99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/*
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* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _WIDGETS_ARDOUR_SPACER_H_
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#define _WIDGETS_ARDOUR_SPACER_H_
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#include "gtkmm2ext/cairo_widget.h"
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#include "widgets/visibility.h"
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namespace ArdourWidgets {
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class LIBWIDGETS_API ArdourVSpacer : public CairoWidget
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{
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public:
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ArdourVSpacer (float r = 0.75f);
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protected:
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void render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*) {
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float height = get_height();
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float h = height * ratio;
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float t = .5f * (height - h);
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ctx->rectangle (0, t, 1, h);
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ctx->set_source_rgb (0, 0, 0);
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ctx->fill ();
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}
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void on_size_request (Gtk::Requisition* req) {
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req->width = 1;
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req->height = 0;
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CairoWidget::on_size_request (req);
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}
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float ratio;
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};
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class LIBWIDGETS_API ArdourDropShadow : public CairoWidget
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{
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public:
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enum ShadowMode {
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DropShadowLongSideOnly,
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DropShadowBoth,
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};
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ArdourDropShadow (ShadowMode m = DropShadowLongSideOnly, float a = 0.55f);
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void set_mode(ShadowMode m) {mode = m;}
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protected:
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void render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*) {
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float width = get_width();
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float height = get_height();
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Cairo::RefPtr<Cairo::LinearGradient> _gradient;
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if ( (width>height) || mode == DropShadowBoth ) {
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_gradient = Cairo::LinearGradient::create (0, 0, 0, 4);
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_gradient->add_color_stop_rgba (0, 0, 0, 0, alpha);
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_gradient->add_color_stop_rgba (1, 0, 0, 0, 0);
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ctx->set_source (_gradient);
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ctx->rectangle (0, 0, width, 4);
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ctx->fill ();
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}
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if ( (height>width) || mode == DropShadowBoth ) {
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_gradient = Cairo::LinearGradient::create (0, 0, 4, 0);
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_gradient->add_color_stop_rgba (0, 0, 0, 0, alpha);
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_gradient->add_color_stop_rgba (1, 0, 0, 0, 0);
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ctx->set_source (_gradient);
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ctx->rectangle (0, 0, 4, height);
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ctx->fill ();
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}
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}
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float alpha;
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ShadowMode mode;
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};
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} /* end namespace */
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#endif
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