93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
#include "Painter.hpp"
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#include "RGB.hpp"
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#include "pango/pango-layout.h"
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#include "pango/pango-types.h"
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namespace Raven {
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void Painter::rounded_rectangle(Box &geometry, double border_radius) {
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double aspect = 1.0;
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double radius = border_radius / aspect;
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double degrees = M_PI / 180.0;
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double x = geometry.get_x();
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double y = geometry.get_y();
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double w = geometry.get_width();
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double h = geometry.get_height();
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m_cairo->begin_new_sub_path();
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m_cairo->arc(x + w - radius, y + radius, radius, -90 * degrees, 0 * degrees);
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m_cairo->arc(x + w - radius, y + h - radius, radius, 0 * degrees, 90 * degrees);
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m_cairo->arc(x + radius, y + h - radius, radius, 90 * degrees, 180 * degrees);
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m_cairo->arc(x + radius, y + radius, radius, 180 * degrees, 270 * degrees);
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m_cairo->close_path();
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}
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bool Painter::text(Point &where, std::string &text) {
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if (m_pango_font_description == nullptr)
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return false;
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PangoLayout *layout = pango_cairo_create_layout(m_cairo->cobj());
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pango_layout_set_font_description(layout, m_pango_font_description);
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pango_layout_set_text(layout, text.c_str(), -1);
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m_cairo->move_to(where.get_x(), where.get_y());
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pango_cairo_show_layout(m_cairo->cobj(), layout);
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g_object_unref(layout);
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return true;
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}
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bool Painter::text(Box &geometry, std::string &text, PaintTextAlign align, PangoEllipsizeMode ellipsize) {
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if (m_pango_font_description == nullptr)
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return false;
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PangoLayout *layout = pango_cairo_create_layout(m_cairo->cobj());
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int font_width;
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int font_height;
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pango_layout_set_font_description(layout, m_pango_font_description);
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pango_layout_set_width(layout, pango_units_from_double(geometry.get_width()));
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pango_layout_set_height(layout, pango_units_from_double(geometry.get_height()));
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pango_layout_set_ellipsize(layout, ellipsize);
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pango_layout_set_text(layout, text.c_str(), -1);
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pango_layout_get_pixel_size(layout, &font_width, &font_height);
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double x = -1;
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double y = geometry.get_y() + ((geometry.get_height() - font_height) / 2);
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if (align == PaintTextAlign::Center) {
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x = geometry.get_x() + ((geometry.get_width() - font_width) / 2);
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} else {
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x = geometry.get_x();
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}
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m_cairo->move_to(x, y);
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pango_cairo_show_layout(m_cairo->cobj(), layout);
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g_object_unref(layout);
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return true;
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}
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void Painter::source_rgb(RGB &source_rgb) {
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m_cairo->set_source_rgb(source_rgb.get_r(), source_rgb.get_g(), source_rgb.get_b());
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}
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void Painter::fill() {
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m_cairo->fill();
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}
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void Painter::begin_paint_group() {
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m_cairo->push_group();
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}
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void Painter::end_paint_group() {
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m_cairo->pop_group_to_source();
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m_cairo->paint();
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}
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}
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