From: hama <hama@siduction.net>
Date: Sun, 21 Jun 2015 10:16:14 +0000 (+0200)
Subject: baseic editor actions (navigation)
X-Git-Url: https://gitweb.hamatoma.de/?a=commitdiff_plain;h=c0c6dc4719fbb1e124d426f4a437d051576877a4;p=reqt

baseic editor actions (navigation)
---

diff --git a/appl/reditor/reditor.pro b/appl/reditor/reditor.pro
index b22b7ab..24ec39a 100644
--- a/appl/reditor/reditor.pro
+++ b/appl/reditor/reditor.pro
@@ -20,8 +20,6 @@ SOURCES += main.cpp\
 
 
 HEADERS  += mainwindow.hpp \
-	 ../../gui/ReEdit \
-	 ../../gui/ReEdit.hpp \
 	 ../../base/rebase.hpp \
 	 ../../gui/regui.hpp
 
diff --git a/gui/ReEdit.cpp b/gui/ReEdit.cpp
index dc6e5db..2bd3288 100644
--- a/gui/ReEdit.cpp
+++ b/gui/ReEdit.cpp
@@ -114,6 +114,7 @@ ReEdit::ReEdit(QWidget* parent) :
             m_keyControlShift(),
             m_keyRaw(),
             m_keyShift(){
+    setFocusPolicy(Qt::WheelFocus);
    m_standardFont = new QFont("Courier");
    m_standardFont->setStyleHint(QFont::TypeWriter);
    m_standardFont->setPixelSize(16);
@@ -288,7 +289,7 @@ void ReEdit::keyPressEvent(QKeyEvent* event){
       else
          map = &m_keyAltControlShift;
       if (map->contains(event->key())){
-         EditorAction action = (*map)[event->key()];
+         EditorAction action = (*map)[key];
          editorAction(action);
       }
    }
@@ -304,12 +305,34 @@ int ReEdit::cursorLine() const{
    return m_cursorLine;
 }
 
+/**
+ * Ensures that the cursor line is visible.
+ *
+ * @param cursorLine    -1 or number of the new cursor line
+ */
+void ReEdit::ensureVisible(int cursorLine){
+    if (cursorLine >= 0)
+        m_cursorLine = cursorLine;
+    int firstLine = m_paragraphs.firstLine();
+    int count = m_paragraphs.list().length();
+    if (m_cursorLine < firstLine){
+        m_paragraphs.load(m_cursorLine, count, this);
+    } else if (m_firstLine > firstLine + count - 1){
+        int maxNo = m_lines->lineCount();
+        if (m_firstLine < maxNo - count - 1)
+            m_paragraphs.load(m_cursorLine, count, this);
+        else
+            m_paragraphs.load(maxNo - count - 1, count, this);
+     }
+}
+
 /**
  * Does an editor action.
  *
  * @param action    action to do
  */
 void ReEdit::editorAction(ReEdit::EditorAction action){
+    int pageSize = m_paragraphs.list().length() - 1;
    switch (action) {
    case EA_UNDEF:
       break;
@@ -321,29 +344,49 @@ void ReEdit::editorAction(ReEdit::EditorAction action){
       m_cursorCol++;
       break;
    case EA_LINE_UP:
-      break;
       if (--m_cursorLine < 0)
          m_cursorLine = 0;
+      ensureVisible();
       break;
    case EA_LINE_DOWN:
-      m_cursorLine++;
+      if (++m_cursorLine >= m_lines->lineCount())
+          m_cursorLine = m_lines->lineCount() - 1;
+      ensureVisible();
       break;
    case EA_BEGIN_OF_LINE:
       m_cursorCol = -1;
+      ensureVisible();
       break;
    case EA_END_OF_LINE:
       m_cursorCol = 99;
+      ensureVisible();
       break;
    case EA_BEGIN_OF_FILE:
-      m_cursorLine = 0;
+      ensureVisible(0);
       break;
    case EA_END_OF_FILE:
-      m_cursorLine = m_lines->lineCount() - 1;
+      ensureVisible(m_lines->lineCount() - 1);
       break;
    case EA_PAGE_UP:
-      break;
+       // Do not change cursor line!
+       if (m_paragraphs.firstLine() > 0)
+       {
+           int line = m_paragraphs.firstLine() - pageSize;
+           if (line < 0)
+               line = 0;
+           m_paragraphs.load(0, pageSize + 1, this);
+       }
+       break;
    case EA_PAGE_DOWN:
-      break;
+       // Do not change cursor line!
+       if (m_paragraphs.firstLine() < m_lines->lineCount() - pageSize)
+       {
+           int line = m_paragraphs.firstLine() + pageSize;
+           if (line > m_lines->lineCount() - pageSize)
+               line = m_lines->lineCount() - pageSize;
+           m_paragraphs.load(line, pageSize + 1, this);
+       }
+       break;
    case EA_DEL_CHAR:
       break;
    case EA_BACKSPACE:
@@ -357,6 +400,7 @@ void ReEdit::editorAction(ReEdit::EditorAction action){
    default:
       break;
    }
+   emit repaint();
 }
 
 /**
@@ -389,6 +433,7 @@ void ReEdit::setLines(ReLines* lines){
    int count = height();
    count = count / heightToFullHeight(m_standardMetrics->height()) + 1;
    m_paragraphs.load(m_cursorLine, count, this);
+   emit repaint();
 }
 
 /**
diff --git a/gui/ReEdit.hpp b/gui/ReEdit.hpp
index fda026d..e4e2a0a 100644
--- a/gui/ReEdit.hpp
+++ b/gui/ReEdit.hpp
@@ -254,7 +254,9 @@ public:
    }
 
 protected:
-   QBrush*createBrush(ReLook::BackGround background);signals:
+   QBrush*createBrush(ReLook::BackGround background);
+   void ensureVisible(int cursorLine = -1);
+//signals:
 
 public slots:
    virtual void paintEvent(QPaintEvent *);