From 3191730c3191c4379759ba0cfa3f8cab28fd470a Mon Sep 17 00:00:00 2001
From: omigamedev <omarator@gmail.com>
Date: Sat, 22 Sep 2018 19:23:17 +0200
Subject: [PATCH] add newline feature to the text node, add about window with
 credits, add about menu with submenus

---
 PanoPainter.vcxproj         |   2 +
 PanoPainter.vcxproj.filters |   6 +++
 android/CMakeLists.txt      |   1 +
 data/layout.xml             | 102 +++++++++++++++++++++++++++++++-----
 src/app.h                   |   2 +
 src/app_dialogs.cpp         |  12 +++++
 src/app_layout.cpp          |  58 ++++++++++++++++----
 src/font.cpp                |  13 +++--
 src/font.h                  |   1 +
 src/node.cpp                |   2 +
 src/node.h                  |   1 +
 src/node_about.cpp          |  26 +++++++++
 src/node_about.h            |  13 +++++
 src/node_scroll.cpp         |  10 +++-
 src/node_scroll.h           |   9 ++--
 src/node_text.cpp           |   2 +-
 src/util.cpp                |  25 +++++++++
 src/util.h                  |   2 +-
 18 files changed, 255 insertions(+), 32 deletions(-)
 create mode 100644 src/node_about.cpp
 create mode 100644 src/node_about.h

diff --git a/PanoPainter.vcxproj b/PanoPainter.vcxproj
index 55b7fa0..d1290a1 100644
--- a/PanoPainter.vcxproj
+++ b/PanoPainter.vcxproj
@@ -187,6 +187,7 @@
     <ClCompile Include="src\log.cpp" />
     <ClCompile Include="src\main.cpp" />
     <ClCompile Include="src\node.cpp" />
+    <ClCompile Include="src\node_about.cpp" />
     <ClCompile Include="src\node_border.cpp" />
     <ClCompile Include="src\node_button.cpp" />
     <ClCompile Include="src\node_button_custom.cpp" />
@@ -302,6 +303,7 @@
     <ClInclude Include="src\layout.h" />
     <ClInclude Include="src\log.h" />
     <ClInclude Include="src\node.h" />
+    <ClInclude Include="src\node_about.h" />
     <ClInclude Include="src\node_border.h" />
     <ClInclude Include="src\node_button.h" />
     <ClInclude Include="src\node_button_custom.h" />
diff --git a/PanoPainter.vcxproj.filters b/PanoPainter.vcxproj.filters
index 7be9201..f3ef843 100644
--- a/PanoPainter.vcxproj.filters
+++ b/PanoPainter.vcxproj.filters
@@ -252,6 +252,9 @@
     <ClCompile Include="src\version.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\node_about.cpp">
+      <Filter>Source Files\ui</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\app.h">
@@ -449,6 +452,9 @@
     <ClInclude Include="src\version.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\node_about.h">
+      <Filter>Header Files\ui</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="PanoPainter.rc">
diff --git a/android/CMakeLists.txt b/android/CMakeLists.txt
index e7024bd..ff4207b 100644
--- a/android/CMakeLists.txt
+++ b/android/CMakeLists.txt
@@ -56,6 +56,7 @@ add_library(
 	../src/layout.cpp
 	../src/version.cpp
 	../src/node.cpp
+	../src/node_about.cpp
 	../src/node_border.cpp
 	../src/node_button.cpp
 	../src/node_button_custom.cpp
diff --git a/data/layout.xml b/data/layout.xml
index 427e8b4..88962c4 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -583,6 +583,67 @@
     </border>
   </layout>
 
