From 660b1d75477dbd82e689bbe97fb6e5ad9789a860 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Mon, 12 Nov 2018 10:02:00 +1100
Subject: [PATCH] added corner pin effect

---
 effects/internal/cornerpineffect.cpp | 39 ++++++++++++++++++++++++++++
 effects/internal/cornerpineffect.h   | 22 ++++++++++++++++
 olive.pro                            |  6 +++--
 3 files changed, 65 insertions(+), 2 deletions(-)
 create mode 100644 effects/internal/cornerpineffect.cpp
 create mode 100644 effects/internal/cornerpineffect.h

diff --git a/effects/internal/cornerpineffect.cpp b/effects/internal/cornerpineffect.cpp
new file mode 100644
index 000000000..6c87fb0a8
--- /dev/null
+++ b/effects/internal/cornerpineffect.cpp
@@ -0,0 +1,39 @@
+#include "cornerpineffect.h"
+
+CornerPinEffect::CornerPinEffect(Clip *c, const EffectMeta *em) : Effect(c, em) {
+    enable_coords = true;
+
+    EffectRow* top_left = add_row("Top Left:");
+    top_left_x = top_left->add_field(EFFECT_FIELD_DOUBLE);
+    top_left_y = top_left->add_field(EFFECT_FIELD_DOUBLE);
+
+    EffectRow* top_right = add_row("Top Right:");
+    top_right_x = top_right->add_field(EFFECT_FIELD_DOUBLE);
+    top_right_y = top_right->add_field(EFFECT_FIELD_DOUBLE);
+
+    EffectRow* bottom_left = add_row("Bottom Left:");
+    bottom_left_x = bottom_left->add_field(EFFECT_FIELD_DOUBLE);
+    bottom_left_y = bottom_left->add_field(EFFECT_FIELD_DOUBLE);
+
+    EffectRow* bottom_right = add_row("Bottom Right:");
+    bottom_right_x = bottom_right->add_field(EFFECT_FIELD_DOUBLE);
+    bottom_right_y = bottom_right->add_field(EFFECT_FIELD_DOUBLE);
+
+    connect(intensity_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(rotation_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(frequency_val, SIGNAL(changed()), this, SLOT(field_changed()));
+}
+
+void CornerPinEffect::process_coords(double timecode, GLTextureCoords &coords) {
+    coords.vertexTopLeftX += top_left_x->get_double_value(timecode);
+    coords.vertexTopLeftY += top_left_y->get_double_value(timecode);
+
+    coords.vertexTopRightX += top_right_x->get_double_value(timecode);
+    coords.vertexTopRightY += top_right_y->get_double_value(timecode);
+
+    coords.vertexBottomLeftX += bottom_left_x->get_double_value(timecode);
+    coords.vertexBottomLeftY += bottom_left_y->get_double_value(timecode);
+
+    coords.vertexBottomRightX += bottom_right_x->get_double_value(timecode);
+    coords.vertexBottomRightY += bottom_right_y->get_double_value(timecode);
+}
diff --git a/effects/internal/cornerpineffect.h b/effects/internal/cornerpineffect.h
new file mode 100644
index 000000000..3e1bb0401
--- /dev/null
+++ b/effects/internal/cornerpineffect.h
@@ -0,0 +1,22 @@
+#ifndef CORNERPINEFFECT_H
+#define CORNERPINEFFECT_H
+
+#include "../effect.h"
+
+class CornerPinEffect : public Effect {
+    Q_OBJECT
+public:
+    CornerPinEffect(Clip* c, const EffectMeta* em);
+    void process_coords(double timecode, GLTextureCoords& coords);
+private:
+    EffectField* top_left_x;
+    EffectField* top_left_y;
+    EffectField* top_right_x;
+    EffectField* top_right_y;
+    EffectField* bottom_left_x;
+    EffectField* bottom_left_y;
+    EffectField* bottom_right_x;
+    EffectField* bottom_right_y;
+};
+
+#endif // CORNERPINEFFECT_H
diff --git a/olive.pro b/olive.pro
index 52886806d..c548f9532 100644
--- a/olive.pro
+++ b/olive.pro
@@ -82,7 +82,8 @@ SOURCES += \
     effects/internal/crossdissolvetransition.cpp \
     effects/internal/shakeeffect.cpp \
     effects/internal/exponentialfadetransition.cpp \
-    effects/internal/logarithmicfadetransition.cpp
+    effects/internal/logarithmicfadetransition.cpp \
+    effects/internal/cornerpineffect.cpp
 
 HEADERS += \
         mainwindow.h \
@@ -145,7 +146,8 @@ HEADERS += \
     effects/internal/linearfadetransition.h \
     effects/internal/crossdissolvetransition.h \
     effects/internal/exponentialfadetransition.h \
-    effects/internal/logarithmicfadetransition.h
+    effects/internal/logarithmicfadetransition.h \
+    effects/internal/cornerpineffect.h
 
 FORMS += \
         mainwindow.ui \