Add Timecode Display effect

2018-11-29 19:11:10 +10:30
parent 48c196bdf5
commit 35f699e02e
5 changed files with 339 additions and 190 deletions
@@ -0,0 +1,108 @@
+#include "timecodeeffect.h"
+
+#include <QGridLayout>
+#include <QLabel>
+#include <QOpenGLTexture>
+#include <QTextEdit>
+#include <QPainter>
+#include <QPushButton>
+#include <QColorDialog>
+#include <QFontDatabase>
+#include <QComboBox>
+#include <QWidget>
+#include <QtMath>
+
+#include "ui/labelslider.h"
+#include "ui/collapsiblewidget.h"
+#include "project/clip.h"
+#include "project/sequence.h"
+#include "panels/viewer.h"
+#include "ui/comboboxex.h"
+#include "ui/colorbutton.h"
+#include "ui/fontcombobox.h"
+#include "io/config.h"
+
+TimecodeEffect::TimecodeEffect(Clip *c, const EffectMeta* em) :
+    Effect(c, em)
+{
+    enable_always_update = true;
+	enable_superimpose = true;
+
+    scale_val = add_row("Scale:")->add_field(EFFECT_FIELD_DOUBLE, 2);
+    scale_val->set_double_minimum_value(1);
+    scale_val->set_double_default_value(100);
+    scale_val->set_double_maximum_value(1000);
+    scale_val->id = "scale";
+
+    color_val = add_row("Color:")->add_field(EFFECT_FIELD_COLOR, 2);
+    color_val->set_color_value(Qt::white);
+    color_val->id = "color";
+
+    color_bg_val = add_row("Background Color:")->add_field(EFFECT_FIELD_COLOR, 2);
+    color_bg_val->set_color_value(Qt::black);
+    color_bg_val->id = "bgcolor";
+
+    bg_alpha = add_row("Background Opacity:")->add_field(EFFECT_FIELD_DOUBLE, 2);
+    bg_alpha->set_double_minimum_value(0);
+    bg_alpha->set_double_maximum_value(100);
+    bg_alpha->set_double_default_value(50);
+
+    EffectRow* offset = add_row("Offset XY:");
+    offset_x_val = offset->add_field(EFFECT_FIELD_DOUBLE);
+    offset_x_val->id = "offsetx";
+    offset_y_val = offset->add_field(EFFECT_FIELD_DOUBLE);
+    offset_y_val->id = "offsety";
+
+    prepend_text = add_row("Prepend:")->add_field(EFFECT_FIELD_STRING, 2);
+    prepend_text->id = "prepend";
+
+    connect(scale_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(color_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(color_bg_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(bg_alpha, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(offset_x_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(offset_y_val, SIGNAL(changed()), this, SLOT(field_changed()));
+    connect(prepend_text, SIGNAL(changed()), this, SLOT(field_changed()));
+}
+
+
+void TimecodeEffect::redraw(double timecode) {
+    sequence_timecode = prepend_text->get_string_value(timecode) + frame_to_timecode(sequence->playhead, config.timecode_view, sequence->frame_rate);
+    img.fill(Qt::transparent);
+
+	QPainter p(&img);
+	p.setRenderHint(QPainter::Antialiasing);
+	int width = img.width();
+	int height = img.height();
+
+	// set font
+	font.setStyleHint(QFont::Helvetica, QFont::PreferAntialias);
+    font.setFamily("Helvetica");
+    font.setPixelSize(int(scale_val->get_double_value(timecode)*.01*(height/10)));
+    p.setFont(font);
+	QFontMetrics fm(font);
+
+    QPainterPath path;
+
+    int text_x, text_y, rect_y, offset_x, offset_y;
+    int text_height = fm.height();
+    int text_width = fm.width(sequence_timecode);
+    QColor background_color = color_bg_val->get_color_value(timecode);
+    int alpha_val = bg_alpha->get_double_value(timecode)*.01*255;
+    background_color.setAlpha(alpha_val);
+
+    offset_x = int(offset_x_val->get_double_value(timecode));
+    offset_y = int(offset_y_val->get_double_value(timecode));
+
+    text_x = offset_x + (width/2) - (text_width/2);
+    text_y = offset_y + height - height/10;//fm.descent();
+    rect_y = text_y + fm.descent()/2 - text_height;
+
+    path.addText(text_x, text_y, font, sequence_timecode);
+
+    p.setPen(Qt::NoPen);
+    p.setBrush(background_color);
+    p.drawRect(QRect(text_x-fm.descent()/2, rect_y, text_width+fm.descent(), text_height));
+    p.setBrush(color_val->get_color_value(timecode));
+    p.drawPath(path);
+}