+    <!--About window-->
+  <layout id="about">
+    <border positioning="absolute" position="0 0" color=".4 .4 .4 .8" width="100%" height="100%" align="center" justify="center">
+      <border thickness="1" border-color=".2" pad="3" max-width="650">
+        <border width="100%" height="30" color=".2 .2 .2 .9" dir="row" align="center" justify="center">
+          <text text="About PanoPainter" font-face="arial" font-size="11"></text>
+        </border>
+        <border width="100%" color="0 0 0 .9" pad="10" dir="col">
+          <!--window content-->
+          <border color=".2" width="100%" height="300">
+            <scroll pad="10" margin="5" color=".3 .3 .3 .4" height="100%" dir="col" wrap="0" shrink="1">
+              <text margin="0 0 0 5" font-face="arial" font-size="11" text=
+"
+--------------------------------------------------- ABOUT PANOPAINTER -----------------------------------------------------
+PanoPainter - Copyright 2018 OmixLab Ltd
+  Thanks for using PanoPainter.
+  My name is Omar Mohamed Ali Mudhir and I'm the developer of this unique application.
+  In the late 2016 Facebook started to make it possible for users to post 360 content
+  captured from the first 360 cameras born after the advent of the VR to the market.
+  
+    That's where me and a bounch or artists started to wonder about making art in 360.
+  I then started coding in my spare time to create something that would have helped 
+  artists in the long process of creating a panoramic painting (panopainting).
+  
+  Today this software has evolved a lot and reached a mature version ready for early 
+  adopters that want to break the rules of traditional digital art and get into the 
+  future of immersive painting.
+  
+  Feel free to follow me on:
+  - Instagram: @panopainter
+  - Twitter: @panopainter
+  - Facebook: fb.me/panopainter
+  
+                      
+------------------------------------------------- FREE SOFTWARE LICENSES -------------------------------------------------
+Free brushes:
+  The free brushes are provided by the freely available Brush Pack v3 from Fenris31
+  Link: https://www.deviantart.com/fenris31/art/Brush-Pack-v3-549566626
+  
+Roboto Font License:
+  Copyright 2018 OmixLab Ltd
+  Licensed under the Apache License, Version 2.0 (the 'License');
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+      http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an 'AS IS' BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License."/>
+            </scroll>
+          </border>
+          <!--footer buttons-->
+          <node height="40" grow="1" dir="row" align="flex-end" justify="flex-end">
+            <button id="btn-ok" text="Ok" width="100" height="30" margin="0 10 0 0"/>
+          </node>
+        </border>
+      </border>
+    </border>
+  </layout>
+
   <!--popup menu-->
   <layout id="popup-menu">
     <popup-menu positioning="absolute" position="100 100" width="150" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
@@ -611,7 +672,7 @@
 
   <!--file menu-->
   <layout id="file-menu">
-    <popup-menu positioning="absolute" position="100 100" width="200" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
+    <popup-menu positioning="absolute" position="100 100" width="210" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
       <!--
       <button-custom height="30" align="center" color=".2" pad="0 20 0 10" dir="row">
         <checkbox width="20" height="20"/>
@@ -678,10 +739,10 @@
         <icon icon="weather_clouds" width="20"/>
         <text text="Cloud Browse" grow="1" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
-      <button-custom text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+      <!--<button-custom text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
         <icon width="20"/>
         <text text="Quit" grow="1" margin="0 0 0 5" font-face="arial" font-size="11"/>
-      </button-custom>
+      </button-custom>-->
     </popup-menu>
   </layout>
 
@@ -705,13 +766,13 @@
 
   <!--layers menu-->
   <layout id="layers-menu">
-    <popup-menu positioning="absolute" position="100 100" width="250" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
+    <popup-menu positioning="absolute" position="100 100" width="270" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
       <button-custom id="layer-clear" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
         <icon icon="cancel" width="20"/>
         <text id="menu-label" text="Clear layer" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
       <button-custom id="clear-grids" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
-        <icon icon="add" width="20"/>
+        <icon icon="bin" width="20"/>
         <text text="Clear grids" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
       <button-custom id="layer-rename" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
@@ -729,20 +790,39 @@
   <layout id="timelapse-menu">
     <popup-menu positioning="absolute" position="100 100" width="150" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
       <button-custom id="timelapse-start" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
-        <icon icon="cancel" width="20"/>
+        <icon icon="camera" width="20"/>
         <text id="menu-label" text="Start Recording" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
       <button-custom id="timelapse-clear" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
-        <icon icon="cancel" width="20"/>
+        <icon icon="bin" width="20"/>
         <text id="menu-label" text="Clear Frames" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
       <button-custom id="timelapse-export" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
-        <icon icon="cancel" width="20"/>
+        <icon icon="film_save" width="20"/>
         <text id="menu-label" text="Export MP4" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
     </popup-menu>
   </layout>
 
