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    41 

    42 #ifndef QPLAINTEXTEDIT_P_H

    43 #define QPLAINTEXTEDIT_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "private/qabstractscrollarea_p.h"

    57 #include "QtGui/qtextdocumentfragment.h"

    58 #include "QtGui/qscrollbar.h"

    59 #include "QtGui/qtextcursor.h"

    60 #include "QtGui/qtextformat.h"

    61 #include "QtGui/qmenu.h"

    62 #include "QtGui/qabstracttextdocumentlayout.h"

    63 #include "QtCore/qbasictimer.h"

    64 #include "private/qtextcontrol_p.h"

    65 #include "qplaintextedit.h"

    66 

    67 #ifndef QT_NO_TEXTEDIT

    68 

    69 QT_BEGIN_NAMESPACE

    70 

    71 class QMimeData;

    72 

    73 class QPlainTextEdit;

    74 class ExtraArea;

    75 

    76 class QPlainTextEditControl : public QTextControl

    77 {

    78     Q_OBJECT

    79 public:

    80     QPlainTextEditControl(QPlainTextEdit *parent);

    81 

    82 

    83     QMimeData *createMimeDataFromSelection() const;

    84     bool canInsertFromMimeData(const QMimeData *source) const;

    85     void insertFromMimeData(const QMimeData *source);

    86     int hitTest(const QPointF &point, Qt::HitTestAccuracy = Qt::FuzzyHit) const;

    87     QRectF blockBoundingRect(const QTextBlock &block) const;

    88     inline QRectF cursorRect(const QTextCursor &cursor) const {

    89         QRectF r = QTextControl::cursorRect(cursor);

    90         r.setLeft(qMax(r.left(), (qreal) 0.));

    91         return r;

    92     }

    93     inline QRectF cursorRect() { return cursorRect(textCursor()); }

    94     void ensureCursorVisible() {

    95         textEdit->ensureCursorVisible();

    96         emit microFocusChanged();

    97     }

    98 

    99 

   100     QPlainTextEdit *textEdit;

   101     int topBlock;

   102     QTextBlock firstVisibleBlock() const;

   103 

   104     QVariant loadResource(int type, const QUrl &name) {

   105         return textEdit->loadResource(type, name);

   106     }

   107 

   108 };

   109 

   110 

   111 class QPlainTextEditPrivate : public QAbstractScrollAreaPrivate

   112 {

   113     Q_DECLARE_PUBLIC(QPlainTextEdit)

   114 public:

   115     QPlainTextEditPrivate();

   116 

   117     void init(const QString &txt = QString());

   118     void _q_repaintContents(const QRectF &contentsRect);

   119 

   120     inline QPoint mapToContents(const QPoint &point) const

   121         { return QPoint(point.x() + horizontalOffset(), point.y() + verticalOffset()); }

   122 

   123     void _q_adjustScrollbars();

   124     void _q_verticalScrollbarActionTriggered(int action);

   125     void ensureViewportLayouted();

   126     void relayoutDocument();

   127 

   128     void pageUpDown(QTextCursor::MoveOperation op, QTextCursor::MoveMode moveMode, bool moveCursor = true);

   129 

   130     inline int horizontalOffset() const

   131         { return (q_func()->isRightToLeft() ? (hbar->maximum() - hbar->value()) : hbar->value()); }

   132     int verticalOffset(int topBlock, int topLine) const;

   133     int verticalOffset() const;

   134 

   135     inline void sendControlEvent(QEvent *e)

   136         { control->processEvent(e, QPointF(horizontalOffset(), verticalOffset()), viewport); }

   137 

   138     void updateDefaultTextOption();

   139 

   140     QPlainTextEditControl *control;

   141 

   142     bool tabChangesFocus;

   143 

   144     QBasicTimer autoScrollTimer;

   145     QPoint autoScrollDragPos;

   146 

   147     QPlainTextEdit::LineWrapMode lineWrap;

   148     QTextOption::WrapMode wordWrap;

   149 

   150     uint showCursorOnInitialShow : 1;

   151     uint backgroundVisible : 1;

   152     uint centerOnScroll : 1;

   153     uint inDrag : 1;

   154     uint clickCausedFocus : 1;

   155 

   156     int topLine;

   157 

   158     void setTopLine(int visualTopLine, int dx = 0);

   159     void setTopBlock(int newTopBlock, int newTopLine, int dx = 0);

   160 

   161     void ensureVisible(int position, bool center, bool forceCenter = false);

   162     void ensureCursorVisible(bool center = false);

   163     void updateViewport();

   164 

   165     QPointer<QPlainTextDocumentLayout> documentLayoutPtr;

   166 

   167     void append(const QString &text, Qt::TextFormat format = Qt::AutoText);

   168 

   169     qreal pageUpDownLastCursorY;

   170     bool pageUpDownLastCursorYIsValid;

   171 

   172 

   173 #ifdef QT_KEYPAD_NAVIGATION

   174     QBasicTimer deleteAllTimer;

   175 #endif

   176 

   177     void _q_cursorPositionChanged();

   178     void _q_modificationChanged(bool);

   179 

   180     int originalOffsetY;

   181 };

   182 

   183 QT_END_NAMESPACE

   184 

   185 #endif // QT_NO_TEXTEDIT

   186 

   187 #endif // QPLAINTEXTEDIT_P_H