improved replace media and made it undoable

project/clip.cpp

@@ -26,6 +26,7 @@ Clip::Clip(Sequence* s) :
     opening_transition(NULL),
     closing_transition(NULL),
     pkt(new AVPacket()),
+	replaced(false),
     texture(NULL)
 {
     reset();
@@ -106,6 +107,13 @@ void Clip::reset_audio() {
 }
 
 void Clip::refresh() {
+	// validates media if it was replaced
+	if (replaced && media_type == MEDIA_TYPE_FOOTAGE) {
+		Media* m = static_cast<Media*>(media);
+		media_stream = (track < 0) ? m->video_tracks.at(0)->file_index : m->audio_tracks.at(0)->file_index;
+	}
+	replaced = false;
+
     // reinitializes all effects... just in case
     for (int i=0;i<effects.size();i++) {
         effects.at(i)->init();

project/clip.h

@@ -82,6 +82,7 @@ struct Clip
     bool reached_end;
     bool open;
     bool finished_opening;
+	bool replaced;
 
     // caching functions
     bool multithreaded;

project/undo.cpp

@@ -13,6 +13,8 @@
 #include "playback/playback.h"
 #include "ui/sourcetable.h"
 #include "effects/effects.h"
+#include "io/media.h"
+#include "playback/cacher.h"
 
 QUndoStack undo_stack;
 
@@ -506,3 +508,45 @@ void CheckboxCommand::redo() {
         box->setChecked(checked);
     }
 }
+
+ReplaceMediaCommand::ReplaceMediaCommand(QTreeWidgetItem* i, QString s) :
+	item(i),
+	new_filename(s),
+	old_project_changed(project_changed)
+{
+	media = get_footage_from_tree(item);
+	old_filename = media->url;
+}
+
+void ReplaceMediaCommand::replace(QString& filename) {
+	// close any clips currently using this media
+	QVector<Sequence*> all_sequences = panel_project->list_all_project_sequences();
+	for (int i=0;i<all_sequences.size();i++) {
+		Sequence* s = all_sequences.at(i);
+		for (int j=0;j<s->clip_count();j++) {
+			Clip* c = s->get_clip(j);
+			if (c != NULL && c->media == media && c->open) {
+				close_clip(c);
+				c->cacher->wait();
+				c->replaced = true;
+			}
+		}
+	}
+
+	// replace media
+	QStringList files;
+	files.append(filename);
+	panel_project->process_file_list(false, files, NULL, item);
+}
+
+void ReplaceMediaCommand::undo() {
+	replace(old_filename);
+
+	project_changed = old_project_changed;
+}
+
+void ReplaceMediaCommand::redo() {
+	replace(new_filename);
+
+	project_changed = true;
+}

project/undo.h

@@ -5,6 +5,7 @@ class QTreeWidgetItem;
 class QCheckBox;
 struct Clip;
 struct Sequence;
+struct Media;
 
 #include <QUndoStack>
 #include <QUndoCommand>
@@ -115,4 +116,18 @@ private:
     bool done;
 };
 
+class ReplaceMediaCommand : public QUndoCommand {
+public:
+	ReplaceMediaCommand(QTreeWidgetItem*, QString);
+	void undo();
+	void redo();
+private:
+	QTreeWidgetItem *item;
+	QString old_filename;
+	QString new_filename;
+	bool old_project_changed;
+	Media* media;
+	void replace(QString& filename);
+};
+
 #endif // UNDO_H