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-rw-r--r--libreofficekit/qa/gtktiledviewer/gtv-calc-header-bar.cxx234
1 files changed, 234 insertions, 0 deletions
diff --git a/libreofficekit/qa/gtktiledviewer/gtv-calc-header-bar.cxx b/libreofficekit/qa/gtktiledviewer/gtv-calc-header-bar.cxx
new file mode 100644
index 000000000..794d15766
--- /dev/null
+++ b/libreofficekit/qa/gtktiledviewer/gtv-calc-header-bar.cxx
@@ -0,0 +1,234 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <gtk/gtk.h>
+
+#include <cmath>
+#include <iostream>
+
+#include "gtv-calc-header-bar.hxx"
+
+#include <boost/property_tree/ptree.hpp>
+#include <o3tl/unreachable.hxx>
+
+namespace {
+
+struct GtvCalcHeaderBarPrivateImpl
+{
+ /// Stores size and content of a single row header.
+ struct Header
+ {
+ int m_nSize;
+ std::string m_aText;
+ Header(int nSize, const std::string& rText)
+ : m_nSize(nSize),
+ m_aText(rText)
+ { }
+ };
+
+ std::vector<Header> m_aHeaders;
+ CalcHeaderType m_eType;
+
+ GtvCalcHeaderBarPrivateImpl()
+ : m_eType(CalcHeaderType::NONE)
+ { }
+};
+
+struct GtvCalcHeaderBarPrivate
+{
+ GtvCalcHeaderBarPrivateImpl* m_pImpl;
+
+ GtvCalcHeaderBarPrivateImpl* operator->()
+ {
+ return m_pImpl;
+ }
+};
+
+}
+
+#if defined __clang__
+#if __has_warning("-Wdeprecated-volatile")
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-volatile"
+#endif
+#endif
+G_DEFINE_TYPE_WITH_PRIVATE(GtvCalcHeaderBar, gtv_calc_header_bar, GTK_TYPE_DRAWING_AREA);
+#if defined __clang__
+#if __has_warning("-Wdeprecated-volatile")
+#pragma clang diagnostic pop
+#endif
+#endif
+
+static const int ROW_HEADER_WIDTH = 50;
+static const int COLUMN_HEADER_HEIGHT = 20;
+
+static GtvCalcHeaderBarPrivate&
+getPrivate(GtvCalcHeaderBar* headerbar)
+{
+ return *static_cast<GtvCalcHeaderBarPrivate*>(gtv_calc_header_bar_get_instance_private(headerbar));
+}
+
+static void
+gtv_calc_header_bar_init(GtvCalcHeaderBar* bar)
+{
+ GtvCalcHeaderBarPrivate& priv = getPrivate(bar);
+ priv.m_pImpl = new GtvCalcHeaderBarPrivateImpl();
+}
+
+static void
+gtv_calc_header_bar_finalize(GObject* object)
+{
+ GtvCalcHeaderBarPrivate& priv = getPrivate(GTV_CALC_HEADER_BAR(object));
+
+ delete priv.m_pImpl;
+ priv.m_pImpl = nullptr;
+
+ G_OBJECT_CLASS (gtv_calc_header_bar_parent_class)->finalize (object);
+}
+
+static void gtv_calc_header_bar_draw_text(cairo_t* pCairo, const GdkRectangle& rRectangle, const std::string& rText)
+{
+ cairo_text_extents_t extents;
+ cairo_text_extents(pCairo, rText.c_str(), &extents);
+ // Cairo reference point for text is the bottom left corner.
+ cairo_move_to(pCairo, rRectangle.x + rRectangle.width / 2 - extents.width / 2, rRectangle.y + rRectangle.height / 2 + extents.height / 2);
+ cairo_show_text(pCairo, rText.c_str());
+}
+
+static bool gtv_calc_header_bar_draw_impl(GtkWidget* pWidget, cairo_t* pCairo)
+{
+ GtvCalcHeaderBar* self = GTV_CALC_HEADER_BAR(pWidget);
+ GtvCalcHeaderBarPrivate& priv = getPrivate(GTV_CALC_HEADER_BAR(self));
+ cairo_set_source_rgb(pCairo, 0, 0, 0);
+
+ int nPrevious = 0;
+ for (const GtvCalcHeaderBarPrivateImpl::Header& rHeader : priv->m_aHeaders)
+ {
+ GdkRectangle aRectangle;
+ if (priv->m_eType == CalcHeaderType::ROW)
+ {
+ aRectangle.x = 0;
+ aRectangle.y = nPrevious;
+ aRectangle.width = ROW_HEADER_WIDTH - 1;
+ aRectangle.height = rHeader.m_nSize - nPrevious;
+ // Left line.
+ cairo_rectangle(pCairo, aRectangle.x, aRectangle.y, 1, aRectangle.height);
+ cairo_fill(pCairo);
+ // Bottom line.
