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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:29:01 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:29:01 +0000 |
commit | 35a96bde514a8897f6f0fcc41c5833bf63df2e2a (patch) | |
tree | 657d15a03cc46bd099fc2c6546a7a4ad43815d9f /src/ui/widget/highlight-picker.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.tar.xz inkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.zip |
Adding upstream version 1.0.2.upstream/1.0.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/ui/widget/highlight-picker.cpp')
-rw-r--r-- | src/ui/widget/highlight-picker.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/ui/widget/highlight-picker.cpp b/src/ui/widget/highlight-picker.cpp new file mode 100644 index 0000000..f35e405 --- /dev/null +++ b/src/ui/widget/highlight-picker.cpp @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Authors: + * Theodore Janeczko + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include <glibmm.h> +#include <gtkmm/icontheme.h> + +#include "display/cairo-utils.h" + +#include "highlight-picker.h" + +namespace Inkscape { +namespace UI { +namespace Widget { + +HighlightPicker::HighlightPicker() : + Glib::ObjectBase(typeid(HighlightPicker)), + Gtk::CellRendererPixbuf(), + _property_active(*this, "active", 0) +{ + + property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE; +} + +HighlightPicker::~HighlightPicker() += default; + +void HighlightPicker::get_preferred_height_vfunc(Gtk::Widget& widget, + int& min_h, + int& nat_h) const +{ + Gtk::CellRendererPixbuf::get_preferred_height_vfunc(widget, min_h, nat_h); + + if (min_h) { + min_h += (min_h) >> 1; + } + + if (nat_h) { + nat_h += (nat_h) >> 1; + } +} + +void HighlightPicker::get_preferred_width_vfunc(Gtk::Widget& widget, + int& min_w, + int& nat_w) const +{ + Gtk::CellRendererPixbuf::get_preferred_width_vfunc(widget, min_w, nat_w); + + if (min_w) { + min_w += (min_w) >> 1; + } + + if (nat_w) { + nat_w += (nat_w) >> 1; + } +} + +void HighlightPicker::render_vfunc( const Cairo::RefPtr<Cairo::Context>& cr, + Gtk::Widget& widget, + const Gdk::Rectangle& background_area, + const Gdk::Rectangle& cell_area, + Gtk::CellRendererState flags ) +{ + GdkRectangle carea; + + cairo_surface_t *s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 10, 20); + cairo_t *ct = cairo_create(s); + + /* Transparent area */ + carea.x = 0; + carea.y = 0; + carea.width = 10; + carea.height = 20; + + cairo_pattern_t *checkers = ink_cairo_pattern_create_checkerboard(); + + cairo_rectangle(ct, carea.x, carea.y, carea.width, carea.height / 2); + cairo_set_source(ct, checkers); + cairo_fill_preserve(ct); + ink_cairo_set_source_rgba32(ct, _property_active.get_value()); + cairo_fill(ct); + + cairo_pattern_destroy(checkers); + + cairo_rectangle(ct, carea.x, carea.y + carea.height / 2, carea.width, carea.height / 2); + ink_cairo_set_source_rgba32(ct, _property_active.get_value() | 0x000000ff); + cairo_fill(ct); + + cairo_rectangle(ct, carea.x, carea.y, carea.width, carea.height); + ink_cairo_set_source_rgba32(ct, 0x333333ff); + cairo_set_line_width(ct, 2); + cairo_stroke(ct); + + cairo_destroy(ct); + cairo_surface_flush(s); + + GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data( cairo_image_surface_get_data(s), + GDK_COLORSPACE_RGB, TRUE, 8, + 10, 20, cairo_image_surface_get_stride(s), + ink_cairo_pixbuf_cleanup, s); + convert_pixbuf_argb32_to_normal(pixbuf); + + property_pixbuf() = Glib::wrap(pixbuf); + Gtk::CellRendererPixbuf::render_vfunc( cr, widget, background_area, cell_area, flags ); +} + +bool HighlightPicker::activate_vfunc(GdkEvent* /*event*/, + Gtk::Widget& /*widget*/, + const Glib::ustring& /*path*/, + const Gdk::Rectangle& /*background_area*/, + const Gdk::Rectangle& /*cell_area*/, + Gtk::CellRendererState /*flags*/) +{ + return false; +} + +} // namespace Widget +} // namespace UI +} // namespace Inkscape + +//should be okay to put this here +/** + * Converts GdkPixbuf's data to premultiplied ARGB. + * This function will convert a GdkPixbuf in place into Cairo's native pixel format. + * Note that this is a hack intended to save memory. When the pixbuf is in Cairo's format, + * using it with GTK will result in corrupted drawings. + */ +void +convert_pixbuf_normal_to_argb32(GdkPixbuf *pb) +{ + convert_pixels_pixbuf_to_argb32( + gdk_pixbuf_get_pixels(pb), + gdk_pixbuf_get_width(pb), + gdk_pixbuf_get_height(pb), + gdk_pixbuf_get_rowstride(pb)); +} + +/** + * Converts GdkPixbuf's data back to its native format. + * Once this is done, the pixbuf can be used with GTK again. + */ +void +convert_pixbuf_argb32_to_normal(GdkPixbuf *pb) +{ + convert_pixels_argb32_to_pixbuf( + gdk_pixbuf_get_pixels(pb), + gdk_pixbuf_get_width(pb), + gdk_pixbuf_get_height(pb), + gdk_pixbuf_get_rowstride(pb)); +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : + + |