1 // Copyright (C) 2002-2012 Nikolaus Gebhardt
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2 // This file is part of the "Irrlicht Engine".
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3 // For conditions of distribution and use, see copyright notice in irrlicht.h
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7 #include "IrrCompileConfig.h"
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9 #include <IGUIStaticText.h>
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10 #include "irrlicht_changes/static_text.h"
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11 #include "IGUIButton.h"
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12 #include "IGUISpriteBank.h"
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13 #include "ITexture.h"
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15 #include "guiSkin.h"
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16 #include "StyleSpec.h"
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18 using namespace irr;
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20 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 8)
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21 namespace irr { namespace gui {
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23 //! State of buttons used for drawing texture images.
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24 //! Note that only a single state is active at a time
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25 //! Also when no image is defined for a state it will use images from another state
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26 //! and if that state is not set from the replacement for that,etc.
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27 //! So in many cases setting EGBIS_IMAGE_UP and EGBIS_IMAGE_DOWN is sufficient.
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28 enum EGUI_BUTTON_IMAGE_STATE {
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29 //! When no other states have images they will all use this one.
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31 //! When not set EGBIS_IMAGE_UP is used.
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32 EGBIS_IMAGE_UP_MOUSEOVER,
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33 //! When not set EGBIS_IMAGE_UP_MOUSEOVER is used.
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34 EGBIS_IMAGE_UP_FOCUSED,
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35 //! When not set EGBIS_IMAGE_UP_FOCUSED is used.
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36 EGBIS_IMAGE_UP_FOCUSED_MOUSEOVER,
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37 //! When not set EGBIS_IMAGE_UP is used.
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39 //! When not set EGBIS_IMAGE_DOWN is used.
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40 EGBIS_IMAGE_DOWN_MOUSEOVER,
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41 //! When not set EGBIS_IMAGE_DOWN_MOUSEOVER is used.
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42 EGBIS_IMAGE_DOWN_FOCUSED,
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43 //! When not set EGBIS_IMAGE_DOWN_FOCUSED is used.
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44 EGBIS_IMAGE_DOWN_FOCUSED_MOUSEOVER,
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45 //! When not set EGBIS_IMAGE_UP or EGBIS_IMAGE_DOWN are used (depending on button state).
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46 EGBIS_IMAGE_DISABLED,
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47 //! not used, counts the number of enumerated items
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51 //! Names for gui button image states
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52 const c8 *const GUIButtonImageStateNames[EGBIS_COUNT + 1] =
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54 "Image", // not "ImageUp" as it otherwise breaks serialization of old files
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57 "ImageUpFocusedOver",
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58 "PressedImage", // not "ImageDown" as it otherwise breaks serialization of old files
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61 "ImageDownFocusedOver",
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70 class ISimpleTextureSource;
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72 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 8)
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75 #define OVERRIDE_19 override
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78 class GUIButton : public gui::IGUIButton
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83 GUIButton(gui::IGUIEnvironment* environment, gui::IGUIElement* parent,
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84 s32 id, core::rect<s32> rectangle, ISimpleTextureSource *tsrc,
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88 virtual ~GUIButton();
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90 //! called if an event happened.
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91 virtual bool OnEvent(const SEvent& event) override;
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93 //! draws the element and its children
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94 virtual void draw() override;
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96 //! sets another skin independent font. if this is set to zero, the button uses the font of the skin.
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97 virtual void setOverrideFont(gui::IGUIFont* font=0) override;
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99 //! Gets the override font (if any)
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100 virtual gui::IGUIFont* getOverrideFont() const override;
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102 //! Get the font which is used right now for drawing
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103 virtual gui::IGUIFont* getActiveFont() const override;
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105 //! Sets another color for the button text.
