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182 lines
4.9 KiB
C++
182 lines
4.9 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 "IGUITabControl.h"
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#include "irrArray.h"
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#include "IGUISkin.h"
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namespace irr
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{
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namespace gui
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{
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class CGUITabControl;
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class IGUIButton;
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// A tab, onto which other gui elements could be added.
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class CGUITab : public IGUITab
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{
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public:
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//! constructor
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CGUITab(IGUIEnvironment* environment,
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IGUIElement* parent, const core::rect<s32>& rectangle,
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s32 id);
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//! draws the element and its children
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void draw() override;
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//! sets if the tab should draw its background
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void setDrawBackground(bool draw=true) override;
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//! sets the color of the background, if it should be drawn.
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void setBackgroundColor(video::SColor c) override;
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//! sets the color of the text
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void setTextColor(video::SColor c) override;
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//! returns true if the tab is drawing its background, false if not
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bool isDrawingBackground() const override;
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//! returns the color of the background
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video::SColor getBackgroundColor() const override;
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video::SColor getTextColor() const override;
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private:
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video::SColor BackColor;
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bool OverrideTextColorEnabled;
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video::SColor TextColor;
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bool DrawBackground;
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};
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//! A standard tab control
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class CGUITabControl : public IGUITabControl
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{
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public:
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//! destructor
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CGUITabControl(IGUIEnvironment* environment,
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IGUIElement* parent, const core::rect<s32>& rectangle,
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bool fillbackground=true, bool border=true, s32 id=-1);
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//! destructor
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virtual ~CGUITabControl();
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//! Adds a tab
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IGUITab* addTab(const wchar_t* caption, s32 id=-1) override;
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//! Adds an existing tab
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s32 addTab(IGUITab* tab) override;
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//! Insert the tab at the given index
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IGUITab* insertTab(s32 idx, const wchar_t* caption, s32 id=-1) override;
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//! Insert an existing tab
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/** Note that it will also add the tab as a child of this TabControl.
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\return Index of added tab (should be same as the one passed) or -1 for failure*/
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s32 insertTab(s32 idx, IGUITab* tab, bool serializationMode) override;
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//! Removes a tab from the tabcontrol
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void removeTab(s32 idx) override;
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//! Clears the tabcontrol removing all tabs
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void clear() override;
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//! Returns amount of tabs in the tabcontrol
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s32 getTabCount() const override;
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//! Returns a tab based on zero based index
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IGUITab* getTab(s32 idx) const override;
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//! Brings a tab to front.
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bool setActiveTab(s32 idx) override;
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//! Brings a tab to front.
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bool setActiveTab(IGUITab *tab) override;
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//! For given given tab find it's zero-based index (or -1 for not found)
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s32 getTabIndex(const IGUIElement *tab) const override;
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//! Returns which tab is currently active
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s32 getActiveTab() const override;
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//! get the the id of the tab at the given absolute coordinates
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s32 getTabAt(s32 xpos, s32 ypos) const override;
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//! called if an event happened.
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bool OnEvent(const SEvent& event) override;
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//! draws the element and its children
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void draw() override;
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//! Removes a child.
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void removeChild(IGUIElement* child) override;
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//! Set the height of the tabs
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void setTabHeight( s32 height ) override;
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//! Get the height of the tabs
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s32 getTabHeight() const override;
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//! set the maximal width of a tab. Per default width is 0 which means "no width restriction".
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void setTabMaxWidth(s32 width ) override;
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//! get the maximal width of a tab
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s32 getTabMaxWidth() const override;
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//! Set the alignment of the tabs
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//! note: EGUIA_CENTER is not an option
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void setTabVerticalAlignment( gui::EGUI_ALIGNMENT alignment ) override;
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//! Get the alignment of the tabs
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gui::EGUI_ALIGNMENT getTabVerticalAlignment() const override;
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//! Set the extra width added to tabs on each side of the text
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void setTabExtraWidth( s32 extraWidth ) override;
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//! Get the extra width added to tabs on each side of the text
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s32 getTabExtraWidth() const override;
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//! Update the position of the element, decides scroll button status
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void updateAbsolutePosition() override;
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private:
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void scrollLeft();
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void scrollRight();
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//! Indicates whether the tabs overflow in X direction
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bool needScrollControl( s32 startIndex=0, bool withScrollControl=false, s32 *pos_rightmost=nullptr );
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//! Left index calculation based on the selected tab
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s32 calculateScrollIndexFromActive();
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s32 calcTabWidth(IGUIFont* font, const wchar_t* text) const;
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core::rect<s32> calcTabPos();
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void setVisibleTab(s32 idx);
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void removeTabButNotChild(s32 idx);
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void recalculateScrollButtonPlacement();
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void recalculateScrollBar();
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void refreshSprites();
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core::array<IGUITab*> Tabs;
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s32 ActiveTabIndex;
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bool Border;
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bool FillBackground;
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bool ScrollControl;
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s32 TabHeight;
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gui::EGUI_ALIGNMENT VerticalAlignment;
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IGUIButton* UpButton;
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IGUIButton* DownButton;
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s32 TabMaxWidth;
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s32 CurrentScrollTabIndex;
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s32 TabExtraWidth;
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};
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} // end namespace gui
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} // end namespace irr
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