OpenShot Library | libopenshot
0.2.5
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31 #include "../../include/effects/Bars.h"
36 Bars::Bars() : color(
"#000000"), left(0.0), top(0.1), right(0.0), bottom(0.1) {
38 init_effect_details();
43 color(color), left(left), top(top), right(right), bottom(bottom)
46 init_effect_details();
50 void Bars::init_effect_details()
65 std::shared_ptr<Frame>
Bars::GetFrame(std::shared_ptr<Frame> frame, int64_t frame_number)
68 std::shared_ptr<QImage> frame_image = frame->
GetImage();
71 std::shared_ptr<QImage> tempColor = std::shared_ptr<QImage>(
new QImage(frame_image->width(), 1, QImage::Format_RGBA8888));
72 tempColor->fill(QColor(QString::fromStdString(
color.
GetColorHex(frame_number))));
81 unsigned char *pixels = (
unsigned char *) frame_image->bits();
82 unsigned char *color_pixels = (
unsigned char *) tempColor->bits();
85 int top_bar_height = top_value * frame_image->height();
86 int bottom_bar_height = bottom_value * frame_image->height();
87 int left_bar_width = left_value * frame_image->width();
88 int right_bar_width = right_value * frame_image->width();
91 for (
int row = 0; row < frame_image->height(); row++) {
94 if ((top_bar_height > 0.0 && row <= top_bar_height) || (bottom_bar_height > 0.0 && row >= frame_image->height() - bottom_bar_height)) {
95 memcpy(&pixels[row * frame_image->width() * 4], color_pixels,
sizeof(
char) * frame_image->width() * 4);
98 if (left_bar_width > 0.0) {
99 memcpy(&pixels[row * frame_image->width() * 4], color_pixels,
sizeof(
char) * left_bar_width * 4);
103 if (right_bar_width > 0.0) {
104 memcpy(&pixels[((row * frame_image->width()) + (frame_image->width() - right_bar_width)) * 4], color_pixels,
sizeof(
char) * right_bar_width * 4);
149 catch (
const std::exception& e)
152 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
163 if (!root[
"color"].isNull())
165 if (!root[
"left"].isNull())
167 if (!root[
"top"].isNull())
169 if (!root[
"right"].isNull())
171 if (!root[
"bottom"].isNull())
180 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
181 root[
"position"] =
add_property_json(
"Position", Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
182 root[
"layer"] =
add_property_json(
"Track", Layer(),
"int",
"", NULL, 0, 20,
false, requested_frame);
183 root[
"start"] =
add_property_json(
"Start", Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
184 root[
"end"] =
add_property_json(
"End", End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
185 root[
"duration"] =
add_property_json(
"Duration", Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
188 root[
"color"] =
add_property_json(
"Bar Color", 0.0,
"color",
"", NULL, 0, 255,
false, requested_frame);
198 return root.toStyledString();
Json::Value add_property_json(std::string name, float value, std::string type, std::string memo, const Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame) const
Generate JSON for a property.
const Json::Value stringToJson(const std::string value)
void SetJson(const std::string value)
Load JSON string into this object.
EffectInfoStruct info
Information about the current effect.
This namespace is the default namespace for all code in the openshot library.
std::string Json() const override
Get and Set JSON methods.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
Keyframe left
Size of left bar.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
Json::Value JsonValue() const
Generate Json::Value for this object.
This class represents a color (used on the timeline and clips)
Bars()
Blank constructor, useful when using Json to load the effect properties.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
Keyframe bottom
Size of bottom bar.
Exception for invalid JSON.
openshot::Keyframe green
Curve representing the green value (0 - 255)
bool has_audio
Determines if this effect manipulates the audio of a frame.
Keyframe right
Size of right bar.
Color color
Color of bars.
std::string PropertiesJSON(int64_t requested_frame) const override
Json::Value JsonValue() const override
Generate Json::Value for this object.
std::string class_name
The class name of the effect.
Json::Value JsonValue() const
Generate Json::Value for this object.
std::string description
The description of this effect and what it does.
bool has_video
Determines if this effect manipulates the image of a frame.
std::shared_ptr< Frame > GetFrame(std::shared_ptr< Frame > frame, int64_t frame_number)
This method is required for all derived classes of EffectBase, and returns a modified openshot::Frame...
void Id(std::string value)
Set basic properties.
std::shared_ptr< QImage > GetImage()
Get pointer to Qt QImage image object.
std::string name
The name of the effect.
Keyframe top
Size of top bar.
openshot::Keyframe red
Curve representing the red value (0 - 255)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
std::string GetColorHex(int64_t frame_number)
Get the HEX value of a color at a specific frame.
openshot::Keyframe blue
Curve representing the red value (0 - 255)
double GetValue(int64_t index) const
Get the value at a specific index.