[Add] Cut/Copy/Paste.

[Add] Finalized Drag&Drop
[Change] Resize after Drag&Drop

src/pdf_file_widget.cpp

@@ -2,6 +2,7 @@
 #include <QtGlobal>
 #include "pdf_file_widget.h"
 #include "pdf_page_widget.h"
+#include "pdf_table_widget.h"
 
 #define COLLAPSE_BUTTON_WIDTH   32
 #define COLLAPSE_BUTTON_HEIGHT  32
@@ -39,8 +40,8 @@ void PagesContainerWidget::dragEnterEvent(QDragEnterEvent* event) {
 
 void PagesContainerWidget::dropEvent(QDropEvent* event) {
   QPoint pos = event->pos();
-  qDebug() << "FILE DROP";
+  int page = (pos.x() / (CHILD_AREA_SIDE_MARGIN + CHILD_AREA_WIDTH));
-  qDebug() << (pos.x() / (CHILD_AREA_SIDE_MARGIN + CHILD_AREA_WIDTH));
+  ((PDFTableWidget*)ancestor)->moveSelectedPages(event->mimeData()->text(), pageWidgets.at(page));
   event->acceptProposedAction();
 }
 
@@ -86,6 +87,7 @@ PDFFileWidget::PDFFileWidget(QWidget* parent) :QFrame(parent) {
 
 void PDFFileWidget::setAncestor(QWidget* ancestor) {
   this->ancestor = ancestor;
+  pagesContainerWidget->setAncestor(ancestor);
   connect(this, SIGNAL(fileClicked(PDFFileWidget*, QMouseEvent*)), ancestor,
           SLOT(fileClicked(PDFFileWidget*, QMouseEvent*)));
 }
@@ -165,12 +167,19 @@ int PDFFileWidget::removeChild(PDFPageWidget* child) {
   pagesContainerWidget->pageWidgets.remove(pos);
   pagesContainerWidget->mainLayout->removeItem(pagesContainerWidget->mainLayout->itemAt(pos));
 
+  pagesContainerWidget->adjustSize();
   return pos;
 }
 
+int PDFFileWidget::indexChild(PDFPageWidget* child) {
+  return pagesContainerWidget->pageWidgets.indexOf(child);
+}
+
 void PDFFileWidget::insertChildAt(PDFPageWidget* child, int pos) {
   child->setFather(this);
   pagesContainerWidget->mainLayout->insertWidget(pos, child);
   pagesContainerWidget->pageWidgets.insert(pos, child);
+
+  pagesContainerWidget->adjustSize();
 }
 

src/pdf_file_widget.h

@@ -30,6 +30,7 @@ public:
   QHBoxLayout*            mainLayout;
 
   void addPageWidget(PDFPageWidget* image);
+  void setAncestor(QWidget* ancestor) {this->ancestor = ancestor; }
 
 protected:
   void dragEnterEvent(QDragEnterEvent* event);
@@ -37,6 +38,7 @@ protected:
 
 private:
   int getPagesCount() const;
+  QWidget* ancestor;
 };
 
 class PDFFileWidget : public QFrame {
@@ -49,6 +51,7 @@ public:
   void  setAncestor(QWidget* ancestor);
   void  setDocument(Poppler::Document* document, QString fileName);
   int   removeChild(PDFPageWidget* child);
+  int   indexChild(PDFPageWidget* child);
   void  insertChildAt(PDFPageWidget* child, int pos);
 
   void setSelected(bool select);

src/pdf_jam.cpp

@@ -54,8 +54,49 @@ bool PDFJam::removePage(int fileIndex, int numPages, int deletedPageIndex) {
   pushCommand(cmd);
 }
 
-void PDFJam::movePage(int fromFileIndex, int fromPageIndex, int toFileIndex, int toPageIndex) {
+void PDFJam::cutPage(int fileIndex, int numPages, int pageIndex) {
+  if((pageIndex < 0) || (pageIndex >= numPages)) {
+    return;
+  }
 
