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opencv/modules/highgui/src/window.cpp
Maksim Shabunin 04818d6dd5 build: made environment access a separate feature
2024-10-30 18:37:22 +03:00

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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
#include "backend.hpp"
#include "opencv2/core/opengl.hpp"
#include "opencv2/core/utils/logger.hpp"
// in later times, use this file as a dispatcher to implementations like cvcap.cpp
using namespace cv;
using namespace cv::highgui_backend;
namespace cv {
Mutex& getWindowMutex()
{
static Mutex* g_window_mutex = new Mutex();
return *g_window_mutex;
}
namespace impl {
typedef std::map<std::string, highgui_backend::UIWindowBase::Ptr> WindowsMap_t;
static WindowsMap_t& getWindowsMap()
{
static WindowsMap_t g_windowsMap;
return g_windowsMap;
}
static std::shared_ptr<UIWindow> findWindow_(const std::string& name)
{
cv::AutoLock lock(cv::getWindowMutex());
auto& windowsMap = getWindowsMap();
auto i = windowsMap.find(name);
if (i != windowsMap.end())
{
const auto& ui_base = i->second;
if (ui_base)
{
if (!ui_base->isActive())
{
windowsMap.erase(i);
return std::shared_ptr<UIWindow>();
}
auto window = std::dynamic_pointer_cast<UIWindow>(ui_base);
return window;
}
}
return std::shared_ptr<UIWindow>();
}
static void cleanupTrackbarCallbacksWithData_(); // forward declaration
static void cleanupClosedWindows_()
{
cv::AutoLock lock(cv::getWindowMutex());
auto& windowsMap = getWindowsMap();
for (auto it = windowsMap.begin(); it != windowsMap.end();)
{
const auto& ui_base = it->second;
bool erase = (!ui_base || !ui_base->isActive());
if (erase)
{
it = windowsMap.erase(it);
}
else
{
++it;
}
}
cleanupTrackbarCallbacksWithData_();
}
// Just to support deprecated API, to be removed
struct TrackbarCallbackWithData
{
std::weak_ptr<UITrackbar> trackbar_;
int* data_;
TrackbarCallback callback_;
void* userdata_;
TrackbarCallbackWithData(int* data, TrackbarCallback callback, void* userdata)
: data_(data)
, callback_(callback), userdata_(userdata)
{
// trackbar_ is initialized separatelly
}
~TrackbarCallbackWithData()
{
CV_LOG_DEBUG(NULL, "UI/Trackbar: Cleanup deprecated TrackbarCallbackWithData");
}
void onChange(int pos)
{
if (data_)
*data_ = pos;
if (callback_)
callback_(pos, userdata_);
}
static void onChangeCallback(int pos, void* userdata)
{
TrackbarCallbackWithData* thiz = (TrackbarCallbackWithData*)userdata;
CV_Assert(thiz);
return thiz->onChange(pos);
}
};
typedef std::vector< std::shared_ptr<TrackbarCallbackWithData> > TrackbarCallbacksWithData_t;
static TrackbarCallbacksWithData_t& getTrackbarCallbacksWithData()
{
static TrackbarCallbacksWithData_t g_trackbarCallbacksWithData;
return g_trackbarCallbacksWithData;
}
static void cleanupTrackbarCallbacksWithData_()
{
cv::AutoLock lock(cv::getWindowMutex());
auto& callbacks = getTrackbarCallbacksWithData();
for (auto it = callbacks.begin(); it != callbacks.end();)
{
const auto& cb = *it;
bool erase = (!cb || cb->trackbar_.expired());
if (erase)
{
it = callbacks.erase(it);
}
else
{
++it;
}
}
}
}} // namespace cv::impl
using namespace cv::impl;
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
static void deprecateNotFoundNoOpBehavior()
{
CV_LOG_ONCE_WARNING(NULL, "This no-op behavior is deprecated. Future versions of OpenCV will trigger exception in this case");
}
#define CV_NOT_FOUND_DEPRECATION deprecateNotFoundNoOpBehavior()
#endif
CV_IMPL void cvSetWindowProperty(const char* name, int prop_id, double prop_value)
{
CV_TRACE_FUNCTION();
CV_Assert(name);
{
auto window = findWindow_(name);
if (window)
{
/*bool res = */window->setProperty(prop_id, prop_value);
return;
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << name << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
switch(prop_id)
{
//change between fullscreen or not.
