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#!/bin/bash
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######################################################
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# THIS SCRIPT DOWNLOADS AND COMPILES PROGRAM 'xcmenu' IN A DEBIAN SYSTEM
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#
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# THIS SCRIPT PRESENTS A METHOD OF TAKING A SCREENSHOT ON A LINUX DESKTOP
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# IN A SIMILAR WAY THAN ON MICROSOFT WINDOWS.
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###############
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# This is a useful method for capturing screenshots on a X11 desktop
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# The main idea is to replicate Microsoft Windows behavior of taking screenshots
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# without any additional cumbersome client programs which are traditionally used on Linux desktops.
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#
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# Source code and build instructions (mainly for Arch Linux) of the command 'xclipshow' are available here:
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# https://github.com/Fincer/linux-patches-and-scripts/tree/master/xclipshow
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#
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# The code is originally presented in
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# https://unix.stackexchange.com/questions/163081/application-that-allows-to-show-clipboard-contents-and-its-mime-type/163115#163115
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#
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###############
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#
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# 1. Run this script with 'bash compile-xcmenu.sh'
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# 2. Verify xcmenu installation by running 'dpkg --get-selections |grep xcmenu'
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# 3. You need imagemagick. Install it by running 'sudo apt-get install imagemagick'
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# 4. Copy the following command...
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# import -window root -screen /tmp/screen.png | xcmenu -bi image/png < /tmp/screen.png
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# ... and map a new shortcut key for it (such as printscreen key) on your preferred desktop environment.
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# 5. Compile 'xclipshow' by following the instructions given above and in this script below.
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# Additionally, You need 'cmake' and 'qt5-default' packages to compile the source code (not sure if other Qt5 packages are also required).
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#
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# 6. Map another shortcut key (such as Alt+V) for the chosen paint program (kolourpaint in this case).
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# Use the following command syntax for pasting shortcut:
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# bash -c "if [[ $(xclipshow |grep -c image/png) -eq 1 ]]; then kolourpaint /tmp/screen.png; fi"
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###############
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# Personally, I have mapped print screen key to capture & save a screenshot, and Alt+V to open it into Kolourpaint on KDE 5 desktop.
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# Additionally, I have implemented a GUI nofitication for screenshots. Each time screenshot is saved in /tmp, the desktop reminds me about that.
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######################################################
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# INSTRUCTIONS FOR COMPILING 'xcmenu' FROM SOURCE IN A DEBIAN SYSTEM
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######################################################
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# Install necessary dependencies for the program
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sudo apt-get install zlib1g libxcb1 zlib1g-dev libxcb1-dev dh-make git make
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######################################################
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# Go to $HOME, create subfolder 'xcmenu'
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# Clone source files from GitHub to $HOME/xcmenu/xcmenu-0.1.0 subfolder
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# Access xcmenu-0.1.0 subfolder
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cd && mkdir xcmenu
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cd xcmenu && git clone git://github.com/dindon-sournois/xcmenu.git xcmenu-0.1.0
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cd xcmenu-0.1.0
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######################################################
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# Prepare compiling environment by generating 'debian' folder + contents
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dh_make --createorig -s -y
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######################################################
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# Set build & runtime dependencies + build rule overrides
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# Build time dependencies
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sed -i 's/Build-Depends: debhelper (>=9)/Build-Depends: debhelper (>=9), make, zlib1g-dev, libxcb1-dev/g' debian/control
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# Runtime dependencies
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sed -i 's/Depends: ${shlibs:Depends}, ${misc:Depends}/Depends: gcc, zlib1g, libxcb1/g' debian/control
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# Program description
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sed -i 's/<insert up to 60 chars description>/lightweight clipboard manager for X/g' debian/control
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sed -i 's/ <insert long description, indented with spaces>/ ./g' debian/control
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# A build rule override
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echo 'override_dh_usrlocal:' | tee -a debian/rules
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######################################################
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# Compile source files into a deb package without signatures
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dpkg-buildpackage -rfakeroot -b -us -uc
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######################################################
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# Install compiled .deb package
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sudo dpkg -i ../xcmenu*.deb
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######################################################
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# Remove build dependencies from the system as they are no longer needed
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sudo apt-get purge --remove zlib1g-dev libxcb1-dev
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