Merge pull request #585 from PhenomRetroShare/Add_RSELidedItemDelegate

Add RSElidedItemDelegate.

retroshare-gui/src/gui/MessagesDialog.cpp

@@ -19,36 +19,37 @@
  *  Boston, MA  02110-1301, USA.
  ****************************************************************/
 
+#include <QDateTime>
+#include <QKeyEvent>
+#include <QMessageBox>
 #include <QStandardItemModel>
 #include <QShortcut>
 #include <QTimer>
-#include <QDateTime>
-#include <QMessageBox>
-#include <QKeyEvent>
 
 #include "MessagesDialog.h"
-#include "msgs/MessageComposer.h"
-#include "msgs/MessageWidget.h"
-#include "msgs/TagsMenu.h"
-#include "msgs/MessageUserNotify.h"
-#include "settings/rsharesettings.h"
+
+#include "notifyqt.h"
 #include "common/TagDefs.h"
 #include "common/PeerDefs.h"
-#include "common/RSItemDelegate.h"
-#include "gui/gxs/GxsIdTreeWidgetItem.h"
-#include "gui/gxs/GxsIdDetails.h"
+#include "common/RSElidedItemDelegate.h"
+#include "gxs/GxsIdTreeWidgetItem.h"
+#include "gxs/GxsIdDetails.h"
+#include "msgs/MessageComposer.h"
+#include "msgs/MessageInterface.h"
+#include "msgs/MessageUserNotify.h"
+#include "msgs/MessageWidget.h"
+#include "msgs/TagsMenu.h"
+#include "settings/rsharesettings.h"
+
 #include "util/DateTime.h"
 #include "util/RsProtectedTimer.h"
 #include "util/QtVersion.h"
-#include "notifyqt.h"
 
 #include <retroshare/rspeers.h>
 #include <retroshare/rsmsgs.h>
 
 #include <algorithm>
 
-#include "gui/msgs/MessageInterface.h"
-
 /* Images for context menu icons */
 #define IMAGE_MESSAGE          ":/images/folder-draft.png"
 #define IMAGE_MESSAGEREMOVE    ":/images/message-mail-imapdelete.png"
@@ -197,7 +198,7 @@ MessagesDialog::MessagesDialog(QWidget *parent)
     mMessageCompareRole->setRole(COLUMN_ATTACHEMENTS, ROLE_SORT);
     mMessageCompareRole->setRole(COLUMN_STAR, ROLE_SORT);
 
-    RSItemDelegate *itemDelegate = new RSItemDelegate(this);
+    RSElidedItemDelegate *itemDelegate = new RSElidedItemDelegate(this);
     itemDelegate->setSpacing(QSize(0, 2));
     ui.messageTreeWidget->setItemDelegate(itemDelegate);
 

retroshare-gui/src/gui/common/ElidedLabel.cpp

@@ -179,7 +179,7 @@ void ElidedLabel::paintEvent(QPaintEvent *event)
 	QPoint lastPos(-1,-1);
 	//Now we know how many lines to redraw at good position
 	foreach (pair, lLines){
-		lastPos = pair.second + QPoint(0, iTransY);
+		lastPos = pair.second + QPoint(0+ cr.left(), iTransY + cr.top());
 		pair.first.draw(&painter, lastPos);
 	}
 
@@ -203,10 +203,10 @@ void ElidedLabel::paintEvent(QPaintEvent *event)
 				iTransX = 0;
 		}
 
-		painter.drawText(QPoint(iTransX, y + fontMetrics.ascent()), elidedLastLine);
+		painter.drawText(QPoint(iTransX + cr.left(), y + fontMetrics.ascent() + cr.top()), elidedLastLine);
 		//Draw button to get ToolTip
-		mRectElision = QRect(iTransX + width - fontMetrics.width(ellipsisChar)
-		                     , y
+		mRectElision = QRect(iTransX + width - fontMetrics.width(ellipsisChar) + cr.left()
+		                     , y + cr.top()
 		                     , fontMetrics.width(ellipsisChar)
 		                     , fontMetrics.height() - 1);
 		painter.drawRoundRect(mRectElision);

retroshare-gui/src/gui/common/GroupTreeWidget.cpp

@@ -30,7 +30,7 @@
 #include "retroshare/rsgxsflags.h"
 
 #include "PopularityDefs.h"
-#include "RSItemDelegate.h"
+#include "RSElidedItemDelegate.h"
 #include "RSTreeWidgetItem.h"
 #include "gui/common/ElidedLabel.h"
 #include "gui/settings/rsharesettings.h"
@@ -89,7 +89,7 @@ GroupTreeWidget::GroupTreeWidget(QWidget *parent) :
 	}
 
 	/* Add own item delegate */
-	RSItemDelegate *itemDelegate = new RSItemDelegate(this);
+	RSElidedItemDelegate *itemDelegate = new RSElidedItemDelegate(this);
 	itemDelegate->setSpacing(QSize(0, 2));
 	ui->treeWidget->setItemDelegate(itemDelegate);
 

retroshare-gui/src/gui/common/RSElidedItemDelegate.cpp

@@ -0,0 +1,227 @@
+/****************************************************************
+ * This file is distributed under the following license:
+ *
+ * Copyright (c) 2010, RetroShare Team
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ ****************************************************************/
+
+#include "RSElidedItemDelegate.h"
+
+#include <QPainter>
+#include <QTextDocument>
+#include <QTextLayout>
+#include <QToolTip>
+
+RSElidedItemDelegate::RSElidedItemDelegate(QObject *parent)
+  : RSItemDelegate(parent)
+  , mElided(false)
+  , mOnlyPlainText(false)
+  , mContent("")
+{
+	mRectElision = QRect();
+}
+
+void RSElidedItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+	RSItemDelegate::paint(painter, option, index);
+}
+
+void RSElidedItemDelegate::drawDisplay(QPainter *painter, const QStyleOptionViewItem &option,
+                 const QRect &rect, const QString &text) const
+{
+	if (!text.isEmpty())
+	{
+		mContent = text;
+		QList<QPair<QTextLine,QPoint> > lLines;
+		QString elidedLastLine = "";
+		QFontMetrics fontMetrics = option.fontMetrics;
+		QRect cr = rect;
+		cr.adjust(spacing().width(), spacing().height(), -spacing().width(), -spacing().height());
+
+		bool didElide = false;
+		QChar ellipsisChar(0x2026);//= "…"
+		int lineSpacing = fontMetrics.lineSpacing();
+		int y = 0;
+
+		QString plainText = "";
+		if (mOnlyPlainText)
+		{
+			plainText = mContent;
+		} else {
+			QTextDocument td;
+			td.setHtml(mContent);
+			plainText = td.toPlainText();
+		}
+		plainText = plainText.replace("\n",QChar(QChar::LineSeparator));
+		plainText = plainText.replace("\r",QChar(QChar::LineSeparator));
+
+		if (painter) painter->setFont(option.font);
+		QTextLayout textLayout(plainText, option.font);
+		QTextOption to = textLayout.textOption();
+		to.setAlignment(option.displayAlignment);
+#if QT_VERSION >= 0x050000
+		bool wordWrap = option.features.testFlag(QStyleOptionViewItem::WrapText);
+#else
+		bool wordWrap = false;
+#endif
+		to.setWrapMode(wordWrap ? QTextOption::WrapAtWordBoundaryOrAnywhere : QTextOption::NoWrap);
+		textLayout.setTextOption(to);
+
+		textLayout.beginLayout();
+		forever {
+			//Get new line for text.
+			QTextLine line = textLayout.createLine();
+
+			if (!line.isValid())
+				break;// No more line to write
+
+			line.setLineWidth(cr.width());
+			int nextLineY = y + lineSpacing;
+
+			if ((cr.height() >= nextLineY + lineSpacing) && wordWrap) {
+				//Line written normaly, next line will too
+				lLines.append(QPair<QTextLine, QPoint>(line, QPoint(0, y)));
+				y = nextLineY;
+			} else {
+				//The next line can't be written.
+				QString lastLine = plainText.mid(line.textStart()).split(QChar(QChar::LineSeparator)).at(0);
+				QTextLine lineEnd = textLayout.createLine();
+				if (!lineEnd.isValid() && (wordWrap
+				                           || (fontMetrics.width(lastLine) < cr.width()))) {
+					//No more text for next line so this one is OK
+					lLines.append(QPair<QTextLine, QPoint>(line, QPoint(0, y)));
+					elidedLastLine="";
+					didElide = false;
+				} else {
+					//Text is left, so get elided text
+					if (lastLine == "") {
+						elidedLastLine = ellipsisChar;
+					} else {
+						elidedLastLine = fontMetrics.elidedText(lastLine, Qt::ElideRight, cr.width()-1);
+						if (elidedLastLine.right(1) != ellipsisChar)
+							elidedLastLine.append(ellipsisChar);//New line at end
+					}
+					didElide = true;
