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优化代码格式（VS）

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BlueMatthew 1 year ago
parent ab93ef9fc9
commit db9047a97d
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app/src/main/cpp/CvText.h
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@ -11,125 +11,126 @@
#include <opencv2/core.hpp> #include <opencv2/core.hpp>
namespace cv { namespace cv {
namespace ft { namespace ft {
using cv::String; using cv::String;
// using cv::CV_Assert; // using cv::CV_Assert;
class FreeType2 : public Algorithm class FreeType2 : public Algorithm
{ {
public: public:
/** @brief Load font data. /** @brief Load font data.
The function loadFontData loads font data. The function loadFontData loads font data.
@param fontFileName FontFile Name @param fontFileName FontFile Name
@param idx face_index to select a font faces in a single file. @param idx face_index to select a font faces in a single file.
*/ */
virtual void loadFontData(String fontFileName, int idx) = 0; virtual void loadFontData(String fontFileName, int idx) = 0;
/** @brief Set Split Number from Bezier-curve to line /** @brief Set Split Number from Bezier-curve to line
The function setSplitNumber set the number of split points from bezier-curve to line. The function setSplitNumber set the number of split points from bezier-curve to line.
If you want to draw large glyph, large is better. If you want to draw large glyph, large is better.
If you want to draw small glyph, small is better. If you want to draw small glyph, small is better.
@param num number of split points from bezier-curve to line @param num number of split points from bezier-curve to line
*/ */
virtual void setSplitNumber( int num ) = 0; virtual void setSplitNumber(int num) = 0;
/** @brief Draws a text string. /** @brief Draws a text string.
The function putText renders the specified text string in the image. Symbols that cannot be rendered using the specified font are replaced by "Tofu" or non-drawn. The function putText renders the specified text string in the image. Symbols that cannot be rendered using the specified font are replaced by "Tofu" or non-drawn.
@param img Image. (Only 8UC1/8UC3/8UC4 2D mat is supported.) @param img Image. (Only 8UC1/8UC3/8UC4 2D mat is supported.)
@param text Text string to be drawn. @param text Text string to be drawn.
@param org Bottom-left/Top-left corner of the text string in the image. @param org Bottom-left/Top-left corner of the text string in the image.
@param fontHeight Drawing font size by pixel unit. @param fontHeight Drawing font size by pixel unit.
@param color Text color. @param color Text color.
@param thickness Thickness of the lines used to draw a text when negative, the glyph is filled. Otherwise, the glyph is drawn with this thickness. @param thickness Thickness of the lines used to draw a text when negative, the glyph is filled. Otherwise, the glyph is drawn with this thickness.
@param line_type Line type. See the line for details. @param line_type Line type. See the line for details.
@param bottomLeftOrigin When true, the image data origin is at the bottom-left corner. Otherwise, it is at the top-left corner. @param bottomLeftOrigin When true, the image data origin is at the bottom-left corner. Otherwise, it is at the top-left corner.
*/ */
virtual void putText( virtual void putText(
InputOutputArray img, const String& text, Point org, InputOutputArray img, const String& text, Point org,
int fontHeight, Scalar color, int fontHeight, Scalar color,
int thickness, int line_type, bool bottomLeftOrigin int thickness, int line_type, bool bottomLeftOrigin
) = 0; ) = 0;
/** @brief Calculates the width and height of a text string. /** @brief Calculates the width and height of a text string.
The function getTextSize calculates and returns the approximate size of a box that contains the specified text. The function getTextSize calculates and returns the approximate size of a box that contains the specified text.
That is, the following code renders some text, the tight box surrounding it, and the baseline: : That is, the following code renders some text, the tight box surrounding it, and the baseline: :
@code @code
String text = "Funny text inside the box"; String text = "Funny text inside the box";
int fontHeight = 60; int fontHeight = 60;
int thickness = -1; int thickness = -1;
int linestyle = LINE_8; int linestyle = LINE_8;
Mat img(600, 800, CV_8UC3, Scalar::all(0)); Mat img(600, 800, CV_8UC3, Scalar::all(0));
int baseline=0; int baseline=0;
cv::Ptr<cv::freetype::FreeType2> ft2; cv::Ptr<cv::freetype::FreeType2> ft2;
ft2 = cv::freetype::createFreeType2(); ft2 = cv::freetype::createFreeType2();
ft2->loadFontData( "./mplus-1p-regular.ttf", 0 ); ft2->loadFontData( "./mplus-1p-regular.ttf", 0 );
Size textSize = ft2->getTextSize(text, Size textSize = ft2->getTextSize(text,
fontHeight, fontHeight,
thickness, thickness,
&baseline); &baseline);
if(thickness > 0){ if(thickness > 0){
baseline += thickness; baseline += thickness;
} }
// center the text // center the text
Point textOrg((img.cols - textSize.width) / 2, Point textOrg((img.cols - textSize.width) / 2,
(img.rows + textSize.height) / 2); (img.rows + textSize.height) / 2);
// draw the box // draw the box
rectangle(img, textOrg + Point(0, baseline), rectangle(img, textOrg + Point(0, baseline),
textOrg + Point(textSize.width, -textSize.height), textOrg + Point(textSize.width, -textSize.height),
Scalar(0,255,0),1,8); Scalar(0,255,0),1,8);
// ... and the baseline first // ... and the baseline first
line(img, textOrg + Point(0, thickness), line(img, textOrg + Point(0, thickness),
textOrg + Point(textSize.width, thickness), textOrg + Point(textSize.width, thickness),
Scalar(0, 0, 255),1,8); Scalar(0, 0, 255),1,8);
// then put the text itself // then put the text itself
ft2->putText(img, text, textOrg, fontHeight, ft2->putText(img, text, textOrg, fontHeight,
Scalar::all(255), thickness, linestyle, true ); Scalar::all(255), thickness, linestyle, true );
@endcode @endcode
@param text Input text string. @param text Input text string.
@param fontHeight Drawing font size by pixel unit. @param fontHeight Drawing font size by pixel unit.
@param thickness Thickness of lines used to render the text. See putText for details. @param thickness Thickness of lines used to render the text. See putText for details.
@param[out] baseLine y-coordinate of the baseline relative to the bottom-most text @param[out] baseLine y-coordinate of the baseline relative to the bottom-most text
point. point.
@return The size of a box that contains the specified text. @return The size of a box that contains the specified text.
@see cv::putText @see cv::putText
*/ */
virtual Size getTextSize(const String& text, virtual Size getTextSize(const String& text,
int fontHeight, int thickness, int fontHeight, int thickness,
CV_OUT int* baseLine) = 0; CV_OUT int* baseLine) = 0;
}; };
/** @brief Create FreeType2 Instance /** @brief Create FreeType2 Instance
The function createFreeType2 create instance to draw UTF-8 strings. The function createFreeType2 create instance to draw UTF-8 strings.
*/ */
Ptr<FreeType2> createFreeType2(); Ptr<FreeType2> createFreeType2();
//! @} //! @}
} } // namespace freetype }
} // namespace freetype
#endif // _OPENCV_CVText_ #endif // _OPENCV_CVText_

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