From 42b619641aa739eca8d4940a06b1f1af513dab10 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Du=C5=A1an=20Poizl?= <nou.spiro@gmail.com>
Date: Sun, 24 Apr 2022 21:24:55 +0200
Subject: [PATCH] Add help dialog

---
 about.cpp               |  20 ++++++++++++
 about.h                 |   7 +++++
 about/filter.png        | Bin 0 -> 7538 bytes
 about/help_en           |  21 +++++++++++++
 about/help_sk           |  68 ++++++++++++++++++++++++++++++++++++++++
 about/stretch-panel.png | Bin 0 -> 3689 bytes
 mainwindow.cpp          |   1 +
 resources.qrc           |  11 ++++++-
 8 files changed, 127 insertions(+), 1 deletion(-)
 create mode 100644 about/filter.png
 create mode 100644 about/help_en
 create mode 100644 about/help_sk
 create mode 100644 about/stretch-panel.png

diff --git a/about.cpp b/about.cpp
index 2d54068..64ed2f5 100644
--- a/about.cpp
+++ b/about.cpp
@@ -4,6 +4,7 @@
 #include <QVBoxLayout>
 #include <QDialogButtonBox>
 #include <QFile>
+#include <QLocale>
 #include "gitversion.h"
 
 About::About(QWidget *parent) : QDialog(parent)
@@ -33,3 +34,22 @@ About::About(QWidget *parent) : QDialog(parent)
     layout->addWidget(pcl);
     layout->addWidget(buttonBox);
 }
+
+HelpDialog::HelpDialog(QWidget *parent) : QDialog(parent)
+{
+    setWindowTitle(tr("Help"));
+    resize(800, 600);
+
+    QLocale locale;
+    QString l = QLocale::languageToString(locale.language());
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    QTextEdit *helpText = new QTextEdit(this);
+    helpText->setReadOnly(true);
+
+    QFile tenmonText(":/help");
+    tenmonText.open(QIODevice::ReadOnly);
+    helpText->setHtml(tenmonText.readAll());
+
+    layout->addWidget(helpText);
+}
diff --git a/about.h b/about.h
index 13441e6..ba0fb6a 100644
--- a/about.h
+++ b/about.h
@@ -10,4 +10,11 @@ public:
     About(QWidget *parent = nullptr);
 };
 
+class HelpDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    HelpDialog(QWidget *parent = nullptr);
+};
+
 #endif // ABOUT_H
diff --git a/about/filter.png b/about/filter.png
new file mode 100644
index 0000000000000000000000000000000000000000..aba9cfe8992a8edaefbb632758364fa24d9a9c1b
GIT binary patch
literal 7538
zcmY+Jbxa(<)AuP93KT0+IK0K(4=XO^(Bf`|!|jmbP>L5TPC2ANk>c(yhaB#Hz~N4T
z;_&du`%B*aW4|-Io0&`|*-Y|@{G|F37n>X#1qB5cq#&z-f`Z2XY`??Ac;4}Yj=P`b
zrJFQJ3-fvTVOmB!`v7-2J$FrKD|b(GS1^jTld~h3!_C4K40dv}adtmJ>kvmlp?V3D
zmD2LcILh?Y)9NP=N7TS4&27JZenIl-@Ef{%MOzdsp_d{OM*W&x>CiZ@%G^OcFS6~*
zCR!k+mwd~B=bw#3#CKvTGtaSy;Cgp<v$xy+S?7&eKi#b6e<Ftc_z=U2=H}+Ss6mpn
z1eh<M#q2AyxI4ywTmO5o=J*C9=Ko#Na_dD;t~Pocyp4~K{}A|iFSGga6mNcMDNm<_
zMY~ul<;-cd6(lSB@;Rn=5?|LHY<Bi-ok0u~YM62sl7&l}v-2%z-1U*E(7?py6nl=k
zZSx+H^S>{b>Ik-?7AHF(H|$6(u?~Rn#E;({;oGxih6)KGsj0eImY+@^v9PgGf4T2X
z0>Tij-bDEtktHSe)Z2<bD3;rNN%d3ss4%g_D8!}5(9v?X?$y5hPnN1`*`0mPUfWt5
za8=vF_$L%bR=U}&w(y^X7?z)>F~vHl7HpYkuvIKA=`Z(ZWZp{i>J{sh4OLn6^Ww%u
zMEp|EllM-elX5b*w(ei=3FpHl^#S^YWWC0ahTmi#*7_YyC~dntevOPL6jhq~F#L1P
z|L^;K0krf5UiX=JW#s=QNR~Rkzi~T5-$AQ3=q7ezxrr(r(%cmeq`ffWCNLO%vdrH)
z4-6+PoY3fny~lT>_d?9;r@Nl$%ceL5OOH9L>5wZngv<L4qDnnV?dsDG&|q@x1lEf5
za9My7u>FijK*Db?PM8G=3Nx_&)4X7Y6>Qwr%&nrP)^9;mC*yWqmIez-CmB3lOYcA%
zEu_EYhhG9XrN>bHLsFi51C}xnZ_LV5<p~`3%k9t`8E7uXho(~g$PAk-8y~37c>IoM
zb=1k2<fda`^;t1K%QrHhJ}S#;bo%BW>REO4_UIenkvKef9w&=bH_L>E`e&ixJ%nWw
z-aslqBf^KCj&DrbmrQfPel2*KbCA;*l7fB`hp+Jp8GH?!16*abcoig0$i1owJU8JC
zwIk}bpmAGY<I3><{jg@>O@X`B`D?<(+ez@&F>#lmF&Gg`1HNK5jgE0-SzlM(d;gXe
zPG5M=bshZrHrZ{Xv8o*3Lvg|4Xifeh$gm0O5Gd<X)IkBf+=0lHTq)cG80R2etJ0ww
zIkI587)@K}^s9`)$2-X2gz}*=i{>nvb%|$2@}!vM*l9tMM=fl&FWgDOgn^NT9T*X5
zGOI;>$5esfNcK}IxTN3ae1&?4)a{As2I>^OZrYe>Wts|Xmr64EFk%{Id!kS5tHh_Q
zGE!B|_6_Pu)Sgxyd{Dvb?YRuWXwg@9+O*xU1PK45^^by@fBu}XU0u*u&9qCH9Tj;0
zN-4~}vqAZd0|!SX%b{wFP8-&T+aFPy#TN0$H^1TE_BA=*JaLV$hR^WzQtieh#?w*F
zNxaKr%8SM6H3o+v_EVjWQfu)&Czhsgw3{X}l<b&lb21DFC8HEa^`PmwoCc98GC)^j
z%)f1k?M|&5sqIdYi~N1kN0JlO;<bn3LE44cmZh&&-0J;JaQF@uhcRdASL1dxR4<Zc
zsG<)1ZG>Y3@kVk!_EZZQq?=hCNY~*ZZ?@VWU*?3px??<5&wsC%uCMXi)t8aVOV-sh
z6U|W`u{^jrW~aHhN=XzY-8l2ldbX-?H{pH6qu|^?rpVjDu(%n3&2+}3DHR=_QpU;(
zgv&gNhu1Y7(z5;NgHijGkgSW8Xw+GimjN_q<Uh{J2tV8j3_~5wE|@NPKzKzx^I|Oh
zlabzDJu-L;ot0mE8o9&=x4#zx7IV4i4uGGL{q?<>*&}oI>|`#D_|%FI;oaUY2R!we
z0hYR4o}0Q{USxg|U_RL7_9kEK%aPtWE$I~()>q{1zSO1<BC)IX!(^VP<SHj>c`;9t
zI{d;49fZ6MDR>sE@Ui&|4}soysm_wq!d3y(VIWc}n+Z39pgd!qxc0GyOgQGDR=BDB
zq1l*_=``U$1-07_jSW8%MW%!$()%V2$~4R8scLPojOcF4=cpQqA1Usg3FLt{w<Kz0
z63-{q%b;#Jm-Tk&qjc=stvzjNVWfIWlic8^s%5Q#YlZX0O@}L<yhCwpf&+iuRU)s4
z^+1U4@?S$jl~|H~G8mivi1fLLaB*Z7?N`}SfQItdPQRWtvU-dFFVEUQFtOyKRAM{$
zZu-pIoo1l^6~pSgZJKT#02%9->W^?|eM5DXU7Dyg?h>|az0|GyURL2<vzN|su@Tle
zy*~fIE6aF7wkB_Uo(TIJ?t9nd;re2Be1;$IKIavx9bIOpwY<u3;H+|Am1;Mdq_j^G
zp4P=&*wZ`BiVz=J?uu$cxS*Ved6~IB>2617%NIJS8i~)-=%V);U#I+|+98;Nh#Xjv
z?3{R5kgep<6)?r|<mR&aIu4C32;SHO<vq>jCwY>_ANx{li2yS^S%h=Izkh=1Z%xtU
zw7pSE(3X%%?21^(_gmZ=#e2;gn8rjW+YJIeIBLR5VD!CQZ<0J@-{O~|IaFqs-TK5O
z1PJHL$-vAzse51%vFnCz;;CPE-bA3I`QQ1bLlN&xf<N3d;^af6dn-i_9O><cUXS;}
zOln!f{L6E5q`tm)o{BPVJG^uBrl=CE!8IVr;tZzQ(3Y>wl7z)x<xPm^>hP%@KtP)?
zg`s#2smYRqDqsf^n;}ue6Y2UBF5;)e7O^xJoJ+G}He6@nr>zn6ZwPfUkT)~WQ#z8z
z^_OxRr?NhOa-5O2Bu<xoJEPe?qv}db=fG&P9hz=Upt}II2`*!`9gX-OEn?p>yy=?b
z?kx&(%NZSc)z<}(HJ|h%Isc*PiyHE(jO>N*KRZ!8He)XeZi^FNy>}Epibnk2uFY5o
zcP7s^m*=Q?X{-bz=G4vHpNV;Kt(I6YkKi2KDO7V&n)+sEYZ(9gLSv*@A&s;oM6K*1
z*ht?u9Q+V|7L|)u63bEOKarH90af)Ul<-zBl<h9`nxP&hE)dc!mRS+;3FxT4uW<Zz
zE<N^(ZgYZ&c~ffdR9o5Tk>s-7Rf*DTD8%V0%)6`a)TK$yMuAym+0AO)=D4!jSMcAg
z-q6s7rcK>DhJm6<%-B`3$SPJyRfjjj`v5L@QKGdMqi#;+k8NMNwiNIWscKG;K(+y~
zE((8v;|{eS?;nz~0#6I05s9CO0al(zwpez9AyWbQze+oKwSW)VF&63LC26SVgu>&x
zMnI8(JQB<v2DMs;M;fb)j<EPD)+&D|#mHCTMFLOwkE941-9%l=jE*0#`)(nAwkYC^
zl42hpg*CHpUI);vg<GXrm#FwIKDm=fB=cb9FDJ+Y=jP{bQJBi@u4}WTFFKkApcRW-
zyJc98-;&u@2OYmrFNzM^8zt+58(i-07>fv}QsXsY$IS!*4&aeElpzhA5AHz#an{XL
zseAqaRHeX&L_@A<$e)!+o*Jg9i5}uj?%2`8{>>O`%*Q*xgrZ?F-pc5@`l`3cpX4?v
zI{1LXd_e8jHVgY4X=z(SO1c~O?lq|tO#lylz^vE;EVb;`rTvz<z_~o!e;~jL=k9x~
zi1nyH0_Whv%{dOKsHmu=zSY(7%3k;V{e40Y0v&ud*=UF7x)B&(`}f0GB%7jQJ*V;j
z>`}R8Hl&Fn{YT~zi+vteTR>XqLGUM^e|b(K=nTJH%2mc#*vJf~G4}RY-r`b#QUj>(
z>k40~HoTpv8S~LXORan&@{I0rI*<GLS}{o|*|pDo5KC3;M6oBF2@~5h$0Cv$PnjHU
zJ~nZGV{6XCmxjJ~LFt(=WB=4$+J_x>qgTj-T3W>8B@_U^U#Q$CBl1hnNzm;0NJ;@)
z(PY#2cpv+@Y=6CcdMZFMmtHUtbc9BGz~9^7&s4|+!cI~|UtGH^{Q&qlVoPLmP&!a=
z0=NBZiMbh?CDmV3I2NyXWmSOS6n~x36?6=@F~{vSwVbFm)(fbL%)u8u^BAZhZb)E{
z+}bD|1CUHY+b9ey$b}eG8VM~P+J2`Oe(=T!-A`4m<E8cT<mI*5)G`NMmHpvy$Dz^*
z7*3f9|G8Mnq4SlpIV#_<uGVlBaB{nKb0X-dU;h`|H2P1P9qo@l?bQ<ysdvt`IK^7s
z-`{P5guW*nH?qDM5m3$W2{LYD^kQflN%NU%EXRGVnz<HM0ML$h{WW4~fg#Db0m7Vs
z<-2&Qqhe1yZNF~<kJGoRfAsVFa0aSYo-Rt77KF1n%I`y3aj<<CxfXkN(^-E+S9uCZ
z&n|C<kCp+hY6TLvk2;qQfrgC!Dr2gQNkYOu_lvnXj}dT^@F4b|E5skWBO$Ib@%@R>
z!u&Rpwwm9nv$DvTR@7EGb0lm)x20RR#gYL!w>ADZpZ1|>UOZ1->aA7|>sJdZwzerH
zfx7L#JPu~}$W<jIIyUc4zUR*GC{uJmV`C_PR%mK8-r#)UZ|mG#?06oU#^%`{($Wt`
z&#DzP<=O9Jk4Z*|vZq~at4RwqC1>}>2YIof<k8DKY5OohA;W_A`rNy{z!^wWLt<v4
znydO$Fl>zaT&twO{Gnj_tXe9URe;E%cuDy)tRCp6v;56#5Dzf{J;jI0)LhzOI8+QA
zbM61_p@~z!`)7UJT~U<G_f&`~V;}|}b8<m8edAqCuA)b?=*{Id$x{4c^c2;<SU{W#
zwp_7DsjJ`lC|Nl59!|IoZaJTdxYYwso8=qkycl<Jv@$-lDv;%4<%_1XW?J`tAaC#(
zbuZDN&+i)f>#TTV#*Bfx*`6f@KOf&QI|y+`O!&1H@$u=#<myX;OpdcgCR;qnI!dtm
z3iSx@)G*h1g{<gO=c8(NA2JinJ8=8q%I}3r23&=h81XGZUP{|>4$RA+R`~$s<MfZv
z#a}Om*^o!Jy<yNf@1l5?ylGea75w|{Q<e_?T2u>DANMoMzVBO<Py3?eX$OUgf8Sl|
zp;S*+>Av{OHSEuEkVj{E;u7WvEQG^QipgG7z55V=ttv-(36y4oup43C>{&=pj_Pbm
zLeo3u-f$md=3^Y^LG8N@<({Cvn~T`E1XukoLrXYnO^%D-X-=F962Z5Fu-@U_x_9#P
zNz74&g^<6Z7HaI^<H+2Xl!gk~-{mD$iig`ryI@NTZ~0T~1PI@XD=+U)R!bcbi>}L1
z@SlXw88uy#Lhvib+voR_mPBwN*cQ}nNnOfX_Ze$DJFhyAS6a@_&y^mZ?z$58Wv>2S
zbt-gQs8m%=yMA%U1<t>$95H|M7(|!|Jo?@H&%|%m12{7pTS$na_@RAyprD<ac}wU$
zHM-kozjNAb@ry-&rtA80aC6e<a%Zc_-RIfBH>zJ<(P8*=MBve|JwR*5hbMOnh`Ok~
zrWk&FaXb~J>Ji1n-wXrqwy%pAo3zo(=fe~s!A-cNgj*e9cA~!H=O8ZN$;JBgxY}v<
zr)0MC13HJTQg0+sOFbg?{0mQO`Wsh2;+zJx8puEQW?-cCNY#n$)(;{MHkKI=VTns+
zh+D!iwk9lMQ+w^3OR;VFzJBb6oF1iO9j;D22Vk}WM__woC(h~N+HF*I_}+7(uP;Ig
zXxDg=K`P=hJhY?i8NMacPFFuCjygnvwm6I&8WZBJ$E8aB$>%!8+T2K-0q_l`eSB}P
zV+yN*6ShXbNJ=_8kvi&(EL|3izddqv6`INljeSklv?R!sv))x6RC{>)8jN;T^UEV=
z(^b)?e=5ZQBR>tzvAw-L!HMG)r0NVCPx+6EEB@o#hl;hHykg!6+;h=_!yNVbPrMJ6
z?BTm!K6`|5$a0>NEIPM~<Np3XMc4FE0q^1lC$Lo}$&*W+9T^P2{7G#|G}d%C(`uK1
