file != "") {
diagram_path = user_file;
@@ -261,22 +267,11 @@ void ExportDialog::slot_chooseAFile() {
@return l'image a exporter
*/
QImage ExportDialog::generateImage() {
// memorise les parametres relatifs au schema
bool state_drawBorder = diagram -> border_and_inset.borderIsDisplayed();
bool state_drawColumns = diagram -> border_and_inset.columnsAreDisplayed();
bool state_drawInset = diagram -> border_and_inset.insetIsDisplayed();
bool state_drawGrid = diagram -> displayGrid();
bool state_drawTerm = diagram -> drawTerminals();
bool state_useBorder = diagram -> useBorder();
saveReloadDiagramParameters(true);
// genere l'image
diagram -> setUseBorder(export_border -> isChecked());
diagram -> setDrawTerminals(draw_terminals -> isChecked());
diagram -> setDisplayGrid(draw_grid -> isChecked());
diagram -> border_and_inset.displayBorder(draw_border -> isChecked());
diagram -> border_and_inset.displayColumns(draw_columns -> isChecked());
diagram -> border_and_inset.displayInset(draw_inset -> isChecked());
QImage image = diagram -> toImage(
QImage image(width -> value(), height -> value(), QImage::Format_RGB32);
diagram -> toPaintDevice(
image,
width -> value(),
height -> value(),
keep_aspect_ratio -> isChecked() ? Qt::KeepAspectRatio : Qt::IgnoreAspectRatio
@@ -284,22 +279,79 @@ QImage ExportDialog::generateImage() {
// convertit l'image en niveaux de gris si besoin
if (!keep_colors -> isChecked()) {
QVector<QRgb> ColorTab;
for (int i = 0 ; i < 256 ; ++ i) ColorTab << qRgb(i, i, i);
image = image.convertToFormat(QImage::Format_Indexed8, ColorTab, Qt::ThresholdDither);
}
// restaure les parametres relatifs au schema
diagram -> border_and_inset.displayBorder(state_drawBorder);
diagram -> border_and_inset.displayColumns(state_drawColumns);
diagram -> border_and_inset.displayInset(state_drawInset);
diagram -> setDisplayGrid(state_drawGrid);
diagram -> setDrawTerminals(state_drawTerm);
diagram -> setUseBorder(state_useBorder);
saveReloadDiagramParameters(false);
return(image);
}
/**
Sauve ou restaure les parametres du schema
@param save true pour memoriser les parametres du schema et appliquer ceux
definis par le formulaire, false pour restaurer les parametres
*/
void ExportDialog::saveReloadDiagramParameters(bool save) {
static bool state_drawBorder;
static bool state_drawColumns;
static bool state_drawInset;
static bool state_drawGrid;
static bool state_drawTerm;
static bool state_useBorder;
if (save) {
// memorise les parametres relatifs au schema
state_drawBorder = diagram -> border_and_inset.borderIsDisplayed();
state_drawColumns = diagram -> border_and_inset.columnsAreDisplayed();
state_drawInset = diagram -> border_and_inset.insetIsDisplayed();
state_drawGrid = diagram -> displayGrid();
state_drawTerm = diagram -> drawTerminals();
state_useBorder = diagram -> useBorder();
diagram -> setUseBorder(export_border -> isChecked());
diagram -> setDrawTerminals(draw_terminals -> isChecked());
diagram -> setDisplayGrid(draw_grid -> isChecked());
diagram -> border_and_inset.displayBorder(draw_border -> isChecked());
diagram -> border_and_inset.displayColumns(draw_columns -> isChecked());
diagram -> border_and_inset.displayInset(draw_inset -> isChecked());
} else {
// restaure les parametres relatifs au schema
diagram -> border_and_inset.displayBorder(state_drawBorder);
diagram -> border_and_inset.displayColumns(state_drawColumns);
diagram -> border_and_inset.displayInset(state_drawInset);
diagram -> setDisplayGrid(state_drawGrid);
diagram -> setDrawTerminals(state_drawTerm);
diagram -> setUseBorder(state_useBorder);
}
}
/**
Exporte le schema en SVG
@param file Fichier dans lequel sera enregistre le code SVG
*/
void ExportDialog::generateSvg(QFile &file) {
saveReloadDiagramParameters(true);
// genere une QPicture a partir du schema
QPicture picture;
diagram -> toPaintDevice(
picture,
width -> value(),
height -> value(),
keep_aspect_ratio -> isChecked() ? Qt::KeepAspectRatio : Qt::IgnoreAspectRatio
);
// "joue" la QPicture sur un QSvgGenerator
QSvgGenerator svg_engine;
svg_engine.setSize(QSize(width -> value(), height -> value()));
svg_engine.setOutputDevice(&file);
QPainter svg_painter(&svg_engine);
picture.play(&svg_painter);
/// @todo gerer l'enlevement des couleurs
saveReloadDiagramParameters(false);
}
/**
Slot effectuant les verifications necessaires apres la validation du
dialogue.
@@ -341,17 +393,19 @@ void ExportDialog::slot_check() {
// ouvre le fichier
QFile fichier(diagram_path);
QImage image = generateImage();
// enregistre l'image dans le fichier
image.save(&fichier, format_acronym.toUtf8().data());
if (format_acronym == "SVG") {
generateSvg(fichier);
} else {
QImage image = generateImage();
image.save(&fichier, format_acronym.toUtf8().data());
}
fichier.close();
// fermeture du dialogue
accept();
}
/**
Slot appele lorsque l'utilisateur change la zone du schema qui doit etre
exportee. Il faut alors calculer le nouveau ratio et corriger les