+  copyPage(fileIndex, numPages, pageIndex);
+  removePage(fileIndex, numPages, pageIndex);
+}
+
+void PDFJam::copyPage(int fileIndex, int numPages, int pageIndex) {
+  QString cpTmp = "cp /tmp/hpdf/%1%2.pdf /tmp/hpdf/clipboard.pdf ";
+  QString cmd   = cpTmp.arg(QString::number(fileIndex)).arg(QString::number(pageIndex));
+  pushCommand(cmd);
+}
+
+void PDFJam::pastePage(int fileIndex, int numPages, int pageIndex) {
+  /* TODO: Check if the clipboard file exists. */
+  QString cmd   = "";
+  QString mvTmp = "mv /tmp/hpdf/%1/%2.pdf /tmp/hpdf/%3/%4.pdf ";
+  for(int i = numPages-1; i >= pageIndex; i--) {
+    cmd += mvTmp.arg(QString::number(fileIndex)).arg(QString::number(i))
+                    .arg(QString::number(fileIndex)).arg(QString::number(i+1));
+    if(i > pageIndex) cmd += " && ";
+  }
+
+  QString pasteTmp = "cp /tmp/hpdf/clipboard.pdf /tmp/hpdf/%1/%2.pdf ";
+  cmd += " && " + pasteTmp.arg(QString::number(fileIndex)).arg(QString::number(pageIndex));
+  pushCommand(cmd);
+}
+
+void PDFJam::movePage(int fromFileIndex, int fromFileNumPage, int fromPageIndex,
+      int toFileIndex, int toFileNumPage, int toPageIndex) {
+  /* TODO: Back up clipboard. */
+  /* If this page is moving with files update to file index. */
+  if(toFileIndex == fromFileIndex) {
+    toFileNumPage--;
+    if(toPageIndex > fromPageIndex)
+      toPageIndex--;
+    toPageIndex--;
+  }
+
+  cutPage(fromFileIndex, fromFileNumPage, fromPageIndex);
+  pastePage(toFileIndex, toFileNumPage, toPageIndex);
 }
 
 void PDFJam::savePageAsImage(Poppler::Page pp, QString dst, double dpi = 72) {
@@ -109,9 +150,10 @@ void PDFJam::loadFile(QString fileName, int fileIndex, Poppler::Document* pd) {
   pushCommand(cmd);
 
   /* Test the backend functions. */
-  /*removePage(0, numPages, 5);
   rotatePage(0, 5, 270);
-  exportFile(0, numPages-1, "/home/allanis/conco.pdf", QSize(2, 2), true, true, 1, 0);*/
+  movePage(0, numPages, 5, 0, numPages, 10);
+  /*removePage(0, numPages, 5);*/
+  exportFile(0, numPages, "/home/allanis/conco.pdf", QSize(2, 2), true, true, 1, 0);
   /* End test. */
 }
 

src/pdf_jam.h

@@ -16,7 +16,10 @@ public:
   void loadFile(QString fileName, int, Poppler::Document*);
   void exportFile(int, int, QString, QSize, bool, bool, int, int);
   void savePageAsImage(Poppler::Page pp, QString dst, double);
-  void movePage(int fromFileIndex, int fromPageIndex, int toFileIndex, int toPageIndex);
+  void movePage(int, int, int, int, int, int);
+  void pastePage(int, int, int);
+  void copyPage(int, int, int);
+  void cutPage(int, int, int);
   
   bool removePage(int, int, int);
   bool rotatePage(int, int, int);

src/pdf_page_widget.h

@@ -21,8 +21,9 @@ public:
   void setPopplerPage(Poppler::Page*);
   void setAncestor(QWidget* ancestor);
   void setFather(QWidget* father);
-  QWidget* getFather() { return father; }
+  QWidget* getFather(void) const { return father; }
   void registerName(QString name) { path = name; }
+  QString getName(void) { return path; }
 
   void setSelected(bool select);
   bool isSelected(void) { return selected; }

src/pdf_table_widget.cpp

@@ -1,4 +1,5 @@
 #include <QtWidgets>
+#include <QtAlgorithms>
 #include "pdf_table_widget.h"
 #include "pdf_page_widget.h"
 #include "pdf_file_widget.h"
@@ -106,61 +107,97 @@ void PDFTableWidget::fileRemoveButtonClicked(PDFFileWidget* sender) {
 void PDFTableWidget::pageClicked(PDFPageWidget* sender, QMouseEvent* event, QString path) {
   if(event->button() == Qt::LeftButton) {
     /* Handle selection. */
-    if(event->modifiers() != Qt::ControlModifier) {
+    if(selectedPages.size() > 0 && event->modifiers() != Qt::ControlModifier) {
-      for(int i = 0; i < selectedPages.size(); i++) {
+      /* Handle Drag. */
-        selectedPages.at(i)->setSelected(false);
-      }
-
-      selectedPages.clear();
-
-      if(!sender->isSelected()) {
-        sender->setSelected(true);
-        selectedPages.append(sender);
-      }
-    } else {
-      if(!sender->isSelected()) {
-        sender->setSelected(true);
-        selectedPages.append(sender);
-      } else {
-        sender->setSelected(false);
-        selectedPages.remove(selectedPages.indexOf(sender));
-      }
-    }
-
-    /* Handle drag. */
       QDrag* drag = new QDrag(this);
-    QMimeData*  mimeData  = new QMimeData();
+      QMimeData* mimeData = new QMimeData;
 
       mimeData->setText(path);
       drag->setMimeData(mimeData);
       drag->setPixmap(QPixmap(":/img/copy.png"));
 
       drag->exec();
+    } else {
+      if(!sender->isSelected()) {
+        sender->setSelected(true);
+        PDFFileWidget* senderF = (PDFFileWidget*)sender->getFather();
+        int senderPID = senderF->indexChild(sender);
+        int senderFID = fileWidgets.indexOf(senderF);
+
+        int i = 0;
+        for(i = 0; i < selectedPages.size(); i++) {
+          PDFPageWidget* target   = selectedPages.at(i);
+          PDFFileWidget* targetF  = (PDFFileWidget*)target->getFather();
+          int targetPID = targetF->indexChild(target);
+          int targetFID = fileWidgets.indexOf(targetF);
+
+          if(targetFID == senderFID && targetFID > senderFID)
+            break;
+
+          if(targetFID > senderFID)
+            break;
+        }
+
+        selectedPages.insert(i, sender);
+      } else {
+        sender->setSelected(false);
+        selectedPages.remove(selectedPages.indexOf(sender));
+      }
+    }
+  }
+  if(event->button() == Qt::RightButton) {
+    for(int i = 0; i < selectedPages.size(); i++) {
+      selectedPages.at(i)->setSelected(false);
+    }
+
+    selectedPages.clear();
   }
 }
 
 void PDFTableWidget::pageDropped(PDFPageWidget* sender, QDropEvent* event,
       QString pathFrom, QString pathTo) {
-  /*
-   * We have dragged the page and dropped it.
-   * So we'll handle backend operations here.
-   */
   
-  /* Frontend operations here.. */
+  moveSelectedPages(pathFrom, pathTo);
-  if(pathFrom == pathTo)
+}
-    return;
+
-  qDebug() << pathFrom;
+void PDFTableWidget::moveSelectedPages(QString pathFrom, PDFPageWidget* page)  {
-  qDebug() << pathTo;
+  moveSelectedPages(pathFrom, page->getName());
-  PDFPageWidget* childFrom  = pageChilds[pathFrom];
+}
-  PDFPageWidget* childTo    = pageChilds[pathTo];
+
-
+void PDFTableWidget::moveSelectedPages(QString pathFrom, QString pathTo) {
-  PDFFileWidget* fileFrom   = (PDFFileWidget*) childFrom->getFather();
+  if(selectedPages.size() == 0)
-  PDFFileWidget* fileTo     = (PDFFileWidget*) childTo->getFather();
+    return;
-
+
-  int posFrom               = fileFrom->removeChild(childFrom);
+  bool accept = false;
-  int posTo                 = fileTo->removeChild(childTo);
+  for(int i = 0; i < selectedPages.size(); i++)
-
+    if(selectedPages.at(i)->getName() == pathFrom)
-  fileTo->insertChildAt(childFrom, posTo);
+      accept = true;
-  fileFrom->insertChildAt(childTo, posFrom);
+
+  if(!accept)
+    return;
+
+  for(int i = 0; i < selectedPages.size(); i++)
+    if(selectedPages.at(i)->getName() == pathTo)
+      return;
+
+  PDFPageWidget* childTo = pageChilds[pathTo];
+  PDFFileWidget* fileTo  = (PDFFileWidget*) childTo->getFather();
+
+  for(int i = selectedPages.size() - 1; i >= 0; i--) {
+    PDFPageWidget* childFrom = selectedPages[i];
+    PDFFileWidget* fileFrom  = (PDFFileWidget*) childFrom->getFather();
+    fileFrom->removeChild(childFrom);
+    /*PDFFileWidget* fileFrom = (PDFFileWidget*) childFrom->getFather();*/
+
+    /*int posFrom = fileFrom->removeChild(childFrom);*/
+  }
+  int posTo = fileTo->indexChild(childTo);
+
+  for(int i = selectedPages.size() - 1; i >= 0; i--) {
+    PDFPageWidget* childFrom = selectedPages[i];
+    PDFFileWidget* fileFrom  = (PDFFileWidget*)childFrom->getFather();
+    fileTo->insertChildAt(childFrom, posTo);
+    /*fileFrom->insertChildAt(childTo, posFrom);*/
+  }
 }
 

src/pdf_table_widget.h

@@ -50,5 +50,10 @@ private slots:
 private:
   QVector<PDFPageWidget*> selectedPages;
   QVector<PDFFileWidget*> selectedFiles;
+
+  /*bool operator()(PDFPageWidget* e1, PDFPageWidget* e2);*/
+public:
+  void moveSelectedPages(QString, QString);
+  void moveSelectedPages(QString, PDFPageWidget* page);
 };