nextpnr/3rdparty/QtPropertyBrowser/examples/canvas_variant/qtcanvas.h
2018-06-11 21:30:22 +02:00

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19 KiB
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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
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**
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**
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** modification, are permitted provided that the following conditions are
** met:
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** notice, this list of conditions and the following disclaimer.
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#ifndef QTCANVAS_H
#define QTCANVAS_H
#include <QPixmap>
#include <QBrush>
#include <QPen>
#include <QPolygon>
#include <QScrollArea>
class QtCanvasSprite;
class QtCanvasPolygonalItem;
class QtCanvasRectangle;
class QtCanvasPolygon;
class QtCanvasEllipse;
class QtCanvasText;
class QtCanvasLine;
class QtCanvasChunk;
class QtCanvas;
class QtCanvasItem;
class QtCanvasView;
class QtCanvasPixmap;
typedef QList<QtCanvasItem *> QtCanvasItemList;
class QtCanvasItemExtra;
class QtCanvasItem
{
public:
QtCanvasItem(QtCanvas* canvas);
virtual ~QtCanvasItem();
double x() const
{ return myx; }
double y() const
{ return myy; }
double z() const
{ return myz; } // (depth)
virtual void moveBy(double dx, double dy);
void move(double x, double y);
void setX(double a) { move(a,y()); }
void setY(double a) { move(x(),a); }
void setZ(double a) { myz=a; changeChunks(); }
bool animated() const;
virtual void setAnimated(bool y);
virtual void setVelocity(double vx, double vy);
void setXVelocity(double vx) { setVelocity(vx,yVelocity()); }
void setYVelocity(double vy) { setVelocity(xVelocity(),vy); }
double xVelocity() const;
double yVelocity() const;
virtual void advance(int stage);
virtual bool collidesWith(const QtCanvasItem*) const=0;
QtCanvasItemList collisions(bool exact /* NO DEFAULT */) const;
virtual void setCanvas(QtCanvas*);
virtual void draw(QPainter&)=0;
void show();
void hide();
virtual void setVisible(bool yes);
bool isVisible() const
{ return (bool)vis; }
virtual void setSelected(bool yes);
bool isSelected() const
{ return (bool)sel; }
virtual void setEnabled(bool yes);
bool isEnabled() const
{ return (bool)ena; }
virtual void setActive(bool yes);
bool isActive() const
{ return (bool)act; }
bool visible() const
{ return (bool)vis; }
bool selected() const
{ return (bool)sel; }
bool enabled() const
{ return (bool)ena; }
bool active() const
{ return (bool)act; }
enum RttiValues {
Rtti_Item = 0,
Rtti_Sprite = 1,
Rtti_PolygonalItem = 2,
Rtti_Text = 3,
Rtti_Polygon = 4,
Rtti_Rectangle = 5,
Rtti_Ellipse = 6,
Rtti_Line = 7,
Rtti_Spline = 8
};
virtual int rtti() const;
static int RTTI;
virtual QRect boundingRect() const=0;
virtual QRect boundingRectAdvanced() const;
QtCanvas* canvas() const
{ return cnv; }
protected:
void update() { changeChunks(); }
private:
// For friendly subclasses...
friend class QtCanvasPolygonalItem;
friend class QtCanvasSprite;
friend class QtCanvasRectangle;
friend class QtCanvasPolygon;
friend class QtCanvasEllipse;
friend class QtCanvasText;
friend class QtCanvasLine;
virtual QPolygon chunks() const;
virtual void addToChunks();
virtual void removeFromChunks();
virtual void changeChunks();
virtual bool collidesWith(const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const = 0;
// End of friend stuff
QtCanvas* cnv;
static QtCanvas* current_canvas;
double myx,myy,myz;
QtCanvasItemExtra *ext;
QtCanvasItemExtra& extra();
uint ani:1;
uint vis:1;
uint val:1;
uint sel:1;
uint ena:1;
uint act:1;
};
class QtCanvasData;
class QtCanvas : public QObject
{
Q_OBJECT
public:
QtCanvas(QObject* parent = 0);
QtCanvas(int w, int h);
QtCanvas(QPixmap p, int h, int v, int tilewidth, int tileheight);
virtual ~QtCanvas();
virtual void setTiles(QPixmap tiles, int h, int v,
int tilewidth, int tileheight);
virtual void setBackgroundPixmap(const QPixmap& p);
QPixmap backgroundPixmap() const;
virtual void setBackgroundColor(const QColor& c);
QColor backgroundColor() const;
virtual void setTile(int x, int y, int tilenum);
int tile(int x, int y) const
{ return grid[x+y*htiles]; }
int tilesHorizontally() const
{ return htiles; }
int tilesVertically() const
{ return vtiles; }
int tileWidth() const
{ return tilew; }
int tileHeight() const
{ return tileh; }
virtual void resize(int width, int height);
int width() const
{ return awidth; }
int height() const
{ return aheight; }
QSize size() const
{ return QSize(awidth,aheight); }
QRect rect() const
{ return QRect(0, 0, awidth, aheight); }
bool onCanvas(int x, int y) const
{ return x>=0 && y>=0 && x<awidth && y<aheight; }
bool onCanvas(const QPoint& p) const
{ return onCanvas(p.x(),p.y()); }
bool validChunk(int x, int y) const
{ return x>=0 && y>=0 && x<chwidth && y<chheight; }
bool validChunk(const QPoint& p) const
{ return validChunk(p.x(),p.y()); }
int chunkSize() const
{ return chunksize; }
virtual void retune(int chunksize, int maxclusters=100);
bool sameChunk(int x1, int y1, int x2, int y2) const
{ return x1/chunksize==x2/chunksize && y1/chunksize==y2/chunksize; }
virtual void setChangedChunk(int i, int j);
virtual void setChangedChunkContaining(int x, int y);
virtual void setAllChanged();
virtual void setChanged(const QRect& area);
virtual void setUnchanged(const QRect& area);
// These call setChangedChunk.