+  
+  <!-- about menu -->
+  <layout id="about-menu">
+    <popup-menu positioning="absolute" position="100 100" width="200" thickness="1" border-color=".1" color=".4 .4 .4 .8" dir="col">
+      <button-custom id="about-doc" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+        <icon icon="help" width="20"/>
+        <text id="menu-label" text="Help Guide" margin="0 0 0 5" font-face="arial" font-size="11"/>
+      </button-custom>
+      <button-custom id="about-app" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+        <icon icon="application_view_gallery" width="20"/>
+        <text id="menu-label" text="About PanoPainter" margin="0 0 0 5" font-face="arial" font-size="11"/>
+      </button-custom>
+      <button-custom id="about-news" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+        <icon icon="bug" width="20"/>
+        <text id="menu-label" text="What's new?" margin="0 0 0 5" font-face="arial" font-size="11"/>
+      </button-custom>
+    </popup-menu>
+  </layout>
+
   <!--main-->
   <layout id="main">
     <node dir="col" wrap="0" width="100%" height="100%" pad="0">
@@ -768,7 +848,7 @@
           <text id="txt-rec" text="" font-face="arial" font-size="11" margin="0 10 0 0" color=".6 .6 .6 1"/>
           <text id="txt-memory" text="History memory: 0.00 Mb" font-face="arial" font-size="11" margin="0 5 0 0" color=".6 .6 .6 1"/>
           <button-custom id="btn-clean-memory" margin="0 20 0 0">
-            <icon icon="delete" width="20"/>
+            <icon icon="cancel" width="20"/>
           </button-custom>
           <text id="version" text="PanoPainter" font-face="arial" font-size="11" margin="0 10 0 0" color=".2 .5 1 1"/>
         </node>
@@ -795,12 +875,10 @@
         <button-custom id="menu-timelapse" width="80" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
           <text text="Timelapse" font-face="arial" font-size="11"/>
         </button-custom>
-        <!--
         <button-custom id="menu-about" width="60" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
           <text text="About" font-face="arial" font-size="11"/>
         </button-custom>
-        <button id="btn-anim" width="70" height="100%" margin="1 0 0 10" text="Animate"/>
-        -->
+        <!--<button id="btn-anim" width="70" height="100%" margin="1 0 0 10" text="Animate"/>-->
         <node dir="row" justify="center" grow="1">
           <button-custom id="btn-pen" width="50" height="100%" margin="0 0 0 5" thickness="1" border-color="0 0 0 1" pad="2">
             <image path="data/ui/pen.png" width="100%" height="100%" align="center" justify="flex-end"/>
diff --git a/src/app.h b/src/app.h
index 969b9b9..ec5b1c7 100644
--- a/src/app.h
+++ b/src/app.h
@@ -139,6 +139,8 @@ public:
     void init_menu_edit();
     void init_menu_layer();
     void init_menu_timelapse();
+    void init_menu_about();
+    void dialog_about();
     void dialog_newdoc();
     void dialog_save();
     void dialog_save_ver();
diff --git a/src/app_dialogs.cpp b/src/app_dialogs.cpp
index 5aa8bfa..d2f3235 100644
--- a/src/app_dialogs.cpp
+++ b/src/app_dialogs.cpp
@@ -3,6 +3,7 @@
 #include "node_dialog_open.h"
 #include "node_dialog_browse.h"
 #include "node_dialog_cloud.h"
+#include "node_about.h"
 
 std::shared_ptr<NodeProgressBar> App::show_progress(const std::string& title)
 {
@@ -17,6 +18,17 @@ std::shared_ptr<NodeProgressBar> App::show_progress(const std::string& title)
     return pb;
 }
 
+void App::dialog_about()
+{
+    auto dialog = std::make_shared<NodeAbout>();
+    dialog->m_manager = &layout;
+    dialog->init();
+    dialog->create();
+    dialog->loaded();
+
+    layout[main_id]->add_child(dialog);
+    layout[main_id]->update();
+}
 void App::dialog_newdoc()
 {
     auto show_dialog = [this] {
diff --git a/src/app_layout.cpp b/src/app_layout.cpp
index ff2618c..43bca3d 100644
--- a/src/app_layout.cpp
+++ b/src/app_layout.cpp
@@ -5,6 +5,7 @@
 #include "node_text.h"
 #include "node_progress_bar.h"
 #include "node_dialog_picker.h"
+#include "node_about.h"
 
 using namespace ui;
 