+					break;
+				}
+			}
+		}
+		textLayout.endLayout();
+
+		int iTransX, iTransY = iTransX = 0;
+		int iHeight = lLines.count() * lineSpacing;
+		if (didElide) iHeight += lineSpacing;
+
+		//Compute lines translation with alignment
+		if (option.displayAlignment & Qt::AlignTop)
+			iTransY = 0;
+		if (option.displayAlignment & Qt::AlignBottom)
+			iTransY = cr.height() - iHeight;
+		if (option.displayAlignment & Qt::AlignVCenter)
+			iTransY = (cr.height() - iHeight) / 2;
+
+		QPair<QTextLine,QPoint> pair;
+		QPoint lastPos(-1,-1);
+		//Now we know how many lines to redraw at good position
+		foreach (pair, lLines){
+			lastPos = pair.second + QPoint(0 + cr.left(), iTransY + cr.top());
+			if (painter) pair.first.draw(painter, lastPos);
+		}
+
+		//Print last elided line
+		if (didElide) {
+			int width = fontMetrics.width(elidedLastLine);
+			if (lastPos.y() == -1){
+				y = iTransY;// Only one line
+			} else {
+				y = lastPos.y() + lineSpacing;
+			}
+			if (width < cr.width()){
+				//Text don't taking all line (with line break), so align it
+				if (option.displayAlignment & Qt::AlignLeft)
+					iTransX = 0;
+				if (option.displayAlignment & Qt::AlignRight)
+					iTransX = cr.width() - width;
+				if (option.displayAlignment & Qt::AlignHCenter)
+					iTransX = (cr.width() - width) / 2;
+				if (option.displayAlignment & Qt::AlignJustify)
+					iTransX = 0;
+			}
+
+			if (painter) painter->drawText(QPoint(iTransX + cr.left(), y + fontMetrics.ascent() + cr.top()), elidedLastLine);
+			//Draw button to get ToolTip
+			mRectElision = QRect(iTransX + width - fontMetrics.width(ellipsisChar) + cr.left()
+			                     , y + cr.top()
+			                     , fontMetrics.width(ellipsisChar)
+			                     , fontMetrics.height() - 1);
+			if (painter) painter->drawRoundRect(mRectElision);
+
+		} else {
+			mRectElision = QRect();
+		}
+
+		mElided = didElide;
+	}
+}
+
+bool RSElidedItemDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index)
+{
+	if (event->type() == QEvent::MouseButtonPress) {
+		QMouseEvent *ev = static_cast<QMouseEvent *>(event);
+		if (ev) {
+			if (ev->buttons()==Qt::LeftButton) {
+				if (index.data().type() == QVariant::String) {
+					QString text = index.data().toString();
+					if (!text.isEmpty()) {
+						QRect rect = option.rect;
+						//Get decoration Rect to get rect == to rect sent in drawDisplay
+						if (index.data(Qt::DecorationRole).type() == QVariant::Pixmap) {
+							QPixmap pixmap = index.data(Qt::DecorationRole).value<QPixmap>();
+							if (!pixmap.isNull()) rect.adjust(pixmap.width() + 6,0,0,0);//Don't know where come from these 6 pixels...
+						}
+						if (index.data(Qt::DecorationRole).type() == QVariant::Image) {
+							QImage image = index.data(Qt::DecorationRole).value<QImage>();
+							if (!image.isNull()) rect.adjust(image.width() + 6,0,0,0);//Don't know where come from these 6 pixels...
+						}
+						if (index.data(Qt::DecorationRole).type() == QVariant::Icon) {
+							QIcon icon = index.data(Qt::DecorationRole).value<QIcon>();
+							if (!icon.isNull()) {
+								QSize size = icon.actualSize(rect.size());
+								rect.adjust(size.width() + 6,0,0,0);//Don't know where come from these 6 pixels...
+							}
+						}
+						//Get Font as option.font is not accurate
+						QStyleOptionViewItem newOption = option;
+						if (index.data(Qt::FontRole).type() == QVariant::Font) {
+							QFont font = index.data(Qt::FontRole).value<QFont>();
+							newOption.font = font;
+							newOption.fontMetrics = QFontMetrics(font);
+						}
+
+						//Update RSElidedItemDelegate as only one delegate for all items
+						drawDisplay(NULL, newOption, rect, text);
+						if (mElided && (mRectElision.contains(ev->pos()))){
+							QToolTip::showText(ev->globalPos(),QString("<FONT>") + mContent + QString("</FONT>"));
+							return true; // eat event
+						}
+					}
+				}
+			}
+		}
+	}
+	return RSItemDelegate::editorEvent(event, model, option, index);
+}

retroshare-gui/src/gui/common/RSElidedItemDelegate.h

@@ -0,0 +1,60 @@
+/****************************************************************
+ * This file is distributed under the following license:
+ *
+ * Copyright (c) 2010, RetroShare Team
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ ****************************************************************/
+
+#ifndef RSELIDEDITEMDELEGATE_H
+#define RSELIDEDITEMDELEGATE_H
+
+#include <gui/common/RSItemDelegate.h>
+
+class RSElidedItemDelegate : public RSItemDelegate
+{
+	Q_OBJECT
+	Q_PROPERTY(bool isElided READ isElided)
+	Q_PROPERTY(bool isOnlyPlainText READ isOnlyPlainText WRITE setOnlyPlainText)
+	Q_PROPERTY(QRect rectElision READ rectElision)
+
+public:
+	RSElidedItemDelegate(QObject *parent = 0);
+
+	void paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+
+	bool isElided() const { return mElided; }
+	bool isOnlyPlainText() const { return mOnlyPlainText; }
+	void setOnlyPlainText(const bool &value) { mOnlyPlainText = value; }
+	QRect rectElision() { return mRectElision; }
+
+protected:
+	void drawDisplay(QPainter *painter, const QStyleOptionViewItem &option,
+	                         const QRect &rect, const QString &text) const;
+	bool editorEvent(QEvent *event,
+	                 QAbstractItemModel *model,
+	                 const QStyleOptionViewItem &option,
+	                 const QModelIndex &index);
+
+private:
+	mutable bool mElided;
+	bool mOnlyPlainText;
+	mutable QString mContent;
+	mutable QRect mRectElision;
+
+};
+
+#endif // RSELIDEDITEMDELEGATE_H

retroshare-gui/src/gui/common/RSItemDelegate.h

@@ -35,7 +35,7 @@ public:
 
     void removeFocusRect(int column);
     void setSpacing(const QSize &spacing);
-
+    QSize spacing() const { return m_spacing; }
 private:
     QList<int> m_noFocusRect;
     QSize m_spacing;

retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.cpp

@@ -30,7 +30,7 @@
 #include "GxsForumsDialog.h"
 #include "gui/RetroShareLink.h"
 #include "gui/common/RSTreeWidgetItem.h"
-#include "gui/common/RSItemDelegate.h"
+#include "gui/common/RSElidedItemDelegate.h"
 #include "gui/settings/rsharesettings.h"
 #include "gui/gxs/GxsIdTreeWidgetItem.h"
 #include "gui/gxs/GxsIdDetails.h"
@@ -161,7 +161,7 @@ GxsForumThreadWidget::GxsForumThreadWidget(const RsGxsGroupId &forumId, QWidget
 	connect(ui->actionSave_image, SIGNAL(triggered()), this, SLOT(saveImage()));
 
 	/* Set own item delegate */
-	RSItemDelegate *itemDelegate = new RSItemDelegate(this);
+	RSElidedItemDelegate *itemDelegate = new RSElidedItemDelegate(this);
 	itemDelegate->setSpacing(QSize(0, 2));
 	ui->threadTreeWidget->setItemDelegate(itemDelegate);
 
@@ -208,8 +208,8 @@ GxsForumThreadWidget::GxsForumThreadWidget(const RsGxsGroupId &forumId, QWidget
     ui->postText->clear();
     ui->by_label->setId(RsGxsId());
     ui->time_label->clear() ;
-    ui->line->hide() ;
-    ui->line_2->hide() ;
+    ui->lineRight->hide() ;
+    ui->lineLeft->hide() ;
     ui->by_text_label->hide() ;
     ui->by_label->hide() ;
     ui->postText->setImageBlockWidget(ui->imageBlockWidget);
@@ -963,7 +963,8 @@ void GxsForumThreadWidget::fillThreadProgress(int current, int count)
 {
 	// show fill progress
 	if (count) {
-		ui->progressBar->setValue(current * ui->progressBar->maximum() / count);
+		int max = ui->progressBar->maximum();
+		ui->progressBar->setValue(current * max / count);
 	}
 }
 
