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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26 //! State of buttons used for drawing texture images.
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27 //! Note that only a single state is active at a time
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28 //! Also when no image is defined for a state it will use images from another state
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29 //! and if that state is not set from the replacement for that,etc.
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30 //! So in many cases setting EGBIS_IMAGE_UP and EGBIS_IMAGE_DOWN is sufficient.
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31 enum EGUI_BUTTON_IMAGE_STATE
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33 //! When no other states have images they will all use this one.
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35 //! When not set EGBIS_IMAGE_UP is used.
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36 EGBIS_IMAGE_UP_MOUSEOVER,
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37 //! When not set EGBIS_IMAGE_UP_MOUSEOVER is used.
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38 EGBIS_IMAGE_UP_FOCUSED,
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39 //! When not set EGBIS_IMAGE_UP_FOCUSED is used.
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40 EGBIS_IMAGE_UP_FOCUSED_MOUSEOVER,
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41 //! When not set EGBIS_IMAGE_UP is used.
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43 //! When not set EGBIS_IMAGE_DOWN is used.
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44 EGBIS_IMAGE_DOWN_MOUSEOVER,
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45 //! When not set EGBIS_IMAGE_DOWN_MOUSEOVER is used.
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46 EGBIS_IMAGE_DOWN_FOCUSED,
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47 //! When not set EGBIS_IMAGE_DOWN_FOCUSED is used.
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48 EGBIS_IMAGE_DOWN_FOCUSED_MOUSEOVER,
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49 //! When not set EGBIS_IMAGE_UP or EGBIS_IMAGE_DOWN are used (depending on button
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51 EGBIS_IMAGE_DISABLED,
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52 //! not used, counts the number of enumerated items
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56 //! Names for gui button image states
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57 const c8 *const GUIButtonImageStateNames[EGBIS_COUNT + 1] = {
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58 "Image", // not "ImageUp" as it otherwise breaks serialization of old
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60 "ImageUpOver", "ImageUpFocused", "ImageUpFocusedOver",
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61 "PressedImage", // not "ImageDown" as it otherwise breaks serialization of
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63 "ImageDownOver", "ImageDownFocused", "ImageDownFocusedOver",
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73 class ISimpleTextureSource;
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75 class GUIButton : public gui::IGUIButton
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79 GUIButton(gui::IGUIEnvironment *environment, gui::IGUIElement *parent, s32 id,
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80 core::rect<s32> rectangle, ISimpleTextureSource *tsrc,
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81 bool noclip = false);
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84 virtual ~GUIButton();
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86 //! called if an event happened.
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87 virtual bool OnEvent(const SEvent &event) override;
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89 //! draws the element and its children
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90 virtual void draw() override;
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92 //! sets another skin independent font. if this is set to zero, the button uses
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93 //! the font of the skin.
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94 virtual void setOverrideFont(gui::IGUIFont *font = 0) override;
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96 //! Gets the override font (if any)
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97 virtual gui::IGUIFont *getOverrideFont() const override;
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99 //! Get the font which is used right now for drawing
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100 virtual gui::IGUIFont *getActiveFont() const override;
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102 //! Sets another color for the button text.
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103 virtual void setOverrideColor(video::SColor color);
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105 //! Gets the override color
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106 virtual video::SColor getOverrideColor(void) const;
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108 //! Sets if the button text should use the override color or the color in the gui
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110 virtual void enableOverrideColor(bool enable);
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112 //! Checks if an override color is enabled
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113 virtual bool isOverrideColorEnabled(void) const;
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116 //! Sets an image which should be displayed on the button when it is in the given
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118 virtual void setImage(gui::EGUI_BUTTON_IMAGE_STATE state,
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119 video::ITexture *image = nullptr,
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120 const core::rect<s32> &sourceRect = core::rect<s32>(0, 0, 0, 0));
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122 //! Sets an image which should be displayed on the button when it is in normal
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124 virtual void setImage(video::ITexture *image = nullptr) override;
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126 //! Sets an image which should be displayed on the button when it is in normal
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128 virtual void setImage(
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129 video::ITexture *image, const core::rect<s32> &pos) override;
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131 //! Sets an image which should be displayed on the button when it is in pressed
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133 virtual void setPressedImage(video::ITexture *image = nullptr) override;
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135 //! Sets an image which should be displayed on the button when it is in pressed
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137 virtual void setPressedImage(
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138 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
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149 sprite \param state: State of the button to set the sprite for \param index: The
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150 sprite number from the current sprite bank \param color: The color of the sprite
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152 virtual void setSprite(gui::EGUI_BUTTON_STATE state, s32 index,
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153 video::SColor color = video::SColor(255, 255, 255, 255),
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154 bool loop = false, bool scale = false);
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156 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 8)
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157 void setSprite(gui::EGUI_BUTTON_STATE state, s32 index, video::SColor color,
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158 bool loop) override
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160 setSprite(state, index, color, loop, false);
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164 //! Get the sprite-index for the given state or -1 when no sprite is set
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165 virtual s32 getSpriteIndex(gui::EGUI_BUTTON_STATE state) const;
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167 //! Get the sprite color for the given state. Color is only used when a sprite is
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169 virtual video::SColor getSpriteColor(gui::EGUI_BUTTON_STATE state) const;
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171 //! Returns if the sprite in the given state does loop
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172 virtual bool getSpriteLoop(gui::EGUI_BUTTON_STATE state) const;
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174 //! Returns if the sprite in the given state is scaled
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175 virtual bool getSpriteScale(gui::EGUI_BUTTON_STATE state) const;
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177 //! Sets if the button should behave like a push button. Which means it
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178 //! can be in two states: Normal or Pressed. With a click on the button,
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179 //! the user can change the state of the button.
