21 #include <QTextDocument>
22 #include <QGuiApplication>
23 #include <QAbstractTextDocumentLayout>
36 : width(width), height(height), x_offset(x_offset), y_offset(y_offset), gravity(gravity), html(html), css(css), background_color(background_color), is_open(false)
50 image = std::make_shared<QImage>(width, height, QImage::Format_RGBA8888_Premultiplied);
51 image->fill(QColor(background_color.c_str()));
55 if (!painter.begin(image.get())) {
60 painter.setBackground(QBrush(background_color.c_str()));
63 QTextDocument text_document;
66 text_document.setUndoRedoEnabled(
false);
69 text_document.setTextWidth(width);
70 text_document.setDefaultStyleSheet(css.c_str());
71 text_document.setHtml(html.c_str());
73 int td_height = text_document.documentLayout()->documentSize().height();
76 painter.translate(x_offset, y_offset);
78 painter.translate(x_offset, (height - td_height) / 2 + y_offset);
80 painter.translate(x_offset, height - td_height + y_offset);
84 text_document.setDefaultTextOption(QTextOption(Qt::AlignLeft));
86 text_document.setDefaultTextOption(QTextOption(Qt::AlignHCenter));
88 text_document.setDefaultTextOption(QTextOption(Qt::AlignRight));
92 text_document.drawContents(&painter);
150 auto image_frame = std::make_shared<Frame>(
151 requested_frame, image->size().width(), image->size().height(),
152 background_color, 0, 2);
155 image_frame->AddImage(image);
161 auto image_frame = std::make_shared<Frame>(
162 1, 640, 480, background_color, 0, 2);
182 root[
"type"] =
"QtHtmlReader";
183 root[
"width"] = width;
184 root[
"height"] = height;
185 root[
"x_offset"] = x_offset;
186 root[
"y_offset"] = y_offset;
189 root[
"background_color"] = background_color;
190 root[
"gravity"] = gravity;
206 catch (
const std::exception& e)
209 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
220 if (!root[
"width"].isNull())
221 width = root[
"width"].asInt();
222 if (!root[
"height"].isNull())
223 height = root[
"height"].asInt();
224 if (!root[
"x_offset"].isNull())
225 x_offset = root[
"x_offset"].asInt();
226 if (!root[
"y_offset"].isNull())
227 y_offset = root[
"y_offset"].asInt();
228 if (!root[
"html"].isNull())
229 html = root[
"html"].asString();
230 if (!root[
"css"].isNull())
231 css = root[
"css"].asString();
232 if (!root[
"background_color"].isNull())
233 background_color = root[
"background_color"].asString();
234 if (!root[
"gravity"].isNull())
Header file for all Exception classes.
Header file for Frame class.
Header file for QtHtmlReader class.
This class represents a fraction.
int num
Numerator for the fraction.
double ToDouble() const
Return this fraction as a double (i.e. 1/2 = 0.5)
void Reduce()
Reduce this fraction (i.e. 640/480 = 4/3)
int den
Denominator for the fraction.
Exception for invalid JSON.
void SetJsonValue(const Json::Value root) override
Load Json::Value into this object.
std::shared_ptr< openshot::Frame > GetFrame(int64_t requested_frame) override
Json::Value JsonValue() const override
Generate Json::Value for this object.
std::string Json() const override
Generate JSON string of this object.
void Close() override
Close Reader.
QtHtmlReader()
Default constructor (blank text)
void Open() override
Open Reader - which is called by the constructor automatically.
void SetJson(const std::string value) override
Load JSON string into this object.
openshot::ReaderInfo info
Information about the current media file.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
This namespace is the default namespace for all code in the openshot library.
GravityType
This enumeration determines how clips are aligned to their parent container.
@ GRAVITY_TOP_LEFT
Align clip to the top left of its parent.
@ GRAVITY_LEFT
Align clip to the left of its parent (middle aligned)
@ GRAVITY_TOP_RIGHT
Align clip to the top right of its parent.
@ GRAVITY_RIGHT
Align clip to the right of its parent (middle aligned)
@ GRAVITY_BOTTOM_LEFT
Align clip to the bottom left of its parent.
@ GRAVITY_BOTTOM
Align clip to the bottom center of its parent.
@ GRAVITY_TOP
Align clip to the top center of its parent.
@ GRAVITY_BOTTOM_RIGHT
Align clip to the bottom right of its parent.
@ GRAVITY_CENTER
Align clip to the center of its parent (middle aligned)
const Json::Value stringToJson(const std::string value)
float duration
Length of time (in seconds)
int width
The width of the video (in pixesl)
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3)
int height
The height of the video (in pixels)
int64_t video_length
The number of frames in the video stream.
std::string acodec
The name of the audio codec used to encode / decode the video stream.
std::string vcodec
The name of the video codec used to encode / decode the video stream.
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square)
bool has_video
Determines if this file has a video stream.
bool has_audio
Determines if this file has an audio stream.
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
int64_t file_size
Size of file (in bytes)