Line data    Source code

       1             : /**
       2             :  Copyright (c) 2024 Stappler LLC <admin@stappler.dev>
       3             : 
       4             :  Permission is hereby granted, free of charge, to any person obtaining a copy
       5             :  of this software and associated documentation files (the "Software"), to deal
       6             :  in the Software without restriction, including without limitation the rights
       7             :  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       8             :  copies of the Software, and to permit persons to whom the Software is
       9             :  furnished to do so, subject to the following conditions:
      10             : 
      11             :  The above copyright notice and this permission notice shall be included in
      12             :  all copies or substantial portions of the Software.
      13             : 
      14             :  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      15             :  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      16             :  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      17             :  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      18             :  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      19             :  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      20             :  THE SOFTWARE.
      21             :  **/
      22             : 
      23             : #ifndef XENOLITH_RENDERER_BASIC2D_XL2DLINEARGRADIENT_H_
      24             : #define XENOLITH_RENDERER_BASIC2D_XL2DLINEARGRADIENT_H_
      25             : 
      26             : #include "XL2d.h"
      27             : 
      28             : namespace STAPPLER_VERSIONIZED stappler::xenolith::basic2d {
      29             : 
      30             : struct GradientStep {
      31             :         float value = 0.0f;
      32             :         float factor = 0.0f;
      33             :         Color4F color = Color4F::WHITE;
      34             : 
      35             :         GradientStep() = default;
      36             :         GradientStep(float v, Color4F c) : value(v), color(c) { }
      37         600 :         GradientStep(float v, float f, Color4F c) : value(v), factor(f), color(c) { }
      38             : 
      39             :         GradientStep(const GradientStep &) = default;
      40             :         GradientStep &operator=(const GradientStep &) = default;
      41             : };
      42             : 
      43             : struct LinearGradientData : public Ref {
      44        1500 :         virtual ~LinearGradientData() = default;
      45             : 
      46             :         Vec2 start;
      47             :         Vec2 end;
      48             :         Vector<GradientStep> steps;
      49             : 
      50         750 :         LinearGradientData() = default;
      51             :         LinearGradientData(const LinearGradientData &);
      52             :         LinearGradientData(LinearGradientData &&);
      53             : };
      54             : 
      55             : class LinearGradient : public Ref {
      56             : public:
      57         300 :         virtual ~LinearGradient() = default;
      58             : 
      59             :         // start and end in node space
      60             :         bool init(const Vec2 &start, const Vec2 &end, Vector<GradientStep> &&);
      61             :         bool init(const Vec2 &origin, float angle, float distance, Vector<GradientStep> &&);
      62             : 
      63             :         bool updateWithData(const Vec2 &start, const Vec2 &end, Vector<GradientStep> &&);
      64             :         bool updateWithData(const Vec2 &origin, float angle, float distance, Vector<GradientStep> &&);
      65             : 
      66             :         const Vec2 &getStart() const;
      67             :         const Vec2 &getEnd() const;
      68             : 
      69             :         const Vector<GradientStep> &getSteps() const;
      70             : 
      71             :         // pop data, mark for copy on write
      72             :         // user should not modify data
      73             :         Rc<LinearGradientData> pop();
      74             : 
      75             :         // duplicate data, user can modify new data
      76             :         Rc<LinearGradientData> dup();
      77             : 
      78             : protected:
      79             :         void copy();
      80             : 
      81             :         bool _copyOnWrite = false;
      82             :         Rc<LinearGradientData> _data;
      83             : };
      84             : 
      85             : }
      86             : 
      87             : #endif /* XENOLITH_RENDERER_BASIC2D_XL2DDYNAMICLINEARGRADIENT_H_ */