syntilista: src/main.cpp comparison

comparison src/main.cpp @ 114:a5c8741b8662

Initial prototype support for printing list of users + print preview dialog. Has some issues currently.

author	Matti Hamalainen <ccr@tnsp.org>
date	Wed, 05 Jul 2017 12:48:55 +0300
parents	907f2ddf6801
children	71cfb7d96cfc

comparison

equal deleted inserted replaced

-:907f2ddf6801
+:a5c8741b8662
 // included file "COPYING" for exact terms.
 //
 #include <QApplication>
 #include <QMessageBox>
 #include <QSettings>
+#include <QPrintDialog>
+#include <QPrintPreviewDialog>
+#include <QProgressDialog>
 #include "main.h"
 #include "ui_mainwindow.h"
 #include "ui_editperson.h"
 #include "ui_aboutwindow.h"
 new QShortcut(QKeySequence(Qt::Key_PageUp), this, SLOT(selectRowPrev()));
 new QShortcut(QKeySequence(Qt::Key_PageDown), this, SLOT(selectRowNext()));
 new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Return), this, SLOT(focusDebtEdit()));
+new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_P), this, SLOT(on_button_Print_clicked()));
 }
 //
 // Application main window destructor
 void SyntilistaMainWindow::on_button_About_clicked()
 {
 new AboutWindow(this);
+}
+void SyntilistaMainWindow::on_button_Print_clicked()
+{
+// Create a printer object and force some basic settings
+QPrinter printer(QPrinter::HighResolution);
+printer.setPageSize(QPageSize(QPageSize::A4));
+printer.setColorMode(QPrinter::GrayScale);
+printer.setResolution(300);
+// We need to get the page count here, and also need it again in
+// printDocument(), but there is no sane way to pass that there,
+// so some code duplication is unfortunately necessary
+SLPageInfo pinfo;
+pinfo.npages = 0;
+pinfo.nlinesPerPage = 0;
+QPixmap tmpPixmap(1000, 1300);
+QPainter tmpPainter;
+tmpPainter.begin(&tmpPixmap);
+bool ret = printDocumentPage(pinfo, true, -1, &tmpPainter, &printer);
+tmpPainter.end();
+if (!ret)
+{
+// Some kind of error occured
+return;
+}
+// Set available pages
+printer.setFromTo(1, pinfo.npages);
+// Create print preview dialog and show it
+QPrintPreviewDialog preview(&printer, this);
+preview.setSizeGripEnabled(true);
+connect(
+&preview,
+SIGNAL(paintRequested(QPrinter *)),
+this,
+SLOT(printDocument(QPrinter *)));
+preview.exec();
+}
+void SyntilistaMainWindow::printDocument(QPrinter *printer)
+{
+// Create progress dialog
+QProgressDialog progress(
+tr("Tulostetaan ..."),
+tr("Peruuta"),
+0,
+1,
+this);
+// Again, get the page info here .. we need the number of lines per page
+SLPageInfo pinfo;
+pinfo.npages = 0;
+pinfo.nlinesPerPage = 0;
+QPixmap tmpPixmap(1000, 1300);
+QPainter tmpPainter;
+tmpPainter.begin(&tmpPixmap);
+bool ret = printDocumentPage(pinfo, true, -1, &tmpPainter, printer);
+tmpPainter.end();
+if (!ret)
+return;
+// Setup rest of the progress dialog here
+progress.setWindowModality(Qt::ApplicationModal);
+progress.setMinimum(printer->fromPage() - 1);
+progress.setMaximum(printer->toPage());
+// Begin painting to the printer (or preview)
+QPainter painter;
+painter.begin(printer);
+bool firstPage = true;
+for (int page = printer->fromPage(); page <= printer->toPage(); page++)