+ cairo_rectangle(pCairo, aRectangle.x, aRectangle.y + aRectangle.height, aRectangle.width, 1);
+ cairo_fill(pCairo);
+ // Right line.
+ cairo_rectangle(pCairo, aRectangle.width, aRectangle.y, 1, aRectangle.height);
+ cairo_fill(pCairo);
+ }
+ else if (priv->m_eType == CalcHeaderType::COLUMN)
+ {
+ aRectangle.x = nPrevious;
+ aRectangle.y = 0;
+ aRectangle.width = rHeader.m_nSize - nPrevious;
+ aRectangle.height = COLUMN_HEADER_HEIGHT - 1;
+ // Top line.
+ cairo_rectangle(pCairo, aRectangle.x, aRectangle.y, aRectangle.width, 1);
+ cairo_fill(pCairo);
+ // Right line.
+ cairo_rectangle(pCairo, aRectangle.x + aRectangle.width , aRectangle.y, 1, aRectangle.height);
+ cairo_fill(pCairo);
+ // Bottom line.
+ cairo_rectangle(pCairo, aRectangle.x, aRectangle.height, aRectangle.width, 1);
+ cairo_fill(pCairo);
+ }
+ else
+ {
+ O3TL_UNREACHABLE; // should never happen
+ }
+
+ gtv_calc_header_bar_draw_text(pCairo, aRectangle, rHeader.m_aText);
+ nPrevious = rHeader.m_nSize;
+ if (rHeader.m_nSize > self->m_nSizePixel)
+ break;
+ }
+
+ if (priv->m_aHeaders.empty() && priv->m_eType == CalcHeaderType::CORNER)
+ {
+ GdkRectangle aRectangle;
+ aRectangle.x = 0;
+ aRectangle.y = 0;
+ aRectangle.width = ROW_HEADER_WIDTH - 1;
+ aRectangle.height = COLUMN_HEADER_HEIGHT - 1;
+ cairo_rectangle(pCairo, aRectangle.x, aRectangle.y, aRectangle.width, aRectangle.height);
+ cairo_stroke(pCairo);
+ }
+
+ return false;
+}
+
+static gboolean
+gtv_calc_header_bar_draw(GtkWidget* bar, cairo_t* pCairo)
+{
+ return gtv_calc_header_bar_draw_impl(bar, pCairo);
+}
+
+static void
+gtv_calc_header_bar_class_init(GtvCalcHeaderBarClass* klass)
+{
+ GTK_WIDGET_CLASS(klass)->draw = gtv_calc_header_bar_draw;
+ G_OBJECT_CLASS(klass)->finalize = gtv_calc_header_bar_finalize;
+}
+
+void gtv_calc_header_bar_configure(GtvCalcHeaderBar* bar, const boost::property_tree::ptree* values)
+{
+ GtvCalcHeaderBarPrivate& priv = getPrivate(bar);
+ priv->m_aHeaders.clear();
+
+ if (values)
+ {
+ boost::property_tree::ptree val = *values;
+ try
+ {
+ for (const boost::property_tree::ptree::value_type& rValue : val)
+ {
+ int nSize = std::round(std::atof(rValue.second.get<std::string>("size").c_str()));
+ if (nSize >= bar->m_nPositionPixel)
+ {
+ const int nScrolledSize = nSize - bar->m_nPositionPixel;
+ GtvCalcHeaderBarPrivateImpl::Header aHeader(nScrolledSize, rValue.second.get<std::string>("text"));
+ priv->m_aHeaders.push_back(aHeader);
+ }
+ }
+ }
+ catch (boost::property_tree::ptree_bad_path& rException)
+ {
+ std::cerr << "gtv_calc_header_bar_configure: " << rException.what() << std::endl;
+ }
+ }
+ gtk_widget_show(GTK_WIDGET(bar));
+ gtk_widget_queue_draw(GTK_WIDGET(bar));
+}
+
+void
+gtv_calc_header_bar_set_type_and_width(GtvCalcHeaderBar* bar, CalcHeaderType eType)
+{
+ // TODO: Install type property for this class
+ GtvCalcHeaderBarPrivate& priv = getPrivate(bar);
+ priv->m_eType = eType;
+
+ if (eType == CalcHeaderType::ROW)
+ gtk_widget_set_size_request(GTK_WIDGET(bar), ROW_HEADER_WIDTH, -1);
+ else if (eType == CalcHeaderType::COLUMN)
+ gtk_widget_set_size_request(GTK_WIDGET(bar), -1, COLUMN_HEADER_HEIGHT);
+}
+
+GtkWidget*
+gtv_calc_header_bar_new()
+{
+ return GTK_WIDGET(g_object_new(GTV_TYPE_CALC_HEADER_BAR,
+ nullptr));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */