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a7051174a9
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a7051174a9 | ||
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4d7cb99fb1 |
6 changed files with 105 additions and 1 deletions
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@ -11,6 +11,7 @@ Raven is a simple user interface library.
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- pango
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- pango
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- pangocairo
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- pangocairo
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- xlib
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- xlib
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- librsvg
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# Installing
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# Installing
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@ -10,11 +10,13 @@ add_project_arguments('-g3', language : 'cpp')
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cairomm_dep = dependency('cairomm-1.0')
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cairomm_dep = dependency('cairomm-1.0')
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pangocairo_dep = dependency('pangocairo')
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pangocairo_dep = dependency('pangocairo')
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xlib_dep = dependency('x11')
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xlib_dep = dependency('x11')
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librsvg_dep = dependency('librsvg-2.0')
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raven_dependencies = [
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raven_dependencies = [
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cairomm_dep,
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cairomm_dep,
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xlib_dep,
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xlib_dep,
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pangocairo_dep
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pangocairo_dep,
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librsvg_dep
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]
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]
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headers = include_directories('src')
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headers = include_directories('src')
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@ -25,6 +27,7 @@ raven_source_files = [
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'./src/Painter.cpp',
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'./src/Painter.cpp',
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'./src/Window.cpp',
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'./src/Window.cpp',
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'./src/Widget.cpp',
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'./src/Widget.cpp',
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'./src/SvgWidget.cpp',
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'./src/ScrollContainer.cpp',
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'./src/ScrollContainer.cpp',
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'./src/Button.cpp',
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'./src/Button.cpp',
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'./src/DocumentLayout.cpp',
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'./src/DocumentLayout.cpp',
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@ -52,6 +55,7 @@ raven_header_files = [
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'./src/ScrollContainer.hpp',
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'./src/ScrollContainer.hpp',
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'./src/Styles.hpp',
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'./src/Styles.hpp',
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'./src/Widget.hpp',
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'./src/Widget.hpp',
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'./src/SvgWidget.hpp',
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'./src/Window.hpp'
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'./src/Window.hpp'
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]
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]
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59
src/SvgWidget.cpp
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59
src/SvgWidget.cpp
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@ -0,0 +1,59 @@
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#include "SvgWidget.hpp"
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#include "cairomm/context.h"
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#include "cairomm/enums.h"
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#include "cairomm/surface.h"
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namespace Raven {
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void SvgWidget::on_init() {
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m_file = g_file_new_for_path(m_path.c_str());
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m_handle = rsvg_handle_new_from_gfile_sync(m_file, RSVG_HANDLE_FLAGS_NONE, NULL, NULL);
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set_style(&clear_widget_style);
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if (!m_handle) {
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std::cerr << "could not load svg file: " << m_path << std::endl;
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exit(EXIT_FAILURE);
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}
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set_did_init(true);
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}
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void SvgWidget::on_after_layout() {
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auto width = rect().width();
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auto height = rect().height();
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if (width == m_known_width && height == m_known_height) {
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return;
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}
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m_known_width = width;
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m_known_height = height;
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RsvgRectangle viewport = {
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.x = 0.0,
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.y = 0.0,
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.width = width,
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.height = height,
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};
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m_image_surface = Cairo::ImageSurface::create(Cairo::Format::FORMAT_ARGB32, width, height);
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m_image_context = Cairo::Context::create(m_image_surface);
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rsvg_handle_render_document(m_handle, m_image_context->cobj(), &viewport, NULL);
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}
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void SvgWidget::on_paint() {
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if (!m_image_surface)
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return;
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painter()->cairo()->set_source(m_image_surface, 0, 0);
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painter()->cairo()->paint();
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}
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SvgWidget::~SvgWidget() {
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g_object_unref(m_file);
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g_object_unref(m_handle);
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}
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}
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37
src/SvgWidget.hpp
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37
src/SvgWidget.hpp
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@ -0,0 +1,37 @@
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#pragma once
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#include <string>
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#include "cairomm/context.h"
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#include "cairomm/enums.h"
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#include "cairomm/refptr.h"
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#include "cairomm/surface.h"
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#include "raven/Widget.hpp"
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#include "librsvg/rsvg.h"
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namespace Raven {
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class SvgWidget : public Raven::Widget {
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public:
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SvgWidget(std::string path)
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: Raven::Widget()
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, m_path(path) {}
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~SvgWidget();
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std::string &path() { return m_path; }
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void set_path(std::string path) { m_path = path; repaint(); }
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protected:
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void on_init();
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void on_after_layout();
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void on_paint();
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private:
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std::string m_path;
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RsvgHandle *m_handle;
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GFile *m_file;
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Cairo::RefPtr<Cairo::Context> m_image_context;
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Cairo::RefPtr<Cairo::ImageSurface> m_image_surface;
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double m_known_width { 0.0 };
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double m_known_height { 0.0 };
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};
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}
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@ -202,6 +202,8 @@ void Widget::handle_relayout_subtree(RelayoutSubtreeEvent &event) {
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for (auto child : m_children) {
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for (auto child : m_children) {
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child->dispatch_event(event);
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child->dispatch_event(event);
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}
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}
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on_after_layout();
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}
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}
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void Widget::handle_mouse_move_event(MouseMoveEvent &event) {
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void Widget::handle_mouse_move_event(MouseMoveEvent &event) {
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@ -119,6 +119,7 @@ protected:
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virtual void on_activation_update(ActivationUpdateEvent &event) {}
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virtual void on_activation_update(ActivationUpdateEvent &event) {}
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virtual void on_paint() {}
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virtual void on_paint() {}
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virtual void on_layout() {}
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virtual void on_layout() {}
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virtual void on_after_layout() {}
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void set_did_init(bool did_init) { m_did_init = did_init; }
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void set_did_init(bool did_init) { m_did_init = did_init; }
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Point compute_window_relative();
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Point compute_window_relative();
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