/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
***/
#include "texteffect.h"
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "ui/labelslider.h"
#include "ui/collapsiblewidget.h"
#include "timeline/clip.h"
#include "timeline/sequence.h"
#include "ui/comboboxex.h"
#include "ui/colorbutton.h"
#include "ui/fontcombobox.h"
#include "ui/blur.h"
#include "global/config.h"
TextEffect::TextEffect(Clip* c, const EffectMeta* em) :
Effect(c, em)
{
SetFlags(Effect::SuperimposeFlag);
EffectRow* text_field = new EffectRow(this, tr("Text"));
text_val = new StringField(text_field, "text", false);
text_val->SetColumnSpan(2);
EffectRow* font_row = new EffectRow(this, tr("Font"));
set_font_combobox = new FontField(font_row, "font");
set_font_combobox->SetColumnSpan(2);
EffectRow* size_row = new EffectRow(this, tr("Size"));
size_val = new DoubleField(size_row, "size");
size_val->SetMinimum(0);
size_val->SetColumnSpan(2);
EffectRow* color_row = new EffectRow(this, tr("Color"));
set_color_button = new ColorField(color_row, "color");
set_color_button->SetColumnSpan(2);
EffectRow* alignment_row = new EffectRow(this, tr("Alignment"));
halign_field = new ComboField(alignment_row, "halign");
halign_field->AddItem(tr("Left"), Qt::AlignLeft);
halign_field->AddItem(tr("Center"), Qt::AlignHCenter);
halign_field->AddItem(tr("Right"), Qt::AlignRight);
halign_field->AddItem(tr("Justify"), Qt::AlignJustify);
valign_field = new ComboField(alignment_row, "valign");
valign_field->AddItem(tr("Top"), Qt::AlignTop);
valign_field->AddItem(tr("Center"), Qt::AlignVCenter);
valign_field->AddItem(tr("Bottom"), Qt::AlignBottom);
EffectRow* word_wrap_row = new EffectRow(this, tr("Word Wrap"));
word_wrap_field = new BoolField(word_wrap_row, "wordwrap");
word_wrap_field->SetColumnSpan(2);
EffectRow* padding_row = new EffectRow(this, tr("Padding"));
padding_field = new DoubleField(padding_row, "padding");
padding_field->SetColumnSpan(2);
EffectRow* position_row = new EffectRow(this, tr("Position"));
position_x = new DoubleField(position_row, "posx");
position_y = new DoubleField(position_row, "posy");
EffectRow* outline_row = new EffectRow(this, tr("Outline"));
outline_bool = new BoolField(outline_row, "outline");
outline_bool->SetColumnSpan(2);
EffectRow* outline_color_row = new EffectRow(this, tr("Outline Color"));
outline_color = new ColorField(outline_color_row, "outlinecolor");
outline_color->SetColumnSpan(2);
EffectRow* outline_width_row = new EffectRow(this, tr("Outline Width"));
outline_width = new DoubleField(outline_width_row, "outlinewidth");
outline_width->SetColumnSpan(2);
outline_width->SetMinimum(0);
EffectRow* shadow_row = new EffectRow(this, tr("Shadow"));
shadow_bool = new BoolField(shadow_row, "shadow");
shadow_bool->SetColumnSpan(2);
EffectRow* shadow_color_row = new EffectRow(this, tr("Shadow Color"));
shadow_color = new ColorField(shadow_color_row, "shadowcolor");
shadow_color->SetColumnSpan(2);
EffectRow* shadow_angle_row = new EffectRow(this, tr("Shadow Angle"));
shadow_angle = new DoubleField(shadow_angle_row, "shadowangle");
shadow_angle->SetColumnSpan(2);
EffectRow* shadow_distance_row = new EffectRow(this, tr("Shadow Distance"));
shadow_distance = new DoubleField(shadow_distance_row, "shadowdistance");
shadow_distance->SetColumnSpan(2);
shadow_distance->SetMinimum(0);
EffectRow* shadow_softness_row = new EffectRow(this, tr("Shadow Softness"));
shadow_softness = new DoubleField(shadow_softness_row, "shadowsoftness");
shadow_softness->SetColumnSpan(2);
shadow_softness->SetMinimum(0);
EffectRow* shadow_opacity_row = new EffectRow(this, tr("Shadow Opacity"));
shadow_opacity = new DoubleField(shadow_opacity_row, "shadowopacity");
shadow_opacity->SetColumnSpan(2);
shadow_opacity->SetMinimum(0);
shadow_opacity->SetMaximum(100);
size_val->SetDefault(48);
text_val->SetValueAt(0, tr("Sample Text"));
set_color_button->SetValueAt(0, QColor(Qt::white));
halign_field->SetValueAt(0, Qt::AlignHCenter);
valign_field->SetValueAt(0, Qt::AlignVCenter);
word_wrap_field->SetValueAt(0, true);
outline_color->SetValueAt(0, QColor(Qt::black));
