Font extension occurs flickering problem on browsers

[oleksandr.voloschuk]

Hi gurus,

Could anyone help me to understand next behavior?

1. on server (Centos VM) installed font google-crosextra-

carlito-fonts.noarch (only this one contains necessary calibri font for my customer):
# yum search calibri
google-crosextra-carlito-fonts.noarch : Sans-serif font metric-compatible with Calibri font

# yum install google-crosextra-carlito-fonts.noarch
# ls -l /usr/share/fonts/google-crosextra-carlito
-rw-r--r-- 1 root root 816716 Sep 20 2013 Carlito-BoldItalic.ttf
-rw-r--r-- 1 root root 690516 Sep 20 2013 Carlito-Bold.ttf
-rw-r--r-- 1 root root 623416 Sep 20 2013 Carlito-Italic.ttf
-rw-r--r-- 1 root root 635996 Sep 20 2013 Carlito-Regular.ttf

"registered" new font in the system with command (but also reboot server):
# fc-cache -f -v

2. created simple report on Studio with some text fields (Blank_A4.jrxml)
3. added font Carlito-Regular.ttf (from Centos server) to Studio (see screen)
4. exported Carlito-Regular.jar file from Carlito-Regular.ttf copied to WEB-INF/lib folder; restarted application server + removed all caches from /temp & /work
5. added to report font extension, saved it and published to JRS

As result - on JRS it seems flickering problem during report execution. Please see screencast:
https://www.screencast.com/t/O3EH5FAE5n1L

Tried to apply a few different font to the report (Blank_A4_2 & Blank_A4_3 on video) as well as calibri.ttf downloaded from internet - the same result (on Chrome, Firefox, IE).
It looks like report is first trying to load the some default font form OS and then the applied font from font family.

Will be appreciate for any help.

Thanks,
Oleksandr

[m.kamran]

I think this problem usually arises because of the use of a custom font, I have experienced the same using a standard font and a custom font both for the same report and the custom font text shows, disppears and then re-appears. Can you please try using a standard font and see if the problem happens again on the same report?

Thanks.

[oleksandr.voloschuk]

m.kamran,

thank you for your response.

I tried to use default fonts from linux (like DejaVu or Liberation), but result is the same.

If you see my video, these fonts I used on Blank_A4_2 & Blank_A4_3 reports

[m.kamran]

I see, would it be possible for you to please share your jrxml?

Thanks.

[oleksandr.voloschuk]

<?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 6.4.2.final using JasperReports Library version 6.4.1  --><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="Blank_A4" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="f0d27607-3956-4a23-9f8a-92189b2e6fb7">    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>    <property name="ireport.jasperserver.url" value="http://hostanme:8080/jasperserver-pro/"/>    <property name="ireport.jasperserver.user" value="superuser"/>    <property name="ireport.jasperserver.reportUnit" value="/public/Blank_A4"/>    <property name="ireport.jasperserver.report.resource" value="/public/Blank_A4_files/main_jrxml"/>    <queryString>        <![CDATA[]]>    </queryString>    <background>        <band splitType="Stretch"/>    </background>    <title>        <band height="79" splitType="Stretch">            <staticText>                <reportElement x="0" y="0" width="555" height="79" uuid="aaffc397-2eb6-44d3-a25c-cf8eb1bc689f"/>                <textElement textAlignment="Center" verticalAlignment="Middle">                    <font fontName="Carlito-Regular" size="35"/>                </textElement>                <text><![CDATA[Report Title Text]]></text>            </staticText>        </band>    </title>    <summary>        <band height="90">            <staticText>                <reportElement x="0" y="20" width="555" height="70" uuid="9d1e7c46-dadd-42f5-af78-49f96bdecb75"/>                <textElement>                    <font fontName="Carlito-Regular" size="19"/>                </textElement>                <text><![CDATA[This is a test report. Ddddd PPPpppp CCCCCcccc.]]></text>            </staticText>        </band>    </summary></jasperReport>[/code]

 

 

Carlito-Regular.ttf you could get by commands:

# yum install google-crosextra-carlito-fonts.noarch

# cd /usr/share/fonts/google-crosextra-carlito