case cv::WND_PROP_FULLSCREEN:
if (prop_value != cv::WINDOW_NORMAL && prop_value != cv::WINDOW_FULLSCREEN) // bad argument
break;
#if defined (HAVE_QT)
cvSetModeWindow_QT(name,prop_value);
#elif defined(HAVE_WIN32UI)
cvSetModeWindow_W32(name,prop_value);
#elif defined (HAVE_GTK)
cvSetModeWindow_GTK(name,prop_value);
#elif defined (HAVE_COCOA)
cvSetModeWindow_COCOA(name,prop_value);
#elif defined (WINRT)
cvSetModeWindow_WinRT(name, prop_value);
#endif
break;
case cv::WND_PROP_AUTOSIZE:
#if defined (HAVE_QT)
cvSetPropWindow_QT(name,prop_value);
#endif
break;
case cv::WND_PROP_ASPECT_RATIO:
#if defined (HAVE_QT)
cvSetRatioWindow_QT(name,prop_value);
#endif
break;
case cv::WND_PROP_TOPMOST:
#if defined (HAVE_QT)
// nothing
#elif defined(HAVE_WIN32UI)
cvSetPropTopmost_W32(name, (prop_value != 0 ? true : false));
#elif defined(HAVE_COCOA)
cvSetPropTopmost_COCOA(name, (prop_value != 0 ? true : false));
#endif
break;
case cv::WND_PROP_VSYNC:
#if defined (HAVE_QT)
// nothing
#elif defined (HAVE_WIN32UI)
cvSetPropVsync_W32(name, (prop_value != 0));
#else
// not implemented yet for other toolkits
#endif
break;
default:;
}
#endif
}
/* return -1 if error */
CV_IMPL double cvGetWindowProperty(const char* name, int prop_id)
{
CV_TRACE_FUNCTION();
CV_Assert(name);
{
auto window = findWindow_(name);
if (window)
{
double v = window->getProperty(prop_id);
if (cvIsNaN(v))
return -1;
return v;
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << name << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return -1;
#else
switch(prop_id)
{
case cv::WND_PROP_FULLSCREEN:
#if defined (HAVE_QT)
return cvGetModeWindow_QT(name);
#elif defined(HAVE_WIN32UI)
return cvGetModeWindow_W32(name);
#elif defined (HAVE_GTK)
return cvGetModeWindow_GTK(name);
#elif defined (HAVE_COCOA)
return cvGetModeWindow_COCOA(name);
#elif defined (WINRT)
return cvGetModeWindow_WinRT(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_AUTOSIZE:
#if defined (HAVE_QT)
return cvGetPropWindow_QT(name);
#elif defined(HAVE_WIN32UI)
return cvGetPropWindowAutoSize_W32(name);
#elif defined (HAVE_GTK)
return cvGetPropWindowAutoSize_GTK(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_ASPECT_RATIO:
#if defined (HAVE_QT)
return cvGetRatioWindow_QT(name);
#elif defined(HAVE_WIN32UI)
return cvGetRatioWindow_W32(name);
#elif defined (HAVE_GTK)
return cvGetRatioWindow_GTK(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_OPENGL:
#if defined (HAVE_QT)
return cvGetOpenGlProp_QT(name);
#elif defined(HAVE_WIN32UI)
return cvGetOpenGlProp_W32(name);
#elif defined (HAVE_GTK)
return cvGetOpenGlProp_GTK(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_VISIBLE:
#if defined (HAVE_QT)
return cvGetPropVisible_QT(name);
#elif defined(HAVE_WIN32UI)
return cvGetPropVisible_W32(name);
#elif defined(HAVE_COCOA)
return cvGetPropVisible_COCOA(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_TOPMOST:
#if defined (HAVE_QT)
return -1;
#elif defined(HAVE_WIN32UI)
return cvGetPropTopmost_W32(name);
#elif defined(HAVE_COCOA)
return cvGetPropTopmost_COCOA(name);
#else
return -1;
#endif
break;
case cv::WND_PROP_VSYNC:
#if defined (HAVE_QT)
return -1;
#elif defined (HAVE_WIN32UI)
return cvGetPropVsync_W32(name);
#else
return -1;
#endif
break;
default:
return -1;
}
#endif
}
cv::Rect cv::getWindowImageRect(const String& winname)
{
CV_TRACE_FUNCTION();
CV_Assert(!winname.empty());