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180 virtual void setIsPushButton(bool isPushButton = true) override;
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182 //! Checks whether the button is a push button
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183 virtual bool isPushButton() const override;
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185 //! Sets the pressed state of the button if this is a pushbutton
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186 virtual void setPressed(bool pressed = true) override;
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188 //! Returns if the button is currently pressed
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189 virtual bool isPressed() const override;
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192 //! Returns if this element (or one of its direct children) is hovered
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193 bool isHovered() const;
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196 //! Sets if the button should use the skin to draw its border
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197 virtual void setDrawBorder(bool border = true) override;
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199 //! Checks if the button face and border are being drawn
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200 virtual bool isDrawingBorder() const override;
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202 //! Sets if the alpha channel should be used for drawing images on the button
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203 //! (default is false)
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204 virtual void setUseAlphaChannel(bool useAlphaChannel = true) override;
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206 //! Checks if the alpha channel should be used for drawing images on the button
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207 virtual bool isAlphaChannelUsed() const override;
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209 //! Sets if the button should scale the button images to fit
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210 virtual void setScaleImage(bool scaleImage = true) override;
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212 //! Checks whether the button scales the used images
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213 virtual bool isScalingImage() const override;
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215 //! Get if the shift key was pressed in last EGET_BUTTON_CLICKED event
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216 virtual bool getClickShiftState() const { 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 { return ClickControlState; }
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221 //! Writes attributes of the element.
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222 virtual void serializeAttributes(io::IAttributes *out,
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223 io::SAttributeReadWriteOptions *options) const override;
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225 //! Reads attributes of the element
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226 virtual void deserializeAttributes(io::IAttributes *in,
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227 io::SAttributeReadWriteOptions *options) override;
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229 void setColor(video::SColor color);
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231 //! Set element properties from a StyleSpec corresponding to the button state
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232 void setFromState();
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234 //! Set element properties from a StyleSpec
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235 virtual void setFromStyle(const StyleSpec &style);
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237 //! Set the styles used for each state
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238 void setStyles(const std::array<StyleSpec, StyleSpec::NUM_STATES> &styles);
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241 //! Do not drop returned handle
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242 static GUIButton *addButton(gui::IGUIEnvironment *environment,
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243 const core::rect<s32> &rectangle, ISimpleTextureSource *tsrc,
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244 IGUIElement *parent, s32 id, const wchar_t *text,
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245 const wchar_t *tooltiptext = L"");
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248 void drawSprite(gui::EGUI_BUTTON_STATE state, u32 startTime,
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249 const core::position2di ¢er);
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250 gui::EGUI_BUTTON_IMAGE_STATE getImageState(bool pressed) const;
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252 ISimpleTextureSource *getTextureSource() { return TSrc; }
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256 ButtonImage() : Texture(0), SourceRect(core::rect<s32>(0, 0, 0, 0)) {}
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258 ButtonImage(const ButtonImage &other) :
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259 Texture(0), SourceRect(core::rect<s32>(0, 0, 0, 0))
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270 ButtonImage &operator=(const ButtonImage &other)
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272 if (this == &other)
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276 other.Texture->grab();
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279 Texture = other.Texture;
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280 SourceRect = other.SourceRect;
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284 bool operator==(const ButtonImage &other) const
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286 return Texture == other.Texture && SourceRect == other.SourceRect;
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289 video::ITexture *Texture;
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290 core::rect<s32> SourceRect;
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293 gui::EGUI_BUTTON_IMAGE_STATE getImageState(
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294 bool pressed, const ButtonImage *images) const;
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297 struct ButtonSprite
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299 ButtonSprite() : Index(-1), Loop(false), Scale(false) {}
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301 bool operator==(const ButtonSprite &other) const
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303 return Index == other.Index && Color == other.Color &&
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304 Loop == other.Loop && Scale == other.Scale;
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308 video::SColor Color;
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313 ButtonSprite ButtonSprites[gui::EGBS_COUNT];
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314 gui::IGUISpriteBank *SpriteBank;
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316 ButtonImage ButtonImages[gui::EGBIS_COUNT];
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318 std::array<StyleSpec, StyleSpec::NUM_STATES> Styles;
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320 gui::IGUIFont *OverrideFont;
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322 bool OverrideColorEnabled;
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323 video::SColor OverrideColor;
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325 u32 ClickTime, HoverTime, FocusTime;
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327 bool ClickShiftState;
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328 bool ClickControlState;
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332 bool UseAlphaChannel;
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336 video::SColor Colors[4];
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338 bool WasHovered = false;
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339 ISimpleTextureSource *TSrc;
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341 gui::IGUIStaticText *StaticText;
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343 core::rect<s32> BgMiddle;
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344 core::rect<s32> Padding;
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345 core::vector2d<s32> ContentOffset;
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