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470 lines
14 KiB
470 lines
14 KiB
/***************************************************************************
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begin : Sun Aug 8 1999
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copyright : (C) 1999 by John Birch
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email : jbb@tdevelop.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef _VARIABLEWIDGET_H_
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#define _VARIABLEWIDGET_H_
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#include "gdbcontroller.h"
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#include "mi/gdbmi.h"
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#include <klistview.h>
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#include <kcombobox.h>
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#include <tqwidget.h>
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#include <tqtooltip.h>
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#include <tqvaluevector.h>
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#include <tqdatetime.h>
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#include <tqguardedptr.h>
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#include <tqmap.h>
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#include <vector>
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class KLineEdit;
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class KPopupMenu;
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namespace GDBDebugger
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{
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class TrimmableItem;
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class VarFrameRoot;
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class WatchRoot;
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class VarItem;
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class VariableTree;
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class DbgController;
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class GDBBreakpointWidget;
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enum { VarNameCol = 0, ValueCol = 1, VarTypeCol = 2};
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enum DataType { typeUnknown, typeValue, typePointer, typeReference,
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typeStruct, typeArray, typeTQString, typeWhitespace,
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typeName };
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class VariableWidget : public TQWidget
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{
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Q_OBJECT
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public:
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VariableWidget( GDBController* controller,
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GDBBreakpointWidget* breakpointWidget,
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TQWidget *parent=0, const char *name=0 );
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VariableTree *varTree() const
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{ return varTree_; }
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protected: // TQWidget overrides
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void focusInEvent(TQFocusEvent *e);
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public slots:
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void slotAddWatchVariable();
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void slotAddWatchVariable(const TQString &ident);
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void slotEvaluateExpression();
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void slotEvaluateExpression(const TQString &ident);
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private:
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VariableTree *varTree_;
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// KLineEdit *watchVarEntry_;
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friend class VariableTree;
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KHistoryCombo *watchVarEditor_;
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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class VariableTree : public KListView, public TQToolTip
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{
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Q_OBJECT
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public:
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VariableTree(VariableWidget *parent,
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GDBController* controller,
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GDBBreakpointWidget* breakpointWidget,
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const char *name=0 );
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virtual ~VariableTree();
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TQListViewItem *lastChild() const;
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TQListViewItem *findRoot(TQListViewItem *item) const;
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VarFrameRoot *findFrame(int frameNo, int threadNo) const;
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WatchRoot *findWatch();
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// (from TQToolTip) Display a tooltip when the cursor is over an item
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virtual void maybeTip(const TQPoint &);
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GDBController* controller() const { return controller_; }
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signals:
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void toggleWatchpoint(const TQString &varName);
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public slots:
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void slotAddWatchVariable(const TQString& watchVar);
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void slotEvaluateExpression(const TQString& expression);
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void slotEvent(GDBController::event_t);
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void slotItemRenamed(TQListViewItem* item, int col, const TQString& text);
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private slots:
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void slotContextMenu(KListView *, TQListViewItem *item);
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void slotVarobjNameChanged(const TQString& from, const TQString& to);
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private: // Callbacks for gdb commands;
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void argumentsReady(const GDBMI::ResultRecord&);
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void localsReady(const GDBMI::ResultRecord&);
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void frameIdReady(const TQValueVector<TQString>&);
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void handleVarUpdate(const GDBMI::ResultRecord&);
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void handleEvaluateExpression(const TQValueVector<TQString>&);
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void variablesFetchDone();
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void fetchSpecialValuesDone();
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/** This is called when address of expression for which
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popup is created is known.
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If there's no address (for rvalue), does nothing
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(leaving "Data breakpoint" item disabled).
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Otherwise, enabled that item, and check is we
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have data breakpoint for that address already.
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*/
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void handleAddressComputed(const GDBMI::ResultRecord& r);
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private: // helper functions
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/** Get (if exists) and create (otherwise) frame root for
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the specified frameNo/threadNo combination.
