mirror of https://github.com/minetest/minetest.git
281 lines
8.5 KiB
C++
281 lines
8.5 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#pragma once
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#include <IGUIStaticText.h>
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#include "irrlicht_changes/static_text.h"
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#include "IGUIButton.h"
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#include "IGUISpriteBank.h"
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#include "ITexture.h"
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#include "SColor.h"
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#include "guiSkin.h"
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#include "StyleSpec.h"
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using namespace irr;
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class ISimpleTextureSource;
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class GUIButton : public gui::IGUIButton
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{
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public:
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//! constructor
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GUIButton(gui::IGUIEnvironment* environment, gui::IGUIElement* parent,
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s32 id, core::rect<s32> rectangle, ISimpleTextureSource *tsrc,
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bool noclip=false);
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//! destructor
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virtual ~GUIButton();
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//! called if an event happened.
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virtual bool OnEvent(const SEvent& event) override;
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//! draws the element and its children
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virtual void draw() override;
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//! sets another skin independent font. if this is set to zero, the button uses the font of the skin.
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virtual void setOverrideFont(gui::IGUIFont* font=0) override;
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//! Gets the override font (if any)
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virtual gui::IGUIFont* getOverrideFont() const override;
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//! Get the font which is used right now for drawing
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virtual gui::IGUIFont* getActiveFont() const override;
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//! Sets another color for the button text.
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virtual void setOverrideColor(video::SColor color) override;
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//! Gets the override color
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virtual video::SColor getOverrideColor() const override;
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//! Gets the currently used text color
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virtual video::SColor getActiveColor() const override;
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//! Sets if the button text should use the override color or the color in the gui skin.
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virtual void enableOverrideColor(bool enable) override;
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//! Checks if an override color is enabled
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virtual bool isOverrideColorEnabled(void) const override;
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// PATCH
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//! Sets an image which should be displayed on the button when it is in the given state.
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virtual void setImage(gui::EGUI_BUTTON_IMAGE_STATE state,
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video::ITexture* image=nullptr,
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const core::rect<s32>& sourceRect=core::rect<s32>(0,0,0,0)) override;
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//! Sets an image which should be displayed on the button when it is in normal state.
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virtual void setImage(video::ITexture* image=nullptr) override;
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//! Sets an image which should be displayed on the button when it is in normal state.
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virtual void setImage(video::ITexture* image, const core::rect<s32>& pos) override;
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//! Sets an image which should be displayed on the button when it is in pressed state.
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virtual void setPressedImage(video::ITexture* image=nullptr) override;
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//! Sets an image which should be displayed on the button when it is in pressed state.
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virtual void setPressedImage(video::ITexture* image, const core::rect<s32>& pos) override;
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//! Sets the text displayed by the button
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virtual void setText(const wchar_t* text) override;
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// END PATCH
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//! Sets the sprite bank used by the button
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virtual void setSpriteBank(gui::IGUISpriteBank* bank=0) override;
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//! Sets the animated sprite for a specific button state
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/** \param index: Number of the sprite within the sprite bank, use -1 for no sprite
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\param state: State of the button to set the sprite for
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\param index: The sprite number from the current sprite bank
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\param color: The color of the sprite
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*/
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virtual void setSprite(gui::EGUI_BUTTON_STATE state, s32 index,
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video::SColor color=video::SColor(255,255,255,255),
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bool loop=false, bool scale=false) override;
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//! Get the sprite-index for the given state or -1 when no sprite is set
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virtual s32 getSpriteIndex(gui::EGUI_BUTTON_STATE state) const override;
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//! Get the sprite color for the given state. Color is only used when a sprite is set.
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virtual video::SColor getSpriteColor(gui::EGUI_BUTTON_STATE state) const override;
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//! Returns if the sprite in the given state does loop
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virtual bool getSpriteLoop(gui::EGUI_BUTTON_STATE state) const override;
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//! Returns if the sprite in the given state is scaled
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virtual bool getSpriteScale(gui::EGUI_BUTTON_STATE state) const override;
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//! Sets if the button should behave like a push button. Which means it
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//! can be in two states: Normal or Pressed. With a click on the button,
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//! the user can change the state of the button.