{
auto window = findWindow_(winname);
if (window)
{
return window->getImageRect();
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winname << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return Rect(-1, -1, -1, -1);
#else
#if defined (HAVE_QT)
return cvGetWindowRect_QT(winname.c_str());
#elif defined(HAVE_WIN32UI)
return cvGetWindowRect_W32(winname.c_str());
#elif defined (HAVE_GTK)
return cvGetWindowRect_GTK(winname.c_str());
#elif defined (HAVE_COCOA)
return cvGetWindowRect_COCOA(winname.c_str());
#elif defined (HAVE_WAYLAND)
return cvGetWindowRect_WAYLAND(winname.c_str());
#else
return Rect(-1, -1, -1, -1);
#endif
#endif
}
void cv::namedWindow( const String& winname, int flags )
{
CV_TRACE_FUNCTION();
CV_Assert(!winname.empty());
{
cv::AutoLock lock(cv::getWindowMutex());
cleanupClosedWindows_();
auto& windowsMap = getWindowsMap();
auto i = windowsMap.find(winname);
if (i != windowsMap.end())
{
auto ui_base = i->second;
if (ui_base)
{
auto window = std::dynamic_pointer_cast<UIWindow>(ui_base);
if (!window)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: Can't create window: '" << winname << "'");
}
return;
}
}
auto backend = getCurrentUIBackend();
if (backend)
{
auto window = backend->createWindow(winname, flags);
if (!window)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: Can't create window: '" << winname << "'");
return;
}
windowsMap.emplace(winname, window);
return;
}
}
cvNamedWindow( winname.c_str(), flags );
}
void cv::destroyWindow( const String& winname )
{
CV_TRACE_FUNCTION();
{
auto window = findWindow_(winname);
if (window)
{
window->destroy();
cleanupClosedWindows_();
return;
}
}
cvDestroyWindow( winname.c_str() );
}
void cv::destroyAllWindows()
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto backend = getCurrentUIBackend();
if (backend)
{
backend->destroyAllWindows();
cleanupClosedWindows_();
return;
}
}
cvDestroyAllWindows();
}
void cv::resizeWindow( const String& winname, int width, int height )
{
CV_TRACE_FUNCTION();
{
auto window = findWindow_(winname);
if (window)
{
return window->resize(width, height);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winname << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvResizeWindow( winname.c_str(), width, height );
#endif
}
void cv::resizeWindow(const String& winname, const cv::Size& size)
{
CV_TRACE_FUNCTION();
cvResizeWindow(winname.c_str(), size.width, size.height);
}
void cv::moveWindow( const String& winname, int x, int y )
{
CV_TRACE_FUNCTION();
{
auto window = findWindow_(winname);
if (window)
{
return window->move(x, y);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winname << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvMoveWindow( winname.c_str(), x, y );
#endif
}
void cv::setWindowTitle(const String& winname, const String& title)
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winname);
if (window)
{
return window->setTitle(title);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winname << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#elif defined(HAVE_WIN32UI)
return setWindowTitle_W32(winname, title);
#elif defined (HAVE_GTK)
return setWindowTitle_GTK(winname, title);
#elif defined (HAVE_QT)
return setWindowTitle_QT(winname, title);
#elif defined (HAVE_COCOA)
return setWindowTitle_COCOA(winname, title);
#elif defined (HAVE_WAYLAND)