z>bU2Gv<J|;Wnhy~1}<Gm9n6-Uot}2~^w8<H3xdF*G1&Zbq}=Z6{Kob8A!XX1>I~$r
z479mfXOoMS>LK@MdaS}P6w*YR)!U^*L$I|bUL$;Bm)T~%&m5@oH8~-tv3j$?t}SEw
zR&&`+Y@}=2dV|3NrjuXPKQ}`3eH=R!6Oqts^Da*uTcL2k%AA`e#1NZlmWu8*Md|pN
z%Oz$3!eR6qZl4fhL--Q*a{N~{!;J5Y1x)Z`WBH$K?qCKK-tn4D(PKQ3dJN<D8k{jA
zM`-G#Shq@19!j1W^lbo&R9+T7U~;kM(j|Hz@H(sRqt#@!MS6<HEW^D<_3!NV5Rf^3
zv6c$bmkVxVq@*dm2+wCzo46ISzO(Nb<a8jL#a1C~DzFyLsC21hw~9oi8@d9-B3ikA
zik!X?<nrdR(MDtcQKexh?M3!xfxfJ*EvBxcV{M4W<I|X`vNVNS>oH;7(de1+src<%
z&9C=KXfn|AvoLAp`G%NxCeABv*wwUofR)-~y1`cLjWILax0fGWbOu^QniFsZ^Sp)1
zS!a<K2wL+hJBql)Fa7#Csd#{0HVP_=EJ8%)@)1;Ed1*P3Q7jHww?<IX?DLy)=(qdt
z2%^J4%G@21;;p^JPxSrog%|~Lg~zuKN|df^Z(NRRO?uWt9a+-5==-4;9p5tI4LPTH
zY4wTo{E~}p|BVj}H1i{G_<e08Rk<TIw^Zbr4kWdsc<#2R<O9cPSt?zDsu9rm%pd)m
zoxeaxi&R3MoC&37F3?xJOx199=$ifn6`tvabJQe1Ys#01grJfrTBYTc6*te*0^fn=
zHwf33KIwX3?e+#El_C)XAuUTX^F;1Q_nt{?BrPwVva-q#1%IEg`wi5c6XqgOD?(#(
z{TIA)VpN*=Mhvfw4m_+4+Q#<88+b@Qa+vM(0{!&q!7vcsQh&%<e-ZybN~%l~R}dS+
zofBJ<B7G(>{0<cxZ||bCI5Ln4Uxy=0W^GSixyUwOu#mK`$-8EO>R7sA)PpA(%x|0W
zJ24_EnjV9p0JeA4I>2=T;Zp8~jRLzu*%zDzkuX*L9I7Muh{bHK{{5^IUd&;27Mtn}
z2Eaxpfz4+&^qiM+m}8j8{owSCjIZ+Ve+^5OR|v(qNo>jRrhIhQUZw7uH&K)MuPC_g
z-XvzIa5SU_D2A`p>EE4`k(276kURMyevawr^WFa9wsK9xxf=gXo<YBYw{tPP=Mbo#
z^mHrODNPC+oe{-62f$YW9OH<dhub)oTAGfqk%kuT0gk=vh|QOL?h<3l{piWd`%sHf
zm3)i1;3TMT$c(X=!q$kRR_vm9{jhLA+EX7ervQt9qIX@QyRrfaZTy_l2HZ*wCz}l*
z>r$C@;U}_S6fWNlM6fm0hco5@-!TaFw4I1JZk&v!rI`=0nS}Mz!9gu0^ptSjPEbQ;
z3H~8KgX1AGteTTZ^!c}O;S_x+RUUdsf^lvIv%?jDU*`7$kaH?bHnS~2@WZP~S8p1a
z=l;j(UwB#^4zkn1_94lCcRB=0d*!Q*HjV;f^cWpZykImH!}D%bE(ye1<(ipAEcQ1y
z^`Z<w=l4Zkjs>D@31z26zET<2bd)9^32!|Kd{aj(l$7OQ?&Y!AZO?<DrC}_#TwSSw
zNa*D#4brw`v+rnUS3$`CqvwfkfDl2HHJG&2T}_zc;$@k)_Mv7I1I*=iY2Bgv={r(P
zDUbhqt}2I;PN`|XwyCLV=^YhYHrFXZ3E!T=iVeA@$Gmh{_F-qk5xGl^uJhte<L9$|
zYU@CgQGAIfnV(WnGIhA}7(pcRELk&yUxV;!A00n9uFC05kvesE$l60C;@<In8<1?O
z)kEMrYqraN;of}#TmJwfCl(Zy=wP_y?g@E?eDg<jRzokfyTuh9<0am@WXsR{hAw}f
zi<>l&W4xlz*^sMlENWe{!Nz*I1l+aXKj~#eh}Rsw>BQjbva&;i7`SAbj-5ELFsgh@
z$%9^G9RoW%2ki#K`hqt$+0wcOO!Xw}ZDuf5LX}uKHA5v2YVN=DqiLj&$Et!w9|xzA
zLUeKEZ#{iMO5O!cCNELmMH#wq#K!PRe^Xw}dY^>uwf~ah>?1X3recn-svW(#@Ib#q
zA}n3={;Vv?2VINv5ev8A()<Aizo5_r&{dD?){Ahm{!;;WL2Ylapo}97jgz{{=dp}J
za(eTPI-N7HZ;US<{?vNEZM$pYE^~t%mjU`VUTFhJ#tGa8f`E0)M!+nZ>=|o=tAr4f
zc1as)RrQ6`TqDQ>Bz-r~EqHlRCh__&4o><s(wqITk}qawc#J}5=Nzz#M^dzVpRRq*
zR5j5|5^A!#?y)dtvo{s>q7KMyrNHDMb30L;A*L~JTn^LDQ49Y*SeVbyCfMM!b;y6Q
zTAW=hPXl|n!XesLHdBJ5;hbHE<ogmUXA8wK1UH<~8%P`1qB=5NPk_kypEz^Xc>H^<
zC@~&X$2723lBTQ?RoBBiIG6uuTV06cE6Ah-NC=!&CK6&lAm*bm*y@<Iw&#gCLFm~|
z?8e*~PBVPFlhO8k0X;_DVWSMcz_jZI7VHjGkaMT7JXHR7sSB6Jw5A9g26^*Pw@~?L
z1JS52K$eQ}mt2<f33~1GJR!x5C@K8VTRKyB+%<{gcY1UCV}JWb2+n&J==620d&`kp
z#=KBDC>r46LGyFWA*4(r?y*FNuQKM<TM%R<lUZFBzFy^cEk|c=X(yMn0Y0^Rz!k;t
zEG#ECNfTWssQzZ_kA~%6miuYpiQ8ri2P1jT*`#(EA@l=Cp}EsHZ%w}Q54W=pX7h#S
z&p@}Z(!%44S&CSUJkafzY!i7c^OM0a#?DLOga~Ht27WasQxds{v`Se-gGAS__}cZ>
zXuqqr=ya&{^|?M}*Xu=1#~_oh5UTCRWEaa8+J;YNTWeqK5WLNI95Ut(u`1?*tTVT1
zoe%!kwas+$yIz%UVjl&>mF-Q0GDQo2I}Lxt<=Abq6|)Z4hRxCUgj@{B_vbbu@XvIG
z{KdcT_9xoz3+QuoCe_<#SJ%{#Fq-5ov<t_+pkw+wxX4^O#BaVk8ya1j!5#IZ4QNW_
zev4Yg^_fiLinI+A8~bt@9t<8y&<&M+f~xV@%XSJ$l#h~)U7(dMOy)DnY~%0D&Pi}r
z_V6afZte2d2y=W8yLNq`9xhP+Jebj5iW4IT-cg(x<vVl62QCyQF)2LrpFxXInQ**`
zR&O_Vkt!FPB4%Rje@9Cnk+2v(90~Vb0xHoj!$>16*QheX1}ptp>9Mewaknlh8{xpj
z%oKao#jc9HMa?0el~MU%>4e{Y9j;kao>^g2pKrg6D%+%*H;$h##b<_9BV_2fnPnHS
zF5dV69iBCTz~F!M*$;55zH9GAt$L<c#FCq&Y_?$5cOZZ<<Mn702k-{_8IyF<60q^#
z;HZCjCLme3&}DW}&`L_E^;7Dgtu^6Wxu_^WMc^B0c$kXn5U0eh%Jf7=a^CnkG;!rB
zdFWSFU7cLv)H_hZ=@FkKF*dqLCZ3_;k}}eggpvD0HJg2obq~YbWod1`CBp>uz2P(D
z>DZKoua<{$^8h#GrtJ^e`@A7xLp2dL$|_o3EpLbTWB)rg5pF)O&9t3BS67#pk5Bv7
zS;sg0NYz5*Vx4`_%ui=lt&*7xi9l*+=aXmFL@Oxdd2Cb<=D2WZ#1tc?3`sc`6rOOs
z$*pH!4h(uRQta|fkh<fDUgKb+o7v@ler%^@eGB(n<G8rr-jtR3qbiKn=zY%k=FOXs
z(9kU(4D=IHLqo&o>`qQj`mmN~(6_$6o*RvumXT67UbFuG|6tW-Z8Rx$v*KwF_vjN<
z`bS}+R_9jZ*XmVi9R3u^W4u|<b;Li{!DsUy6cyC@X#n4M{6D_b3pq0W|3Jo0v;QA5
lhDg!<FO7U=kT@w%Xz!haIw{5>h-YYu0+LgeEtfX?_FsPv%gX=&

literal 0
HcmV?d00001

diff --git a/about/help_en b/about/help_en
new file mode 100644
index 0000000..3245d60
--- /dev/null
+++ b/about/help_en
@@ -0,0 +1,21 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
+<h2>Tenmon Help</h2>
+<h3>File</h3>
+<p>Open file to display it in main window</p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+<h3></h3>
+<p></p>
+
diff --git a/about/help_sk b/about/help_sk
new file mode 100644
index 0000000..49a5a1c
--- /dev/null
+++ b/about/help_sk
@@ -0,0 +1,68 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
+<head>
+<style type="text/css">
+h1, h2, h3, h4 { padding:0px; margin:10px; }
+p { padding:0px; margin:5px 5px 10px 5px; }
+</style>
+</head>
+<body>
+<h2>Tenmon pomocník</h2>
+
+<p>Tenmon slúži primárne na zobrazenie astronomických fotiek a obrázkov. Dokáže otvoriť nasledovné formáty:
+<ul>
+    <li>FITS 8, 16 bitové celočíselné a 32 bitové s plávajúcou čiarkou</li>
+    <li>XISF 8, 16 bitové celočíselné a 32 bitové s plávajúcou čiarkou</li>
+    <li>JPEG a PNG obrázky</li>
+</ul>
+</p>
+
+<h3>Hlavné okno</h3>
+<p>V hlavnom okne sa zobrazujú načítané obrázky. Naľavo sú potom <i>Informácie o obrázku</i> kde sa zobrazujú podrobné
+informácie o aktuálnom obrázku a <i>Zoznam súborov</i> kde sú všetky obrázky z adresára kde je aktuálne zobrazený obrázok.
+Hore je hlavné menu a pod ním je <i>Panel úrovní</i>. Všetky panely sa dajú zavrieť a presúvať. Zatvorený panel sa dá znova
+zobraziť v menu <i>Dokovacie panely</i>.
+</p>
+
+<h3>Otváranie a ukladanie obrázkov</h3>
+<p>Otvoriť obrázok je možné v menu <i>Súbor->Otvoriť</i>. Po vybraní súboru ktorý sa má otvoriť je
+tento zobrazený v hlavnom okne. Taktiež sú v panely <i>Súborový systém</i> zobrazené ďalšie obrázky v
+adresári kde sa nachádza zobrazený obrázok.</p>
+<p>Aktuálne zobrazený obrázok je možné uložiť v inom formáte cez voľbu <i>Súbor->Ulož ako</i>. Dá sa vybrať
+formát JPEG, PNG, FITS a XISF. V prípade JPEG alebo PNG sa aplikuje funkcia na úpravu úrovní. Pri FITS a XISF
+sa dáta skonvertujú bez zmeny úrovní.</p>
+
+<h3>Panel úrovní</h3>
+<p>
+Tento panel umožnuje upraviť spôsob ako sa zobrazujú obrazové dáta. Ako prvá je na tomto panely posuvná škála
+na ktorej sa dajú nastaviť tri body.
+<br><br><img src=":/about/stretch-panel.png">
+<ul>
+    <li>čierny bod - všetky pixeli s hodnotou menšou ako nastavená budú zobrazené ako čierne</li>
+    <li>stredný bod - pixeli s touto hodnotou budú zobrazené ako 50% šedá</li>
+    <li>biely bod - pixeli nad touto hodnotou budú zobrazené ako biele</li>
+</ul>
+Nasleduje tlačidlo ktoré nastaví hodnoty čierneho a stredného bodu tak aby bol obrázok zobrazený optimálnym jasom.
+Druhé tlačidlo resetuje tieto tri hodnoty na východzie hodnoty. Invertovanie farieb zobrazí obrázok ako negatív.
+Super pixel CFA spriemeruje dva krát dva pixeli do jedného čo je vhodné pri prezeraní surových obrázkov z farebných kamier.
+Posledné tlačidlo zapína a vypína nastavovanie optimálnych hodnôt úrovní pre každý obrázok zvlášť.
+</p>
+
+<h3>Označovanie obrázkov</h3>
+<p>Obrázky je možné si označiť cez menu <i>Výber</i>. Zoznam takto označených obrázkov sa dá zobraziť cez
+<i>Výber->Ukázať označené</i>. V tomto dialógu sa dá tiež tento zoznam upraviť. Okrem toho sa pri označených
+obrázkoch zobrazuje znak * v záhlaví hlavného okna. Takto označené obrázy je potom možné skopírovať alebo
+presunúť do vybraného adresára pomocou <i>Súbor->Skopírovať/Presunúť označené súbory</i>. Po skopírovaní alebo
+presunutú sa zoznam označených obrázkov vymaže. Program si tento zoznam pamätá aj po svojom ukončení.</p>
+
+
+<h3>Databáza FITS/XISF súborov</h3>
+<p>Program vie prehľadať adresár a zaindexovať meta údaje z FIST a XISF obrázkov do internej databázy v ktorej sa dá
+následne vyhľadávať. Najprv je treba zindexovať adresár s FIST/XISF obrázkami <i>Súbor->Indexovať adresár</i>.
+Vybraný adresár je prehľadaný a meta údaje z FIST a XISF obrázkov sú uložené do databázy. Ak kontrolu a obnovu datábazy
+je možné spustiť reindexáciu <i>Súbor->Reindex</i>. Toto obnový zmenené údaje a odstráni záznamy o už neexistujúcich súboroch.
+Pre indexovanie nových súborov je treba znova pustiť indexáciu.</p>
+<p>Pre zobrazenie databázy je treba zobraziť jej panel cez <i>Dokovacie okná</i>
+<br><img src=":/about/filter.png">
+</p>
+</body>
+</html>
diff --git a/about/stretch-panel.png b/about/stretch-panel.png
new file mode 100644
index 0000000000000000000000000000000000000000..07445a56dfdda67db97eba3f867941824275072b
GIT binary patch
literal 3689
zcmV-v4wmtWP)<h;3K|Lk000e1NJLTq009~R001Wl1^@s6&>)9>00004b3#c}2nYxW
zd<bNS0000PbVXQnQ*UN;cVTj60B3G*ZDlQUV{&C>ZgXgFbngSdJ^%m>`$<GWRCt{2
zoqJGJSDL_ox4UT`qP%<nM$tusiJ(R?3XVoc5;bZvQDZXMwRV$Dwl=lNPSsXwW;98q
z%+!{pHHni+CNBa`vWY3NV$_g~5;01|04fUO10kXyFNNk|(=^?EANz-)hetQi(5+z3
zuj*DE&g=W?HvQf2eD^!2rQN%CYX}4afe$eNtXsG4cIzP!2<|{iOG_y(F1~4K0Bknf
z?bJsg5ZuA&Znpvgf#A-^>CtGK2-OG#0^cA!8i7FIbA+K02n0UI(03QXorMKSszs7Y
z(CN+~NwvU@pV~&DY0;?aOf+p8nid6&xGh@R+nPC&_8jdu>Il0lfrbD2?ttbA3=H(B
zzo#LD_V)I^bqMfK2g#%Ev|Fv74Y&=67|qWFRaGb~{EjJ8&M{_8DU#F#bpOmvNRkP?
