1 /////////////////////////////////////////////////////////////////////////////
2 // WinMerge: an interactive diff/merge utility
3 // Copyright (C) 1997 Dean P. Grimm
4 // SPDX-License-Identifier: GPL-2.0-or-later
5 /////////////////////////////////////////////////////////////////////////////
7 * @file MergeEditView.h
9 * @brief Declaration file for CMergeEditView
15 * @brief Non-diff lines shown above diff when scrolling to it
17 const UINT CONTEXT_LINES_ABOVE = 5;
20 * @brief Non-diff lines shown below diff when scrolling to it
22 const UINT CONTEXT_LINES_BELOW = 3;
25 #define FLAG_RESCAN_WAITS_FOR_IDLE 1
28 /////////////////////////////////////////////////////////////////////////////
29 // CMergeEditView view
31 #include "GhostTextView.h"
32 #include "OptionsDiffColors.h"
36 class IMergeEditStatus;
42 This class is the base class for WinMerge editor panels.
43 It hooks the painting of ghost lines (GetLineColors), the shared
44 scrollbar (OnUpdateSibling...).
45 It offers the UI interface commands to work with diffs
48 If we keep GetLineColors here, we should clear DIFF flag here
49 and not in CGhostTextBuffer (when insertText/deleteText).
50 Small problem... This class doesn't derives from CGhostTextBuffer...
51 We could define a new class which derives from CGhostTextBuffer to clear the DIFF flag.
52 and calls a virtual function for additional things to do on the flag.
53 Maybe in the future...
55 class CMergeEditView : public CGhostTextView
58 CMergeEditView(); // protected constructor used by dynamic creation
59 DECLARE_DYNCREATE(CMergeEditView)
60 CCrystalParser m_xParser; /**< Syntax parser used for syntax highlighting. */
65 * Index of pane this view is attached to.
66 * This indicates the pane number the view is attached to. If we swap panes
67 * then these indexes are changed.
72 IMergeEditStatus * m_piMergeEditStatus; /**< interface to status bar */
75 /// first line of diff (first displayable line)
77 /// last line of diff (last displayable line)
82 This flag is set when we receive an OnTimer command, and we want
83 to wait for theApp::OnIdle before processing it
85 unsigned fTimerWaitingForIdle;
86 COLORSETTINGS m_cachedColors; /**< Cached color settings */
88 /// active prediffer ID : helper to check the radio button
89 int m_CurrentPredifferID;
91 bool m_bCurrentLineIsDiff; /**< `true` if cursor is in diff line */
93 bool m_bChangedSchemeManually; /**< `true` if the syntax highlighting scheme is changed manually */
97 void CopyProperties (CCrystalTextView* pSource) override;
101 void RefreshOptions();
102 bool IsReadOnly(int pane) const;
103 void ShowDiff(bool bScroll, bool bSelectText);
104 virtual void OnEditOperation(int nAction, LPCTSTR pszText, size_t cchText) override;
105 bool IsLineInCurrentDiff(int nLine) const;
107 void SelectDiff(int nDiff, bool bScroll = true, bool bSelectText = true);
108 void DeselectDiffIfCursorNotInCurrentDiff();
109 virtual CCrystalTextBuffer *LocateTextBuffer ();