return setWindowTitle_WAYLAND(winname, title);
#else
CV_Error(Error::StsNotImplemented, "The function is not implemented. "
"Rebuild the library with Windows, GTK+ 2.x or Cocoa support. "
"If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script");
#endif
}
void cv::setWindowProperty(const String& winname, int prop_id, double prop_value)
{
CV_TRACE_FUNCTION();
cvSetWindowProperty( winname.c_str(), prop_id, prop_value);
}
double cv::getWindowProperty(const String& winname, int prop_id)
{
CV_TRACE_FUNCTION();
return cvGetWindowProperty(winname.c_str(), prop_id);
}
int cv::waitKeyEx(int delay)
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto backend = getCurrentUIBackend();
if (backend)
{
return backend->waitKeyEx(delay);
}
}
return cvWaitKey(delay);
}
int cv::waitKey(int delay)
{
CV_TRACE_FUNCTION();
int code = waitKeyEx(delay);
#ifndef WINRT
static int use_legacy = -1;
if (use_legacy < 0)
{
use_legacy = utils::getConfigurationParameterBool("OPENCV_LEGACY_WAITKEY");
}
if (use_legacy > 0)
return code;
#endif
return (code != -1) ? (code & 0xff) : -1;
}
/*
* process until queue is empty but don't wait.
*/
int cv::pollKey()
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto backend = getCurrentUIBackend();
if (backend)
{
return backend->pollKey();
}
}
#if defined(HAVE_WIN32UI)
return pollKey_W32();
#else
// fallback. please implement a proper polling function
return cvWaitKey(1);
#endif
}
int cv::createTrackbar(const String& trackbarName, const String& winName,
int* value, int count, TrackbarCallback callback,
void* userdata)
{
CV_TRACE_FUNCTION();
CV_LOG_IF_WARNING(NULL, value, "UI/Trackbar(" << trackbarName << "@" << winName << "): Using 'value' pointer is unsafe and deprecated. Use NULL as value pointer. "
"To fetch trackbar value setup callback.");
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winName);
if (window)
{
if (value)
{
auto cb = std::make_shared<TrackbarCallbackWithData>(value, callback, userdata);
auto trackbar = window->createTrackbar(trackbarName, count, TrackbarCallbackWithData::onChangeCallback, cb.get());
if (!trackbar)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: Can't create trackbar: '" << trackbarName << "'@'" << winName << "'");
return 0;
}
cb->trackbar_ = trackbar;
getTrackbarCallbacksWithData().emplace_back(cb);
getWindowsMap().emplace(trackbar->getID(), trackbar);
trackbar->setPos(*value);
return 1;
}
else
{
auto trackbar = window->createTrackbar(trackbarName, count, callback, userdata);
if (!trackbar)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: Can't create trackbar: '" << trackbarName << "'@'" << winName << "'");
return 0;
}
getWindowsMap().emplace(trackbar->getID(), trackbar);
return 1;
}
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return 0;
#else
return cvCreateTrackbar2(trackbarName.c_str(), winName.c_str(),
value, count, callback, userdata);
#endif
}
void cv::setTrackbarPos( const String& trackbarName, const String& winName, int value )
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winName);
if (window)
{
auto trackbar = window->findTrackbar(trackbarName);
CV_Assert(trackbar);
return trackbar->setPos(value);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvSetTrackbarPos(trackbarName.c_str(), winName.c_str(), value );
#endif
}
void cv::setTrackbarMax(const String& trackbarName, const String& winName, int maxval)
