basic save support added

effects/effects.h

@@ -3,6 +3,7 @@
 
 #include "project/effect.h"
 
+#include <QXmlStreamWriter>
 class QSpinBox;
 class QCheckBox;
 
@@ -52,6 +53,7 @@ public:
     VolumeEffect(Clip* c);
     void process_audio(uint8_t* samples, int nb_bytes);
     Effect* copy();
+    void save(QXmlStreamWriter* stream);
 
 	QSpinBox* volume_val;
 };
@@ -61,6 +63,7 @@ public:
     PanEffect(Clip* c);
     void process_audio(uint8_t* samples, int nb_bytes);
     Effect* copy();
+    void save(QXmlStreamWriter* stream);
 
 	QSpinBox* pan_val;
 };

effects/paneffect.cpp

@@ -7,12 +7,9 @@
 #include "ui/collapsiblewidget.h"
 
 PanEffect::PanEffect(Clip* c) : Effect(c) {
-	container = new CollapsibleWidget();
-	container->setText(audio_effect_names[AUDIO_PAN_EFFECT]);
+    setup_effect(EFFECT_TYPE_AUDIO, AUDIO_PAN_EFFECT);
 
-	ui = new QWidget();
-
-	QGridLayout* ui_layout = new QGridLayout();
+    QGridLayout* ui_layout = new QGridLayout();
 
 	ui_layout->addWidget(new QLabel("Pan:"), 0, 0);
 	pan_val = new QSpinBox();
@@ -34,6 +31,10 @@ Effect* PanEffect::copy() {
     return p;
 }
 
+void PanEffect::save(QXmlStreamWriter *stream) {
+    stream->writeTextElement("pan", QString::number(pan_val->value()));
+}
+
 void PanEffect::process_audio(uint8_t *samples, int nb_bytes) {
 	for (int i=0;i<nb_bytes;i+=4) {
 		int16_t left_sample = (int16_t) ((samples[i+1] << 8) | samples[i]);

effects/transformeffect.cpp

@@ -14,10 +14,7 @@
 #include "io/media.h"
 
 TransformEffect::TransformEffect(Clip* c) : Effect(c) {
-	container = new CollapsibleWidget();
-	container->setText(video_effect_names[VIDEO_TRANSFORM_EFFECT]);
-
-	ui = new QWidget();
+    setup_effect(EFFECT_TYPE_VIDEO, VIDEO_TRANSFORM_EFFECT);
 
 	QGridLayout* ui_layout = new QGridLayout();
 

effects/volumeeffect.cpp

@@ -7,10 +7,7 @@
 #include "ui/collapsiblewidget.h"
 
 VolumeEffect::VolumeEffect(Clip* c) : Effect(c) {
-	container = new CollapsibleWidget();
-	container->setText(audio_effect_names[AUDIO_VOLUME_EFFECT]);
-
-	ui = new QWidget();
+    setup_effect(EFFECT_TYPE_AUDIO, AUDIO_VOLUME_EFFECT);
 
 	QGridLayout* ui_layout = new QGridLayout();
 
@@ -34,6 +31,10 @@ Effect* VolumeEffect::copy() {
     return v;
 }
 
+void VolumeEffect::save(QXmlStreamWriter *stream) {
+    stream->writeTextElement("volume", QString::number(volume_val->value()));
+}
+
 void VolumeEffect::process_audio(uint8_t *samples, int nb_bytes) {
 	for (int i=0;i<nb_bytes;i+=2) {
 		int16_t full_sample = (int16_t) ((samples[i+1] << 8) | samples[i]);