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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /examples/drawdemo
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'examples/drawdemo')
-rw-r--r--examples/drawdemo/README2
-rw-r--r--examples/drawdemo/drawdemo.cpp312
-rw-r--r--examples/drawdemo/drawdemo.doc17
-rw-r--r--examples/drawdemo/drawdemo.pro10
4 files changed, 341 insertions, 0 deletions
diff --git a/examples/drawdemo/README b/examples/drawdemo/README
new file mode 100644
index 000000000..273004043
--- /dev/null
+++ b/examples/drawdemo/README
@@ -0,0 +1,2 @@
+The drawdemo program demonstrates several drawing functions and printer
+output.
diff --git a/examples/drawdemo/drawdemo.cpp b/examples/drawdemo/drawdemo.cpp
new file mode 100644
index 000000000..63211057e
--- /dev/null
+++ b/examples/drawdemo/drawdemo.cpp
@@ -0,0 +1,312 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for TQt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qwidget.h>
+#include <qpainter.h>
+#include <qprinter.h>
+#include <qpushbutton.h>
+#include <qradiobutton.h>
+#include <qbuttongroup.h>
+#include <qapplication.h>
+#include <math.h>
+
+//
+// First we define the functionality our demo should present
+// to the user. You might add different demo-modes if you wish so.
+//
+
+//
+// This function draws a color wheel.
+// The coordinate system x=(0..500), y=(0..500) spans the paint device.
+//
+
+void drawColorWheel( TQPainter *p )
+{
+ TQFont f( "times", 18, TQFont::Bold );
+ p->setFont( f );
+ p->setPen( TQt::black );
+ p->setWindow( 0, 0, 500, 500 ); // defines coordinate system
+
+ for ( int i=0; i<36; i++ ) { // draws 36 rotated rectangles
+
+ TQWMatrix matrix;
+ matrix.translate( 250.0F, 250.0F ); // move to center
+ matrix.shear( 0.0F, 0.3F ); // twist it
+ matrix.rotate( (float)i*10 ); // rotate 0,10,20,.. degrees
+ p->setWorldMatrix( matrix ); // use this world matrix
+
+ TQColor c;
+ c.setHsv( i*10, 255, 255 ); // rainbow effect
+ p->setBrush( c ); // solid fill with color c
+ p->drawRect( 70, -10, 80, 10 ); // draw the rectangle
+
+ TQString n;
+ n.sprintf( "H=%d", i*10 );
+ p->drawText( 80+70+5, 0, n ); // draw the hue number
+ }
+}
+
+
+//
+// This function draws a few lines of text using different fonts.
+//
+
+void drawFonts( TQPainter *p )
+{
+ static const char *fonts[] = { "Helvetica", "Courier", "Times", 0 };
+ static int sizes[] = { 10, 12, 18, 24, 36, 0 };
+ int f = 0;
+ int y = 0;
+ while ( fonts[f] ) {
+ int s = 0;
+ while ( sizes[s] ) {
+ TQFont font( fonts[f], sizes[s] );
+ p->setFont( font );
+ TQFontMetrics fm = p->fontMetrics();
+ y += fm.ascent();
+ p->drawText( 10, y, "Quartz Glyph Job Vex'd Cwm Finks" );
+ y += fm.descent();
+ s++;
+ }
+ f++;
+ }
+}
+
+
+//
+// This function draws some shapes
+//
+
+void drawShapes( TQPainter *p )
+{
+ TQBrush b1( TQt::blue );
+ TQBrush b2( TQt::green, TQt::Dense6Pattern ); // green 12% fill
+ TQBrush b3( TQt::NoBrush ); // void brush
+ TQBrush b4( TQt::CrossPattern ); // black cross pattern
+
+ p->setPen( TQt::red );
+ p->setBrush( b1 );
+ p->drawRect( 10, 10, 200, 100 );
+ p->setBrush( b2 );
+ p->drawRoundRect( 10, 150, 200, 100, 20, 20 );
+ p->setBrush( b3 );
+ p->drawEllipse( 250, 10, 200, 100 );
+ p->setBrush( b4 );
+ p->drawPie( 250, 150, 200, 100, 45*16, 90*16 );
+}
+
+
+typedef void (*draw_func)(TQPainter*);
+
+struct DrawThing {
+ draw_func f;
+ const char *name;
+};
+
+//
+// All previously implemented functions are collected
+// in the following "table".
+// If you implement different functionality, your new draw
+// function must be assigned here with a function pointer and
+// description.
+// Leave the zeros at the end, they will be used
+// as markers referring to the end of the array.
+//
+
+DrawThing ourDrawFunctions[] = {
+// name of the function, title presented to the user
+ { drawColorWheel, "Draw color wheel" },
+ { drawFonts, "Draw fonts" },
+ { drawShapes, "Draw shapes" },
+ { 0, 0 } };
+
+
+
+class DrawView : public TQWidget
+{
+ Q_OBJECT
+public:
+ DrawView();
+ ~DrawView();
+public slots:
+ void updateIt( int );
+ void printIt();
+protected:
+ void drawIt( TQPainter * );
+ void paintEvent( TQPaintEvent * );
+ void resizeEvent( TQResizeEvent * );
+private:
+ TQPrinter *printer;
+ TQButtonGroup *bgroup;
+ TQPushButton *print;
+ int drawindex;
+ int maxindex;
+};
+
+
+//
+// Construct the DrawView with buttons.