z{w$gnMngj!6%{i`NLYj<-8$!2wzaYIclR>$7wZ@?<z5=9O1O}-gJ}!@?Uw1#Uxvc>
zW+>>;7h>u3Gr(qR<MYqo<N4=bBrWa#fJS;6na*fHBkAd%@ci>HvS&{^HruUxYVLY@
zCdny})7mamR(u>CHf+|`TP9!NeT1R8!?D}j*s|q!yzs(C&Yi0uEv<r_9231g1T_tE
za!jPAR&e_CC7yfkf7rHd(=9PJ7mlPdA!Z5&G%7FTkT7E=r}BRwVd;PRT($tJtE<V)
z&E<z5e&G7`>t37JrJ>2o%R{f%_b3a77n-KBfBz@E_10gp*%Sb(s;qqa=~bGV9B#)o
zH96S1vx=&!n}(&mUFOX<KVr|GPf%6Gr#k0<@fxvHrs5~pv+(|zTrN4u-SgI>(~EGT
zud!OKy!-CEtXQ#vRjXF<>8GC}%d%JIb{V5tuwa3+u5-DApr9b4qoWBA4<|S{7^BgM
zzrR05qY;C_fS;cq27|#_*6Z~c3<mUiz4Pk$Tc^`G>pIHa>pIuFy1KVXl7wEbN0Ou-
z^&REq%a?QL&>?4C=eF*3k|g!o-noyfG2P3q=I(yEo5NL`#bR;!;T9Jk<;^$WaT*x_
zSytJ<zmBzQqglRutjlpHPd2e{UoEn%I_qpUg+Kl2&)j|YRA$d!GLZkZKDl&aFA?Kn
zklPxto39}m0;z3MSn)5LhHM;SDCp%a9jdFVId<$Aa5KoAo14p%Pd-UhRMep7cInZ`
zvh1{Eoy&sZgW23bYHB(~MVEWDnM^ibe)&ADtv$Vy)>ehz|NcA;4L!G{oIQJm)YKic
zv^4lc=hA{N85O9*VyeJyvvTVERsJby10y4%eIifLm4bo-3JVKayLK&!iHUsw{r8+b
zd)6y+yEHWU`S}<Oh8|_X@S(Ky0@>Mz-9GJ#idy*Wv#VWVHJS#We_lm#af{0_nx>JR
zolRNU1+VF;s&*<bzQwhxUs7@D2qTT{*xFjCxz>O^FqXt+&w5RkJ3>Q4S-pBSFTL~<
zJ9qA+xVRYWFnDF`ZFcS2h0$o_kw+e3{rdH^wYBlpS6_K$ZkHCMW4YA5EEqoI=KhVV
zSDSn7lb&9|;>Dwhiwg#zw6vA9w2EHG)YP<)mv@lF#D!kbv#w$v^;MrSdfaqorG#U#
zG(wZY@xlOJ*^%KD8NCq_5<*&98c9h>L_|ao9UaY>F=Ke*i6_{&aU=fz{yx`XDA2KN
znm&Cx@$vCYnly=t6DP87-#)f(-Rf~ZQg@sljizbN%i(a~a5#FDJ1)V{qVs3daUDGP
zHLBYCXH`^mgZJLMjM*&H+N$vW`<FR$#<e%oSyooo*DhsxdRZ(MQa{dTZ*~GzHDTO0
zXBi8YKf~CBY0O$=rn&yqpk?$%XlN*DX=$ukvxcasD2zrUCX<Phk`gv=-prOQTl(~D
z2CIWN80<Y#Rh1n(b|A|#4?g%H6DLk2Ha3=&loT2p8_CGX81(&jxpXQhC~z*9I+q2*
zhl>|$`|Q&Z7(Q{LiIXRr*t@r`O90sY+%?`%k@C_*T&pvoH{Qh;2NX8E_#=OQ|2$U5
zSf)<9mmiBi@QNIFEL^ydq@*Ob?HL&vl$DkFREMF!_3PI;eE2Ytk&z@NCE@4iM{sa3
zNl8hBhK7=vnd$b0Lw|8;Xp)nYU6uvIhx+>d#Tc$$werq8mwD%%a_8&pzG!F|eEh;x
z^CgbPKk({rXE8RUoZ6bJM2;OndDUp%`m4kj2gfrv<)cB%>5aI!I7W{i?Y6zXzMk{v
z&-+w|p+J6qK9?_FX7c38%$+;eS)ZJo%!COOxNzYD#l^*glHt-->HL;Sym1<ySgnr%
z?sH{2&@|Y)w+?`ejJZht+Gk^AFz2LQEqw#K`4Gt|n^6^w7oRKTKmOUy;an?+kF{_^
z4ZvWG9Jl~4BK7Zv^f8HN%O}ah%}%X@a5l_lGg(<#)YsSZ`s=SVa^y&7+k^=dSh;c~
z+qP{ZD=UjRbLL<)8V4lDWgbmIK>^9h$;h(Yr7RelxQYX4+DIg+vCpy9)$RP{FXd<&
zBqoM3VM0JZ<c%C~?4iEuOB8D^33LA&Frc;{MU~so2QA^3i~i0p=2nq+vXStJIG@Ki
zN=r*InM`i;L`IJu%{}+r)9V~VA!a!k9V#m;Iez>&nx;`$SV(1MWtaBy@^WNZ=Gd`g
z)YQ}v6B9EaIW9dKv2+^#Xj*iihDMe(_Ux(Q)Tw4P4ZirIh8JF#jKR?R6IIg&me<l;
zpG$4|c9NF7hNjkIYpnvc9!(#KsyMJ)&LGPY@%N0S@I*E<7Q8kfIsGLkCx^VeJRW=O
zF_-O+KmIsVr%v^$4!4_vf&$9R%K`ZC!w=o|D=I3Yq@={VhDI!%hCix06P@lHy=|U6
zeY%AYKDa__>&?$NHT4P$7KAf*ZfGwvOQ`BBkM*%yu5hvNzxd_DZ=gC#vD^Gm9Y3No
zjKpCxf_e^BZbebU2@Xx9sUg*48J^PI+{`o2JcA@j%%4A>h=>S6LPCg)jAZ@#^=#U-
ziGYB<J-p$Hq9~-Nr=zMWGiJ;nBqYRTzlMeeN=i!j_~VaRwrtseWVtjneJ!1Wf`Vvk
zYa>2Ben3KRH_MkVCo3z9l#~>*v$JovIs-<h)1he^t*t$GHmhnJnikfpSCf`jL0Q>9
z7Widl7E)6yNK6cM8>`W@FjVz!kMvZPc1|2x#ELZ^VQD#yL8oE2Hr`zC>qcX5uSMb#
zHd`wr!q%fndepvOetCrsWAnfR4-gj@$M)^pnKf$`)22<kqm2yU4Dya2Kc2VWew*2|