110 const CCrystalTextBuffer *LocateTextBuffer () const { return const_cast<CMergeEditView *>(this)->LocateTextBuffer(); };
111 void GetFullySelectedDiffs(int & firstDiff, int & lastDiff);
112 void GetFullySelectedDiffs(int & firstDiff, int & lastDiff, int & firstWordDiff, int & lastWordDiff, const CPoint *pptStart = nullptr, const CPoint *ppEnd = nullptr);
113 void GetSelectedDiffs(int & firstDiff, int & lastDiff);
114 std::map<int, std::vector<int>> GetColumnSelectedWordDiffIndice();
115 CString GetSelectedText();
116 std::pair<int, int> GetSelectedLineAndCharacterCount();
117 CString GetLineText(int idx);
118 CMergeDoc* GetDocument();
119 const CMergeDoc *GetDocument() const { return const_cast<CMergeEditView *>(this)->GetDocument(); }
120 void UpdateResources();
121 bool IsModified() { return (LocateTextBuffer()->IsModified()); }
122 void PrimeListWithFile();
123 void SetStatusInterface(IMergeEditStatus * piMergeEditStatus);
124 void SelectArea(const CPoint & ptStart, const CPoint & ptEnd) { SetSelection(ptStart, ptEnd); } // make public
125 using CGhostTextView::GetSelection;
126 virtual void UpdateSiblingScrollPos (bool bHorz) override;
127 virtual std::vector<CrystalLineParser::TEXTBLOCK> GetMarkerTextBlocks(int nLineIndex) const;
128 virtual std::vector<CrystalLineParser::TEXTBLOCK> GetAdditionalTextBlocks (int nLineIndex) override;
129 virtual COLORREF GetColor(int nColorIndex) const override;
130 virtual void GetLineColors (int nLineIndex, COLORREF & crBkgnd,
131 COLORREF & crText, bool & bDrawWhitespace) override;
132 virtual void GetLineColors2 (int nLineIndex, DWORD ignoreFlags
133 , COLORREF & crBkgnd, COLORREF & crText, bool & bDrawWhitespace);
134 void WMGoto() { OnWMGoto(); };
135 void GotoLine(UINT nLine, bool bRealLine, int pane, bool bMoveAnchor = true);
136 int GetTopLine() const { return m_nTopLine; }
137 using CCrystalTextView::GetScreenLines;
138 int GetTopSubLine() const { return m_nTopSubLine; }
139 using CCrystalTextView::GetSubLines;
140 using CCrystalTextView::GetSubLineCount;
141 using CCrystalTextView::GetSubLineIndex;
142 using CCrystalTextView::GetLineBySubLine;
143 virtual int GetEmptySubLines( int nLineIndex ) override;
144 virtual void InvalidateSubLineIndexCache( int nLineIndex ) override;
145 void RepaintLocationPane();
146 void SetPredifferByMenu(UINT nID);
147 void DocumentsLoaded();
148 void UpdateLocationViewPosition(int nTopLine = -1, int nBottomLine = -1);
149 virtual void RecalcPageLayouts(CDC * pdc, CPrintInfo * pInfo) override;
150 virtual void GetPrintHeaderText(int nPageNum, CString & text) override;
151 virtual void PrintHeader(CDC * pdc, int nPageNum) override;
152 virtual void PrintFooter(CDC * pdc, int nPageNum) override;
153 virtual void SetWordWrapping( bool bWordWrap ) override;
154 void UpdateStatusbar();
155 CMergeEditView *GetGroupView(int nPane) const;
157 virtual void OnDisplayDiff(int nDiff=0);
159 // to customize the mergeview menu
160 HMENU createPrediffersSubmenu(HMENU hMenu);
