many changes, mostly to export

effects/effects.cpp

@@ -1,6 +1,9 @@
 #include "effects/effects.h"
 
+#include "project/clip.h"
+
 #include <QVector>
+#include <QDebug>
 
 QVector<QString> video_effect_names;
 QVector<QString> audio_effect_names;
@@ -14,3 +17,18 @@ void init_effects() {
 	audio_effect_names[AUDIO_VOLUME_EFFECT] = "Volume";
 	audio_effect_names[AUDIO_PAN_EFFECT] = "Pan";
 }
+
+Effect* create_effect(int effect_id, Clip* c) {
+    if (c->track < 0) {
+        switch (effect_id) {
+        case VIDEO_TRANSFORM_EFFECT: return new TransformEffect(c);
+        }
+    } else {
+        switch (effect_id) {
+        case AUDIO_VOLUME_EFFECT: return new VolumeEffect(c);
+        case AUDIO_PAN_EFFECT: return new PanEffect(c);
+        }
+    }
+    qDebug() << "[ERROR] Invalid effect ID";
+    return NULL;
+}

effects/effects.h

@@ -20,14 +20,16 @@ enum AudioEffects {
 extern QVector<QString> video_effect_names;
 extern QVector<QString> audio_effect_names;
 void init_effects();
+Effect* create_effect(int effect_id, Clip* c);
 
 // video effects
 class TransformEffect : public Effect {
 	Q_OBJECT
 public:
-	TransformEffect(Clip* c);
+    TransformEffect(Clip* c);
 	void process_gl(int* anchor_x, int* anchor_y);
-private:
+    Effect* copy();
+
 	QSpinBox* position_x;
 	QSpinBox* position_y;
 	QSpinBox* scale_x;
@@ -44,17 +46,19 @@ public slots:
 // audio effects
 class VolumeEffect : public Effect {
 public:
-	VolumeEffect(Clip* c);
-	void process_audio(uint8_t* samples, int nb_bytes);
-private:
+    VolumeEffect(Clip* c);
+    void process_audio(uint8_t* samples, int nb_bytes);
+    Effect* copy();
+
 	QSpinBox* volume_val;
 };
 
 class PanEffect : public Effect {
 public:
-	PanEffect(Clip* c);
-	void process_audio(uint8_t* samples, int nb_bytes);
-private:
+    PanEffect(Clip* c);
+    void process_audio(uint8_t* samples, int nb_bytes);
+    Effect* copy();
+
 	QSpinBox* pan_val;
 };
 

effects/paneffect.cpp

@@ -28,6 +28,12 @@ PanEffect::PanEffect(Clip* c) : Effect(c) {
 	pan_val->setValue(0);
 }
 
+Effect* PanEffect::copy() {
+    PanEffect* p = new PanEffect(parent_clip);
+    p->pan_val->setValue(pan_val->value());
+    return p;
+}
+
 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

@@ -72,8 +72,8 @@ TransformEffect::TransformEffect(Clip* c) : Effect(c) {
 	container->setContents(ui);
 
 	// set defaults
-	position_x->setValue(c->sequence->width/2);
-	position_y->setValue(c->sequence->height/2);
+    position_x->setValue(c->sequence->width/2);
+    position_y->setValue(c->sequence->height/2);
 	scale_x->setValue(100);
 	scale_y->setValue(100);
 	scale_y->setEnabled(false);
@@ -94,6 +94,20 @@ TransformEffect::TransformEffect(Clip* c) : Effect(c) {
 	connect(uniform_scale_box, SIGNAL(toggled(bool)), this, SLOT(field_changed()));
 }
 
+Effect* TransformEffect::copy() {
+    TransformEffect* t = new TransformEffect(parent_clip);
+    t->position_x->setValue(position_x->value());
+    t->position_y->setValue(position_y->value());
+    t->scale_x->setValue(scale_x->value());
+    t->scale_y->setValue(scale_y->value());
+    t->uniform_scale_box->setChecked(uniform_scale_box->isChecked());
+    t->rotation->setValue(rotation->value());
+    t->anchor_x_box->setValue(anchor_x_box->value());
+    t->anchor_y_box->setValue(anchor_y_box->value());
+    t->opacity->setValue(opacity->value());
+    return t;
+}
+
 void TransformEffect::toggle_uniform_scale(bool enabled) {
 	scale_y->setEnabled(!enabled);
 }

effects/volumeeffect.cpp

@@ -28,6 +28,12 @@ VolumeEffect::VolumeEffect(Clip* c) : Effect(c) {
 	volume_val->setValue(100);
 }
 
+Effect* VolumeEffect::copy() {
+    VolumeEffect* v = new VolumeEffect(parent_clip);
+    v->volume_val->setValue(volume_val->value());
+    return v;
+}
+
 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]);