shadow_color->SetValueAt(0, QColor(Qt::black));
shadow_angle->SetDefault(45);
shadow_opacity->SetDefault(100);
shadow_softness->SetDefault(5);
shadow_distance->SetDefault(5);
shadow_opacity->SetDefault(80);
outline_width->SetDefault(20);
outline_enable(false);
shadow_enable(false);
connect(shadow_bool, SIGNAL(Toggled(bool)), this, SLOT(shadow_enable(bool)));
connect(outline_bool, SIGNAL(Toggled(bool)), this, SLOT(outline_enable(bool)));
vertPath = "common.vert";
fragPath = "dropshadow.frag";
}
void TextEffect::redraw(double timecode) {
if (size_val->GetDoubleAt(timecode) <= 0) {
return;
}
QColor bkg = set_color_button->GetColorAt(timecode);
bkg.setAlpha(0);
img.fill(bkg);
QPainter p(&img);
p.setRenderHint(QPainter::Antialiasing);
int padding = qRound(padding_field->GetDoubleAt(timecode));
int width = img.width() - padding * 2;
int height = img.height() - padding * 2;
// set font
font.setStyleHint(QFont::Helvetica, QFont::PreferAntialias);
font.setFamily(set_font_combobox->GetFontAt(timecode));
font.setPointSize(qRound(size_val->GetDoubleAt(timecode)));
p.setFont(font);
QFontMetrics fm(font);
QStringList lines = text_val->GetStringAt(timecode).split('\n');
// word wrap function
if (word_wrap_field->GetBoolAt(timecode)) {
for (int i=0;i width) {
int last_space_index = 0;
for (int j=0;j width) {
break;
} else {
last_space_index = j;
}
}
}
if (last_space_index > 0) {
lines.insert(i+1, s.mid(last_space_index + 1));
lines[i] = s.left(last_space_index);
}
}
}
}
QPainterPath path;
int text_height = fm.height()*lines.size();
for (int i=0;iGetValueAt(timecode).toInt()) {
case Qt::AlignLeft: text_x = 0; break;
case Qt::AlignRight: text_x = width - fm.width(lines.at(i)); break;
case Qt::AlignJustify:
// add spaces until the string is too big
text_x = 0;
while (fm.width(lines.at(i)) < width) {
bool space = false;
QString spaced(lines.at(i));
for (int i=0;i width || !space) {
break;
} else {
lines[i] = spaced;
}
}
break;
case Qt::AlignHCenter:
default:
text_x = (width/2) - (fm.width(lines.at(i))/2);
break;
}
switch (valign_field->GetValueAt(timecode).toInt()) {
case Qt::AlignTop:
text_y = (fm.height()*i)+fm.ascent();
break;
case Qt::AlignBottom:
text_y = (height - text_height - fm.descent()) + (fm.height()*(i+1));
break;
case Qt::AlignVCenter:
default:
text_y = ((height/2) - (text_height/2) - fm.descent()) + (fm.height()*(i+1));
break;
}
path.addText(text_x, text_y, font, lines.at(i));
}
path.translate(position_x->GetDoubleAt(timecode) + padding, position_y->GetDoubleAt(timecode) + padding);
// draw software shadow
if (shadow_bool->GetBoolAt(timecode)) {
p.setPen(Qt::NoPen);
// calculate offset using distance and angle
double angle = shadow_angle->GetDoubleAt(timecode) * M_PI / 180.0;
double distance = qFloor(shadow_distance->GetDoubleAt(timecode));
int shadow_x_offset = qRound(qCos(angle) * distance);
int shadow_y_offset = qRound(qSin(angle) * distance);
QPainterPath shadow_path(path);
shadow_path.translate(shadow_x_offset, shadow_y_offset);
QColor col = shadow_color->GetColorAt(timecode);
col.setAlpha(0);
img.fill(col);
col.setAlphaF(shadow_opacity->GetDoubleAt(timecode)*0.01);
p.setBrush(col);
p.drawPath(shadow_path);
int blurSoftness = qFloor(shadow_softness->GetDoubleAt(timecode));
if (blurSoftness > 0) olive::ui::blur(img, img.rect(), blurSoftness, true);
}
// draw outline
int outline_width_val = qCeil(outline_width->GetDoubleAt(timecode));
if (outline_bool->GetBoolAt(timecode) && outline_width_val > 0) {
QPen outline(outline_color->GetColorAt(timecode));
outline.setWidth(outline_width_val);
p.setPen(outline);
p.setBrush(Qt::NoBrush);
p.drawPath(path);
}
// draw "master" text
p.setPen(Qt::NoPen);
p.setBrush(set_color_button->GetColorAt(timecode));
p.drawPath(path);
p.end();
}
void TextEffect::shadow_enable(bool e) {
shadow_color->SetEnabled(e);
shadow_angle->SetEnabled(e);
shadow_distance->SetEnabled(e);
shadow_softness->SetEnabled(e);
shadow_opacity->SetEnabled(e);
}
void TextEffect::outline_enable(bool e) {
outline_color->SetEnabled(e);
outline_width->SetEnabled(e);
}