162 bool IsInitialized() const;
163 bool IsCursorInDiff() const;
164 bool IsDiffVisible(int nDiff);
165 void ZoomText(short amount);
166 virtual bool QueryEditable() override;
167 virtual void EnsureVisible(CPoint pt) override;
168 virtual void EnsureVisible(CPoint ptStart, CPoint ptEnd) override;
169 bool EnsureInDiff(CPoint& pt);
170 void SetSelection(const CPoint& ptStart, const CPoint& ptEnd, bool bUpdateView = true) override;
171 void ScrollToSubLine(int nNewTopLine, bool bNoSmoothScroll = false, bool bTrackScrollBar = true) override;
172 void SetActivePane();
175 // ClassWizard generated virtual function overrides
176 //{{AFX_VIRTUAL(CMergeEditView)
178 virtual void OnInitialUpdate();
180 virtual void OnActivateView(BOOL bActivate, CView* pActivateView, CView* pDeactiveView);
181 virtual void OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint);
182 virtual BOOL PreTranslateMessage(MSG* pMsg);
183 virtual void OnBeginPrinting (CDC * pDC, CPrintInfo * pInfo);
184 virtual void OnEndPrinting (CDC * pDC, CPrintInfo * pInfo);
185 virtual void OnPrint(CDC* pDC, CPrintInfo* pInfo);
190 virtual ~CMergeEditView();
191 virtual void OnUpdateSibling (CCrystalTextView * pUpdateSource, bool bHorz) override;
192 virtual void OnUpdateCaret() override;
193 bool MergeModeKeyDown(MSG* pMsg);
194 bool IsDiffVisible(const DIFFRANGE& diff, int nLinesBelow = 0);
195 void OnNext3wayDiff(int type);
196 void OnUpdateNext3wayDiff(CCmdUI* pCmdUI, int type);
197 void OnPrev3wayDiff(int type);
198 void OnUpdatePrev3wayDiff(CCmdUI* pCmdUI, int type);
199 void OnDropFiles(const std::vector<String>& files);
201 // Generated message map functions
203 //{{AFX_MSG(CMergeEditView)
204 afx_msg void OnCurdiff();
205 afx_msg void OnUpdateCurdiff(CCmdUI* pCmdUI);
206 afx_msg void OnEditCopy();
207 afx_msg void OnUpdateEditCopy(CCmdUI* pCmdUI);
208 afx_msg void OnEditCut();
209 afx_msg void OnUpdateEditCut(CCmdUI* pCmdUI);
210 afx_msg void OnEditPaste();
211 afx_msg void OnUpdateEditPaste(CCmdUI* pCmdUI);
212 afx_msg void OnEditUndo();
213 afx_msg void OnFirstdiff();
214 afx_msg void OnUpdateFirstdiff(CCmdUI* pCmdUI);
215 afx_msg void OnLastdiff();
216 afx_msg void OnUpdateLastdiff(CCmdUI* pCmdUI);
217 afx_msg void OnNextdiff();
218 afx_msg void OnUpdateNextdiff(CCmdUI* pCmdUI);
219 afx_msg void OnPrevdiff();
220 afx_msg void OnUpdatePrevdiff(CCmdUI* pCmdUI);
221 afx_msg void OnNextConflict();
222 afx_msg void OnUpdateNextConflict(CCmdUI* pCmdUI);
223 afx_msg void OnPrevConflict();
224 afx_msg void OnUpdatePrevConflict(CCmdUI* pCmdUI);
225 afx_msg void OnNextdiffLM();
226 afx_msg void OnUpdateNextdiffLM(CCmdUI* pCmdUI);
227 afx_msg void OnPrevdiffLM();
228 afx_msg void OnUpdatePrevdiffLM(CCmdUI* pCmdUI);
229 afx_msg void OnNextdiffLR();
230 afx_msg void OnUpdateNextdiffLR(CCmdUI* pCmdUI);
231 afx_msg void OnPrevdiffLR();
232 afx_msg void OnUpdatePrevdiffLR(CCmdUI* pCmdUI);
233 afx_msg void OnNextdiffMR();
234 afx_msg void OnUpdateNextdiffMR(CCmdUI* pCmdUI);
