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/*
* Copyright (C) 2025 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2025 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 19 нояб. 2017 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef UI_TK_WIDGETS_LSPFADER_H_
#define UI_TK_WIDGETS_LSPFADER_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
// Style definition
namespace style
{
typedef struct FaderColors
{
prop::Color sBtnColor;
prop::Color sBtnBorderColor;
prop::Color sScaleColor;
prop::Color sScaleBorderColor;
prop::Color sBalanceColor;
void listener(tk::prop::Listener *listener);
bool property_changed(Property *prop);
} FaderColors;
enum FaderColorState
{
FADER_NORMAL = 0,
FADER_INACTIVE = 1 << 0,
FADER_TOTAL = 1 << 1
};
LSP_TK_STYLE_DEF_BEGIN(Fader, Widget)
FaderColors vColors[FADER_TOTAL];
prop::SizeRange sSizeRange;
prop::RangeFloat sValue;
prop::StepFloat sStep;
prop::SizeRange sBtnWidth;
prop::Float sBtnAspect;
prop::Integer sAngle;
prop::Integer sScaleWidth;
prop::Integer sScaleBorder;
prop::Integer sScaleRadius;
prop::Boolean sScaleGradient;
prop::Integer sBtnBorder;
prop::Integer sBtnRadius;
prop::Boolean sBtnGradient;
prop::Pointer sBtnPointer;
prop::Float sBalance;
prop::Float sScaleBrightness;
prop::Boolean sBalanceColorCustom;
prop::Boolean sInvertMouseVScroll;
prop::Boolean sActive;
LSP_TK_STYLE_DEF_END
}
/**
* Fader widget
*/
class Fader: public Widget
{
public:
static const w_class_t metadata;
protected:
enum flags_t
{
F_IGNORE = 1 << 0,
F_PRECISION = 1 << 1,
F_MOVER = 1 << 2
};
enum fader_flags_t
{
FADER_0 = style::FADER_NORMAL,
FADER_1 = style::FADER_INACTIVE,
FADER_TOTAL = style::FADER_TOTAL
};
protected:
ssize_t nLastV;
size_t nButtons;
size_t nXFlags;
float fLastValue;
float fCurrValue;
ws::rectangle_t sButton;
ws::rectangle_t sHole;
style::FaderColors vColors[FADER_TOTAL];
prop::SizeRange sSizeRange;
prop::RangeFloat sValue;
prop::StepFloat sStep;
prop::SizeRange sBtnWidth;
prop::Float sBtnAspect;
prop::Integer sAngle;
prop::Integer sScaleWidth;
prop::Integer sScaleBorder;
prop::Integer sScaleRadius;
prop::Boolean sScaleGradient;
prop::Integer sBtnBorder;
prop::Integer sBtnRadius;
prop::Boolean sBtnGradient;
prop::Pointer sBtnPointer;
prop::Float sBalance;
prop::Float sScaleBrightness;
prop::Boolean sBalanceColorCustom;
prop::Boolean sInvertMouseVScroll;
prop::Boolean sActive;
protected:
float limit_value(float value);
float get_normalized_value();
void update();
void update_cursor_state(ssize_t x, ssize_t y, bool set);
float update_value(float value);
void sync_button_pos();
style::FaderColors *select_colors();
protected:
static status_t slot_begin_edit(Widget *sender, void *ptr, void *data);
static status_t slot_on_change(Widget *sender, void *ptr, void *data);
static status_t slot_end_edit(Widget *sender, void *ptr, void *data);
protected:
virtual void size_request(ws::size_limit_t *r) override;
virtual void property_changed(Property *prop) override;
virtual void realize(const ws::rectangle_t *r) override;
public:
explicit Fader(Display *dpy);
Fader(const Fader &) = delete;
Fader(Fader &&) = delete;
virtual ~Fader() override;
Fader & operator = (const Fader &) = delete;
Fader & operator = (Fader &&) = delete;
virtual status_t init() override;
public:
LSP_TK_PROPERTY(Color, button_color, &vColors[FADER_0].sBtnColor);
LSP_TK_PROPERTY(Color, button_border_color, &vColors[FADER_0].sBtnBorderColor);
LSP_TK_PROPERTY(Color, scale_color, &vColors[FADER_0].sScaleColor);
LSP_TK_PROPERTY(Color, scale_border_color, &vColors[FADER_0].sScaleBorderColor);
LSP_TK_PROPERTY(Color, balance_color, &vColors[FADER_0].sBalanceColor);
LSP_TK_PROPERTY(Color, inactive_button_color, &vColors[FADER_1].sBtnColor);
LSP_TK_PROPERTY(Color, inactive_button_border_color, &vColors[FADER_1].sBtnBorderColor);
LSP_TK_PROPERTY(Color, inactive_scale_color, &vColors[FADER_1].sScaleColor);
LSP_TK_PROPERTY(Color, inactive_scale_border_color, &vColors[FADER_1].sScaleBorderColor);
LSP_TK_PROPERTY(Color, inactive_balance_color, &vColors[FADER_1].sBalanceColor);
LSP_TK_PROPERTY(SizeRange, size, &sSizeRange);
LSP_TK_PROPERTY(RangeFloat, value, &sValue);
LSP_TK_PROPERTY(StepFloat, step, &sStep);
LSP_TK_PROPERTY(SizeRange, button_width, &sBtnWidth);
LSP_TK_PROPERTY(Float, button_aspect, &sBtnAspect);
LSP_TK_PROPERTY(Pointer, button_pointer, &sBtnPointer);
LSP_TK_PROPERTY(Integer, angle, &sAngle);
LSP_TK_PROPERTY(Integer, scale_width, &sScaleWidth);
LSP_TK_PROPERTY(Integer, scale_border, &sScaleBorder);
LSP_TK_PROPERTY(Integer, scale_radius, &sScaleRadius);
LSP_TK_PROPERTY(Boolean, scale_gradient, &sScaleGradient);
LSP_TK_PROPERTY(Integer, button_border, &sBtnBorder);
LSP_TK_PROPERTY(Integer, button_radius, &sBtnRadius);
LSP_TK_PROPERTY(Boolean, button_gradient, &sBtnGradient);
LSP_TK_PROPERTY(Float, balance, &sBalance);
LSP_TK_PROPERTY(Float, scale_brightness, &sScaleBrightness);
LSP_TK_PROPERTY(Boolean, balance_color_custom, &sBalanceColorCustom);
LSP_TK_PROPERTY(Boolean, invert_mouse_vscroll, &sInvertMouseVScroll);
LSP_TK_PROPERTY(Boolean, active, &sActive);
public:
virtual status_t on_mouse_down(const ws::event_t *e) override;
virtual status_t on_mouse_up(const ws::event_t *e) override;
virtual status_t on_mouse_move(const ws::event_t *e) override;
virtual status_t on_mouse_scroll(const ws::event_t *e) override;
virtual status_t on_mouse_pointer(pointer_event_t *e) override;
virtual void draw(ws::ISurface *s) override;
public:
virtual status_t on_begin_edit();
virtual status_t on_change();
virtual status_t on_end_edit();
};
} /* namespace tk */
} /* namespace lsp */
#endif /* UI_TK_WIDGETS_LSPFADER_H_ */
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