From 024f6df9de3780f6a3185a565d4a0adc684b4bbe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20=C3=81ngel=20San=20Mart=C3=ADn?=
 <luisangelsm@gmail.com>
Date: Sun, 13 Aug 2023 11:15:47 +0200
Subject: [PATCH] Add methods to the flow implementations to add new items
 dynamically

---
 common/gl/yacreader_flow_gl.cpp | 34 ++++++++++++++++++++++++++++++++-
 common/gl/yacreader_flow_gl.h   |  3 +++
 common/pictureflow.cpp          |  7 +++++++
 common/pictureflow.h            |  7 ++++++-
 4 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/common/gl/yacreader_flow_gl.cpp b/common/gl/yacreader_flow_gl.cpp
index a5f8aa72..b75cf0b8 100644
--- a/common/gl/yacreader_flow_gl.cpp
+++ b/common/gl/yacreader_flow_gl.cpp
@@ -724,6 +724,24 @@ void YACReaderFlowGL::remove(int item)
     numObjects--;
 }
 
+void YACReaderFlowGL::add(int item)
+{
+    float x = 1;
+    float y = 1 * (700.f / 480.0f);
+    QString s = "cover";
+
+    images.insert(item, YACReader3DImage());
+    loaded.insert(item, false);
+    marks.insert(item, Unread);
+    numObjects++;
+
+    for (int i = item + 1; i < numObjects; i++) {
+        images[i].index++;
+    }
+
+    insert(s.toLocal8Bit().data(), defaultTexture, x, y, item);
+}
+
 /*Info*/
 YACReader3DImage YACReaderFlowGL::getCurrentSelected()
 {
@@ -747,6 +765,7 @@ void YACReaderFlowGL::replace(char *name, QOpenGLTexture *texture, float x, floa
 void YACReaderFlowGL::populate(int n)
 {
     emit centerIndexChanged(0);
+
     float x = 1;
     float y = 1 * (700.f / 480.0f);
     int i;
@@ -1218,8 +1237,21 @@ void YACReaderComicFlowGL::remove(int item)
     worker->lock();
     worker->reset();
     YACReaderFlowGL::remove(item);
-    if (item >= 0 && item < paths.size())
+    if (item >= 0 && item < paths.size()) {
         paths.removeAt(item);
+    }
+    worker->unlock();
+}
+
+void YACReaderComicFlowGL::add(const QString &path, int index)
+{
+    worker->lock();
+    worker->reset();
+
+    paths.insert(index, path);
+
+    YACReaderFlowGL::add(index);
+
     worker->unlock();
 }
 
diff --git a/common/gl/yacreader_flow_gl.h b/common/gl/yacreader_flow_gl.h
index e594c4f4..b40ea412 100644
--- a/common/gl/yacreader_flow_gl.h
+++ b/common/gl/yacreader_flow_gl.h
@@ -207,6 +207,8 @@ public:
     void insert(char *name, QOpenGLTexture *texture, float x, float y, int item = -1);
     // removes a item
     virtual void remove(int item);
+    // inserts a default texture into `item` and set is as pending to load
+    void add(int item);
     // replaces the texture of the item 'item' with Tex
     void replace(char *name, QOpenGLTexture *texture, float x, float y, int item);
     // create n covers with the default nu
@@ -295,6 +297,7 @@ public:
     void setImagePaths(QStringList paths);
     void updateImageData();
     void remove(int item);
+    void add(const QString &path, int index);
     void resortCovers(QList<int> newOrder);
     friend class ImageLoaderGL;
 
diff --git a/common/pictureflow.cpp b/common/pictureflow.cpp
index 4e552a50..323db42f 100644
--- a/common/pictureflow.cpp
+++ b/common/pictureflow.cpp
@@ -1084,6 +1084,13 @@ void PictureFlow::addSlide(const QPixmap &pixmap)
     addSlide(pixmap.toImage());
 }
 
+void PictureFlow::insertSlide(int index)
+{
+    d->state->slideImages.insert(index, new QImage());
+    d->state->marks.insert(index, YACReader::Unread);
+    triggerRender();
+}
+
 void PictureFlow::removeSlide(int index)
 {
     int c = d->state->slideImages.count();
diff --git a/common/pictureflow.h b/common/pictureflow.h
index d7d6ea05..e1d9c68d 100644
--- a/common/pictureflow.h
+++ b/common/pictureflow.h
@@ -133,7 +133,12 @@ public slots:
     void addSlide(const QPixmap &pixmap);
 
     /*!
-  Removes an existing slide.
+    Insert and empty slide at index.
+  */
+    void insertSlide(int index);
+
+    /*!
+    Removes an existing slide.
   */
     void removeSlide(int index);