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*/
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VarFrameRoot* demand_frame_root(int frameNo, int threadNo);
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void updateCurrentFrame();
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/** Copies the value (second column) of the specified item to
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the clipboard.
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*/
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void copyToClipboard(TQListViewItem*);
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private: // TQWidget overrides
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void keyPressEvent(TQKeyEvent* e);
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private:
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GDBController* controller_;
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GDBBreakpointWidget* breakpointWidget_;
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int activeFlag_;
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int iOutRadix;
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bool justPaused_;
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// Root of all recently printed expressions.
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TrimmableItem* recentExpressions_;
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VarFrameRoot* currentFrameItem;
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TQTime fetch_time;
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// Names of locals and arguments as reported by
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// gdb.
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std::vector<TQString> locals_and_arguments;
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TQMap<TQString, VarItem*> varobj2varitem;
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KPopupMenu* activePopup_;
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static const int idToggleWatch = 10;
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friend class VarFrameRoot;
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friend class VarItem;
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friend class WatchRoot;
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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/** List view item that can 'trim' outdated children.
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The instances of this class hold a number of children corresponding
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to variables. When program state changes, such as after a step in source,
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some variable values can change, and some variables can go out of scope.
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We need
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- highlight modified variables
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- remove gone variables
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We could just remove all children and repopulate the list from
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the data from debugger, but then we'd loose information about previous
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variable values.
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So, we first update the values, highlighting the modified variables, and
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keeping track which variables were recieved from gdb. After that, the
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'trim' method is called, removing all variables which were not recieved
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from gdbr.
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*/
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class TrimmableItem : public KListViewItem
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{
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public:
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TrimmableItem(VariableTree *parent);
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TrimmableItem(TrimmableItem *parent);
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virtual ~TrimmableItem();
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TQListViewItem *lastChild() const;
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protected:
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void paintCell( TQPainter *p, const TQColorGroup &cg,
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int column, int width, int align );
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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class VarItem : public TQObject,
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public TrimmableItem
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{
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Q_OBJECT
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public:
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enum format_t { natural, hexadecimal, decimal, character, binary };
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/** Creates top-level variable item from the specified expression.
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Optionally, alternative display name can be provided.
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*/
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VarItem( TrimmableItem *parent,
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const TQString& expression,
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bool frozen = false);
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VarItem( TrimmableItem *parent, const GDBMI::Value& varobj,
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format_t format, bool baseClassMember);
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virtual ~VarItem();
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/// Returns the gdb expression for *this.
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TQString gdbExpression() const;
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/** Returns true is this VarItem should be unconditionally
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updated on each step, not matter what's the result of
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-var-update command.
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*/
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bool updateUnconditionally() const;
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void updateValue();
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void updateSpecialRepresentation(const TQString& s);
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/** Creates a fresh gdbs "variable object", if needed.
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Preconditions:
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- frame id did not change
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- this is a root variable
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If the current type of expression, or it's address, it different
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from it was previously, creates new "variable object" and
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fetches new value.
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Otherwise, does nothing.
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*/
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void recreateLocallyMaybe();
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/** Tries to create new gdb variable object for this expression.
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If successfull, updates all values. Otherwise, makes
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itself disabled.
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*/
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void recreate();
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void setOpen(bool open);
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void setText (int column, const TQString& text);
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/** Mark the variable as alive, or not alive.
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Variables that are not alive a shown as "gray",
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and nothing can be done about them except for
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removing. */
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void setAliveRecursively(bool enable);
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/** Recursively clears the varobjName_ field, making
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*this completely disconnected from gdb.
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Automatically makes *this and children disables,
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since there's no possible interaction with unhooked
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object.
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*/
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void unhookFromGdb();
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// Returns the text to be displayed as tooltip (the value)
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TQString tipText() const;
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format_t format() const;
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void setFormat(format_t f);
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format_t formatFromGdbModifier(char c) const;
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/** Clears highliting for this variable and
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all its children. */
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void clearHighlight();
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/** Sets new top-level textual value of this variable.