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virtual void setIsPushButton(bool isPushButton=true) override;
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//! Checks whether the button is a push button
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virtual bool isPushButton() const override;
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//! Sets the pressed state of the button if this is a pushbutton
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virtual void setPressed(bool pressed=true) override;
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//! Returns if the button is currently pressed
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virtual bool isPressed() const override;
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// PATCH
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//! Returns if this element (or one of its direct children) is hovered
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bool isHovered() const;
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//! Returns if this element (or one of its direct children) is focused
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bool isFocused() const;
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// END PATCH
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//! Sets if the button should use the skin to draw its border
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virtual void setDrawBorder(bool border=true) override;
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//! Checks if the button face and border are being drawn
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virtual bool isDrawingBorder() const override;
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//! Sets if the alpha channel should be used for drawing images on the button (default is false)
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virtual void setUseAlphaChannel(bool useAlphaChannel=true) override;
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//! Checks if the alpha channel should be used for drawing images on the button
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virtual bool isAlphaChannelUsed() const override;
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//! Sets if the button should scale the button images to fit
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virtual void setScaleImage(bool scaleImage=true) override;
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//! Checks whether the button scales the used images
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virtual bool isScalingImage() const override;
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//! Get if the shift key was pressed in last EGET_BUTTON_CLICKED event
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virtual bool getClickShiftState() const override
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{
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return ClickShiftState;
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}
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//! Get if the control key was pressed in last EGET_BUTTON_CLICKED event
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virtual bool getClickControlState() const override
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{
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return ClickControlState;
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}
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void setColor(video::SColor color);
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// PATCH
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//! Set element properties from a StyleSpec corresponding to the button state
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void setFromState();
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//! Set element properties from a StyleSpec
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virtual void setFromStyle(const StyleSpec& style);
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//! Set the styles used for each state
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void setStyles(const std::array<StyleSpec, StyleSpec::NUM_STATES>& styles);
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// END PATCH
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//! Do not drop returned handle
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static GUIButton* addButton(gui::IGUIEnvironment *environment,
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const core::rect<s32>& rectangle, ISimpleTextureSource *tsrc,
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IGUIElement* parent, s32 id, const wchar_t* text,
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const wchar_t *tooltiptext=L"");
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protected:
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void drawSprite(gui::EGUI_BUTTON_STATE state, u32 startTime, const core::position2di& center);
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gui::EGUI_BUTTON_IMAGE_STATE getImageState(bool pressed) const;
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ISimpleTextureSource *getTextureSource() { return TSrc; }
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struct ButtonImage
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{
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ButtonImage() = default;
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ButtonImage(const ButtonImage& other)
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{
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*this = other;
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}
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~ButtonImage()
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{
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if ( Texture )
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Texture->drop();
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}
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ButtonImage& operator=(const ButtonImage& other)
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{
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if ( this == &other )
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return *this;
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if (other.Texture)
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other.Texture->grab();
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if ( Texture )
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Texture->drop();
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Texture = other.Texture;
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SourceRect = other.SourceRect;
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return *this;
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}
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bool operator==(const ButtonImage& other) const
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{
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return Texture == other.Texture && SourceRect == other.SourceRect;
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}
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video::ITexture* Texture = nullptr;
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core::rect<s32> SourceRect = core::rect<s32>(0,0,0,0);
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};
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gui::EGUI_BUTTON_IMAGE_STATE getImageState(bool pressed, const ButtonImage* images) const;
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private:
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struct ButtonSprite
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{
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bool operator==(const ButtonSprite &other) const
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{
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return Index == other.Index && Color == other.Color && Loop == other.Loop && Scale == other.Scale;
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}
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s32 Index = -1;
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video::SColor Color;
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bool Loop = false;
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bool Scale = false;
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};
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ButtonSprite ButtonSprites[gui::EGBS_COUNT];
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gui::IGUISpriteBank* SpriteBank = nullptr;
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ButtonImage ButtonImages[gui::EGBIS_COUNT];
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std::array<StyleSpec, StyleSpec::NUM_STATES> Styles;
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gui::IGUIFont* OverrideFont = nullptr;
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bool OverrideColorEnabled = false;
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video::SColor OverrideColor = video::SColor(101,255,255,255);
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u32 ClickTime = 0;
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u32 HoverTime = 0;
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u32 FocusTime = 0;
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bool ClickShiftState = false;
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bool ClickControlState = false;
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bool IsPushButton = false;
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bool Pressed = false;
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bool UseAlphaChannel = false;
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bool DrawBorder = true;
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bool ScaleImage = false;
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video::SColor Colors[4];
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// PATCH
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bool WasHovered = false;
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bool WasFocused = false;
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ISimpleTextureSource *TSrc;
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gui::IGUIStaticText *StaticText;
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core::rect<s32> BgMiddle;
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core::rect<s32> Padding;
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core::vector2d<s32> ContentOffset;
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video::SColor BgColor = video::SColor(0xFF,0xFF,0xFF,0xFF);
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// END PATCH
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};
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