| 1 | /*
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| 2 | * Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de.
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| 3 | * Distributed under the terms of the MIT license.
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| 4 | */
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| 5 | #ifndef HYPER_TEXT_VIEW_H
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| 6 | #define HYPER_TEXT_VIEW_H
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| 7 |
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| 8 | #include <TextView.h>
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| 9 |
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| 10 |
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| 11 | // TODO: The current implementation works correctly only for insertions at the
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| 12 | // end of the text. It doesn't keep track of any other insertions or deletions.
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| 13 |
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| 14 |
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| 15 | class HyperTextView;
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| 16 |
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| 17 |
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| 18 | class HyperTextAction {
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| 19 | public:
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| 20 | HyperTextAction(int32 event);
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| 21 | virtual ~HyperTextAction();
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| 22 |
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| 23 | virtual void MouseOver(HyperTextView* view, BPoint where,
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| 24 | int32 startOffset, int32 endOffset,
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| 25 | BMessage* message);
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| 26 | virtual void MouseAway(HyperTextView* view, BPoint where,
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| 27 | int32 startOffset, int32 endOffset,
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| 28 | BMessage* message);
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| 29 | virtual void Clicked(HyperTextView* view, BPoint where,
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| 30 | BMessage* message);
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| 31 | private:
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| 32 | int32 fMessage;
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| 33 | };
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| 34 |
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| 35 |
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| 36 | class HyperTextView : public BTextView {
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| 37 | public:
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| 38 | HyperTextView(const char* name,
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| 39 | uint32 flags = B_WILL_DRAW
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| 40 | | B_PULSE_NEEDED);
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| 41 | HyperTextView(BRect frame, const char* name,
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| 42 | BRect textRect, uint32 resizeMask,
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| 43 | uint32 flags = B_WILL_DRAW
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| 44 | | B_PULSE_NEEDED);
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| 45 | virtual ~HyperTextView();
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| 46 |
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| 47 | virtual void MouseDown(BPoint where);
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| 48 | virtual void MouseUp(BPoint where);
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| 49 | virtual void MouseMoved(BPoint where, uint32 transit,
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| 50 | const BMessage* dragMessage);
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| 51 |
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| 52 | virtual bool HasHeightForWidth() override;
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| 53 | virtual void GetHeightForWidth(float width, float* min,
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| 54 | float* max, float* preferred) override;
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| 55 |
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| 56 | void SetText(const char* text);
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| 57 |
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| 58 | void AddHyperTextAction(int32 startOffset,
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| 59 | int32 endOffset, HyperTextAction* action);
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| 60 |
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| 61 | void InsertHyperText(const char* inText,
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| 62 | HyperTextAction* action,
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| 63 | const text_run_array* inRuns = NULL);
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| 64 | void InsertHyperText(const char* inText,
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| 65 | int32 inLength, HyperTextAction* action,
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| 66 | const text_run_array* inRuns = NULL);
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| 67 | private:
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| 68 | struct ActionInfo;
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| 69 | class ActionInfoList;
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| 70 |
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| 71 | HyperTextAction* _ActionAt(const BPoint& where) const;
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| 72 | const ActionInfo* _ActionInfoAt(const BPoint& where) const;
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| 73 |
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| 74 | private:
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| 75 | ActionInfoList* fActionInfos;
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| 76 | const ActionInfo* fLastActionInfo;
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| 77 | };
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| 78 |
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| 79 |
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| 80 | #endif // HYPER_TEXT_VIEW_H
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