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*/
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void setValue(const TQString& new_value);
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bool isAlive() const;
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signals:
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/** Emitted whenever the name of varobj associated with *this changes:
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- when we've created initial varobj
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- when we've changed varobj name as part of 'recreate' method
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- when *this is destroyed and no longer uses any varobj.
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Either 'from' or 'to' can be empty string.
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*/
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void varobjNameChange(const TQString& from, const TQString& to);
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private:
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/** Creates new gdb "variable object". The controller_,
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expression_ and format_ member variables should already
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be set.
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*/
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void createVarobj();
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/** Precondition: 'name' is a name of existing
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gdb variable object.
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Effects:
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- sets varobjName_ to 'name'
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- sets format, if it's not default one
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- gets initial value
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- if item is open, gets children.
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*/
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void setVarobjName(const TQString& name);
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/** Handle types that require special dispay, such as
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TQString. Return true if this is such a type.
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The 'originalValueType_' is already initialized
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by the time this method is called.
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*/
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bool handleSpecialTypes();
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void paintCell( TQPainter *p, const TQColorGroup &cg,
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int column, int width, int align );
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void varobjCreated(const GDBMI::ResultRecord& r);
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void valueDone(const GDBMI::ResultRecord& r);
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void childrenDone(const GDBMI::ResultRecord& r);
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void childrenOfFakesDone(const GDBMI::ResultRecord& r);
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void handleCurrentAddress(const TQValueVector<TQString>& lines);
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void handleType(const TQValueVector<TQString>& lines);
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void createChildren(const GDBMI::ResultRecord& r, bool children_of_fake);
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/** Called to handle the output of the cli print command.
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*/
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void handleCliPrint(const TQValueVector<TQString>& lines);
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// Assuming 'expression_' is already set, returns the
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// displayName to use when showing this to the user.
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// This function exists because if we have item with
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// gdb expression '$1' and displayName 'P4', we want the child
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// to show up as *P4, not as '*$1', so we can't uncondionally
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// use expression gdb reports to us.
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TQString displayName() const;
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VariableTree* varTree() const;
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TQString varobjFormatName() const;
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private:
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// The gdb expression for this varItem relatively to
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// parent VarItem.
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TQString expression_;
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bool highlight_;
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GDBController* controller_;
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TQString varobjName_;
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// the non-cast type of the variable
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TQString originalValueType_;
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bool oldSpecialRepresentationSet_;
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TQString oldSpecialRepresentation_;
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format_t format_;
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static int varobjIndex;
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int numChildren_;
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bool childrenFetched_;
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TQString currentAddress_;
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TQString lastObtainedAddress_;
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bool updateUnconditionally_;
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bool frozen_;
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/* Set to true whan calling createVarobj for the
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first time, and to false other time. */
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bool initialCreation_;
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/* Set if this VarItem corresponds to base class suboject. */
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bool baseClassMember_;
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bool alive_;
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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class VarFrameRoot : public TrimmableItem
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{
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public:
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VarFrameRoot(VariableTree *parent, int frameNo, int threadNo);
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virtual ~VarFrameRoot();
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void setOpen(bool open);
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// Marks the frame as dirty, that is as having
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// out of date values. As soon as we try to open
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// this item, it will fetch new data.
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void setDirty();
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void setFrameName(const TQString &frameName)
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{ setText(VarNameCol, frameName); setText(ValueCol, ""); }
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bool needLocals() const { return needLocals_; }
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bool matchDetails(int frameNo, int threadNo);
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private:
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bool needLocals_;
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int frameNo_;
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int threadNo_;
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// Frame base and code address of the current inner-most
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// frame. Needed so that if we can know when 'frame N' no longer
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// is the same as 'frame N' when this 'VarFrameRoot' was created.
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unsigned long long currentFrameBase;
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unsigned long long currentFrameCodeAddress;
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friend class VariableTree;
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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class WatchRoot : public TrimmableItem
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{
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public:
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WatchRoot(VariableTree *parent);
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virtual ~WatchRoot();
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};
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/***************************************************************************/
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/***************************************************************************/
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/***************************************************************************/
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}
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#endif
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