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This example shows how to set a mouse cursor for a widget.
Implementation:
/**************************************************************************** ** $Id: qt/cursor.cpp 3.1.2 edited Nov 8 10:35 $ ** ** Copyright (C) 1992-2000 Trolltech AS. 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 <qlabel.h> #include <qbitmap.h> #include <qapplication.h> #include <qlayout.h> #include <qcursor.h> // cb_bits and cm_bits were generated by X bitmap program. #define cb_width 32 #define cb_height 32 static unsigned char cb_bits[] = { // cursor bitmap 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x0f, 0x00, 0x00, 0x06, 0x30, 0x00, 0x80, 0x01, 0xc0, 0x00, 0x40, 0x00, 0x00, 0x01, 0x20, 0x00, 0x00, 0x02, 0x10, 0x00, 0x00, 0x04, 0x08, 0x3e, 0x3e, 0x08, 0x08, 0x03, 0xe0, 0x08, 0xc4, 0x00, 0x00, 0x11, 0x04, 0x1e, 0x78, 0x10, 0x02, 0x0c, 0x30, 0x20, 0x02, 0x40, 0x00, 0x20, 0x02, 0x40, 0x00, 0x20, 0x02, 0x40, 0x00, 0x20, 0x02, 0x20, 0x04, 0x20, 0x02, 0x20, 0x04, 0x20, 0x02, 0x10, 0x08, 0x20, 0x02, 0x08, 0x08, 0x20, 0x02, 0xf0, 0x07, 0x20, 0x04, 0x00, 0x00, 0x10, 0x04, 0x00, 0x00, 0x10, 0x08, 0x00, 0xc0, 0x08, 0x08, 0x3c, 0x30, 0x08, 0x10, 0xe6, 0x19, 0x04, 0x20, 0x00, 0x0f, 0x02, 0x40, 0x00, 0x00, 0x01, 0x80, 0x01, 0xc0, 0x00, 0x00, 0x06, 0x30, 0x00, 0x00, 0xf8, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00}; #define cm_width 32 #define cm_height 32 static unsigned char cm_bits[] = { // cursor bitmap mask 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x1f, 0x00, 0x00, 0xfe, 0x3f, 0x00, 0x80, 0x07, 0xf0, 0x00, 0xc0, 0x01, 0xc0, 0x01, 0x60, 0x00, 0x00, 0x03, 0x30, 0x00, 0x00, 0x06, 0x18, 0x00, 0x00, 0x0c, 0x0c, 0x3e, 0x3e, 0x18, 0x0e, 0x03, 0xe0, 0x18, 0xc6, 0x00, 0x00, 0x31, 0x07, 0x1e, 0x78, 0x30, 0x03, 0x0c, 0x30, 0x60, 0x03, 0x40, 0x00, 0x60, 0x03, 0x40, 0x00, 0x60, 0x03, 0x40, 0x00, 0x60, 0x03, 0x20, 0x04, 0x60, 0x03, 0x20, 0x04, 0x60, 0x03, 0x10, 0x08, 0x60, 0x03, 0x08, 0x08, 0x60, 0x03, 0xf0, 0x07, 0x60, 0x06, 0x00, 0x00, 0x30, 0x06, 0x00, 0x00, 0x30, 0x0c, 0x00, 0xc0, 0x18, 0x0c, 0x3c, 0x30, 0x18, 0x18, 0xe6, 0x19, 0x0c, 0x30, 0x00, 0x0f, 0x06, 0x60, 0x00, 0x00, 0x03, 0xc0, 0x01, 0xc0, 0x01, 0x80, 0x07, 0xf0, 0x00, 0x00, 0xfe, 0x3f, 0x00, 0x00, 0xf8, 0x0f, 0x00}; // // The CursorView contains many labels with different cursors. // class CursorView : public QWidget // cursor view { public: CursorView(); }; // // Constructs a cursor view. // CursorView::CursorView() // construct view { struct List { CursorShape shape; const char* name; // cursor name }; static List list[] = { { ArrowCursor, "arrowCursor" }, { UpArrowCursor, "upArrowCursor" }, { CrossCursor, "crossCursor" }, { WaitCursor, "waitCursor" }, { IbeamCursor, "ibeamCursor" }, { SizeVerCursor, "sizeVerCursor" }, { SizeHorCursor, "sizeHorCursor" }, { SizeBDiagCursor, "sizeBDiagCursor" }, { SizeFDiagCursor, "sizeFDiagCursor" }, { SizeAllCursor, "sizeAllCursor" }, { BlankCursor, "blankCursor" }, { SplitVCursor, "splitVCursor" }, { SplitHCursor, "splitHCursor" }, { PointingHandCursor, "pointingHandCursor" }, { ForbiddenCursor, "forbiddenCursor" }, { WhatsThisCursor, "whatsThisCursor" } }; setCaption( "CursorView" ); // set window caption QGridLayout* grid = new QGridLayout( this, 5, 4, 20 ); QLabel *label; int i=0; for ( int y=0; y<4; y++ ) { // create the small labels for ( int x=0; x<4; x++ ) { label = new QLabel( this ); label->setCursor( QCursor( list[i].shape ) ); label->setText( list[i].name ); label->setAlignment( AlignCenter ); label->setMargin( 10 ); label->setFrameStyle( QFrame::Box | QFrame::Raised ); grid->addWidget( label, x, y ); i++; } } QBitmap cb( cb_width, cb_height, cb_bits, TRUE ); QBitmap cm( cm_width, cm_height, cm_bits, TRUE ); QCursor custom( cb, cm ); // create bitmap cursor label = new QLabel( this ); // create the big label label->setCursor( custom ); label->setText( "Custom bitmap cursor" ); label->setAlignment( AlignCenter ); label->setMargin( 10 ); label->setFrameStyle( QFrame::Box | QFrame::Sunken ); grid->addMultiCellWidget( label, 4, 4, 0, 3 ); } // // Create and display a CursorView. // int main( int argc, char **argv ) { QApplication a( argc, argv ); // application object CursorView v; // cursor view a.setMainWidget( &v ); v.setCaption("Qt Example - Cursors"); v.show(); return a.exec(); }
See also Examples.
Copyright © 2003 Trolltech | Trademarks | Qt version 3.1.2
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