added tab system

notebook.cpp

@@ -1,9 +1,11 @@
 #include "QWidget"
 #include "QList"
+#include "QLayout"
 #include "notebook.h"
 #include "notebooktab.h"
 #include "notebookpage.h"
 #include "notebookbutton.h"
+#include "QFormLayout"
 
 Notebook::Notebook(QWidget *parent)
     : QWidget(parent),
@@ -22,26 +24,48 @@ Notebook::Notebook(QWidget *parent)
 NotebookPage* Notebook::addPage()
 {
     auto tab = new NotebookTab(this);
-    auto page = new NotebookPage(this, tab);
+    auto page = new NotebookPage(tab);
+
+    if (pages.count() == 0)
+    {
+        select(page);
+    }
 
     this->pages.append(page);
 
-    layout();
-
     return page;
 }
 
-void Notebook::layout()
+void Notebook::select(NotebookPage* page)
+{
+    if (selected != nullptr)
+    {
+        selected->setParent(nullptr);
+        selected->tab->setSelected(false);
+    }
+
+    if (page != nullptr)
+    {
+        page->setParent(this);
+        page->tab->setSelected(true);
+    }
+
+    selected = page;
+
+    performLayout();
+}
+
+void Notebook::performLayout()
 {
     int x = 48, y = 0;
     int tabHeight = 16;
-    bool firstInLine = true;
+    bool first = true;
 
-    for (auto &i : this->pages)
+    for (auto &i : pages)
     {
         tabHeight = i->tab->height();
 
-        if (!firstInLine && (i == this->pages.last() ? tabHeight : 0) + x + i->width() > this->width())
+        if (!first && (i == pages.last() ? tabHeight : 0) + x + i->tab->width() > width())
         {
             y +=i->tab->height();
             i->tab->move(0, y);
@@ -53,13 +77,19 @@ void Notebook::layout()
             x += i->tab->width();
         }
 
-        firstInLine = false;
+        first = false;
     }
 
     this->addButton.move(x, y);
+
+    if (selected != nullptr)
+    {
+        selected->move(0, y + tabHeight);
+        selected->resize(width(), height() - y - tabHeight);
+    }
 }
 
 void Notebook::resizeEvent(QResizeEvent *)
 {
-    layout();
+    performLayout();
 }

notebook.h

@@ -18,6 +18,9 @@ public:
 
     enum HighlightType { none, highlighted, newMessage };
 
+    void select(NotebookPage* page);
+    void performLayout();
+
 protected:
     void resizeEvent(QResizeEvent *);
 
@@ -28,7 +31,7 @@ private:
     NotebookButton settingsButton;
     NotebookButton userButton;
 
-    void layout();
+    NotebookPage* selected = nullptr;
 };
 
 #endif // NOTEBOOK_H

notebookpage.cpp

@@ -1,9 +1,20 @@
 #include "QWidget"
+#include "QPainter"
 #include "notebookpage.h"
 #include "notebooktab.h"
 
-NotebookPage::NotebookPage(QWidget *parent, NotebookTab *tab)
-    : QWidget(parent)
+NotebookPage::NotebookPage(NotebookTab *tab)
 {
     this->tab = tab;
+    tab->page = this;
+}
+
+void NotebookPage::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+
+    painter.setPen(QColor(255, 0, 0));
+    painter.drawRect(0, 0, width() - 1, height() - 1);
+
+    painter.drawText(8, 8, QString::number(tab->x()));
 }

notebookpage.h

@@ -2,16 +2,19 @@
 #define NOTEBOOKPAGE_H
 
 #include "QWidget"
-
-class NotebookTab;
+#include "notebookpage.h"
+#include "notebooktab.h"
 
 class NotebookPage : public QWidget
 {
 Q_OBJECT
 
 public:
-    NotebookPage(QWidget *parent, NotebookTab *tab);
+    NotebookPage(NotebookTab *tab);
     NotebookTab* tab;
+
+protected:
+    void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
 };
 
