229 lines
7.2 KiB
C++
229 lines
7.2 KiB
C++
#include "texteffect.h"
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#include <QGridLayout>
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#include <QLabel>
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#include <QOpenGLTexture>
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#include <QTextEdit>
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#include <QPainter>
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#include <QPushButton>
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#include <QColorDialog>
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#include <QFontDatabase>
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#include <QComboBox>
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#include <QWidget>
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#include <QtMath>
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#include <QMenu>
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#include "ui/labelslider.h"
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#include "ui/collapsiblewidget.h"
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#include "project/clip.h"
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#include "project/sequence.h"
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#include "ui/comboboxex.h"
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#include "ui/colorbutton.h"
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#include "ui/fontcombobox.h"
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#include "dialogs/texteditdialog.h"
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#include "mainwindow.h"
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TextEffect::TextEffect(Clip *c, const EffectMeta* em) :
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Effect(c, em)
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{
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enable_superimpose = true;
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//enable_shader = true;
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text_val = add_row(tr("Text"))->add_field(EFFECT_FIELD_STRING, "text", 2);
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QTextEdit* text_widget = static_cast<QTextEdit*>(text_val->ui_element);
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text_widget->setContextMenuPolicy(Qt::CustomContextMenu);
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connect(text_widget, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(text_edit_menu()));
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set_font_combobox = add_row(tr("Font"))->add_field(EFFECT_FIELD_FONT, "font", 2);
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size_val = add_row(tr("Size"))->add_field(EFFECT_FIELD_DOUBLE, "size", 2);
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size_val->set_double_minimum_value(0);
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set_color_button = add_row(tr("Color"))->add_field(EFFECT_FIELD_COLOR, "color", 2);
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EffectRow* alignment_row = add_row(tr("Alignment"));
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halign_field = alignment_row->add_field(EFFECT_FIELD_COMBO, "halign");
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halign_field->add_combo_item(tr("Left"), Qt::AlignLeft);
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halign_field->add_combo_item(tr("Center"), Qt::AlignHCenter);
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halign_field->add_combo_item(tr("Right"), Qt::AlignRight);
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halign_field->add_combo_item(tr("Justify"), Qt::AlignJustify);
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valign_field = alignment_row->add_field(EFFECT_FIELD_COMBO, "valign");
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valign_field->add_combo_item(tr("Top"), Qt::AlignTop);
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valign_field->add_combo_item(tr("Center"), Qt::AlignVCenter);
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valign_field->add_combo_item(tr("Bottom"), Qt::AlignBottom);
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word_wrap_field = add_row(tr("Word Wrap"))->add_field(EFFECT_FIELD_BOOL, "wordwrap", 2);
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outline_bool = add_row(tr("Outline"))->add_field(EFFECT_FIELD_BOOL, "outline", 2);
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outline_color = add_row(tr("Outline Color"))->add_field(EFFECT_FIELD_COLOR, "outlinecolor", 2);
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outline_width = add_row(tr("Outline Width"))->add_field(EFFECT_FIELD_DOUBLE, "outlinewidth", 2);
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outline_width->set_double_minimum_value(0);
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shadow_bool = add_row(tr("Shadow"))->add_field(EFFECT_FIELD_BOOL, "shadow", 2);
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shadow_color = add_row(tr("Shadow Color"))->add_field(EFFECT_FIELD_COLOR, "shadowcolor", 2);
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shadow_distance = add_row(tr("Shadow Distance"))->add_field(EFFECT_FIELD_DOUBLE, "shadowdistance", 2);
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shadow_distance->set_double_minimum_value(0);
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shadow_softness = add_row(tr("Shadow Softness"))->add_field(EFFECT_FIELD_DOUBLE, "shadowsoftness", 2);
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shadow_softness->set_double_minimum_value(0);
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shadow_opacity = add_row(tr("Shadow Opacity"))->add_field(EFFECT_FIELD_DOUBLE, "shadowopacity", 2);
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shadow_opacity->set_double_minimum_value(0);
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shadow_opacity->set_double_maximum_value(100);
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size_val->set_double_default_value(48);
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text_val->set_string_value(tr("Sample Text"));
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halign_field->set_combo_index(1);
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valign_field->set_combo_index(1);
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word_wrap_field->set_bool_value(true);
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outline_color->set_color_value(Qt::black);
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shadow_color->set_color_value(Qt::black);
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shadow_opacity->set_double_default_value(100);
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shadow_softness->set_double_default_value(5);
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shadow_distance->set_double_default_value(5);
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shadow_opacity->set_double_default_value(80);
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outline_width->set_double_default_value(20);
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outline_enable(false);
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shadow_enable(false);
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connect(shadow_bool, SIGNAL(toggled(bool)), this, SLOT(shadow_enable(bool)));
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connect(outline_bool, SIGNAL(toggled(bool)), this, SLOT(outline_enable(bool)));
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vertPath = "common.vert";
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fragPath = "dropshadow.frag";
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}
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void TextEffect::redraw(double timecode) {
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img.fill(Qt::transparent);
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QPainter p(&img);
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p.setRenderHint(QPainter::Antialiasing);
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int width = img.width();
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int height = img.height();
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// set font
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font.setStyleHint(QFont::Helvetica, QFont::PreferAntialias);
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font.setFamily(set_font_combobox->get_font_name(timecode));