+{
+if (!firstPage)
+printer->newPage();
+qApp->processEvents();
+if (progress.wasCanceled())
+break;
+printDocumentPage(pinfo, false, page, &painter, printer);
+progress.setValue(page);
+firstPage = false;
+}
+painter.end();
+}
+bool SyntilistaMainWindow::printDocumentPage(SLPageInfo &pinfo, const bool getPageInfo, const int npage, QPainter *pt, QPrinter *printer)
+{
+// Form the SQL query for list of users
+QString querystr = QStringLiteral(
+"SELECT id,first_name,last_name,extra_info,added,updated, "
+"(SELECT TOTAL(value) FROM transactions WHERE transactions.person=people.id) AS balance "
+"FROM people ORDER BY last_name ASC,first_name ASC");
+// If we are fetching page info, we need to process all entries
+if (!getPageInfo)
+{
+// Otherwise we can limit to given page number
+querystr += QStringLiteral(" LIMIT %1 OFFSET %2").
+arg(pinfo.nlinesPerPage).
+arg((npage - 1) * pinfo.nlinesPerPage);
+}
+QSqlQuery query;
+query.prepare(querystr);
+query.setForwardOnly(true);
+query.exec();
+if (!slCheckAndReportSQLError("printDocumentPage()", query.lastError()))
+{
+slErrorMsg(
+tr("SQL-tietokantavirhe"),
+tr("Tietokantaa selattaessa tapahtui virhe."));
+return false;
+}
+pt->save();
+if (!getPageInfo)
+{
+pt->scale(
+printer->pageRect().width() / 1000.0f,
+printer->pageRect().height() / 1300.0f);
+}
+QFont font1("Arial", 5);
+SLDrawContext ctx(pt);
+ctx.setFont(font1);
+int nline = 0;
+while (query.next())
+{
+PersonInfo info;
+slGetPersonInfoRec(query, info);
+// Check for end of page
+// KLUDGE for now
+if (getPageInfo &&
+ctx.m_pos.y() + (ctx.boundRect().height() * 4) >= 1300.0f / 2.0f)
+{
+if (nline > pinfo.nlinesPerPage)
+pinfo.nlinesPerPage = nline;
+pinfo.npages++;
+nline = 0;
+}
+if (nline == 0)
+{
+// If we are at the start of the page, we shall draw a header
+pt->setBrush(QBrush(Qt::black));
+pt->setPen(QPen(Qt::black, 3, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+ctx.setPos(0, 0);
+ctx.drawText(   5,  180, "Etunimi");
+ctx.drawText( 200,  230, "Sukunimi");
+ctx.drawText( 450,  190, "Lisätty");
+ctx.drawText( 650,  190, "Päivitetty");
+ctx.drawText( 870,  120, "Tase");
+ctx.lf();
+pt->drawLine(0, ctx.m_pos.y(), 1000, ctx.m_pos.y());
+ctx.move(0, 5);
+}
+// Draw a gray bar under every second line
+if (nline % 2 == 0)
+{
+pt->fillRect(
+0,
+ctx.m_pos.y() - 1,
+1000,
+ctx.boundRect().height() + 4,
+QColor(0, 0, 0, 40));
+}
+ctx.drawText(   5,  180, info.firstName);
+ctx.drawText( 200,  230, info.lastName);
+ctx.drawText( 450,  190, slDateTimeToStr(info.added));
+ctx.drawText( 650,  190, slDateTimeToStr(info.updated));
+ctx.drawText( 870,  120, slMoneyValueToStr(info.balance), Qt::AlignRight);
+ctx.lf(10);
+nline++;
+}
+query.finish();
+if (getPageInfo)
+{
+if (nline > pinfo.nlinesPerPage)
+pinfo.nlinesPerPage = nline;
+pinfo.npages++;
+}
+else
+{
+ctx.setPos(0, 1240);
+ctx.drawText(0, 1000,
+QStringLiteral("Sivu %1 / %2").
+arg(npage).arg(printer->toPage()),
+Qt::AlignHCenter);
+}
+pt->restore();
+return true;
 }
 void SyntilistaMainWindow::on_button_DeletePerson_clicked()
 {

Mercurial > hg > syntilista

comparison src/main.cpp @ 114:a5c8741b8662