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winName);
if (window)
{
auto trackbar = window->findTrackbar(trackbarName);
CV_Assert(trackbar);
Range old_range = trackbar->getRange();
Range range(std::min(old_range.start, maxval), maxval);
return trackbar->setRange(range);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvSetTrackbarMax(trackbarName.c_str(), winName.c_str(), maxval);
#endif
}
void cv::setTrackbarMin(const String& trackbarName, const String& winName, int minval)
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winName);
if (window)
{
auto trackbar = window->findTrackbar(trackbarName);
CV_Assert(trackbar);
Range old_range = trackbar->getRange();
Range range(minval, std::max(minval, old_range.end));
return trackbar->setRange(range);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvSetTrackbarMin(trackbarName.c_str(), winName.c_str(), minval);
#endif
}
int cv::getTrackbarPos( const String& trackbarName, const String& winName )
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(winName);
if (window)
{
auto trackbar = window->findTrackbar(trackbarName);
CV_Assert(trackbar);
return trackbar->getPos();
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << winName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return -1;
#else
return cvGetTrackbarPos(trackbarName.c_str(), winName.c_str());
#endif
}
void cv::setMouseCallback( const String& windowName, MouseCallback onMouse, void* param)
{
CV_TRACE_FUNCTION();
{
cv::AutoLock lock(cv::getWindowMutex());
auto window = findWindow_(windowName);
if (window)
{
return window->setMouseCallback(onMouse, param);
}
}
#if defined(OPENCV_HIGHGUI_WITHOUT_BUILTIN_BACKEND) && defined(ENABLE_PLUGINS)
auto backend = getCurrentUIBackend();
if (backend)
{
CV_LOG_WARNING(NULL, "Can't find window with name: '" << windowName << "'. Do nothing");
CV_NOT_FOUND_DEPRECATION;
}
else
{
CV_LOG_WARNING(NULL, "No UI backends available. Use OPENCV_LOG_LEVEL=DEBUG for investigation");
}
return;
#else
cvSetMouseCallback(windowName.c_str(), onMouse, param);
#endif
}
int cv::getMouseWheelDelta( int flags )
{
CV_TRACE_FUNCTION();
return CV_GET_WHEEL_DELTA(flags);
}
int cv::startWindowThread()
{
CV_TRACE_FUNCTION();
return cvStartWindowThread();
}
// OpenGL support
void cv::setOpenGlDrawCallback(const String& name, OpenGlDrawCallback callback, void* userdata)
{
CV_TRACE_FUNCTION();
cvSetOpenGlDrawCallback(name.c_str(), callback, userdata);
}
void cv::setOpenGlContext(const String& windowName)
{
CV_TRACE_FUNCTION();
cvSetOpenGlContext(windowName.c_str());
}
void cv::updateWindow(const String& windowName)
{
CV_TRACE_FUNCTION();
cvUpdateWindow(windowName.c_str());
}
#ifdef HAVE_OPENGL
namespace
{
std::map<cv::String, cv::ogl::Texture2D> wndTexs;
std::map<cv::String, cv::ogl::Texture2D> ownWndTexs;
std::map<cv::String, cv::ogl::Buffer> ownWndBufs;
void glDrawTextureCallback(void* userdata)
{
cv::ogl::Texture2D* texObj = static_cast<cv::ogl::Texture2D*>(userdata);
cv::ogl::render(*texObj);
}
}
#endif // HAVE_OPENGL
void cv::imshow( const String& winname, InputArray _img )
{
CV_TRACE_FUNCTION();
const Size size = _img.size();
CV_Assert(size.width>0 && size.height>0);
{
cv::AutoLock lock(cv::getWindowMutex());
cleanupClosedWindows_();
auto& windowsMap = getWindowsMap();
auto i = windowsMap.find(winname);
if (i != windowsMap.end())
{
auto ui_base = i->second;