235 afx_msg void OnPrevdiffMR();
236 afx_msg void OnUpdatePrevdiffMR(CCmdUI* pCmdUI);
237 afx_msg void OnNextdiffLO();
238 afx_msg void OnUpdateNextdiffLO(CCmdUI* pCmdUI);
239 afx_msg void OnPrevdiffLO();
240 afx_msg void OnUpdatePrevdiffLO(CCmdUI* pCmdUI);
241 afx_msg void OnNextdiffMO();
242 afx_msg void OnUpdateNextdiffMO(CCmdUI* pCmdUI);
243 afx_msg void OnPrevdiffMO();
244 afx_msg void OnUpdatePrevdiffMO(CCmdUI* pCmdUI);
245 afx_msg void OnNextdiffRO();
246 afx_msg void OnUpdateNextdiffRO(CCmdUI* pCmdUI);
247 afx_msg void OnPrevdiffRO();
248 afx_msg void OnUpdatePrevdiffRO(CCmdUI* pCmdUI);
249 afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
250 afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
251 afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
252 afx_msg void OnAllLeft();
253 afx_msg void OnUpdateAllLeft(CCmdUI* pCmdUI);
254 afx_msg void OnAllRight();
255 afx_msg void OnUpdateAllRight(CCmdUI* pCmdUI);
256 afx_msg void OnAutoMerge();
257 afx_msg void OnUpdateAutoMerge(CCmdUI* pCmdUI);
258 afx_msg void OnX2Y(int srcPane, int dstPane, bool selectedLineOnly = false);
259 afx_msg void OnUpdateX2Y(int dstPane, CCmdUI* pCmdUI);
260 afx_msg void OnL2r();
261 afx_msg void OnUpdateL2r(CCmdUI* pCmdUI);
262 afx_msg void OnLinesL2r();
263 afx_msg void OnUpdateLinesL2r(CCmdUI* pCmdUI);
264 afx_msg void OnR2l();
265 afx_msg void OnUpdateR2l(CCmdUI* pCmdUI);
266 afx_msg void OnLinesR2l();
267 afx_msg void OnUpdateLinesR2l(CCmdUI* pCmdUI);
268 afx_msg void OnCopyFromLeft();
269 afx_msg void OnUpdateCopyFromLeft(CCmdUI* pCmdUI);
270 afx_msg void OnCopyLinesFromLeft();
271 afx_msg void OnUpdateCopyLinesFromLeft(CCmdUI* pCmdUI);
272 afx_msg void OnCopyFromRight();
273 afx_msg void OnUpdateCopyFromRight(CCmdUI* pCmdUI);
274 afx_msg void OnCopyLinesFromRight();
275 afx_msg void OnUpdateCopyLinesFromRight(CCmdUI* pCmdUI);
276 afx_msg void OnAddSyncPoint();
277 afx_msg void OnClearSyncPoints();
278 afx_msg void OnUpdateClearSyncPoints(CCmdUI* pCmdUI);
279 afx_msg void OnUpdateEditUndo(CCmdUI* pCmdUI);
280 afx_msg void OnEditRedo();
281 afx_msg void OnUpdateEditRedo(CCmdUI* pCmdUI);
282 afx_msg void OnTimer(UINT_PTR nIDEvent);
283 afx_msg void OnUpdateFileSaveLeft(CCmdUI* pCmdUI);
284 afx_msg void OnUpdateFileSaveMiddle(CCmdUI* pCmdUI);
285 afx_msg void OnUpdateFileSaveRight(CCmdUI* pCmdUI);
286 afx_msg void OnRefresh();
287 afx_msg void OnUpdateFileSave(CCmdUI* pCmdUI);
288 template<bool reversed>
289 afx_msg void OnSelectLineDiff();
290 afx_msg void OnUpdateSelectLineDiff(CCmdUI* pCmdUI);
291 afx_msg void OnAddToSubstitutionFilters();
292 afx_msg void OnUpdateAddToSubstitutionFilters(CCmdUI* pCmdUI);
293 afx_msg void OnContextMenu(CWnd* pWnd, CPoint point);
294 afx_msg void OnUpdateEditReplace(CCmdUI* pCmdUI);
295 afx_msg void OnLeftReadOnly();
296 afx_msg void OnUpdateLeftReadOnly(CCmdUI* pCmdUI);
297 afx_msg void OnMiddleReadOnly();
298 afx_msg void OnUpdateMiddleReadOnly(CCmdUI* pCmdUI);
299 afx_msg void OnRightReadOnly();
