122 lines
No EOL
2.9 KiB
C++
122 lines
No EOL
2.9 KiB
C++
#pragma once
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#include "SpringAnimations.hpp"
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#include "LayoutPolicies.hpp"
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#include "EventHandler.hpp"
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#include "Graphics.hpp"
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#include <vector>
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namespace tp {
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class WidgetManagerInterface;
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class Widget {
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friend class RootWidget;
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public:
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Widget();
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virtual ~Widget() = default;
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void setDebug(const char* name, RGBA col) {
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mName = name;
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mDebugColor = col;
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}
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void addChild(Widget* child);
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void removeChild(Widget* child);
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WidgetManagerInterface* getRoot();
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void triggerWidgetUpdate(const char* reason = nullptr);
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void bringToFront();
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void bringToBack();
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void setSizePolicy(SizePolicy x, SizePolicy y);
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void setLayoutPolicy(LayoutPolicy layoutPolicy);
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const Vec2F& getMinSize();
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void setMinSize(const Vec2F& size);
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public:
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virtual void process(const EventHandler& events) {}
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virtual void draw(Canvas& canvas) {}
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virtual void drawOverlay(Canvas& canvas) {}
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virtual void mouseEnter();
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virtual void mouseLeave();
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// size policies
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virtual void pickRect();
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virtual void clampRect();
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virtual void adjustChildrenRect();
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// resizing
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RangeF pickRange(const RangeF& current, const RangeF& children, const RangeF& parent, bool vertical);
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RangeF clampRange(const RangeF& current, const RangeF& children, const RangeF& parent, bool vertical);
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void clampMinMaxSize();
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RectF getChildrenEnclosure() const;
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RectF getParentEnclosure();
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void adjustLayout(bool vertical);
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halnf changeChildSize(Widget*, halnf diff, bool vertical);
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[[nodiscard]] virtual bool processesEvents() const;
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[[nodiscard]] virtual bool propagateEventsToChildren() const;
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[[nodiscard]] virtual bool needsNextFrame() const;
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virtual void endAnimations();
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virtual void updateAnimations();
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public:
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[[nodiscard]] RectF getArea() const;
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[[nodiscard]] RectF getAreaT() const;
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[[nodiscard]] const RectF& getAreaCache() const;
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[[nodiscard]] RectF getRelativeArea() const;
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[[nodiscard]] RectF getRelativeAreaT() const;
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[[nodiscard]] RectF getRelativeAreaCache() const;
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void setArea(const RectF& area);
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void setAreaCache(const RectF& area);
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protected:
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friend class WidgetLayout;
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Widget* mParent = nullptr;
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std::vector<Widget*> mChildren;
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List<Widget*> mDepthOrder;
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// relative to the parent
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SpringRect mArea;
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// resizing
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LayoutPolicy mLayoutPolicy = LayoutPolicy::Passive;
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Vec2<SizePolicy> mSizePolicy = { SizePolicy::Fixed, SizePolicy::Fixed };
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Vec2F mMinSize = { 50, 50 };
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Vec2F mMaxSize = { FLT_MAX / 2, FLT_MAX / 2 };
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bool mInFocus = false;
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halnf mLayoutGap = 5;
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halnf mLayoutMargin = 10;
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// cache
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RectF mAreaCache;
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// debug
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std::string mName = "widget base";
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Vec2F mLocalPoint;
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Vec2F mGlobalPoint;
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RGBA mDebugColor = { 1, 1, 1, 0.3 };
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std::string mTriggerReason = "none";
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};
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struct WidgetManagerInterface : public Widget {
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virtual void updateWidget(Widget*, const char* reason = nullptr) = 0;
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};
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} |