if (ui_base)
{
auto window = std::dynamic_pointer_cast<UIWindow>(ui_base);
if (!window)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: invalid window name: '" << winname << "'");
}
return window->imshow(_img);
}
}
auto backend = getCurrentUIBackend();
if (backend)
{
auto window = backend->createWindow(winname, WINDOW_AUTOSIZE);
if (!window)
{
CV_LOG_ERROR(NULL, "OpenCV/UI: Can't create window: '" << winname << "'");
return;
}
windowsMap.emplace(winname, window);
return window->imshow(_img);
}
}
#ifndef HAVE_OPENGL
{
Mat img = _img.getMat();
CvMat c_img = cvMat(img);
cvShowImage(winname.c_str(), &c_img);
}
#else
const double useGl = getWindowProperty(winname, WND_PROP_OPENGL);
if (useGl <= 0)
{
Mat img = _img.getMat();
CvMat c_img = cvMat(img);
cvShowImage(winname.c_str(), &c_img);
}
else
{
const double autoSize = getWindowProperty(winname, WND_PROP_AUTOSIZE);
if (autoSize > 0)
{
resizeWindow(winname, size.width, size.height);
}
setOpenGlContext(winname);
cv::ogl::Texture2D& tex = ownWndTexs[winname];
if (_img.kind() == _InputArray::CUDA_GPU_MAT)
{
cv::ogl::Buffer& buf = ownWndBufs[winname];
buf.copyFrom(_img);
buf.setAutoRelease(false);
tex.copyFrom(buf);
tex.setAutoRelease(false);
}
else
{
tex.copyFrom(_img);
}
tex.setAutoRelease(false);
setOpenGlDrawCallback(winname, glDrawTextureCallback, &tex);
updateWindow(winname);
}
#endif
}
void cv::imshow(const String& winname, const ogl::Texture2D& _tex)
{
CV_TRACE_FUNCTION();
#ifndef HAVE_OPENGL
CV_UNUSED(winname);
CV_UNUSED(_tex);
CV_Error(cv::Error::OpenGlNotSupported, "The library is compiled without OpenGL support");
#else
const double useGl = getWindowProperty(winname, WND_PROP_OPENGL);
if (useGl <= 0)
{
CV_Error(cv::Error::OpenGlNotSupported, "The window was created without OpenGL context");
}
else
{
const double autoSize = getWindowProperty(winname, WND_PROP_AUTOSIZE);
if (autoSize > 0)
{
Size size = _tex.size();
resizeWindow(winname, size.width, size.height);
}
setOpenGlContext(winname);
cv::ogl::Texture2D& tex = wndTexs[winname];
tex = _tex;
tex.setAutoRelease(false);
setOpenGlDrawCallback(winname, glDrawTextureCallback, &tex);
updateWindow(winname);
}
#endif
}
const std::string cv::currentUIFramework()
{
CV_TRACE_FUNCTION();
// plugin and backend-compatible implementations
auto backend = getCurrentUIBackend();
if (backend)
{
return backend->getName();
}
// builtin backends
#if defined(HAVE_WIN32UI)
CV_Assert(false); // backend-compatible
#elif defined (HAVE_GTK)
CV_Assert(false); // backend-compatible
#elif defined (HAVE_QT)
return std::string("QT");
#elif defined (HAVE_COCOA)
return std::string("COCOA");
#elif defined (HAVE_WAYLAND)
return std::string("WAYLAND");
#else
return std::string();
#endif
}
// Without OpenGL
#ifndef HAVE_OPENGL
CV_IMPL void cvSetOpenGlDrawCallback(const char*, CvOpenGlDrawCallback, void*)
{
CV_Error(cv::Error::OpenGlNotSupported, "The library is compiled without OpenGL support");
}
CV_IMPL void cvSetOpenGlContext(const char*)
{
CV_Error(cv::Error::OpenGlNotSupported, "The library is compiled without OpenGL support");
}
CV_IMPL void cvUpdateWindow(const char*)
{
CV_Error(cv::Error::OpenGlNotSupported, "The library is compiled without OpenGL support");
}
#endif // !HAVE_OPENGL
#if defined (HAVE_QT)
cv::QtFont cv::fontQt(const String& nameFont, int pointSize, Scalar color, int weight, int style, int spacing)