void addItemToChunk(QtCanvasItem*, int i, int j);
void removeItemFromChunk(QtCanvasItem*, int i, int j);
void addItemToChunkContaining(QtCanvasItem*, int x, int y);
void removeItemFromChunkContaining(QtCanvasItem*, int x, int y);
QtCanvasItemList allItems();
QtCanvasItemList collisions(const QPoint&) const;
QtCanvasItemList collisions(const QRect&) const;
QtCanvasItemList collisions(const QPolygon& pa, const QtCanvasItem* item,
bool exact) const;
void drawArea(const QRect&, QPainter* p, bool double_buffer=false);
// These are for QtCanvasView to call
virtual void addView(QtCanvasView*);
virtual void removeView(QtCanvasView*);
void drawCanvasArea(const QRect&, QPainter* p=0, bool double_buffer=true);
void drawViewArea(QtCanvasView* view, QPainter* p, const QRect& r, bool dbuf);
// These are for QtCanvasItem to call
virtual void addItem(QtCanvasItem*);
virtual void addAnimation(QtCanvasItem*);
virtual void removeItem(QtCanvasItem*);
virtual void removeAnimation(QtCanvasItem*);
virtual void setAdvancePeriod(int ms);
virtual void setUpdatePeriod(int ms);
signals:
void resized();
public slots:
virtual void advance();
virtual void update();
protected:
virtual void drawBackground(QPainter&, const QRect& area);
virtual void drawForeground(QPainter&, const QRect& area);
private:
void init(int w, int h, int chunksze=16, int maxclust=100);
QtCanvasChunk& chunk(int i, int j) const;
QtCanvasChunk& chunkContaining(int x, int y) const;
QRect changeBounds();
int awidth,aheight;
int chunksize;
int maxclusters;
int chwidth,chheight;
QtCanvasChunk* chunks;
QtCanvasData* d;
void initTiles(QPixmap p, int h, int v, int tilewidth, int tileheight);
ushort *grid;
ushort htiles;
ushort vtiles;
ushort tilew;
ushort tileh;
bool oneone;
QPixmap pm;
QTimer* update_timer;
QColor bgcolor;
bool debug_redraw_areas;
friend void qt_unview(QtCanvas* c);
Q_DISABLE_COPY(QtCanvas)
};
class QtCanvasViewData;
class QtCanvasView : public QScrollArea
{
Q_OBJECT
Q_PROPERTY(bool highQualityRendering READ highQualityRendering WRITE setHighQualityRendering)
public:
QtCanvasView(QWidget* parent=0);
QtCanvasView(QtCanvas* viewing, QWidget* parent=0);
~QtCanvasView();
QtCanvas* canvas() const
{ return viewing; }
void setCanvas(QtCanvas* v);
const QMatrix &worldMatrix() const;
const QMatrix &inverseWorldMatrix() const;
bool setWorldMatrix(const QMatrix &);
virtual QSize sizeHint() const;
bool highQualityRendering() const;
public slots:
void setHighQualityRendering(bool enable);
protected:
friend class QtCanvasWidget;
virtual void drawContents(QPainter *p, int cx, int cy, int cw, int ch);
virtual void contentsMousePressEvent( QMouseEvent* );
virtual void contentsMouseReleaseEvent( QMouseEvent* );
virtual void contentsMouseDoubleClickEvent( QMouseEvent* );
virtual void contentsMouseMoveEvent( QMouseEvent* );
virtual void contentsDragEnterEvent( QDragEnterEvent * );
virtual void contentsDragMoveEvent( QDragMoveEvent * );
virtual void contentsDragLeaveEvent( QDragLeaveEvent * );
virtual void contentsDropEvent( QDropEvent * );
virtual void contentsWheelEvent( QWheelEvent * );
virtual void contentsContextMenuEvent( QContextMenuEvent * );
private:
friend class QtCanvas;
void drawContents(QPainter*);
QtCanvas* viewing;
QtCanvasViewData* d;
private slots:
void updateContentsSize();
private:
Q_DISABLE_COPY(QtCanvasView)
};
class QtCanvasPixmap : public QPixmap
{
public:
#ifndef QT_NO_IMAGEIO
QtCanvasPixmap(const QString& datafilename);
#endif
QtCanvasPixmap(const QImage& image);
QtCanvasPixmap(const QPixmap&, const QPoint& hotspot);
~QtCanvasPixmap();
int offsetX() const
