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119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
#ifndef _SCROLLWIDGET_H
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#define _SCROLLWIDGET_H
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#include "widget/IWidget.h"
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#include "animations/IAnimation.h"
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#include <vector>
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typedef std::vector<IWidget*> WidgetList;
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class ScrollWidget;
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class AnimationManager;
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typedef struct ScrollWidgetStyle
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{
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// it defines the amount of pixels we should scroll when the analog stick or dpad is used.
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uint8_t scrollStep;
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} ScrollWidgetStyle;
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/**
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* @brief This Animation implementation is used internal in ScrollWidget
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* to move the "view window"'s x and y-coordinates.
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*
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* It's specific to the ScrollWidget
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*/
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class MoveScrollWidgetWindowAnimation : public AbstractAnimation
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{
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public:
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MoveScrollWidgetWindowAnimation(ScrollWidget* list);
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virtual ~MoveScrollWidgetWindowAnimation();
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AnimationDistanceTimeFunctionType getDistanceTimeFunctionType() const override;
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uint32_t getDurationInMs() const override;
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void start(const Point& startPoint, const Point& endPoint);
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void extend(const Point& endPoint);
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protected:
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void apply(float pos) override;
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private:
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Point calculatePoint(float pos);
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ScrollWidget* list_;
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Point windowStartPoint_;
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Point windowEndPoint_;
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};
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/**
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* @brief This is a widget that contains other widgets and can scroll through it.
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* It differs from VerticalList in that ScrollWidget manages "unstructured" widgets instead of just a list in a certain direction.
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*
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* But this scroll widget does not allow you to select a widget and/or handle events on it. Every widget added will remain unfocused and won't handle keys
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* display only.
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*
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*/
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class ScrollWidget : public IWidget
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{
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public:
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ScrollWidget(AnimationManager& animManager);
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virtual ~ScrollWidget();
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bool isFocused() const override;
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void setFocused(bool isFocused) override;
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bool isVisible() const override;
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void setVisible(bool visible) override;
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Rectangle getBounds() const override;
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void setBounds(const Rectangle& bounds) override;
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Dimensions getSize() const override;
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void setStyle(const ScrollWidgetStyle& style);
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void addWidget(IWidget* widget);
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void removeWidget(IWidget* widget);
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void clearWidgets();
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bool handleUserInput(const joypad_inputs_t& userInput) override;
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void render(RDPQGraphics& gfx, const Rectangle& parentBounds) override;
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/**
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* @brief Sets the view window start xy coords.
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* This is used by MoveScrollWidgetWindowAnimation
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*/
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void setWindowStart(const Point& windowStart);
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/**
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* @brief Indicates the percentage at which the current window position is at horizontally
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* in relation to the entire window
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*/
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float getWindowProgressX() const;
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/**
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* @brief Indicates the percentage at which the current window position is at vertically
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* in relation to the entire window
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*/
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float getWindowProgressY() const;
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protected:
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private:
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/**
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* @brief This function will grow the maximum dimensions of the window
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* based on the specified IWidget
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*/
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void growWindow(IWidget* widget);
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/**
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* @brief Recalculates the entire width and height of the view window
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* This is necessary when removing a widget
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*/
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void recalculateWindowSize();
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MoveScrollWidgetWindowAnimation windowAnimation_;
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WidgetList widgets_;
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ScrollWidgetStyle style_;
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AnimationManager& animManager_;
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Rectangle bounds_;
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Rectangle windowBounds_;
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bool visible_;
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bool focused_;
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};
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#endif |