@@ -520,6 +521,53 @@ void App::init_menu_timelapse()
     }
 }
 
+void App::init_menu_about()
+{
+    if (auto* menu_file = layout[main_id]->find<NodeButtonCustom>("menu-about"))
+    {
+        menu_file->on_click = [=](Node*) {
+            glm::vec2 pos = menu_file->m_pos + glm::vec2(0, menu_file->m_size.y);
+            popup = (NodePopupMenu*)layout[const_hash("about-menu")]->m_children[0]->clone();
+            popup->update();
+            if (YGNodeStyleGetDirection(layout[main_id]->y_node) == YGDirectionRTL)
+                pos.x = pos.x - popup->m_size.x + menu_file->m_size.x;
+            popup->SetPositioning(YGPositionTypeAbsolute);
+            popup->SetPosition(pos.x, pos.y);
+            layout[main_id]->add_child(popup);
+            layout[main_id]->update();
+            popup->mouse_capture();
+            popup->m_mouse_ignore = false;
+            popup->m_flood_events = true;
+            popup->m_capture_children = false;
+
+            popup->find<NodeButtonCustom>("about-app")->on_click = [this](Node*) {
+                dialog_about();
+                popup->mouse_release();
+                popup->destroy();
+            };
+
+            popup->find<NodeButtonCustom>("about-doc")->on_click = [this](Node*) {
+                popup->mouse_release();
+                popup->destroy();
+            };
+
+            if (auto item = popup->find<NodeButtonCustom>("about-news"))
+            {
+                if (auto text = item->find<NodeText>("menu-label"))
+                {
+                    static char label[128];
+                    sprintf(label, "What's new in %d.%d.%d?", g_version_major, g_version_minor, g_version_fix);
+                    text->set_text(label);
+                }
+                item->on_click = [this](Node*) {
+                    popup->mouse_release();
+                    popup->destroy();
+                };
+            }
+        };
+    }
+}
+
 void App::brush_update()
 {
 //     brushes->select_brush(canvas->m_brush.id);
@@ -643,6 +691,7 @@ void App::initLayout()
         init_menu_edit();
         init_menu_layer();
         init_menu_timelapse();
+        init_menu_about();
 
         // set version string
         if (auto* version_label = layout[main_id]->find<NodeText>("version"))
@@ -650,15 +699,6 @@ void App::initLayout()
             version_label->set_text(g_version);
         }
 
-
-        if (auto* menu_entry = layout[main_id]->find<NodeButtonCustom>("menu-about"))
-        {
-            menu_entry->on_click = [=](Node*) {
-//                 int x = 0;
-//                 sin(time(0) / x);
-            };
-        }
-
         Brush b;
         int br_idx = brushes->find_brush("Round-Hard");
         b.m_tex_id = brushes->get_texture_id(br_idx);
diff --git a/src/font.cpp b/src/font.cpp
index b1f4a47..aafdd1d 100644
--- a/src/font.cpp
+++ b/src/font.cpp
@@ -19,6 +19,7 @@ bool Font::load(const char* ttf, int font_size)
         stbtt_BakeFontBitmap(file.m_data, 0, (float)font_size*2, bitmap.get(), w, h, start_char, num_chars, chars.data());
         font_tex.create(w, h, GL_R8, GL_RED, bitmap.get());
         file.close();
+        size = font_size;
         return true;
     }
     return false;
@@ -71,6 +72,12 @@ void TextMesh::update(kFont id, const char* text)
         glm::vec2 bbmax(-FLT_MAX);
         for (int i = 0; i < len; i++)
         {
+            if (text[i] == '\n')
+            {
+                x = 0;
+                y += f.size *2;
+                continue;
+            }
             int c = text[i] - f.start_char;
             stbtt_aligned_quad q;
             stbtt_GetBakedQuad((stbtt_bakedchar*)f.chars.data(), f.w, f.h, c, &x, &y, &q, true);
@@ -88,10 +95,8 @@ void TextMesh::update(kFont id, const char* text)
             bbmin = glm::min(bbmin, { q.x0/2.f, q.y0/2.f });
             bbmax = glm::max(bbmax, { q.x1/2.f, q.y1/2.f });
         }
-        for (int i = 0; i < len*4; i++)
-        {
-            v[i] -= glm::vec4(bbmin, 0, 0);
-        }
+        for (auto& vi : v)
+            vi -= glm::vec4(bbmin, 0, 0);
         bb = bbmax - bbmin;
         font_array_count = (int)idx.size();
         glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, font_buffers[1]);
diff --git a/src/font.h b/src/font.h
index a34b2be..7ba2128 100644
--- a/src/font.h
+++ b/src/font.h
@@ -16,6 +16,7 @@ public:
     const int h = 512;
     const int num_chars = 96;
     const int start_char = 32;
+    int size = 0;
     stbtt_fontinfo font;
     Texture2D font_tex;
     std::vector<stbtt_bakedchar> chars;
diff --git a/src/node.cpp b/src/node.cpp
index 9c53c26..705296c 100644
--- a/src/node.cpp
+++ b/src/node.cpp
@@ -31,6 +31,7 @@
 #include "node_colorwheel.h"
 #include "node_dialog_picker.h"
 #include "node_panel_grid.h"
+#include "node_about.h"
 