 #endif // NOTEBOOKPAGE_H

notebooktab.cpp

@@ -1,49 +1,96 @@
 #include "notebook.h"
 #include "notebooktab.h"
-#include "notebookpage.h"
 #include "QPainter"
 
 NotebookTab::NotebookTab(Notebook *notebook)
     : QWidget(notebook)
 {
     this->notebook = notebook;
+    text = "<no title>";
 
-    resize(100, 24);
+    calcSize();
+}
+
+void NotebookTab::setSelected(bool value)
+{
+    selected = value;
+    repaint();
+}
+
+bool NotebookTab::getSelected()
+{
+    return selected;
+}
+
+void NotebookTab::calcSize()
+{
+    resize(fontMetrics().width(text) + 8, 24);
 }
 
 void NotebookTab::paintEvent(QPaintEvent *)
 {
     QPainter painter(this);
 
-    painter.setBrush(this->mouseDown ? QColor(0, 255, 0) : (this->mouseOver ? QColor(255, 0, 0) : QColor(0, 0, 255)));
+    QColor bg = QColor(255, 255, 255), fg = QColor(0, 0, 0);
 
-    painter.drawRect(0, 0, this->width(), this->height());
+//    if (selected)
+//    {
+//        bg = App.ColorScheme.TabSelectedBG;
+//        text = App.ColorScheme.TabSelectedText;
+//    }
+//    else if (mouseOver)
+//    {
+//        bg = App.ColorScheme.TabHoverBG;
+//        text = App.ColorScheme.TabHoverText;
+//    }
+//    else if ()
+//    {
+//        bg = App.ColorScheme.TabHighlightedBG;
+//        text = App.ColorScheme.TabHighlightedText;
+//    }
+//    else if ()
+//    {
+//        bg = App.ColorScheme.TabNewMessageBG;
+//        text = App.ColorScheme.TabHighlightedText;
+//    }
+//    else
+//    {
+//        bg = App.ColorScheme.TabBG;
+//        text = App.ColorScheme.TabText;
+//    }
+
+    painter.fillRect(rect(), bg);
+
+    painter.setPen(fg);
+    painter.drawText(4, (height() + fontMetrics().height()) / 2, text);
 }
 
 void NotebookTab::mousePressEvent(QMouseEvent *)
 {
     mouseDown = true;
 
-    this->repaint();
+    repaint();
 }
 
 void NotebookTab::mouseReleaseEvent(QMouseEvent *)
 {
     mouseDown = false;
 
-    this->repaint();
+    repaint();
+
+    notebook->select(page);
 }
 
 void NotebookTab::enterEvent(QEvent *)
 {
     mouseOver = true;
 
-    this->repaint();
+    repaint();
 }
 
 void NotebookTab::leaveEvent(QEvent *)
 {
     mouseOver = false;
 
-    this->repaint();
+    repaint();
 }

notebooktab.h

@@ -1,10 +1,10 @@
 #ifndef NOTEBOOKTAB_H
 #define NOTEBOOKTAB_H
 
-#include "QObject"
-#include "notebookpage.h"
+#include "QWidget"
 
 class Notebook;
+class NotebookPage;
 
 class NotebookTab : public QWidget
 {
@@ -13,6 +13,14 @@ Q_OBJECT
 public:
     NotebookTab(Notebook *notebook);
 
+    void calcSize();
+
+    NotebookPage* page;
+    QString text;
+
+    bool getSelected();
+    void setSelected(bool value);
+
 protected:
     void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
 
@@ -21,12 +29,10 @@ protected:
     void enterEvent(QEvent *) Q_DECL_OVERRIDE;
     void leaveEvent(QEvent *) Q_DECL_OVERRIDE;
 
-    bool IsSelected();
-
 private:
     Notebook *notebook;
+    bool selected = false;
 
-    bool isSelected;
     bool mouseOver = false;
     bool mouseDown = false;
 };