我在 TouchGFX Designer 上创建了一个基本项目,并使用 touchgfx 库在我自己的 cpp 文件中编写了一个函数。我希望当单击按钮时,从我自己的 cpp 文件中调用 ScreenView.cpp 或 ScreenViewBase.cpp 的函数并更改框的颜色。
这是我的 cpp 文件。
#include <touchgfx/Color.hpp>
#include <touchgfx/widgets/Box.hpp>
#include <gui/screen1_screen/Screen1View.hpp>
#include <gui/screen1_screen/Screen1Presenter.hpp>
#include <touchgfx/widgets/Box.hpp>
ChangeColor::ChangeColor()
{
Screen1View::box1;
box1.setColor(touchgfx::Color::getColorFrom24BitRGB(51, 168, 35));
box1.invalidate();
}
这是我要调用函数的 Screen1View.cpp。
#include<gui/ChangeColor.hpp>
#include <touchgfx/Color.hpp>
Screen1View::Screen1View():
buttonCallback(this, &Screen1View::buttonCallbackHandler)
{
}
void Screen1View::setupScreen()
{
Screen1ViewBase::setupScreen();
button1.setAction(buttonCallback);
}
void Screen1View::tearDownScreen()
{
Screen1ViewBase::tearDownScreen();
}
void Screen1View::buttonCallbackHandler(const touchgfx::AbstractButton& src)
{
if (&src == &button1)
{
//Interaction1
//When button1 clicked execute C++ code
//Execute C++ code
//ChangeColor();
ChangeColor();
}
}
这是声明该框的 Screen1BaseView.hpp
#define SCREEN1VIEWBASE_HPP
#include <gui/common/FrontendApplication.hpp>
#include <mvp/View.hpp>
#include <gui/screen1_screen/Screen1Presenter.hpp>
#include <touchgfx/widgets/Box.hpp>
#include <touchgfx/widgets/Button.hpp>
class Screen1ViewBase : public touchgfx::View<Screen1Presenter>
{
public:
Screen1ViewBase();
virtual ~Screen1ViewBase() {}
virtual void setupScreen();
protected:
FrontendApplication& application() {
return *static_cast<FrontendApplication*>(touchgfx::Application::getInstance());
}
/*
* Member Declarations
*/
touchgfx::Box __background;
touchgfx::Box box1;
touchgfx::Button button1;
private:
};
我无法访问该框。有办法吗?