 void Node::async_start()
 {
@@ -897,6 +898,7 @@ void Node::load_internal(const tinyxml2::XMLElement* x_node)
             CASE(kWidget::DialogCloudItem, NodeDialogCloudItem);
             CASE(kWidget::ColorWheel, NodeColorWheel);
             CASE(kWidget::ColorPicker, NodeColorPicker);
+            CASE(kWidget::About, NodeAbout);
 #undef  CASE
         case kWidget::Ref:
         {
diff --git a/src/node.h b/src/node.h
index 026175e..522cc2a 100644
--- a/src/node.h
+++ b/src/node.h
@@ -81,6 +81,7 @@ enum class kWidget : uint16_t
     DialogCloudItem = const_hash("dialog-cloud-item"),
     ColorWheel = const_hash("colorwheel"),
     ColorPicker = const_hash("color-picker"),
+    About = const_hash("about"),
 };
 
 class Node
diff --git a/src/node_about.cpp b/src/node_about.cpp
new file mode 100644
index 0000000..4bd079d
--- /dev/null
+++ b/src/node_about.cpp
@@ -0,0 +1,26 @@
+#include "pch.h"
+#include "log.h"
+#include "node_about.h"
+#include "layout.h"
+
+Node* NodeAbout::clone_instantiate() const
+{
+    return new NodeAbout();
+}
+
+void NodeAbout::init()
+{
+    SetPosition(0, 0);
+    SetWidthP(100);
+    SetHeightP(100);
+    SetPositioning(YGPositionTypeAbsolute);
+    m_template = (*m_manager)[const_hash("about")]->m_children[0]->clone();
+    add_child(m_template);
+    btn_ok = m_template->find<NodeButton>("btn-ok");
+    btn_ok->on_click = [&](Node*) { destroy(); };
+}
+
+kEventResult NodeAbout::handle_event(Event* e)
+{
+    return kEventResult::Consumed;
+}
diff --git a/src/node_about.h b/src/node_about.h
new file mode 100644
index 0000000..efbdba2
--- /dev/null
+++ b/src/node_about.h
@@ -0,0 +1,13 @@
+#pragma once
+#include "node.h"
+#include "node_button.h"
+
+class NodeAbout : public Node
+{
+    Node* m_template;
+    NodeButton* btn_ok;
+public:
+    virtual Node* clone_instantiate() const override;
+    virtual void init() override;
+    virtual kEventResult handle_event(Event* e) override;
+};
diff --git a/src/node_scroll.cpp b/src/node_scroll.cpp
index a8c7b5a..050e0e8 100644
--- a/src/node_scroll.cpp
+++ b/src/node_scroll.cpp
@@ -3,6 +3,14 @@
 #include "node_scroll.h"
 #include "event.h"
 
