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added exercise10 to chapter13
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‎Chapter13/README.md

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@@ -141,3 +141,6 @@ Here is a collection of heights in centimeters together with the number of peopl
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## [Exercise 9](exercises/09)
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Find another data set of heights (an inch is 2.54cm) and graph them with your program from the previous exercise. For example, search the Web for "height distribution" or "height of people in the United States" and ignore a lot of rubbish or ask your friends for their heights. Ideally, you don't have to change anything for the new data set. Calculating the scaling from the data is a key idea. Reading in labels from input also helps minimize changes when you want to reuse code.
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## [Exercise 10](exercises/10)
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What kind of data is unsuitable for a line graph or a bar graph? Find an example and find a way of displaying it (e.g., as a collection of labeled points).

‎Chapter13/exercises/10/CMakeLists.txt

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cmake_minimum_required(VERSION 3.5)
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project(Programming_Qt VERSION 0.1 LANGUAGES CXX)
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set(CMAKE_AUTOUIC ON)
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set(CMAKE_AUTOMOC ON)
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set(CMAKE_AUTORCC ON)
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set(CMAKE_CXX_STANDARD 20)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
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find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
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set(PROJECT_SOURCES
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main.cpp
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PPP/Window.h
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PPP/Graph.h
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PPP/GUI.h
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PPP/Simple_window.h
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PPP/Point.h
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PPP/std_lib_facilities.h
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Window.cpp
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Graph.cpp
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PPP/Image_private.h
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GUI.cpp
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PPP/GUI_private.h
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Simple_window.cpp
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Colormap.cpp
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)
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if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
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qt_add_executable(Programming_Qt
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MANUAL_FINALIZATION
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${PROJECT_SOURCES}
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data.txt
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)
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# Define target properties for Android with Qt 6 as:
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# set_property(TARGET Programming_Qt APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
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# ${CMAKE_CURRENT_SOURCE_DIR}/android)
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# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
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else()
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if(ANDROID)
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add_library(Programming_Qt SHARED
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${PROJECT_SOURCES}
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)
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# Define properties for Android with Qt 5 after find_package() calls as:
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# set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
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else()
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add_executable(Programming_Qt
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${PROJECT_SOURCES}
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)
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endif()
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endif()
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target_link_libraries(Programming_Qt PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
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target_include_directories(Programming_Qt PRIVATE .)
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set_target_properties(Programming_Qt PROPERTIES
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MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
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MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
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MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
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MACOSX_BUNDLE TRUE
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WIN32_EXECUTABLE TRUE
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)
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if(MSVC)
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target_compile_options(Programming_Qt PRIVATE /EHsc /W4 /WX)
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else()
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target_compile_options(Programming_Qt PRIVATE -Wall -Wextra -Wpedantic -Werror -O3)
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endif()
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if (EMSCRIPTEN)
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target_link_options(Programming_Qt PUBLIC -sASYNCIFY -Os)
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endif()
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install(TARGETS Programming_Qt
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BUNDLE DESTINATION .
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
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if(QT_VERSION_MAJOR EQUAL 6)
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qt_finalize_executable(Programming_Qt)
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endif()