@@ -1380,8 +1381,8 @@ void GxsForumThreadWidget::insertMessage()
 	ui->postText->clear();
     ui->by_label->setId(RsGxsId());
     ui->time_label->clear() ;
-    ui->line->hide() ;
-    ui->line_2->hide() ;
+    ui->lineRight->hide() ;
+    ui->lineLeft->hide() ;
     ui->by_text_label->hide() ;
     ui->by_label->hide() ;
 
@@ -1442,8 +1443,8 @@ void GxsForumThreadWidget::insertMessageData(const RsGxsForumMsg &msg)
 	ui->time_label->setText(DateTime::formatLongDateTime(msg.mMeta.mPublishTs));
     ui->by_label->setId(msg.mMeta.mAuthorId) ;
 
-    ui->line->show() ;
-    ui->line_2->show() ;
+    ui->lineRight->show() ;
+    ui->lineLeft->show() ;
     ui->by_text_label->show() ;
     ui->by_label->show() ;
 

retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.ui

@@ -13,7 +13,7 @@
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout_3">
+  <layout class="QVBoxLayout" name="GxsForumThreadWidgetVLayout">
    <property name="leftMargin">
     <number>0</number>
    </property>
@@ -31,8 +31,8 @@
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>
-     <widget class="QWidget" name="layoutWidget">
-      <layout class="QVBoxLayout" name="verticalLayout_2">
+     <widget class="QWidget" name="topWidget">
+      <layout class="QVBoxLayout" name="topVLayout">
        <item>
         <widget class="QFrame" name="toolBarFrame">
          <property name="minimumSize">
@@ -47,7 +47,7 @@
          <property name="frameShadow">
           <enum>QFrame::Sunken</enum>
          </property>
-         <layout class="QHBoxLayout" name="horizontalLayout_3">
+         <layout class="QHBoxLayout" name="toolBarFrameHLayout">
           <property name="leftMargin">
            <number>2</number>
           </property>
@@ -128,7 +128,7 @@
            </widget>
           </item>
           <item>
-           <spacer name="horizontalSpacer">
+           <spacer name="toolBarHSpacer">
             <property name="orientation">
              <enum>Qt::Horizontal</enum>
             </property>
@@ -347,21 +347,21 @@
           </widget>
          </item>
          <item row="0" column="6">
-          <widget class="Line" name="line_2">
+          <widget class="Line" name="lineLeft">
            <property name="orientation">
             <enum>Qt::Vertical</enum>
            </property>
           </widget>
          </item>
          <item row="0" column="8">
-          <widget class="Line" name="line">
+          <widget class="Line" name="lineRight">
            <property name="orientation">
             <enum>Qt::Vertical</enum>
            </property>
           </widget>
          </item>
          <item row="0" column="11">
-          <spacer name="horizontalSpacer_2">
+          <spacer name="postHSpacer">
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
            </property>
@@ -470,8 +470,8 @@
        </item>
       </layout>
      </widget>
-     <widget class="QWidget" name="layoutWidget">
-      <layout class="QVBoxLayout" name="verticalLayout">
+     <widget class="QWidget" name="bottomWidget">
+      <layout class="QVBoxLayout" name="bottomVLayout">
        <item>
         <widget class="RSImageBlockWidget" name="imageBlockWidget" native="true">
          <property name="sizePolicy">

retroshare-gui/src/retroshare-gui.pro

@@ -492,6 +492,7 @@ HEADERS +=  rshare.h \
             gui/common/RSTreeWidgetItem.h \
             gui/common/RSFeedWidget.h \
             gui/common/RSTabWidget.h \
+            gui/common/RSElidedItemDelegate.h \
             gui/common/RSItemDelegate.h \
             gui/common/PeerDefs.h \
             gui/common/FilesDefs.h \
@@ -801,6 +802,7 @@ SOURCES +=  main.cpp \
             gui/common/RSTreeWidgetItem.cpp \
             gui/common/RSFeedWidget.cpp \
             gui/common/RSTabWidget.cpp \
+            gui/common/RSElidedItemDelegate.cpp \
             gui/common/RSItemDelegate.cpp \
             gui/common/PeerDefs.cpp \
             gui/common/FilesDefs.cpp \