| // Copyright 2022 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| #include "pw_touchscreen/touchscreen.h" |
| |
| #include <Arduino.h> |
| |
| #include <cinttypes> |
| |
| #include "XPT2046_Touchscreen.h" |
| #include "pw_math/vector3.h" |
| |
| namespace pw::touchscreen { |
| namespace { |
| |
| constexpr int TS_CS = 7; |
| constexpr int kTouchscreenMinX = 288; |
| constexpr int kTouchscreenMaxX = 3715; |
| constexpr int kTouchscreenMinY = 350; |
| constexpr int kTouchscreenMaxY = 3800; |
| |
| constexpr int ScreenPixelWidth = 320; |
| constexpr int ScreenPixelHeight = 240; |
| |
| XPT2046_Touchscreen touch_screen(TS_CS); |
| |
| } // namespace |
| |
| void Init() { touch_screen.begin(); } |
| |
| bool Available() { return true; } |
| |
| bool NewTouchEvent() { return touch_screen.touched(); } |
| |
| pw::math::Vector3<int> GetTouchPoint() { |
| pw::math::Vector3<int> point; |
| TS_Point p = touch_screen.getPoint(); |
| point.x = map(p.x, kTouchscreenMinX, kTouchscreenMaxX, 0, ScreenPixelWidth); |
| point.y = map(p.y, kTouchscreenMinY, kTouchscreenMaxY, 0, ScreenPixelHeight); |
| point.z = p.z; |
| return point; |
| } |
| |
| } // namespace pw::touchscreen |