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-rw-r--r--noncore/graphics/opie-eye/lib/oimagezoomer.cpp90
-rw-r--r--noncore/graphics/opie-eye/lib/oimagezoomer.h84
2 files changed, 166 insertions, 8 deletions
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
index ffa3c0c..4df5dcc 100644
--- a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
@@ -9,23 +9,78 @@
9 9
10namespace Opie { 10namespace Opie {
11namespace MM { 11namespace MM {
12
13/**
14 * \brief The most simple c'tor
15 * The main c'tor. You still need to set a QPixmap/QIMage,
16 * setImageSize,setViewPortSize,setVisiblePoint
17 *
18 * @param parent The parent widget
19 * @param name A name for this widget
20 * @param fl The widget flags
21 *
22 */
12OImageZoomer::OImageZoomer( QWidget* parent, const char* name, WFlags fl ) 23OImageZoomer::OImageZoomer( QWidget* parent, const char* name, WFlags fl )
13 : QFrame( parent, name, fl ) { 24 : QFrame( parent, name, fl ) {
14 init(); 25 init();
15} 26}
16 27
28
29/**
30 * \brief This c'tor takes a QPixmap additional
31 *
32 * You initially set the QPixmap but you still need to provide
33 * the additional data to make this widget useful
34 *
35 * @param pix A Pixmap it'll be converted to a QImage later!
36 * @param par The parent widget
37 * @param name The name of this widget
38 * @param fl The widget flags
39 */
17OImageZoomer::OImageZoomer( const QPixmap& pix, QWidget* par, const char* name, WFlags fl ) 40OImageZoomer::OImageZoomer( const QPixmap& pix, QWidget* par, const char* name, WFlags fl )
18 : QFrame( par, name, fl ) { 41 : QFrame( par, name, fl ) {
19 init(); 42 init();
20 setImage( pix ); 43 setImage( pix );
21} 44}
22 45
46
47/**
48 * \brief This c'tor takes a QImage instead
49 * You just provide a QImage which is saved. It behaves the same as the others.
50 *
51 * @param img A Image which will be used for the zoomer content
52 * @param par The parent of the widget
53 * @param name The name of the widget
54 * @param fl The widgets flags
55 */
56OImageZoomer::OImageZoomer( const QImage& img, QWidget* par, const char* name, WFlags fl)
57 : QFrame( par, name, fl ) {
58 init();
59 setImage( img );
60}
61
62
63/**
64 * \brief overloaded c'tor
65 *
66 * This differs only in the arguments it takes
67 *
68 *
69 * @param pSize The size of the Page you show
70 * @param vSize The size of the viewport. The size of the visible part of the widget
71 * @param par The parent of the widget
72 * @param name The name
73 * @param fl The window flags
74 */
23OImageZoomer::OImageZoomer( const QSize& pSize, const QSize& vSize, QWidget* par, 75OImageZoomer::OImageZoomer( const QSize& pSize, const QSize& vSize, QWidget* par,
24 const char* name, WFlags fl ) 76 const char* name, WFlags fl )
25 : QFrame( par, name, fl ), m_imgSize( pSize ),m_visSize( vSize ) { 77 : QFrame( par, name, fl ), m_imgSize( pSize ),m_visSize( vSize ) {
26 init(); 78 init();
27} 79}
28 80
81/**
82 * d'tor
83 */
29OImageZoomer::~OImageZoomer() { 84OImageZoomer::~OImageZoomer() {
30 85
31} 86}
@@ -34,26 +89,61 @@ void OImageZoomer::init() {
34 setFrameStyle( Panel | Sunken ); 89 setFrameStyle( Panel | Sunken );
35} 90}
36 91
92
93/**
94 * \brief set the page/image size
95 * Tell us the QSize of the Data you show to the user. We need this
96 * to do the calculations
97 *
98 * @param size The size of the stuff you want to zoom on
99 */
37void OImageZoomer::setImageSize( const QSize& size ) { 100void OImageZoomer::setImageSize( const QSize& size ) {
38 m_imgSize = size; 101 m_imgSize = size;
39 repaint(); 102 repaint();
40} 103}
104
105/**
106 * \brief Set the size of the viewport
107 * Tell us the QSize of the viewport. The viewport is the part
108 * of the widget which is exposed on the screen
109 *
110 * @param size Te size of the viewport
111 *
112 * @see QScrollView::viewport()
113 */
41void OImageZoomer::setViewPortSize( const QSize& size ) { 114void OImageZoomer::setViewPortSize( const QSize& size ) {
42 m_visSize = size; 115 m_visSize = size;
43 repaint(); 116 repaint();
44} 117}
45 118
119/**
120 * \brief the point in the topleft corner which is currently visible
121 * Set the visible point. This most of the times relate to QScrollView::contentsX()
122 * and QScrollView::contentsY()
123 *
124 * @see setVisiblePoint(int,int)
125 */
46void OImageZoomer::setVisiblePoint( const QPoint& pt ) { 126void OImageZoomer::setVisiblePoint( const QPoint& pt ) {
47 m_visPt = pt; 127 m_visPt = pt;
48 repaint(); 128 repaint();
49} 129}
50 130
131
132/**
133 * Set the Image. The image will be resized on resizeEvent
134 * and it'll set the QPixmap background
135 *
136 * @param img The image will be stored internally and used as the background
137 */
51void OImageZoomer::setImage( const QImage& img) { 138void OImageZoomer::setImage( const QImage& img) {
52 m_img = img; 139 m_img = img;
53 resizeEvent( 0 ); 140 resizeEvent( 0 );
54 repaint(); 141 repaint();
55} 142}
56 143
144/**
145 * overloaded function it calls the QImage version
146 */
57void OImageZoomer::setImage( const QPixmap& pix) { 147void OImageZoomer::setImage( const QPixmap& pix) {
58 setImage( pix.convertToImage() ); 148 setImage( pix.convertToImage() );
59} 149}
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.h b/noncore/graphics/opie-eye/lib/oimagezoomer.h
index 605416c..2516c61 100644
--- a/noncore/graphics/opie-eye/lib/oimagezoomer.h
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.h
@@ -13,12 +13,29 @@ namespace Opie {
13namespace MM { 13namespace MM {
14 14
15/** 15/**
16 * \brief small class to zoom over a widget 16 * \brief small class to zoom over a Page
17 * This class takes a QImage or QPixmap 17 *
18 * and gets the size of the original image 18 * This class represents your page but smaller.
19 * and provides depending of this widgets size 19 * It can draw a Rect on top of an Image/Pixmap you supply
20 * a zoomer and emits the region which should 20 * and you can allow the user easily zooming/moving
21 * be shown / zoomed to 21 * over your widget.
22 * All you need to do is to supply a image/pixmap, the visible size
23 * and the original image/pixmap size and the current visible top/left
24 * position.
25 *
26 * This Image works perfectly with QScrollView as you can connect
27 * QScrollView::contentsMoving to setVisiblePoint slot and the zoomAreRel
28 * to the QScrollView::scrollBy slot. Now you would only need to watch
29 * the resize event anf give us the new information about QScrollView::viewport
30 *
31 * You need to position and set the size of this widget! using setFixedSize() is quite
32 * a good idea for this widget
33 *
34 * @see QScrollView
35 * @see QScrollView::viewport()
36 *
37 * @since 1.2
38 *
22 */ 39 */
23class OImageZoomer : public QFrame { 40class OImageZoomer : public QFrame {
24 Q_OBJECT 41 Q_OBJECT
@@ -38,18 +55,60 @@ public slots:
38 void setImage( const QPixmap& ); 55 void setImage( const QPixmap& );
39 56
40signals: 57signals:
41 void zoomAreaRel( int,int ); 58 /**
42 void zoomArea( int,int ); 59 * Relative movement in the coordinates of the viewport
60 * This signal can easily be connected to QScrollView::scrollBy.
61 * This signal is emitted from within the mouseMoveEvent of this widget
62 *
63 *
64 * @param x The way to move relative on the X-Axis
65 * @param y The way to move relative on the Y-Axis
66 *
67 * @see setVisiblePoint
68 * @see QScrollView::scrollBy
69 */
70 void zoomAreaRel( int x,int y);
71
72 /**
73 * Here you get absolute coordinates.
74 * This slot will be emitted from within the mouseMoveEvent of this widget.
75 * So you may not delete this widget
76 *
77 * @param x The absolute X Coordinate to scroll to.
78 * @param y The absolute Y Coordinate to scroll to.
79 *
80 */
81 void zoomArea( int x,int y);
43 82
44public: 83public:
84 /**
85 * make sure to call these if you reimplement
86 * @internal
87 */
45 void resizeEvent( QResizeEvent* ); 88 void resizeEvent( QResizeEvent* );
46 89
47protected: 90protected:
91 /**
92 * make sure to call these if you reimplement
93 * @internal
94 */
48 void drawContents( QPainter* p ); 95 void drawContents( QPainter* p );
96
97 /**
98 * make sure to call these if you reimplememt
99 * @internal
100 */
49 void mousePressEvent( QMouseEvent* ev ); 101 void mousePressEvent( QMouseEvent* ev );
102 /**
103 * make sure to call these if you reimplement
104 * @internal
105 */
50 void mouseMoveEvent( QMouseEvent* ev ); 106 void mouseMoveEvent( QMouseEvent* ev );
51 107
52private: 108private:
109 /**
110 * @internal
111 */
53 void init(); 112 void init();
54 QImage m_img; 113 QImage m_img;
55 QSize m_imgSize, m_visSize; 114 QSize m_imgSize, m_visSize;
@@ -57,6 +116,15 @@ private:
57 int m_mouseX, m_mouseY; 116 int m_mouseX, m_mouseY;
58}; 117};
59 118
119/**
120 * This slot is present for convience. You can connect the
121 * QScrollView::contentsMoved to this slot and it calls the QPoint
122 * version for you
123 * This realtes to QScrollView::contentsX() and QScrollView::contentsY()
124 *
125 * @param x The top left x coordinate
126 * @param y The top left y coorisnate
127 */
60inline void OImageZoomer::setVisiblePoint( int x, int y ) { 128inline void OImageZoomer::setVisiblePoint( int x, int y ) {
61 setVisiblePoint( QPoint( x, y ) ); 129 setVisiblePoint( QPoint( x, y ) );
62} 130}