Differential D19164 Diff 53087 layers/selections/text/kpTextSelection_Cursor.cpp

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layers/selections/text/kpTextSelection_Cursor.cpp

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41 41​
42#include <QFontMetrics> 42​#include <QFontMetrics>
43#include <QList> 43​#include <QList>
44 44​
45 45​
46// public 46​// public
47int kpTextSelection::closestTextRowForPoint (const QPoint &point) const 47​int kpTextSelection::closestTextRowForPoint (const QPoint &point) const
48{ 48​{
49 if (!pointIsInTextArea (point)) 49​ if (!pointIsInTextArea (point)) {
50 return -1; 50​ return -1;
51​ }
51 52​
52 const QFontMetrics fontMetrics (d->textStyle.fontMetrics ()); 53​ const QFontMetrics fontMetrics (d->textStyle.fontMetrics ());
53 54​
54 int row = (point.y () - textAreaRect ().y ()) / 55​ int row = (point.y () - textAreaRect ().y ()) /
55 fontMetrics.lineSpacing (); 56​ fontMetrics.lineSpacing ();
56 if (row >= static_cast<int> (d->textLines.size ())) 57​ if (row >= static_cast<int> (d->textLines.size ())) {
57 row = d->textLines.size () - 1; 58​ row = d->textLines.size () - 1;
59​ }
58 60​
59 return row; 61​ return row;
60} 62​}
61 63​
62// public 64​// public
63int kpTextSelection::closestTextColForPoint (const QPoint &point) const 65​int kpTextSelection::closestTextColForPoint (const QPoint &point) const
64{ 66​{
65 int row = closestTextRowForPoint (point); 67​ int row = closestTextRowForPoint (point);
66 if (row < 0 || row >= static_cast<int> (d->textLines.size ())) 68​ if (row < 0 || row >= static_cast<int> (d->textLines.size ())) {
67 return -1; 69​ return -1;
70​ }
68 71​
69 const int localX = point.x () - textAreaRect ().x (); 72​ const int localX = point.x () - textAreaRect ().x ();
70 73​
71 const QFontMetrics fontMetrics (d->textStyle.fontMetrics ()); 74​ const QFontMetrics fontMetrics (d->textStyle.fontMetrics ());
72 75​
73 // (should be 0 but call just in case) 76​ // (should be 0 but call just in case)
74 int charLocalLeft = fontMetrics.width (d->textLines [row], 0); 77​ int charLocalLeft = fontMetrics.width (d->textLines [row], 0);
75 78​
76 // OPT: binary search or guess location then move 79​ // OPT: binary search or guess location then move
77 for (int col = 0; col < static_cast<int> (d->textLines [row].length ()); col++) 80​ for (int col = 0; col < static_cast<int> (d->textLines [row].length ()); col++)
78 { 81​ {
79 // OPT: fontMetrics::charWidth() might be faster 82​ // OPT: fontMetrics::charWidth() might be faster
80 const int nextCharLocalLeft = fontMetrics.width (d->textLines [row], col + 1); 83​ const int nextCharLocalLeft = fontMetrics.width (d->textLines [row], col + 1);
81 if (localX <= (charLocalLeft + nextCharLocalLeft) / 2) 84​ if (localX <= (charLocalLeft + nextCharLocalLeft) / 2) {
82 return col; 85​ return col;
86​ }
83 87​
84 charLocalLeft = nextCharLocalLeft; 88​ charLocalLeft = nextCharLocalLeft;
85 } 89​ }
86 90​
87 return d->textLines [row].length ()/*past end of line*/; 91​ return d->textLines [row].length ()/*past end of line*/;
88} 92​}
89 93​
90//--------------------------------------------------------------------- 94​//---------------------------------------------------------------------
91 95​
92// public 96​// public
93QPoint kpTextSelection::pointForTextRowCol (int row, int col) const 97​QPoint kpTextSelection::pointForTextRowCol (int row, int col) const
94{ 98​{
95 kpPreeditText preeditText = d->preeditText; 99​ kpPreeditText preeditText = d->preeditText;
96 if ((row < 0 || col < 0) || 100​ if ((row < 0 || col < 0) ||
97 (preeditText.isEmpty () && 101​ (preeditText.isEmpty () &&
98 (row >= static_cast<int> (d->textLines.size ()) || col > static_cast<int> (d->textLines [row].length ())))) 102​ (row >= static_cast<int> (d->textLines.size ()) || col > static_cast<int> (d->textLines [row].length ()))))
99 { 103​ {
100#if DEBUG_KP_SELECTION && 1 104​#if DEBUG_KP_SELECTION && 1
101 qCDebug(kpLogLayers) << "kpTextSelection::pointForTextRowCol(" 105​ qCDebug(kpLogLayers) << "kpTextSelection::pointForTextRowCol("
102 << row << "," 106​ << row << ","
103 << col << ") out of range" 107​ << col << ") out of range"
104 << " textLines='" 108​ << " textLines='"
105 << text () 109​ << text ()
106 << "'" 110​ << "'";
107 << endl; ​
108#endif 111​#endif
109 return KP_INVALID_POINT; 112​ return KP_INVALID_POINT;
110 } 113​ }
111 114​
112 const QFontMetrics fontMetrics (d->textStyle.fontMetrics ()); 115​ const QFontMetrics fontMetrics (d->textStyle.fontMetrics ());
113 116​
114 QString line = (d->textLines.count () > row) ? d->textLines[row] : QString (); 117​ QString line = (d->textLines.count () > row) ? d->textLines[row] : QString ();
115 if (row == preeditText.position ().y ()) 118​ if (row == preeditText.position ().y ())
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