1 /* B.Oops 2 * Glitch effect sequencer LV2 plugin 3 * 4 * Copyright (C) 2019 by Sven Jähnichen 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 3, or (at your option) 9 * any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software Foundation, 18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 */ 20 21 #ifndef HALOBUTTON_HPP_ 22 #define HALOBUTTON_HPP_ 23 24 #include "BWidgets/ValueWidget.hpp" 25 #include "BWidgets/Focusable.hpp" 26 #include "BWidgets/Label.hpp" 27 28 class HaloButton : public BWidgets::ValueWidget, public BWidgets::Focusable 29 { 30 public: HaloButton()31 HaloButton () : HaloButton (0, 0, 0, 0, "editwidget", "") {} 32 HaloButton(const double x,const double y,const double width,const double height,const std::string & name,const std::string & focusText)33 HaloButton (const double x, const double y, const double width, const double height, const std::string& name, const std::string& focusText) : 34 ValueWidget (x, y, width, height, name, 0.0), 35 Focusable (std::chrono::milliseconds (BWIDGETS_DEFAULT_FOCUS_IN_MS), 36 std::chrono::milliseconds (BWIDGETS_DEFAULT_FOCUS_OUT_MS)), 37 focusLabel_ (0, 0, 40, 20, name_ + BWIDGETS_DEFAULT_FOCUS_NAME, focusText) 38 { 39 focusLabel_.setStacking (BWidgets::STACKING_OVERSIZE); 40 focusLabel_.resize (); 41 focusLabel_.hide (); 42 add (focusLabel_); 43 } 44 HaloButton(const HaloButton & that)45 HaloButton (const HaloButton& that) : 46 ValueWidget (that), Focusable (that), 47 focusLabel_ (that.focusLabel_) 48 { 49 focusLabel_.hide(); 50 add (focusLabel_); 51 } 52 operator =(const HaloButton & that)53 HaloButton& operator= (const HaloButton& that) 54 { 55 release (&focusLabel_); 56 focusLabel_ = that.focusLabel_; 57 focusLabel_.hide(); 58 59 Widget::operator= (that); 60 Focusable::operator= (that); 61 62 add (focusLabel_); 63 64 return *this; 65 66 } 67 clone() const68 virtual BWidgets::Widget* clone () const override {return new HaloButton (*this);} 69 applyTheme(BStyles::Theme & theme)70 virtual void applyTheme (BStyles::Theme& theme) override {applyTheme (theme, name_);} 71 applyTheme(BStyles::Theme & theme,const std::string & name)72 virtual void applyTheme (BStyles::Theme& theme, const std::string& name) override 73 { 74 Widget::applyTheme (theme, name); 75 focusLabel_.applyTheme (theme, name + BWIDGETS_DEFAULT_FOCUS_NAME); 76 focusLabel_.resize(); 77 } 78 onButtonPressed(BEvents::PointerEvent * event)79 virtual void onButtonPressed (BEvents::PointerEvent* event) override 80 { 81 setValue (1.0); 82 Widget::cbfunction_[BEvents::EventType::BUTTON_PRESS_EVENT] (event); 83 } 84 onButtonReleased(BEvents::PointerEvent * event)85 virtual void onButtonReleased (BEvents::PointerEvent* event) override 86 { 87 setValue (0.0); 88 Widget::cbfunction_[BEvents::EventType::BUTTON_RELEASE_EVENT] (event); 89 } 90 onFocusIn(BEvents::FocusEvent * event)91 virtual void onFocusIn (BEvents::FocusEvent* event) override 92 { 93 if (event && event->getWidget()) 94 { 95 BUtilities::Point pos = event->getPosition(); 96 focusLabel_.moveTo (pos.x - 0.5 * focusLabel_.getWidth(), pos.y - focusLabel_.getHeight()); 97 focusLabel_.show(); 98 } 99 Widget::onFocusIn (event); 100 } 101 onFocusOut(BEvents::FocusEvent * event)102 virtual void onFocusOut (BEvents::FocusEvent* event) override 103 { 104 if (event && event->getWidget()) focusLabel_.hide(); 105 Widget::onFocusOut (event); 106 } 107 108 protected: 109 BWidgets::Label focusLabel_; 110 draw(const BUtilities::RectArea & area)111 virtual void draw (const BUtilities::RectArea& area) override 112 { 113 if ((!widgetSurface_) || (cairo_surface_status (widgetSurface_) != CAIRO_STATUS_SUCCESS)) return; 114 115 if ((getWidth () >= 1) && (getHeight () >= 1)) 116 { 117 // Draw super class widget elements first 118 Widget::draw (area); 119 120 if (value == 1.0) 121 { 122 cairo_t* cr = cairo_create (widgetSurface_); 123 if (cairo_status (cr) == CAIRO_STATUS_SUCCESS) 124 { 125 // Limit cairo-drawing area 126 cairo_rectangle (cr, area.getX (), area.getY (), area.getWidth (), area.getHeight ()); 127 cairo_clip (cr); 128 129 double x0 = getXOffset (); 130 double y0 = getYOffset (); 131 double w = getEffectiveWidth (); 132 double h = getEffectiveHeight (); 133 cairo_rectangle (cr, x0, y0, w, h); 134 cairo_set_line_width (cr, 1.0); 135 cairo_set_source_rgba (cr, CAIRO_RGBA (BColors::white)); 136 cairo_stroke (cr); 137 cairo_destroy (cr); 138 } 139 } 140 } 141 } 142 }; 143 144 #endif /* HALOBUTTON_HPP_ */ 145