Replace database icons with SVG's

Original source of icons is the icon8 library (http://icons8.com/c/flat-color-icons) and Paomedia (https://github.com/paomedia/small-n-flat). All icons used are licensed MIT or CC0; annotated in COPYING.

* Closes #4071

* Increase default size of database icons to 24px and entry preview panel to 48px
* Add shell script to assemble the database icons

* Use QIcon to seamlessly support High DPI displays and pixmap caching
* Add badge support for KeeShare groups and expired entries.
* Guard against use of QPixmap::fromImage without a GUI

* Add SVG minify and improve `make icons`

Co-authored-by: Wolfram Rösler <wolfram@roesler-ac.de>

1 files changed, 164 insertions, 0 deletions

diff --git a/utils/makeappicons.sh b/utils/makeappicons.sh
new file mode 100644
index 000000000..feb2d25fe
--- /dev/null
+++ b/utils/makeappicons.sh
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+#
+# Copy icon files from the Material Design icon set.
+#
+# Copyright (C) 2020 Wolfram Rösler
+# Copyright (C) 2020 KeePassXC team <https://keepassxc.org/>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 or (at your option)
+# version 3 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# How to use: (assuming you check out stuff in ~/src)
+#
+# 0. Make sure to have a clean working tree
+#
+# 1. Download the Material Design icon set:
+#       $ cd ~/src
+#       $ git clone https://github.com/Templarian/MaterialDesign.git
+#
+# 2. Go to the icon source directory:
+#       $ cd ~/src/keepassxc/share/icons
+#
+# 3. Create the icons:
+#       $ bash ../../utils/makeicons.sh ~/src/MaterialDesign
+#
+# 4. Re-build and run KeePassXC:
+#       $ cd ~/keepassxc/build
+#       $ make keepassxc && src/keepassxc
+#
+# Material icons: https://materialdesignicons.com/
+
+if [ $# != 1 ];then
+    echo "Usage: $0 MATERIAL"
+    echo "MATERIAL is the check-out directory of the material icons repository"
+    echo "(git clone https://github.com/Templarian/MaterialDesign.git)".
+    exit
+fi
+
+MATERIAL="$1"
+if [ ! -d "$MATERIAL" ];then
+    echo "Material check-out directory doesn't exist: $MATERIAL"
+    exit 1
+fi
+
+if [ ! -d application ];then
+    echo "Please run this script from within the share/icons directory"
+    echo "of the KeePassXC source distribution."
+    exit 1
+fi
+
+# Map KeePassXC icon names to Material icon names.
+# $1 is the name of the icon file in the KeePassXC source (without
+# path and without extension, e. g. "document-new").
+# Writes the name of the Material icon (without path and without
+# extension, e. g. "folder-plus") to stdout.
+# If the icon name is unknown, outputs nothing.
+map() {
+    case "$1" in
+        application-exit)                   echo exit-to-app                    ;;
+        auto-type)                          echo keyboard-variant               ;;
+        bugreport)                          echo bug-outline                    ;;
+        chronometer)                        echo clock-outline                  ;;
+        configure)                          echo settings-outline               ;;
+        database-change-key)                echo key                            ;;
+        database-close)                     echo close                          ;;
+        database-lock)                      echo lock-outline                   ;;
+        database-merge)                     echo merge                          ;;
+        dialog-close)                       echo close                          ;;
+        dialog-error)                       echo alert-octagon                  ;;
+        dialog-information)                 echo information-outline            ;;
+        dialog-ok)                          echo checkbox-marked-circle         ;;
+        dialog-warning)                     echo alert-outline                  ;;
+        document-close)                     echo close                          ;;
+        document-edit)                      echo pencil                         ;;
+        document-new)                       echo plus                           ;;
+        document-open)                      echo folder-open-outline            ;;
+        document-properties)                echo file-edit-outline              ;;
+        document-save)                      echo content-save-outline           ;;
+        document-save-as)                   echo content-save-all-outline       ;;
+        document-save-copy)                 echo content-save-move-outline      ;;
+        donate)                             echo gift-outline                   ;;
+        edit-clear-locationbar-ltr)         echo backspace-reverse-outline      ;;
+        edit-clear-locationbar-rtl)         echo backspace-outline              ;;
+        entry-clone)                        echo comment-multiple-outline       ;;
+        entry-delete)                       echo comment-remove-outline         ;;
+        entry-edit)                         echo comment-edit-outline           ;;
+        entry-new)                          echo comment-plus-outline           ;;
+        favicon-download)                   echo download                       ;;
+        freedesktop)                        echo freedesktop-dot-org            ;;
+        getting-started)                    echo lightbulb-on-outline           ;;
+        group-delete)                       echo folder-remove-outline          ;;
+        group-edit)                         echo folder-edit-outline            ;;
+        group-empty-trash)                  echo trash-can-outline              ;;
+        group-new)                          echo folder-plus-outline            ;;
+        health)                             echo heart-pulse                    ;;
+        help-about)                         echo information-outline            ;;
+        internet-web-browser)               echo web                            ;;
+        key-enter)                          echo keyboard-variant               ;;
+        keyboard-shortcuts)                 echo apple-keyboard-command         ;;
+        message-close)                      echo close                          ;;
+        move-down)                          echo chevron-double-down            ;;
+        move-up)                            echo chevron-double-up              ;;
+        object-locked)                      echo lock-outline                   ;;
+        object-unlocked)                    echo lock-open-variant-outline      ;;
+        paperclip)                          echo paperclip                      ;;
+        password-copy)                      echo key-arrow-right                ;;
+        password-generate)                  echo dice-3-outline                 ;;
+        password-generator)                 echo dice-3-outline                 ;;
+        password-show-off)                  echo eye-off-outline                ;;
+        password-show-on)                   echo eye-outline                    ;;
+        preferences-other)                  echo file-document-edit-outline     ;;
+        preferences-desktop-icons)          echo emoticon-happy-outline         ;;
+        preferences-system-network-sharing) echo lan                            ;;
+        reports)                            echo lightbulb-on-outline           ;;
+        reports-exclude)                    echo lightbulb-off-outline          ;;
+        security-high)                      echo shield-outline                 ;;
+        sort-alphabetical-ascending)        echo sort-alphabetical-ascending    ;;
+        sort-alphabetical-descending)       echo sort-alphabetical-descending   ;;
+        statistics)                         echo chart-line                     ;;
+        system-help)                        echo help                           ;;
+        system-search)                      echo magnify                        ;;
+        system-software-update)             echo cloud-download-outline         ;;
+        url-copy)                           echo earth-arrow-right              ;;
+        user-guide)                         echo book-open-outline              ;;
+        username-copy)                      echo account-arrow-right-outline    ;;
+        utilities-terminal)                 echo console-line                   ;;
+        view-history)                       echo timer-sand-empty               ;;
+        web)                                echo web                            ;;
+    esac
+}
+
+# Now do the actual work
+find application -type f -name "*.svg" | while read -r DST;do
+
+    # Find the icon name (base name without extender)
+    NAME=$(basename $DST .svg)
+
+    # Find the base name of the svg file for this icon
+    MAT=$(map $NAME)
+    if [[ -z $MAT ]];then
+        echo "Warning: Don't know about $NAME"
+        continue
+    fi
+
+    # So the source file is:
+    SRC="$MATERIAL/svg/$MAT.svg"
+    if [ ! -f "$SRC" ];then
+        echo "Error: Source for $NAME doesn't exist: $SRC"
+        exit 1
+    fi
+
+    # Replace the icon file with the source file
+    cp "$SRC" "$DST" || exit
+
+done