+NodeScroll::NodeScroll()
+{
+    m_drag_start = glm::vec2(0);
+    m_offset_start = glm::vec2(0);
+    m_offset = glm::vec2(0);
+    m_mask = glm::vec2(0, 1);
+}
+
 Node* NodeScroll::clone_instantiate() const
 {
     return new NodeScroll;
@@ -43,7 +51,7 @@ kEventResult NodeScroll::handle_event(Event* e)
         m_dragging = false;
         break;
      case kEventType::MouseScroll:
-        m_offset += me->m_scroll_delta * 50;
+        m_offset += me->m_scroll_delta * 50 * m_mask;
         fix_scroll();
         break;
     case kEventType::GestureStart:
diff --git a/src/node_scroll.h b/src/node_scroll.h
index 14bdd1b..53d6d09 100644
--- a/src/node_scroll.h
+++ b/src/node_scroll.h
@@ -4,11 +4,12 @@
 class NodeScroll : public NodeBorder
 {
     bool m_dragging = false;
-    glm::vec2 m_drag_start;
-    glm::vec2 m_offset_start;
-    glm::vec2 m_offset;
-    glm::vec2 m_mask{ 0, 1 };
+    glm::vec2 m_drag_start = glm::vec2(0);
+    glm::vec2 m_offset_start = glm::vec2(0);
+    glm::vec2 m_offset = glm::vec2(0);
+    glm::vec2 m_mask = glm::vec2(1, 0);
 public:
+    NodeScroll();
     virtual Node* clone_instantiate() const override;
     virtual kEventResult handle_event(Event* e) override;
     void fix_scroll();
diff --git a/src/node_text.cpp b/src/node_text.cpp
index 9e2446e..4ef0200 100644
--- a/src/node_text.cpp
+++ b/src/node_text.cpp
@@ -54,7 +54,7 @@ void NodeText::parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* att
     switch (ka)
     {
     case kAttribute::Text:
-        m_text = attr->Value();
+        m_text = unescape(attr->Value());
         break;
     case kAttribute::FontFace:
         m_font = attr->Value();
diff --git a/src/util.cpp b/src/util.cpp
index c069c56..5682d14 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -105,6 +105,31 @@ std::vector<std::string> split(const std::string& subject, char d, int max_split
     return ret;
 }
 
+std::string unescape(const std::string& s)
+{
+    std::string res;
+    std::string::const_iterator it = s.begin();
+    while (it != s.end())
+    {
+        char c = *it++;
+        if (c == '\\' && it != s.end())
+        {
+            switch (*it++) {
+            case '\\': c = '\\'; break;
+            case 'n': c = '\n'; break;
+            case 't': c = '\t'; break;
+                // all other escapes
+            default:
+                // invalid escape sequence - skip it. alternatively you can copy it as is, throw an exception...
+                continue;
+            }
+        }
+        res += c;
+    }
+
+    return res;
+}
+
 static const char* gl2str(GLenum err)
 {
     switch (err)
diff --git a/src/util.h b/src/util.h
index f68d324..3a332c7 100644
--- a/src/util.h
+++ b/src/util.h
@@ -16,6 +16,7 @@ glm::vec4 rand_color();
 glm::vec3 convert_hsv2rgb(const glm::vec3 c);
 glm::vec3 convert_rgb2hsv(const glm::vec3 c);
 std::vector<std::string> split(const std::string& subject, char d, int max_split = 0);
+std::string unescape(const std::string& s);
 
 size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp);
 size_t curl_data_write(void *ptr, size_t size, size_t nmemb, FILE *stream);
@@ -26,7 +27,6 @@ inline glm::vec2 zw(const glm::vec4& v) { return glm::vec2(v.z, v.w); }
 inline glm::ivec2 xy(const glm::ivec4& v) { return glm::ivec2(v.x, v.y); }
 inline glm::ivec3 xyz(const glm::ivec4& v) { return glm::ivec3(v.x, v.y, v.z); }
 inline glm::ivec2 zw(const glm::ivec4& v) { return glm::ivec2(v.z, v.w); }
-
 inline glm::vec2 xy(const glm::vec3& v) { return glm::vec2(v.x, v.y); }
 
 template<typename T, int N> struct cbuffer