zXS?i|las@S4I4Oe<OtWUU1Qw1aURQZnMc#HT<Tu#{BArtI@)XL$+wb+AAXnv2Mz#m
z=+GgSE?s(?H5wRty&m<aZ=>tnh)7g59&l|jii&QqYgcub^}VKPWMouRTztdj7?4nu
z1XMNBqg;xDZ|~=!)o)N%a)7^|+Ka>Che215WSok*sQ`nY4#if3Buz$9&1hO1;bSIx
zC0D0EG&MD`ckf=dZr#e$Pe09l_ubd;1hwIuN0X6}fubnPn>UY`m>9SHVq;^OGiMHF
zvzg4yOz-8<bR_9@FLx(CKAyb1JRjUT->_=cD!%#Vn=W<P+1V^v;+su^zQSNIpeViX
zqSmw^Wcfi<bz+Y;lgZ92uUv30nL1;!$ZXtro`wc{k2Y1Eh@zyRX`W??j*Whh%Re6B
zVo?UuXRJlFUBVC;hiolEl|xXKN@Q7&rjJ0<2V!n%L{W^`Y&H}{84>~4JB{-4a=!ic
zTf)M^c<7;r2oDc;+czpIie<}|5fl_eMn(qB&An%wyTYZRIdS3yetv#E%C49{e?B=m
zIUWnX)vR8<n#{~hmu=sD_Z^EDFTS-34G^Qz*zdTRs!l?dA4Svtkw!1e8vFLuk)Pk>
zcHF5`%|Gql?(FRtk>y8G)kz-fJUQWyG?)~|j)_5&uVW03p}nn^?++cpKX?ju>v?p3
zGmx$4@be#!>Dpz2!)Ic#Sg=?uSglst+uKFF(91ma)KhHQw26fad*4nXNfIe3DZKjX
ztE^eGreDXG_LyV$?%mqDb?Y#j&CbdW!{Tr_x|9XO5e0)`KL$f4l4Rq`l{TJz_RLR*
zU%B=aBuQe?q6kt`XEAwl5Sr$XEU!eC9|b%=o2ad=4U5G>UHJ~GFK#Dc&LYm7$Y<)*
z*~H#^FV>bqEY<+(Dl3@vz$+a6W*cD>f6Lej$<E_OI*t|TDEF69qegk8tEb*m=kJYs
z9Y*%qr>hd4<<Z<QyIbnserjuLyZ%yT=NoLd+g+9g!x0@0$0MlfUHJL!Cq4ady&4&~
z`M;2pV<IiBlFgf!A<K`VD6_fg01s>#qtodKjs7+MVZY+y*_Y58#?oZEL|yG&1Q;iA
z{AebTQTJeOETpccmDqXr_p0AeVJPS_6m;kdv5DztfeuBPgQkr^mQBROG*DUD<aX1g
zBuR`PAA-#`3%mW_(X>gp3o7@Az`#J~;b=iYL5xcN5L<f-rkbOal^v(Cu87bvDU_BR
zpth!x>B;{~KtO=ggVE`9PEW=wnYw~ojxaPo8zfXUhTr_=53F4I6nS}B96b0nWo5No
zzivg-G{%h!V%oIvEM2;S`STwlHui2bZH!l>>-Bm@j2OX)5jTInMV2EN7a4=5ZE!x3
z=PGs_?M;jr72V}zM8WXK8Kb#zW9Y8)1OmbEq^_>ceT+sR5D2`9@Jj^(fzJ_!Mj#OQ
z9ARh#0)fvFF&cqD;ByRc^8g@$Kp^lH24K+VfeHiyL2vv&{;&eKW?Zma00000NkvXX
Hu0mjfN>DgL

literal 0
HcmV?d00001

diff --git a/mainwindow.cpp b/mainwindow.cpp
index aa21295..c8d2815 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -159,6 +159,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     menuBar()->addMenu(dockMenu);
 
     QMenu *helpMenu = menuBar()->addMenu(tr("Help"));
+    helpMenu->addAction(tr("Help"), [this]{ HelpDialog help(this); help.exec(); }, QKeySequence::HelpContents);
     helpMenu->addAction(tr("About Tenmon"), [this]{ About about(this); about.exec(); });
     helpMenu->addAction(tr("About Qt"), [this](){ QMessageBox::aboutQt(this); });
 
diff --git a/resources.qrc b/resources.qrc
index 027094b..0869b28 100644
--- a/resources.qrc
+++ b/resources.qrc
@@ -15,6 +15,15 @@
         <file>about/pcl</file>
         <file>translations/tenmon_en.qm</file>
         <file>translations/tenmon_sk.qm</file>
+        <file>about/filter.png</file>
+        <file>about/stretch-panel.png</file>
     </qresource>
-    <qresource prefix="/about"/>
+    <qresource lang="en" prefix="/">
+        <file alias="help">about/help_en</file>
+    </qresource>
+    <qresource lang="sk" prefix="/">
+        <file alias="help">about/help_sk</file>
+    </qresource>
+    <qresource prefix="/help"/>
+    <qresource prefix="/helpimg"/>
 </RCC>