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annotate DPF-Prymula-audioplugins/dpf/dgl/ImageBaseWidgets.hpp @ 3:84e66ea83026

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DPF-Prymula-audioplugins-0.231015-2
author prymula <prymula76@outlook.com>
date Mon, 16 Oct 2023 21:53:34 +0200
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3
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1 /*
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2 * DISTRHO Plugin Framework (DPF)
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3 * Copyright (C) 2012-2021 Filipe Coelho <falktx@falktx.com>
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4 *
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5 * Permission to use, copy, modify, and/or distribute this software for any purpose with
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6 * or without fee is hereby granted, provided that the above copyright notice and this
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7 * permission notice appear in all copies.
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8 *
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9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
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10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
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11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 #ifndef DGL_IMAGE_BASE_WIDGETS_HPP_INCLUDED
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18 #define DGL_IMAGE_BASE_WIDGETS_HPP_INCLUDED
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19
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20 #include "EventHandlers.hpp"
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21 #include "StandaloneWindow.hpp"
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22 #include "SubWidget.hpp"
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23
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24 START_NAMESPACE_DGL
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25
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26 // --------------------------------------------------------------------------------------------------------------------
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27
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28 /**
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29 DGL Image About Window class.
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30
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31 This is a Window attached (transient) to another Window that simply shows an Image as its content.
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32 It is typically used for "about this project" style pop-up Windows.
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33
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34 Pressing 'Esc' or clicking anywhere on the window will automatically close it.
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35
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36 @see CairoImageAboutWindow, OpenGLImageAboutWindow, Window::runAsModal(bool)
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37 */
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38 template <class ImageType>
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39 class ImageBaseAboutWindow : public StandaloneWindow
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40 {
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41 public:
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42 /**
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43 Constructor taking an existing Window as the parent transient window and an optional image.
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44 If @a image is valid, the about window size will match the image size.
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45 */
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46 explicit ImageBaseAboutWindow(Window& transientParentWindow, const ImageType& image = ImageType());
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47
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48 /**
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49 Constructor taking a top-level-widget's Window as the parent transient window and an optional image.
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50 If @a image is valid, the about window size will match the image size.
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51 */
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52 explicit ImageBaseAboutWindow(TopLevelWidget* topLevelWidget, const ImageType& image = ImageType());
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53
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54 /**
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55 Set a new image to use as background for this window.
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56 Window size will adjust to match the image size.
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57 */
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58 void setImage(const ImageType& image);
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59
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60 protected:
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61 void onDisplay() override;
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62 bool onKeyboard(const KeyboardEvent&) override;
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63 bool onMouse(const MouseEvent&) override;
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64
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65 private:
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66 ImageType img;
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67
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68 DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(ImageBaseAboutWindow)
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69 };
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70
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71 // --------------------------------------------------------------------------------------------------------------------
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72
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73 /**
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74 DGL Image Button class.
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75
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76 This is a typical button, where the drawing comes from a pregenerated set of images.
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77 The button can be under "normal", "hover" and "down" states, with one separate image possible for each.
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78
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79 The event logic for this button comes from the ButtonEventHandler class.
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80
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81 @see CairoImageButton, OpenGLImageButton
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82 */
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83 template <class ImageType>
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84 class ImageBaseButton : public SubWidget,
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85 public ButtonEventHandler
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86 {
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87 public:
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88 class Callback
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89 {
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90 public:
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91 virtual ~Callback() {}
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92 virtual void imageButtonClicked(ImageBaseButton* imageButton, int button) = 0;
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93 };
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94
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95 explicit ImageBaseButton(Widget* parentWidget, const ImageType& image);
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96 explicit ImageBaseButton(Widget* parentWidget, const ImageType& imageNormal, const ImageType& imageDown);
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97 explicit ImageBaseButton(Widget* parentWidget, const ImageType& imageNormal, const ImageType& imageHover, const ImageType& imageDown);
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98
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99 ~ImageBaseButton() override;
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100
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101 void setCallback(Callback* callback) noexcept;
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102
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103 protected:
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104 void onDisplay() override;
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105 bool onMouse(const MouseEvent&) override;
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106 bool onMotion(const MotionEvent&) override;
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107
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108 private:
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109 struct PrivateData;
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110 PrivateData* const pData;
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111
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112 DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(ImageBaseButton)
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113 };
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114
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115 // --------------------------------------------------------------------------------------------------------------------
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116
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117 /**
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118 DGL Image Knob class.
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119
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120 This is a typical knob/dial, where the drawing comes from a pregenerated image "filmstrip".
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121 The knob's "filmstrip" image can be either horizontal or vertical,
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122 with the number of steps automatically based on the largest value (ie, horizontal if width>height, vertical if height>width).
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123 There are no different images for "hover" or "down" states.
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parents:
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124
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parents:
diff changeset
125 The event logic for this knob comes from the KnobEventHandler class.
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126
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parents:
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127 @see CairoImageKnob, OpenGLImageKnob
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128 */
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129 template <class ImageType>
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130 class ImageBaseKnob : public SubWidget,
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parents:
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131 public KnobEventHandler
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132 {
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133 public:
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134 class Callback
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diff changeset
135 {
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136 public:
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parents:
diff changeset
137 virtual ~Callback() {}
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diff changeset
138 virtual void imageKnobDragStarted(ImageBaseKnob* imageKnob) = 0;
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parents:
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139 virtual void imageKnobDragFinished(ImageBaseKnob* imageKnob) = 0;
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parents:
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140 virtual void imageKnobValueChanged(ImageBaseKnob* imageKnob, float value) = 0;
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parents:
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141 };
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diff changeset
142
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143 explicit ImageBaseKnob(Widget* parentWidget, const ImageType& image, Orientation orientation = Vertical) noexcept;
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144 explicit ImageBaseKnob(const ImageBaseKnob& imageKnob);
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parents:
diff changeset
145 ImageBaseKnob& operator=(const ImageBaseKnob& imageKnob);
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prymula <prymula76@outlook.com>
parents:
diff changeset
146 ~ImageBaseKnob() override;
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147
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parents:
diff changeset
148 void setCallback(Callback* callback) noexcept;
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parents:
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149 void setImageLayerCount(uint count) noexcept;
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parents:
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150 void setRotationAngle(int angle);
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parents:
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151 bool setValue(float value, bool sendCallback = false) noexcept override;
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152
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153 protected:
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154 void onDisplay() override;
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prymula <prymula76@outlook.com>
parents:
diff changeset
155 bool onMouse(const MouseEvent&) override;
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prymula <prymula76@outlook.com>
parents:
diff changeset
156 bool onMotion(const MotionEvent&) override;
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parents:
diff changeset
157 bool onScroll(const ScrollEvent&) override;
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parents:
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158
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159 private:
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parents:
diff changeset
160 struct PrivateData;
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prymula <prymula76@outlook.com>
parents:
diff changeset
161 PrivateData* const pData;
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diff changeset
162
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parents:
diff changeset
163 DISTRHO_LEAK_DETECTOR(ImageBaseKnob)
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prymula <prymula76@outlook.com>
parents:
diff changeset
164 };
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diff changeset
165
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parents:
diff changeset
166 // --------------------------------------------------------------------------------------------------------------------
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diff changeset
167
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parents:
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168 // note set range and step before setting the value
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parents:
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169
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parents:
diff changeset
170 template <class ImageType>
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parents:
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171 class ImageBaseSlider : public SubWidget
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parents:
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172 {
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parents:
diff changeset
173 public:
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parents:
diff changeset
174 class Callback
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prymula <prymula76@outlook.com>
parents:
diff changeset
175 {
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parents:
diff changeset
176 public:
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prymula <prymula76@outlook.com>
parents:
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177 virtual ~Callback() {}
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parents:
diff changeset
178 virtual void imageSliderDragStarted(ImageBaseSlider* imageSlider) = 0;
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parents:
diff changeset
179 virtual void imageSliderDragFinished(ImageBaseSlider* imageSlider) = 0;
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parents:
diff changeset
180 virtual void imageSliderValueChanged(ImageBaseSlider* imageSlider, float value) = 0;
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prymula <prymula76@outlook.com>
parents:
diff changeset
181 };
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parents:
diff changeset
182
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prymula <prymula76@outlook.com>
parents:
diff changeset
183 explicit ImageBaseSlider(Widget* parentWidget, const ImageType& image) noexcept;
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parents:
diff changeset
184 ~ImageBaseSlider() override;
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parents:
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185
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parents:
diff changeset
186 float getValue() const noexcept;
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parents:
diff changeset
187 void setValue(float value, bool sendCallback = false) noexcept;
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parents:
diff changeset
188 void setDefault(float def) noexcept;
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diff changeset
189
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parents:
diff changeset
190 void setStartPos(const Point<int>& startPos) noexcept;
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parents:
diff changeset
191 void setStartPos(int x, int y) noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
192 void setEndPos(const Point<int>& endPos) noexcept;
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parents:
diff changeset
193 void setEndPos(int x, int y) noexcept;
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diff changeset
194
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parents:
diff changeset
195 void setCheckable(bool checkable) noexcept;
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parents:
diff changeset
196 void setInverted(bool inverted) noexcept;
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parents:
diff changeset
197 void setRange(float min, float max) noexcept;
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parents:
diff changeset
198 void setStep(float step) noexcept;
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diff changeset
199
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parents:
diff changeset
200 void setCallback(Callback* callback) noexcept;
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parents:
diff changeset
201
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parents:
diff changeset
202 protected:
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parents:
diff changeset
203 void onDisplay() override;
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prymula <prymula76@outlook.com>
parents:
diff changeset
204 bool onMouse(const MouseEvent&) override;
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prymula <prymula76@outlook.com>
parents:
diff changeset
205 bool onMotion(const MotionEvent&) override;
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parents:
diff changeset
206
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parents:
diff changeset
207 private:
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parents:
diff changeset
208 struct PrivateData;
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parents:
diff changeset
209 PrivateData* const pData;
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parents:
diff changeset
210
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prymula <prymula76@outlook.com>
parents:
diff changeset
211 // these should not be used
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prymula <prymula76@outlook.com>
parents:
diff changeset
212 void setAbsoluteX(int) const noexcept {}
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prymula <prymula76@outlook.com>
parents:
diff changeset
213 void setAbsoluteY(int) const noexcept {}
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parents:
diff changeset
214 void setAbsolutePos(int, int) const noexcept {}
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parents:
diff changeset
215 void setAbsolutePos(const Point<int>&) const noexcept {}
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parents:
diff changeset
216
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parents:
diff changeset
217 DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(ImageBaseSlider)
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parents:
diff changeset
218 };
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parents:
diff changeset
219
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
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parents:
diff changeset
220 // --------------------------------------------------------------------------------------------------------------------
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parents:
diff changeset
221
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prymula <prymula76@outlook.com>
parents:
diff changeset
222 template <class ImageType>
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prymula <prymula76@outlook.com>
parents:
diff changeset
223 class ImageBaseSwitch : public SubWidget
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prymula <prymula76@outlook.com>
parents:
diff changeset
224 {
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parents:
diff changeset
225 public:
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parents:
diff changeset
226 class Callback
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prymula <prymula76@outlook.com>
parents:
diff changeset
227 {
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parents:
diff changeset
228 public:
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parents:
diff changeset
229 virtual ~Callback() {}
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prymula <prymula76@outlook.com>
parents:
diff changeset
230 virtual void imageSwitchClicked(ImageBaseSwitch* imageSwitch, bool down) = 0;
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prymula <prymula76@outlook.com>
parents:
diff changeset
231 };
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parents:
diff changeset
232
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prymula <prymula76@outlook.com>
parents:
diff changeset
233 explicit ImageBaseSwitch(Widget* parentWidget, const ImageType& imageNormal, const ImageType& imageDown) noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
234 explicit ImageBaseSwitch(const ImageBaseSwitch& imageSwitch) noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
235 ImageBaseSwitch& operator=(const ImageBaseSwitch& imageSwitch) noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
236 ~ImageBaseSwitch() override;
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parents:
diff changeset
237
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prymula <prymula76@outlook.com>
parents:
diff changeset
238 bool isDown() const noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
239 void setDown(bool down) noexcept;
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parents:
diff changeset
240
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prymula <prymula76@outlook.com>
parents:
diff changeset
241 void setCallback(Callback* callback) noexcept;
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prymula <prymula76@outlook.com>
parents:
diff changeset
242
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
243 protected:
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
244 void onDisplay() override;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
245 bool onMouse(const MouseEvent&) override;
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prymula <prymula76@outlook.com>
parents:
diff changeset
246
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prymula <prymula76@outlook.com>
parents:
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247 private:
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prymula <prymula76@outlook.com>
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248 struct PrivateData;
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prymula <prymula76@outlook.com>
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249 PrivateData* const pData;
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prymula <prymula76@outlook.com>
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250
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prymula <prymula76@outlook.com>
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251 DISTRHO_LEAK_DETECTOR(ImageBaseSwitch)
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prymula <prymula76@outlook.com>
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252 };
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prymula <prymula76@outlook.com>
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253
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prymula <prymula76@outlook.com>
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254 // --------------------------------------------------------------------------------------------------------------------
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prymula <prymula76@outlook.com>
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255
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prymula <prymula76@outlook.com>
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256 END_NAMESPACE_DGL
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prymula <prymula76@outlook.com>
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257
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prymula <prymula76@outlook.com>
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258 #endif // DGL_IMAGE_BASE_WIDGETS_HPP_INCLUDED