{ return hotx; }
int offsetY() const
{ return hoty; }
void setOffset(int x, int y) { hotx = x; hoty = y; }
private:
Q_DISABLE_COPY(QtCanvasPixmap)
void init(const QImage&);
void init(const QPixmap& pixmap, int hx, int hy);
friend class QtCanvasSprite;
friend class QtCanvasPixmapArray;
friend bool qt_testCollision(const QtCanvasSprite* s1, const QtCanvasSprite* s2);
int hotx,hoty;
QImage* collision_mask;
};
class QtCanvasPixmapArray
{
public:
QtCanvasPixmapArray();
#ifndef QT_NO_IMAGEIO
QtCanvasPixmapArray(const QString& datafilenamepattern, int framecount=0);
#endif
QtCanvasPixmapArray(const QList<QPixmap> &pixmaps, const QPolygon &hotspots = QPolygon());
~QtCanvasPixmapArray();
#ifndef QT_NO_IMAGEIO
bool readPixmaps(const QString& datafilenamepattern, int framecount=0);
bool readCollisionMasks(const QString& filenamepattern);
#endif
// deprecated
bool operator!(); // Failure check.
bool isValid() const;
QtCanvasPixmap* image(int i) const
{ return img ? img[i] : 0; }
void setImage(int i, QtCanvasPixmap* p);
uint count() const
{ return (uint)framecount; }
private:
Q_DISABLE_COPY(QtCanvasPixmapArray)
#ifndef QT_NO_IMAGEIO
bool readPixmaps(const QString& datafilenamepattern, int framecount, bool maskonly);
#endif
void reset();
int framecount;
QtCanvasPixmap** img;
};
class QtCanvasSprite : public QtCanvasItem
{
public:
QtCanvasSprite(QtCanvasPixmapArray* array, QtCanvas* canvas);
void setSequence(QtCanvasPixmapArray* seq);
virtual ~QtCanvasSprite();
void move(double x, double y);
virtual void move(double x, double y, int frame);
void setFrame(int);
enum FrameAnimationType { Cycle, Oscillate };
virtual void setFrameAnimation(FrameAnimationType=Cycle, int step=1, int state=0);
int frame() const
{ return frm; }
int frameCount() const
{ return images->count(); }
int rtti() const;
static int RTTI;
bool collidesWith(const QtCanvasItem*) const;
QRect boundingRect() const;
// is there a reason for these to be protected? Lars
//protected:
int width() const;
int height() const;
int leftEdge() const;
int topEdge() const;
int rightEdge() const;
int bottomEdge() const;
int leftEdge(int nx) const;
int topEdge(int ny) const;
int rightEdge(int nx) const;
int bottomEdge(int ny) const;
QtCanvasPixmap* image() const
{ return images->image(frm); }
virtual QtCanvasPixmap* imageAdvanced() const;
QtCanvasPixmap* image(int f) const
{ return images->image(f); }
virtual void advance(int stage);
public:
void draw(QPainter& painter);
private:
Q_DISABLE_COPY(QtCanvasSprite)
void addToChunks();
void removeFromChunks();
void changeChunks();
int frm;
ushort anim_val;
uint anim_state:2;
uint anim_type:14;
bool collidesWith(const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const;
friend bool qt_testCollision(const QtCanvasSprite* s1,
const QtCanvasSprite* s2);
QtCanvasPixmapArray* images;
};
class QPolygonalProcessor;
class QtCanvasPolygonalItem : public QtCanvasItem
{
public:
QtCanvasPolygonalItem(QtCanvas* canvas);
virtual ~QtCanvasPolygonalItem();
bool collidesWith(const QtCanvasItem*) const;
virtual void setPen(QPen p);
virtual void setBrush(QBrush b);
QPen pen() const
{ return pn; }
QBrush brush() const
{ return br; }
virtual QPolygon areaPoints() const=0;
virtual QPolygon areaPointsAdvanced() const;
QRect boundingRect() const;
int rtti() const;
static int RTTI;
protected:
void draw(QPainter &);
virtual void drawShape(QPainter &) = 0;
bool winding() const;
void setWinding(bool);
void invalidate();
bool isValid() const
{ return (bool)val; }
private:
void scanPolygon(const QPolygon& pa, int winding,
QPolygonalProcessor& process) const;
QPolygon chunks() const;