300 afx_msg void OnUpdateRightReadOnly(CCmdUI* pCmdUI);
301 afx_msg void OnUpdateStatusRO(CCmdUI* pCmdUI);
302 afx_msg void OnConvertEolTo(UINT nID );
303 afx_msg void OnUpdateConvertEolTo(CCmdUI* pCmdUI);
304 afx_msg void OnUpdateStatusEOL(CCmdUI* pCmdUI);
305 afx_msg void OnL2RNext();
306 afx_msg void OnUpdateL2RNext(CCmdUI* pCmdUI);
307 afx_msg void OnR2LNext();
308 afx_msg void OnUpdateR2LNext(CCmdUI* pCmdUI);
309 afx_msg void OnChangePane();
310 afx_msg void OnWMGoto();
311 afx_msg void OnGotoMovedLineLM();
312 afx_msg void OnUpdateGotoMovedLineLM(CCmdUI* pCmdUI);
313 afx_msg void OnGotoMovedLineMR();
314 afx_msg void OnUpdateGotoMovedLineMR(CCmdUI* pCmdUI);
315 afx_msg void OnShellMenu();
316 afx_msg void OnUpdateShellMenu(CCmdUI* pCmdUI);
317 afx_msg void OnScripts(UINT nID );
318 afx_msg void OnUpdatePrediffer(CCmdUI* pCmdUI);
319 afx_msg void OnNoPrediffer();
320 afx_msg void OnPrediffer(UINT nID );
321 afx_msg void OnHScroll (UINT nSBCode, UINT nPos, CScrollBar * pScrollBar);
322 afx_msg void OnVScroll (UINT nSBCode, UINT nPos, CScrollBar * pScrollBar);
323 afx_msg void OnEditCopyLineNumbers();
324 afx_msg void OnUpdateEditCopyLinenumbers(CCmdUI* pCmdUI);
325 afx_msg void OnViewLineDiffs();
326 afx_msg void OnUpdateViewLineDiffs(CCmdUI* pCmdUI);
327 afx_msg void OnViewLineNumbers();
328 afx_msg void OnUpdateViewLineNumbers(CCmdUI* pCmdUI);
329 afx_msg void OnViewWordWrap();
330 afx_msg void OnUpdateViewWordWrap(CCmdUI* pCmdUI);
331 afx_msg void OnViewWhitespace();
332 afx_msg void OnUpdateViewWhitespace(CCmdUI* pCmdUI);
333 afx_msg void OnViewEOL();
334 afx_msg void OnUpdateViewEOL(CCmdUI* pCmdUI);
335 afx_msg void OnOpenFile();
336 afx_msg void OnOpenFileWith();
337 afx_msg void OnOpenFileWithEditor();
338 afx_msg void OnOpenParentFolder();
339 afx_msg void OnViewSwapPanes12();
340 afx_msg void OnViewSwapPanes23();
341 afx_msg void OnViewSwapPanes13();
342 afx_msg void OnSize(UINT nType, int cx, int cy);
343 afx_msg void OnHelp();
344 afx_msg void OnViewMargin();
345 afx_msg void OnUpdateViewMargin(CCmdUI* pCmdUI);
346 afx_msg void OnUpdateViewChangeScheme(CCmdUI *pCmdUI);
347 afx_msg void OnChangeScheme(UINT nID);
348 afx_msg void OnUpdateChangeScheme(CCmdUI* pCmdUI);
349 afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
350 afx_msg void OnMouseHWheel(UINT nFlags, short zDelta, CPoint pt);
351 afx_msg void OnViewZoomIn();
352 afx_msg void OnViewZoomOut();
353 afx_msg void OnViewZoomNormal();
354 afx_msg void OnWindowSplit();
355 afx_msg void OnUpdateWindowSplit(CCmdUI* pCmdUI);
356 afx_msg void OnStatusBarDblClick(NMHDR* pNMHDR, LRESULT* pResult);
359 DECLARE_MESSAGE_MAP()
362 #ifndef _DEBUG // debug version in DiffView.cpp
363 inline CMergeDoc* CMergeEditView::GetDocument()
364 { return reinterpret_cast<CMergeDoc*>(m_pDocument); }
368 * @brief Check if cursor is inside difference.
369 * @return true if cursor is inside difference.
371 inline bool CMergeEditView::IsCursorInDiff() const
373 return m_bCurrentLineIsDiff;