{
CvFont f = cvFontQt(nameFont.c_str(), pointSize, cvScalar(color), weight, style, spacing);
void* pf = &f; // to suppress strict-aliasing
return *(cv::QtFont*)pf;
}
void cv::addText( const Mat& img, const String& text, Point org, const QtFont& font)
{
CvMat _img = cvMat(img);
cvAddText( &_img, text.c_str(), cvPoint(org), (CvFont*)&font);
}
void cv::addText( const Mat& img, const String& text, Point org, const String& nameFont,
int pointSize, Scalar color, int weight, int style, int spacing)
{
CvFont f = cvFontQt(nameFont.c_str(), pointSize, cvScalar(color), weight, style, spacing);
CvMat _img = cvMat(img);
cvAddText( &_img, text.c_str(), cvPoint(org), &f);
}
void cv::displayStatusBar(const String& name, const String& text, int delayms)
{
cvDisplayStatusBar(name.c_str(),text.c_str(), delayms);
}
void cv::displayOverlay(const String& name, const String& text, int delayms)
{
cvDisplayOverlay(name.c_str(),text.c_str(), delayms);
}
int cv::startLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[])
{
return cvStartLoop(pt2Func, argc, argv);
}
void cv::stopLoop()
{
cvStopLoop();
}
void cv::saveWindowParameters(const String& windowName)
{
cvSaveWindowParameters(windowName.c_str());
}
void cv::loadWindowParameters(const String& windowName)
{
cvLoadWindowParameters(windowName.c_str());
}
int cv::createButton(const String& button_name, ButtonCallback on_change, void* userdata, int button_type , bool initial_button_state )
{
return cvCreateButton(button_name.c_str(), on_change, userdata, button_type , initial_button_state );
}
#else
static const char* NO_QT_ERR_MSG = "The library is compiled without QT support";
cv::QtFont cv::fontQt(const String&, int, Scalar, int, int, int)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::addText( const Mat&, const String&, Point, const QtFont&)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::addText(const Mat&, const String&, Point, const String&, int, Scalar, int, int, int)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::displayStatusBar(const String&, const String&, int)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::displayOverlay(const String&, const String&, int )
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
int cv::startLoop(int (*)(int argc, char *argv[]), int , char**)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::stopLoop()
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::saveWindowParameters(const String&)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
void cv::loadWindowParameters(const String&)
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
int cv::createButton(const String&, ButtonCallback, void*, int , bool )
{
CV_Error(cv::Error::StsNotImplemented, NO_QT_ERR_MSG);
}
#endif
#if defined (HAVE_WIN32UI) // see window_w32.cpp
#elif defined (HAVE_GTK) // see window_gtk.cpp
#elif defined (HAVE_COCOA) // see window_cocoa.mm
#elif defined (HAVE_QT) // see window_QT.cpp
#elif defined (HAVE_WAYLAND) // see window_wayland.cpp
#elif defined (WINRT) && !defined (WINRT_8_0) // see window_winrt.cpp
#else
// No windowing system present at compile time ;-(
//
// We will build place holders that don't break the API but give an error
// at runtime. This way people can choose to replace an installed HighGUI
// version with a more capable one without a need to recompile dependent
// applications or libraries.