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106 virtual void setOverrideColor(video::SColor color) OVERRIDE_19;
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108 //! Gets the override color
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109 virtual video::SColor getOverrideColor(void) const OVERRIDE_19;
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111 #if IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR > 8
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112 //! Gets the currently used text color
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113 virtual video::SColor getActiveColor() const override;
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116 //! Sets if the button text should use the override color or the color in the gui skin.
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117 virtual void enableOverrideColor(bool enable) OVERRIDE_19;
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119 //! Checks if an override color is enabled
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120 virtual bool isOverrideColorEnabled(void) const OVERRIDE_19;
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123 //! Sets an image which should be displayed on the button when it is in the given state.
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124 virtual void setImage(gui::EGUI_BUTTON_IMAGE_STATE state,
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125 video::ITexture* image=nullptr,
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126 const core::rect<s32>& sourceRect=core::rect<s32>(0,0,0,0)) OVERRIDE_19;
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128 //! Sets an image which should be displayed on the button when it is in normal state.
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129 virtual void setImage(video::ITexture* image=nullptr) override;
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131 //! Sets an image which should be displayed on the button when it is in normal state.
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132 virtual void setImage(video::ITexture* image, const core::rect<s32>& pos) override;
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134 //! Sets an image which should be displayed on the button when it is in pressed state.
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135 virtual void setPressedImage(video::ITexture* image=nullptr) override;
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137 //! Sets an image which should be displayed on the button when it is in pressed state.
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138 virtual void setPressedImage(video::ITexture* image, const core::rect<s32>& pos) override;
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140 //! Sets the text displayed by the button
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141 virtual void setText(const wchar_t* text) override;
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144 //! Sets the sprite bank used by the button
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145 virtual void setSpriteBank(gui::IGUISpriteBank* bank=0) override;
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147 //! Sets the animated sprite for a specific button state
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148 /** \param index: Number of the sprite within the sprite bank, use -1 for no sprite
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149 \param state: State of the button to set the sprite for
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150 \param index: The sprite number from the current sprite bank
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151 \param color: The color of the sprite
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153 virtual void setSprite(gui::EGUI_BUTTON_STATE state, s32 index,
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154 video::SColor color=video::SColor(255,255,255,255),
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155 bool loop=false, bool scale=false) OVERRIDE_19;
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157 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 8)
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158 void setSprite(gui::EGUI_BUTTON_STATE state, s32 index, video::SColor color, bool loop) override {
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159 setSprite(state, index, color, loop, false);
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163 //! Get the sprite-index for the given state or -1 when no sprite is set
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164 virtual s32 getSpriteIndex(gui::EGUI_BUTTON_STATE state) const OVERRIDE_19;
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166 //! Get the sprite color for the given state. Color is only used when a sprite is set.
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167 virtual video::SColor getSpriteColor(gui::EGUI_BUTTON_STATE state) const OVERRIDE_19;
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169 //! Returns if the sprite in the given state does loop
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170 virtual bool getSpriteLoop(gui::EGUI_BUTTON_STATE state) const OVERRIDE_19;
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172 //! Returns if the sprite in the given state is scaled
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173 virtual bool getSpriteScale(gui::EGUI_BUTTON_STATE state) const OVERRIDE_19;
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175 //! Sets if the button should behave like a push button. Which means it
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176 //! can be in two states: Normal or Pressed. With a click on the button,
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177 //! the user can change the state of the button.