‎Chapter13/exercises/10/Colormap.cpp

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#include <QColor>
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#include <PPP/Image_private.h>
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static QColor paletteColorMap[]
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= {{0, 0, 0}, {255, 0, 0}, {0, 255, 0}, {255, 255, 0}, {0, 0, 255},
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{255, 0, 255}, {0, 255, 255}, {255, 255, 255}, {85, 85, 85}, {198, 113, 113},
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{113, 198, 113}, {142, 142, 56}, {113, 113, 198}, {142, 56, 142}, {56, 142, 142},
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{0, 0, 128}, {168, 168, 152}, {232, 232, 216}, {104, 104, 88}, {152, 168, 168},
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{216, 232, 232}, {88, 104, 104}, {156, 156, 168}, {220, 220, 232}, {92, 92, 104},
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{156, 168, 156}, {220, 232, 220}, {92, 104, 92}, {144, 144, 144}, {192, 192, 192},
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{80, 80, 80}, {160, 160, 160}, {0, 0, 0}, {13, 13, 13}, {26, 26, 26},
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{38, 38, 38}, {49, 49, 49}, {61, 61, 61}, {72, 72, 72}, {85, 85, 85},
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{95, 95, 95}, {106, 106, 106}, {117, 117, 117}, {128, 128, 128}, {138, 138, 138},
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{149, 149, 149}, {160, 160, 160}, {170, 170, 170}, {181, 181, 181}, {192, 192, 192},
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{203, 203, 203}, {213, 213, 213}, {224, 224, 224}, {234, 234, 234}, {245, 245, 245},
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{255, 255, 255}, {0, 0, 0}, {0, 36, 0}, {0, 72, 0}, {0, 109, 0},
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{0, 145, 0}, {0, 182, 0}, {0, 218, 0}, {0, 255, 0}, {63, 0, 0},
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{63, 36, 0}, {63, 72, 0}, {63, 109, 0}, {63, 145, 0}, {63, 182, 0},
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{63, 218, 0}, {63, 255, 0}, {127, 0, 0}, {127, 36, 0}, {127, 72, 0},
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{127, 109, 0}, {127, 145, 0}, {127, 182, 0}, {127, 218, 0}, {127, 255, 0},
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{191, 0, 0}, {191, 36, 0}, {191, 72, 0}, {191, 109, 0}, {191, 145, 0},
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{191, 182, 0}, {191, 218, 0}, {191, 255, 0}, {255, 0, 0}, {255, 36, 0},
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{255, 72, 0}, {255, 109, 0}, {255, 145, 0}, {255, 182, 0}, {255, 218, 0},
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{255, 255, 0}, {0, 0, 63}, {0, 36, 63}, {0, 72, 63}, {0, 109, 63},
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{0, 145, 63}, {0, 182, 63}, {0, 218, 63}, {0, 255, 63}, {63, 0, 63},
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{63, 36, 63}, {63, 72, 63}, {63, 109, 63}, {63, 145, 63}, {63, 182, 63},
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{63, 218, 63}, {63, 255, 63}, {127, 0, 63}, {127, 36, 63}, {127, 72, 63},
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{127, 109, 63}, {127, 145, 63}, {127, 182, 63}, {127, 218, 63}, {127, 255, 63},
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{191, 0, 63}, {191, 36, 63}, {191, 72, 63}, {191, 109, 63}, {191, 145, 63},
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{191, 182, 63}, {191, 218, 63}, {191, 255, 63}, {255, 0, 63}, {255, 36, 63},
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{255, 72, 63}, {255, 109, 63}, {255, 145, 63}, {255, 182, 63}, {255, 218, 63},
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{255, 255, 63}, {0, 0, 127}, {0, 36, 127}, {0, 72, 127}, {0, 109, 127},
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{0, 145, 127}, {0, 182, 127}, {0, 218, 127}, {0, 255, 127}, {63, 0, 127},
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{63, 36, 127}, {63, 72, 127}, {63, 109, 127}, {63, 145, 127}, {63, 182, 127},
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{63, 218, 127}, {63, 255, 127}, {127, 0, 127}, {127, 36, 127}, {127, 72, 127},
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{127, 109, 127}, {127, 145, 127}, {127, 182, 127}, {127, 218, 127}, {127, 255, 127},
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{191, 0, 127}, {191, 36, 127}, {191, 72, 127}, {191, 109, 127}, {191, 145, 127},
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{191, 182, 127}, {191, 218, 127}, {191, 255, 127}, {255, 0, 127}, {255, 36, 127},
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{255, 72, 127}, {255, 109, 127}, {255, 145, 127}, {255, 182, 127}, {255, 218, 127},
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{255, 255, 127}, {0, 0, 191}, {0, 36, 191}, {0, 72, 191}, {0, 109, 191},
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{0, 145, 191}, {0, 182, 191}, {0, 218, 191}, {0, 255, 191}, {63, 0, 191},
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{63, 36, 191}, {63, 72, 191}, {63, 109, 191}, {63, 145, 191}, {63, 182, 191},
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{63, 218, 191}, {63, 255, 191}, {127, 0, 191}, {127, 36, 191}, {127, 72, 191},
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{127, 109, 191}, {127, 145, 191}, {127, 182, 191}, {127, 218, 191}, {127, 255, 191},
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{191, 0, 191}, {191, 36, 191}, {191, 72, 191}, {191, 109, 191}, {191, 145, 191},
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{191, 182, 191}, {191, 218, 191}, {191, 255, 191}, {255, 0, 191}, {255, 36, 191},
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{255, 72, 191}, {255, 109, 191}, {255, 145, 191}, {255, 182, 191}, {255, 218, 191},
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{255, 255, 191}, {0, 0, 255}, {0, 36, 255}, {0, 72, 255}, {0, 109, 255},
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{0, 145, 255}, {0, 182, 255}, {0, 218, 255}, {0, 255, 255}, {63, 0, 255},
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{63, 36, 255}, {63, 72, 255}, {63, 109, 255}, {63, 145, 255}, {63, 182, 255},
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{63, 218, 255}, {63, 255, 255}, {127, 0, 255}, {127, 36, 255}, {127, 72, 255},
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{127, 109, 255}, {127, 145, 255}, {127, 182, 255}, {127, 218, 255}, {127, 255, 255},
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{191, 0, 255}, {191, 36, 255}, {191, 72, 255}, {191, 109, 255}, {191, 145, 255},
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{191, 182, 255}, {191, 218, 255}, {191, 255, 255}, {255, 0, 255}, {255, 36, 255},
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{255, 72, 255}, {255, 109, 255}, {255, 145, 255}, {255, 182, 255}, {255, 218, 255},
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{255, 255, 255}};
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namespace Graph_lib {
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QColor mapPaletteColor(int rawColor)
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{
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return paletteColorMap[rawColor % 256];
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}
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} // namespace Graph_lib

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