+//
+
+DrawView::DrawView()
+{
+ setCaption( "TQt Draw Demo Application" );
+ setBackgroundMode(PaletteBase);
+
+ // Create a button group to contain all buttons
+ bgroup = new TQButtonGroup( this );
+ bgroup->resize( 200, 200 );
+ connect( bgroup, SIGNAL(clicked(int)), SLOT(updateIt(int)) );
+
+ // Calculate the size for the radio buttons
+ int maxwidth = 80;
+ int maxheight = 10;
+ int i;
+ const char *n;
+ TQFontMetrics fm = bgroup->fontMetrics();
+
+ // Find out the longest function description.
+ // Here we make use of the last "0,0"-entry in the
+ // ourDrawFunctions-array.
+ for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) {
+ int w = fm.width( n );
+ maxwidth = TQMAX(w,maxwidth); // TQMAX is a macro defined in qglobal.h
+ // and returns the biggest of to values.
+ // Due to its macro nature one should use it with care and with
+ // constant parameters only.
+ }
+
+ maxwidth = maxwidth + 30; // allow 30 pixels for radiobuttons
+
+ for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) {
+ TQRadioButton *rb = new TQRadioButton( n, bgroup );
+ rb->setGeometry( 10, i*30+10, maxwidth, 30 );
+
+ maxheight += 30;
+
+ if ( i == 0 )
+ rb->setChecked( TRUE );
+ }
+
+ maxheight += 10; // maxheight is now 10 pixels upper margin
+ // plus number_of_drawfunctions * 30
+ // plus 10 pixels lower margin
+
+ drawindex = 0; // draw first thing
+ maxindex = i;
+
+ maxwidth += 20; // add some margin, this results in the
+ // final width of bgroup
+
+ bgroup->resize( maxwidth, maxheight ); // resize bgroup to its final size
+ // when no printersupport is provided
+
+
+// If -- at compile time -- printer support will be disabled,
+// we won't set up printing functionality.
+
+#ifndef QT_NO_PRINTER
+
+ printer = new TQPrinter;
+
+ // Create and setup the print button
+ print = new TQPushButton( "Print...", bgroup );
+ print->resize( 80, 30 );
+ print->move( maxwidth/2 - print->width()/2, maxindex*30+20 );
+ connect( print, SIGNAL(clicked()), SLOT(printIt()) );
+
+ // Resize bgroup to its final size when printersupport is given.
+ bgroup->resize( maxwidth, print->y()+print->height()+10 );
+
+#endif
+
+ resize( 640,300 );
+}
+
+//
+// Clean up.
+//
+DrawView::~DrawView()
+{
+#ifndef QT_NO_PRINTER
+ delete printer;
+#endif
+}
+
+//
+// Called when a radio button is clicked.
+//
+
+void DrawView::updateIt( int index )
+{
+ if ( index < maxindex ) {
+ drawindex = index;
+ update();
+ }
+}
+
+//
+// Calls the drawing function as specified by the radio buttons.
+//
+
+void DrawView::drawIt( TQPainter *p )
+{
+ (*ourDrawFunctions[drawindex].f)(p);
+}
+
+//
+// Called when the print button is clicked.
+//
+
+void DrawView::printIt()
+{
+ if ( printer->setup( this ) ) {
+ TQPainter paint;
+ if( !paint.begin( printer ) )
+ return;
+ drawIt( &paint );
+ }
+}
+
+//
+// Called when the widget needs to be updated.
+//
+
+void DrawView::paintEvent( TQPaintEvent * )
+{
+ TQPainter paint( this );
+ drawIt( &paint );
+}
+
+//
+// Called when the widget has been resized.
+// Moves the button group to the upper right corner
+// of the widget.
+
+void DrawView::resizeEvent( TQResizeEvent * )
+{
+ bgroup->move( width()-bgroup->width(), 0 );
+}
+
+
+//
+// Create and display our widget.
+//
+
+#include "drawdemo.moc"
+
+int main( int argc, char **argv )
+{
+ TQApplication app( argc, argv );
+ DrawView draw;
+ app.setMainWidget( &draw );
+ draw.setCaption("TQt Example - Drawdemo");
+ draw.show();
+ return app.exec();
+}
diff --git a/examples/drawdemo/drawdemo.doc b/examples/drawdemo/drawdemo.doc
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index 000000000..f25bd7ee6
--- /dev/null
+++ b/examples/drawdemo/drawdemo.doc
@@ -0,0 +1,17 @@
+/*
+*/
+/*! \page drawdemo-example.html
+
+ \ingroup examples
+ \title Draw Demo
+
+ This example demonstrates several drawing functions and printer output.
+ You can easily add you own drawing functions.
+
+ <hr>
+
+ Implementation:
+
+ \include drawdemo/drawdemo.cpp
+*/
+
diff --git a/examples/drawdemo/drawdemo.pro b/examples/drawdemo/drawdemo.pro
new file mode 100644
index 000000000..92d70c542
--- /dev/null
+++ b/examples/drawdemo/drawdemo.pro
@@ -0,0 +1,10 @@
+TEMPLATE = app
+TARGET = drawdemo
+
+CONFIG += qt warn_on release
+DEPENDPATH = ../../include
+
+REQUIRES = full-config
+
+HEADERS =
+SOURCES = drawdemo.cpp