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178 virtual void setIsPushButton(bool isPushButton=true) override;
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180 //! Checks whether the button is a push button
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181 virtual bool isPushButton() const override;
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183 //! Sets the pressed state of the button if this is a pushbutton
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184 virtual void setPressed(bool pressed=true) override;
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186 //! Returns if the button is currently pressed
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187 virtual bool isPressed() const override;
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190 //! Returns if this element (or one of its direct children) is hovered
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191 bool isHovered() const;
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194 //! Sets if the button should use the skin to draw its border
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195 virtual void setDrawBorder(bool border=true) override;
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197 //! Checks if the button face and border are being drawn
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198 virtual bool isDrawingBorder() const override;
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200 //! Sets if the alpha channel should be used for drawing images on the button (default is false)
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201 virtual void setUseAlphaChannel(bool useAlphaChannel=true) override;
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203 //! Checks if the alpha channel should be used for drawing images on the button
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204 virtual bool isAlphaChannelUsed() const override;
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206 //! Sets if the button should scale the button images to fit
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207 virtual void setScaleImage(bool scaleImage=true) override;
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209 //! Checks whether the button scales the used images
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210 virtual bool isScalingImage() const override;
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212 //! Get if the shift key was pressed in last EGET_BUTTON_CLICKED event
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213 virtual bool getClickShiftState() const OVERRIDE_19
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215 return ClickShiftState;
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218 //! Get if the control key was pressed in last EGET_BUTTON_CLICKED event
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219 virtual bool getClickControlState() const OVERRIDE_19
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221 return ClickControlState;
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224 void setColor(video::SColor color);
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226 //! Set element properties from a StyleSpec corresponding to the button state
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227 void setFromState();
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229 //! Set element properties from a StyleSpec
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230 virtual void setFromStyle(const StyleSpec& style);
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232 //! Set the styles used for each state
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233 void setStyles(const std::array<StyleSpec, StyleSpec::NUM_STATES>& styles);
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237 //! Do not drop returned handle
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238 static GUIButton* addButton(gui::IGUIEnvironment *environment,
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239 const core::rect<s32>& rectangle, ISimpleTextureSource *tsrc,
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240 IGUIElement* parent, s32 id, const wchar_t* text,
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241 const wchar_t *tooltiptext=L"");
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244 void drawSprite(gui::EGUI_BUTTON_STATE state, u32 startTime, const core::position2di& center);
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245 gui::EGUI_BUTTON_IMAGE_STATE getImageState(bool pressed) const;
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247 ISimpleTextureSource *getTextureSource() { return TSrc; }
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251 ButtonImage() : Texture(0), SourceRect(core::rect<s32>(0,0,0,0))
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255 ButtonImage(const ButtonImage& other) : Texture(0), SourceRect(core::rect<s32>(0,0,0,0))
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266 ButtonImage& operator=(const ButtonImage& other)
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268 if ( this == &other )
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272 other.Texture->grab();
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275 Texture = other.Texture;
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276 SourceRect = other.SourceRect;
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280 bool operator==(const ButtonImage& other) const
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282 return Texture == other.Texture && SourceRect == other.SourceRect;
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286 video::ITexture* Texture;
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287 core::rect<s32> SourceRect;
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290 gui::EGUI_BUTTON_IMAGE_STATE getImageState(bool pressed, const ButtonImage* images) const;
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294 struct ButtonSprite
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296 ButtonSprite() : Index(-1), Loop(false), Scale(false)
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300 bool operator==(const ButtonSprite& other) const
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302 return Index == other.Index && Color == other.Color && Loop == other.Loop && Scale == other.Scale;
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306 video::SColor Color;
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311 ButtonSprite ButtonSprites[gui::EGBS_COUNT];
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312 gui::IGUISpriteBank* SpriteBank;
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314 ButtonImage ButtonImages[gui::EGBIS_COUNT];
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316 std::array<StyleSpec, StyleSpec::NUM_STATES> Styles;
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318 gui::IGUIFont* OverrideFont;
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320 bool OverrideColorEnabled;
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321 video::SColor OverrideColor;
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323 u32 ClickTime, HoverTime, FocusTime;
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325 bool ClickShiftState;
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326 bool ClickControlState;
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330 bool UseAlphaChannel;
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334 video::SColor Colors[4];
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336 bool WasHovered = false;
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337 ISimpleTextureSource *TSrc;
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339 gui::IGUIStaticText *StaticText;
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341 core::rect<s32> BgMiddle;
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342 core::rect<s32> Padding;
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343 core::vector2d<s32> ContentOffset;
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344 video::SColor BgColor;
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