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font.setPointSize(size_val->get_double_value(timecode));
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p.setFont(font);
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QFontMetrics fm(font);
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QStringList lines = text_val->get_string_value(timecode).split('\n');
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// word wrap function
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if (word_wrap_field->get_bool_value(timecode)) {
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for (int i=0;i<lines.size();i++) {
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QString s(lines.at(i));
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if (fm.width(s) > width) {
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int last_space_index = 0;
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for (int j=0;j<s.length();j++) {
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if (s.at(j) == ' ') {
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if (fm.width(s.left(j)) > width) {
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break;
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} else {
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last_space_index = j;
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}
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}
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}
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if (last_space_index > 0) {
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lines.insert(i+1, s.mid(last_space_index + 1));
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lines[i] = s.left(last_space_index);
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}
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}
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}
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}
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QPainterPath path;
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int text_height = fm.height()*lines.size();
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for (int i=0;i<lines.size();i++) {
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int text_x, text_y;
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switch (halign_field->get_combo_data(timecode).toInt()) {
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case Qt::AlignLeft: text_x = 0; break;
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case Qt::AlignHCenter: text_x = (width/2) - (fm.width(lines.at(i))/2); break;
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case Qt::AlignRight: text_x = width - fm.width(lines.at(i)); break;
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case Qt::AlignJustify:
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// add spaces until the string is too big
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text_x = 0;
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while (fm.width(lines.at(i)) < width) {
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bool space = false;
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QString spaced(lines.at(i));
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for (int i=0;i<spaced.length();i++) {
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if (spaced.at(i) == ' ') {
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// insert a space
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spaced.insert(i, ' ');
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space = true;
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// scan to next non-space
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while (i < spaced.length() && spaced.at(i) == ' ') i++;
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}
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}
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if (fm.width(spaced) > width || !space) {
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break;
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} else {
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lines[i] = spaced;
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}
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}
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break;
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}
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switch (valign_field->get_combo_data(timecode).toInt()) {
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case Qt::AlignTop: text_y = (fm.height()*i)+fm.ascent(); break;
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case Qt::AlignVCenter: text_y = ((height/2) - (text_height/2) - fm.descent()) + (fm.height()*(i+1)); break;
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case Qt::AlignBottom: text_y = (height - text_height - fm.descent()) + (fm.height()*(i+1)); break;
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}
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path.addText(text_x, text_y, font, lines.at(i));
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}
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// draw outline
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int outline_width_val = outline_width->get_double_value(timecode);
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if (outline_bool->get_bool_value(timecode) && outline_width_val > 0) {
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QPen outline(outline_color->get_color_value(timecode));
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outline.setWidth(outline_width_val);
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p.setPen(outline);
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p.setBrush(Qt::NoBrush);
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p.drawPath(path);
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}
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// draw "master" text
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p.setPen(Qt::NoPen);
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p.setBrush(set_color_button->get_color_value(timecode));
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p.drawPath(path);
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}
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void TextEffect::shadow_enable(bool e) {
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enable_shader = e;
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close();
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shadow_color->set_enabled(e);
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shadow_distance->set_enabled(e);
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shadow_softness->set_enabled(e);
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shadow_opacity->set_enabled(e);
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}
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void TextEffect::text_edit_menu() {
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QMenu menu;
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menu.addAction(tr("&Edit Text"), this, SLOT(open_text_edit()));
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menu.exec(QCursor::pos());
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}
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void TextEffect::open_text_edit() {
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TextEditDialog ted(mainWindow, text_val->get_current_data().toString());
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ted.exec();
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QString result = ted.get_string();
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if (!result.isEmpty()) {
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text_val->set_current_data(result);
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text_val->ui_element_change();
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}
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}
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void TextEffect::outline_enable(bool e) {
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outline_color->set_enabled(e);
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outline_width->set_enabled(e);
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}
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