#define CV_NO_GUI_ERROR(funcname) \
cv::error(cv::Error::StsError, \
"The function is not implemented. " \
"Rebuild the library with Windows, GTK+ 2.x or Cocoa support. "\
"If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script", \
funcname, __FILE__, __LINE__)
CV_IMPL int cvNamedWindow( const char*, int )
{
CV_NO_GUI_ERROR("cvNamedWindow");
}
CV_IMPL void cvDestroyWindow( const char* )
{
CV_NO_GUI_ERROR( "cvDestroyWindow" );
}
CV_IMPL void
cvDestroyAllWindows( void )
{
CV_NO_GUI_ERROR( "cvDestroyAllWindows" );
}
CV_IMPL void
cvShowImage( const char*, const CvArr* )
{
CV_NO_GUI_ERROR( "cvShowImage" );
}
CV_IMPL void cvResizeWindow( const char*, int, int )
{
CV_NO_GUI_ERROR( "cvResizeWindow" );
}
CV_IMPL void cvMoveWindow( const char*, int, int )
{
CV_NO_GUI_ERROR( "cvMoveWindow" );
}
CV_IMPL int
cvCreateTrackbar( const char*, const char*,
int*, int, CvTrackbarCallback )
{
CV_NO_GUI_ERROR( "cvCreateTrackbar" );
}
CV_IMPL int
cvCreateTrackbar2( const char* /*trackbar_name*/, const char* /*window_name*/,
int* /*val*/, int /*count*/, CvTrackbarCallback2 /*on_notify2*/,
void* /*userdata*/ )
{
CV_NO_GUI_ERROR( "cvCreateTrackbar2" );
}
CV_IMPL void
cvSetMouseCallback( const char*, CvMouseCallback, void* )
{
CV_NO_GUI_ERROR( "cvSetMouseCallback" );
}
CV_IMPL int cvGetTrackbarPos( const char*, const char* )
{
CV_NO_GUI_ERROR( "cvGetTrackbarPos" );
}
CV_IMPL void cvSetTrackbarPos( const char*, const char*, int )
{
CV_NO_GUI_ERROR( "cvSetTrackbarPos" );
}
CV_IMPL void cvSetTrackbarMax(const char*, const char*, int)
{
CV_NO_GUI_ERROR( "cvSetTrackbarMax" );
}
CV_IMPL void cvSetTrackbarMin(const char*, const char*, int)
{
CV_NO_GUI_ERROR( "cvSetTrackbarMin" );
}
CV_IMPL void* cvGetWindowHandle( const char* )
{
CV_NO_GUI_ERROR( "cvGetWindowHandle" );
}
CV_IMPL const char* cvGetWindowName( void* )
{
CV_NO_GUI_ERROR( "cvGetWindowName" );
}
CV_IMPL int cvWaitKey( int )
{
CV_NO_GUI_ERROR( "cvWaitKey" );
}
CV_IMPL int cvInitSystem( int , char** )
{
CV_NO_GUI_ERROR( "cvInitSystem" );
}
CV_IMPL int cvStartWindowThread()
{
CV_NO_GUI_ERROR( "cvStartWindowThread" );
}
//-------- Qt ---------
CV_IMPL void cvAddText( const CvArr*, const char*, CvPoint , CvFont* )
{
CV_NO_GUI_ERROR("cvAddText");
}
CV_IMPL void cvDisplayStatusBar(const char* , const char* , int )
{
CV_NO_GUI_ERROR("cvDisplayStatusBar");
}
CV_IMPL void cvDisplayOverlay(const char* , const char* , int )
{
CV_NO_GUI_ERROR("cvNamedWindow");
}
CV_IMPL int cvStartLoop(int (*)(int argc, char *argv[]), int , char* argv[])
{
CV_UNUSED(argv);
CV_NO_GUI_ERROR("cvStartLoop");
}
CV_IMPL void cvStopLoop()
{
CV_NO_GUI_ERROR("cvStopLoop");
}
CV_IMPL void cvSaveWindowParameters(const char* )
{
CV_NO_GUI_ERROR("cvSaveWindowParameters");
}
// CV_IMPL void cvLoadWindowParameterss(const char* name)
// {
// CV_NO_GUI_ERROR("cvLoadWindowParameters");
// }
CV_IMPL int cvCreateButton(const char*, void (*)(int, void*), void*, int, int)
{
CV_NO_GUI_ERROR("cvCreateButton");
}
#endif
/* End of file. */
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