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#include "texteffect.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 "ui/comboboxex.h"
#include "ui/colorbutton.h"
#include "ui/fontcombobox.h"
TextEffect::TextEffect(Clip *c, const EffectMeta* em) :
Effect(c, em)
{
enable_superimpose = true;
enable_shader = true;
text_val = add_row("Text:")->add_field(EFFECT_FIELD_STRING, "text", 2);
set_font_combobox = add_row("Font:")->add_field(EFFECT_FIELD_FONT, "font", 2);
size_val = add_row("Size:")->add_field(EFFECT_FIELD_DOUBLE, "size", 2);
size_val->set_double_minimum_value(0);
set_color_button = add_row("Color:")->add_field(EFFECT_FIELD_COLOR, "color", 2);
EffectRow* alignment_row = add_row("Alignment:");
halign_field = alignment_row->add_field(EFFECT_FIELD_COMBO, "halign");
halign_field->add_combo_item("Left", Qt::AlignLeft);
halign_field->add_combo_item("Center", Qt::AlignHCenter);
halign_field->add_combo_item("Right", Qt::AlignRight);
halign_field->add_combo_item("Justify", Qt::AlignJustify);
valign_field = alignment_row->add_field(EFFECT_FIELD_COMBO, "valign");
valign_field->add_combo_item("Top", Qt::AlignTop);
valign_field->add_combo_item("Center", Qt::AlignVCenter);
valign_field->add_combo_item("Bottom", Qt::AlignBottom);
word_wrap_field = add_row("Word Wrap:")->add_field(EFFECT_FIELD_BOOL, "wordwrap", 2);
outline_bool = add_row("Outline:")->add_field(EFFECT_FIELD_BOOL, "outline", 2);
outline_color = add_row("Outline Color:")->add_field(EFFECT_FIELD_COLOR, "outlinecolor", 2);
outline_width = add_row("Outline Width:")->add_field(EFFECT_FIELD_DOUBLE, "outlinewidth", 2);
outline_width->set_double_minimum_value(0);
shadow_bool = add_row("Shadow:")->add_field(EFFECT_FIELD_BOOL, "shadow", 2);
shadow_color = add_row("Shadow Color:")->add_field(EFFECT_FIELD_COLOR, "shadowcolor", 2);
shadow_distance = add_row("Shadow Distance:")->add_field(EFFECT_FIELD_DOUBLE, "shadowdistance", 2);
shadow_distance->set_double_minimum_value(0);
shadow_softness = add_row("Shadow Softness:")->add_field(EFFECT_FIELD_DOUBLE, "shadowsoftness", 2);
shadow_softness->set_double_minimum_value(0);
shadow_opacity = add_row("Shadow Opacity:")->add_field(EFFECT_FIELD_DOUBLE, "shadowopacity", 2);
shadow_opacity->set_double_minimum_value(0);
shadow_opacity->set_double_maximum_value(100);
size_val->set_double_default_value(48);
text_val->set_string_value("Sample Text");
halign_field->set_combo_index(1);
valign_field->set_combo_index(1);
word_wrap_field->set_bool_value(true);
outline_color->set_color_value(Qt::black);
shadow_color->set_color_value(Qt::black);
shadow_opacity->set_double_default_value(100);
shadow_softness->set_double_default_value(5);
shadow_distance->set_double_default_value(5);
shadow_opacity->set_double_default_value(80);
outline_width->set_double_default_value(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) {
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(set_font_combobox->get_font_name(timecode));
font.setPointSize(size_val->get_double_value(timecode));
p.setFont(font);
QFontMetrics fm(font);
QStringList lines = text_val->get_string_value(timecode).split('\n');
// word wrap function
if (word_wrap_field->get_bool_value(timecode)) {
for (int i=0;i<lines.size();i++) {
QString s(lines.at(i));
if (fm.width(s) > width) {
int last_space_index = 0;
for (int j=0;j<s.length();j++) {
if (s.at(j) == ' ') {
if (fm.width(s.left(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;i<lines.size();i++) {
int text_x, text_y;
switch (halign_field->get_combo_data(timecode).toInt()) {
case Qt::AlignLeft: text_x = 0; break;
case Qt::AlignHCenter: text_x = (width/2) - (fm.width(lines.at(i))/2); 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<spaced.length();i++) {
if (spaced.at(i) == ' ') {
// insert a space
spaced.insert(i, ' ');
space = true;
// scan to next non-space
while (i < spaced.length() && spaced.at(i) == ' ') i++;
}
}
if (fm.width(spaced) > width || !space) {
break;
} else {
lines[i] = spaced;
}
}
break;
}
switch (valign_field->get_combo_data(timecode).toInt()) {
case Qt::AlignTop: text_y = (fm.height()*i)+fm.ascent(); break;
case Qt::AlignVCenter: text_y = ((height/2) - (text_height/2) - fm.descent()) + (fm.height()*(i+1)); break;
case Qt::AlignBottom: text_y = (height - text_height - fm.descent()) + (fm.height()*(i+1)); break;
}
path.addText(text_x, text_y, font, lines.at(i));
}
// draw outline
int outline_width_val = outline_width->get_double_value(timecode);
if (outline_bool->get_bool_value(timecode) && outline_width_val > 0) {
QPen outline(outline_color->get_color_value(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->get_color_value(timecode));
p.drawPath(path);
}
void TextEffect::shadow_enable(bool e) {
shadow_color->set_enabled(e);
shadow_distance->set_enabled(e);
shadow_softness->set_enabled(e);
shadow_opacity->set_enabled(e);
}
void TextEffect::outline_enable(bool e) {
outline_color->set_enabled(e);
outline_width->set_enabled(e);
}
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