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Feature: Slider in any directions. (#468)

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Add the `SliderOption` option supporting:
```cpp
{
  Ref<T> value;
  ConstRef<T> min = T(0);
  ConstRef<T> max = T(100);
  ConstRef<T> increment = (max() - min()) / 20;
  GaugeDirection direction = GaugeDirection::Right;
  Color color_active = Color::White;
  Color color_inactive = Color::GrayDark;
};
```

In particular, this supports multiple direction. This resolves:
https://github.com/ArthurSonzogni/FTXUI/issues/467

This one do not support adding a label. The old constructors can still
be used to have a label.
This commit is contained in:
Arthur Sonzogni
2022-08-30 18:52:33 +02:00
committed by GitHub
parent 8226c5aea7
commit b3ba747d82
19 changed files with 452 additions and 77 deletions
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136
src/ftxui/component/slider_test.cpp Normal file
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#include <gtest/gtest.h> // for AssertionResult, Message, TestPartResult, Test, EXPECT_TRUE, EXPECT_EQ, SuiteApiResolver, TestInfo (ptr only), EXPECT_FALSE, TEST, TestFactoryImpl
#include <ftxui/component/mouse.hpp> // for Mouse, Mouse::Left, Mouse::Pressed, Mouse::Released
#include <ftxui/dom/elements.hpp> // for GaugeDirection, GaugeDirection::Down, GaugeDirection::Left, GaugeDirection::Right, GaugeDirection::Up
#include <memory> // for __shared_ptr_access, shared_ptr, allocator
#include "ftxui/component/component.hpp" // for Slider
#include "ftxui/component/component_base.hpp" // for ComponentBase
#include "ftxui/component/event.hpp" // for Event
#include "ftxui/dom/node.hpp" // for Render
#include "ftxui/screen/screen.hpp" // for Screen
namespace ftxui {
namespace {
Event MousePressed(int x, int y) {
Mouse mouse;
mouse.button = Mouse::Left;
mouse.motion = Mouse::Pressed;
mouse.shift = false;
mouse.meta = false;
mouse.control = false;
mouse.x = x;
mouse.y = y;
return Event::Mouse("jjj", mouse);
}
Event MouseReleased(int x, int y) {
Mouse mouse;
mouse.button = Mouse::Left;
mouse.motion = Mouse::Released;
mouse.shift = false;
mouse.meta = false;
mouse.control = false;
mouse.x = x;
mouse.y = y;
return Event::Mouse("jjj", mouse);
}
} // namespace
TEST(SliderTest, Right) {
int value = 50;
auto slider = Slider<int>({
.value = &value,
.min = 0,
.max = 100,
.increment = 10,
.direction = GaugeDirection::Right,
});
Screen screen(11, 1);
Render(screen, slider->Render());
EXPECT_TRUE(slider->OnEvent(MousePressed(3, 0)));
EXPECT_EQ(value, 30);
EXPECT_TRUE(slider->OnEvent(MousePressed(9, 0)));
EXPECT_EQ(value, 90);
EXPECT_TRUE(slider->OnEvent(MousePressed(9, 2)));
EXPECT_EQ(value, 90);
EXPECT_TRUE(slider->OnEvent(MousePressed(5, 2)));
EXPECT_EQ(value, 50);
EXPECT_TRUE(slider->OnEvent(MouseReleased(5, 2)));
EXPECT_FALSE(slider->OnEvent(MousePressed(5, 2)));
}
TEST(SliderTest, Left) {
int value = 50;
auto slider = Slider<int>({
.value = &value,
.min = 0,
.max = 100,
.increment = 10,
.direction = GaugeDirection::Left,
});
Screen screen(11, 1);
Render(screen, slider->Render());
EXPECT_TRUE(slider->OnEvent(MousePressed(3, 0)));
EXPECT_EQ(value, 70);
EXPECT_TRUE(slider->OnEvent(MousePressed(9, 0)));
EXPECT_EQ(value, 10);
EXPECT_TRUE(slider->OnEvent(MousePressed(9, 2)));
EXPECT_EQ(value, 10);
EXPECT_TRUE(slider->OnEvent(MousePressed(5, 2)));
EXPECT_EQ(value, 50);
EXPECT_TRUE(slider->OnEvent(MouseReleased(5, 2)));
EXPECT_FALSE(slider->OnEvent(MousePressed(5, 2)));
}
TEST(SliderTest, Down) {
int value = 50;
auto slider = Slider<int>({
.value = &value,
.min = 0,
.max = 100,
.increment = 10,
.direction = GaugeDirection::Down,
});
Screen screen(1, 11);
Render(screen, slider->Render());
EXPECT_TRUE(slider->OnEvent(MousePressed(0, 3)));
EXPECT_EQ(value, 30);
EXPECT_TRUE(slider->OnEvent(MousePressed(0, 9)));
EXPECT_EQ(value, 90);
EXPECT_TRUE(slider->OnEvent(MousePressed(2, 9)));
EXPECT_EQ(value, 90);
EXPECT_TRUE(slider->OnEvent(MousePressed(2, 5)));
EXPECT_EQ(value, 50);
EXPECT_TRUE(slider->OnEvent(MouseReleased(2, 5)));
EXPECT_FALSE(slider->OnEvent(MousePressed(2, 5)));
}
TEST(SliderTest, Up) {
int value = 50;
auto slider = Slider<int>({
.value = &value,
.min = 0,
.max = 100,
.increment = 10,
.direction = GaugeDirection::Up,
});
Screen screen(1, 11);
Render(screen, slider->Render());
EXPECT_TRUE(slider->OnEvent(MousePressed(0, 3)));
EXPECT_EQ(value, 70);
EXPECT_TRUE(slider->OnEvent(MousePressed(0, 9)));
EXPECT_EQ(value, 10);
EXPECT_TRUE(slider->OnEvent(MousePressed(2, 9)));
EXPECT_EQ(value, 10);
EXPECT_TRUE(slider->OnEvent(MousePressed(2, 5)));
EXPECT_EQ(value, 50);
EXPECT_TRUE(slider->OnEvent(MouseReleased(2, 5)));
EXPECT_FALSE(slider->OnEvent(MousePressed(2, 5)));
}
} // namespace ftxui
// Copyright 2022 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.