bool collidesWith(const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const;
QBrush br;
QPen pn;
uint wind:1;
};
class QtCanvasRectangle : public QtCanvasPolygonalItem
{
public:
QtCanvasRectangle(QtCanvas* canvas);
QtCanvasRectangle(const QRect&, QtCanvas* canvas);
QtCanvasRectangle(int x, int y, int width, int height, QtCanvas* canvas);
~QtCanvasRectangle();
int width() const;
int height() const;
void setSize(int w, int h);
QSize size() const
{ return QSize(w,h); }
QPolygon areaPoints() const;
QRect rect() const
{ return QRect(int(x()),int(y()),w,h); }
bool collidesWith(const QtCanvasItem*) const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
QPolygon chunks() const;
private:
bool collidesWith( const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const;
int w, h;
};
class QtCanvasPolygon : public QtCanvasPolygonalItem
{
public:
QtCanvasPolygon(QtCanvas* canvas);
~QtCanvasPolygon();
void setPoints(QPolygon);
QPolygon points() const;
void moveBy(double dx, double dy);
QPolygon areaPoints() const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
QPolygon poly;
};
class QtCanvasSpline : public QtCanvasPolygon
{
public:
QtCanvasSpline(QtCanvas* canvas);
~QtCanvasSpline();
void setControlPoints(QPolygon, bool closed=true);
QPolygon controlPoints() const;
bool closed() const;
int rtti() const;
static int RTTI;
private:
void recalcPoly();
QPolygon bez;
bool cl;
};
class QtCanvasLine : public QtCanvasPolygonalItem
{
public:
QtCanvasLine(QtCanvas* canvas);
~QtCanvasLine();
void setPoints(int x1, int y1, int x2, int y2);
QPoint startPoint() const
{ return QPoint(x1,y1); }
QPoint endPoint() const
{ return QPoint(x2,y2); }
int rtti() const;
static int RTTI;
void setPen(QPen p);
void moveBy(double dx, double dy);
protected:
void drawShape(QPainter &);
QPolygon areaPoints() const;
private:
int x1,y1,x2,y2;
};
class QtCanvasEllipse : public QtCanvasPolygonalItem
{
public:
QtCanvasEllipse(QtCanvas* canvas);
QtCanvasEllipse(int width, int height, QtCanvas* canvas);
QtCanvasEllipse(int width, int height, int startangle, int angle,
QtCanvas* canvas);
~QtCanvasEllipse();
int width() const;
int height() const;
void setSize(int w, int h);
void setAngles(int start, int length);
int angleStart() const
{ return a1; }
int angleLength() const
{ return a2; }
QPolygon areaPoints() const;
bool collidesWith(const QtCanvasItem*) const;
int rtti() const;
static int RTTI;
protected:
void drawShape(QPainter &);
private:
bool collidesWith(const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const;
int w, h;
int a1, a2;
};
class QtCanvasTextExtra;
class QtCanvasText : public QtCanvasItem
{
public:
QtCanvasText(QtCanvas* canvas);
QtCanvasText(const QString&, QtCanvas* canvas);
QtCanvasText(const QString&, QFont, QtCanvas* canvas);
virtual ~QtCanvasText();
void setText(const QString&);
void setFont(const QFont&);
void setColor(const QColor&);
QString text() const;
QFont font() const;
QColor color() const;
void moveBy(double dx, double dy);
int textFlags() const
{ return flags; }
void setTextFlags(int);
QRect boundingRect() const;
bool collidesWith(const QtCanvasItem*) const;
int rtti() const;
static int RTTI;
protected:
virtual void draw(QPainter&);
private:
Q_DISABLE_COPY(QtCanvasText)
void addToChunks();
void removeFromChunks();
void changeChunks();
void setRect();
QRect brect;
QString txt;
int flags;
QFont fnt;
QColor col;
QtCanvasTextExtra* extra;
bool collidesWith(const QtCanvasSprite*,
const QtCanvasPolygonalItem*,
const QtCanvasRectangle*,
const QtCanvasEllipse*,
const QtCanvasText*) const;
};
#endif // QTCANVAS_H