Temporary commit (will be removed by rebase)

.clang-format

@@ -0,0 +1,67 @@
+---
+Language:        Cpp
+Standard: Cpp11
+AccessModifierOffset: -2
+AlignAfterOpenBracket: true
+AlignEscapedNewlinesLeft: false
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: false
+AlwaysBreakTemplateDeclarations: false
+AlwaysBreakBeforeMultilineStrings: false
+BreakBeforeBinaryOperators: None
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializersBeforeComma: false
+BinPackParameters: false
+BinPackArguments: false
+ColumnLimit:     80
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+DerivePointerAlignment: false
+ExperimentalAutoDetectBinPacking: false
+IndentCaseLabels: false
+IndentWrappedFunctionNames: false
+IndentFunctionDeclarationAfterType: false
+MaxEmptyLinesToKeep: 1
+KeepEmptyLinesAtTheStartOfBlocks: true
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakString: 1000
+PenaltyBreakFirstLessLess: 120
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 15
+PointerAlignment: Right
+SpacesBeforeTrailingComments: 1
+Cpp11BracedListStyle: true
+Standard:        Cpp11
+IndentWidth:     4
+TabWidth:        4
+UseTab:          Never
+BreakBeforeBraces: Linux
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpacesInAngles:  false
+SpaceInEmptyParentheses: false
+SpacesInCStyleCastParentheses: false
+SpaceAfterCStyleCast: true
+SpacesInContainerLiterals: true
+SpaceBeforeAssignmentOperators: true
+ContinuationIndentWidth: 8
+ForEachMacros:   [ foreach ]
+SpaceBeforeParens: ControlStatements
+DisableFormat:   false
+ForEachMacros: []
+MacroBlockBegin: "^START_TEST$"
+MacroBlockEnd: "^END_TEST$"
+...
+

.gitignore

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+# Eclipse project file and directories
+.cproject
+.project
+.settings
+# Backup files made automatically by text editor
+*~

CMakeLists.txt

@@ -0,0 +1,30 @@
+cmake_minimum_required(VERSION 2.8)
+
+include(FindPkgConfig)
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11 -Werror=unused-result -Werror=format -Werror=implicit -Werror=return-type -Werror=uninitialized -Wno-deprecated -fPIE -pie -Wl,-z,relro")
+
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0 -fstack-check -fbounds-check")
+
+set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O0 -fstack-protector-all -Wall")
+
+set(PROJECT_NAME emdevgtk)
+
+if(NOT DEFINED LIBDIR)
+    if(CMAKE_INSTALL_PREFIX STREQUAL "")
+        set(LIBDIR "/usr/lib/${PROJECT_NAME}")
+    elseif(CMAKE_INSTALL_PREFIX STREQUAL "/opt")
+        set(LIBDIR "/opt/${PROJECT_NAME}/lib")
+    elseif(CMAKE_INSTALL_PREFIX STREQUAL "/usr/local")
+        set(LIBDIR "/usr/local/lib/${PROJECT_NAME}")
+    elseif(DEFINED CMAKE_INSTALL_PREFIX)
+        set(LIBDIR "${CMAKE_INSTALL_PREFIX}/${PROJECT_NAME}/lib")
+    else()
+        set(LIBDIR "/usr/local/lib/${PROJECT_NAME}")
+    endif()
+endif()
+
+include_directories("${CMAKE_CURRENT_SOURCE_DIR}/gtk3/gtk+/gtk")
+
+add_subdirectory(gtkwheelcontrol)
+

gtkwheelcontrol/CMakeLists.txt

@@ -0,0 +1,36 @@
+
+pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
+
+include_directories(
+    ${GTK3_INCLUDE_DIRS}
+)
+
+link_directories(
+    ${GTK3_LIBRARY_DIRS}
+)
+
+add_definitions(${GTK3_CFLAGS_OTHER})
+
+set(GTKCNCWIDGETS_SRCS
+    gtkwheelcontrol.c
+)
+
+add_library(gtkwheelcontrol SHARED
+    ${GTKCNCWIDGETS_SRCS}
+)
+
+target_link_libraries(gtkwheelcontrol
+    ${GTK3_LIBRARIES}
+)
+
+message("${LIBDIR}")
+
+install(TARGETS
+    gtkwheelcontrol
+DESTINATION
+    "${LIBDIR}"
+COMPONENT
+    libraries
+)
+
+

gtkwheelcontrol/gtkwheelcontrol.c

@@ -0,0 +1,155 @@
+#include <glib.h>
+#include <stdlib.h>
+
+#include "gtkwheelcontrol_priv.h"
+
+/*!
+ * Перечисление свойств виджета.
+ */
+enum {
+    PROP_0 = 0, //!< Код 0 использовать нельзя.
+    PROP_ROUND_OFFSET,
+    PROP_ROUND_LENGTH
+};
+
+//! Регистрация типа данных GtkWheelControl с объявлением служебных функций.
+G_DEFINE_TYPE_WITH_PRIVATE(GtkWheelControl, gtk_wheel_control, GTK_TYPE_WIDGET);
+
+static void gtk_wheel_control_finalize(GObject *object)
+{
+    GtkWheelControl *wheel_control = GTK_WHEEL_CONTROL(object);
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    G_OBJECT_CLASS(gtk_wheel_control_parent_class)->finalize(object);
+}
+
+void gtk_wheel_control_set_length(GtkWheelControl *wheel_control,
+                                  gdouble length)
+{
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    priv->round_length = length;
+}
+
+void gtk_wheel_control_set_offset(GtkWheelControl *wheel_control,
+                                  gdouble offset)
+{
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    priv->round_offset = offset;
+}
+
+static void gtk_wheel_control_set_property(GObject *object,
+                                           guint prop_id,
+                                           const GValue *value,
+                                           GParamSpec *pspec)
+{
+    GtkWheelControl *wheel_control = GTK_WHEEL_CONTROL(object);
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    switch (prop_id) {
+    case PROP_ROUND_LENGTH:
+        gtk_wheel_control_set_length(wheel_control, g_value_get_double(value));
+        break;
+    case PROP_ROUND_OFFSET:
+        gtk_wheel_control_set_offset(wheel_control, g_value_get_double(value));
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+//! Получение значения свойства виджета по его идентификатору.
+static void gtk_wheel_control_get_property(GObject *object,
+                                           guint prop_id,
+                                           GValue *value,
+                                           GParamSpec *pspec)
+{
+    GtkWheelControl *wheel_control = GTK_WHEEL_CONTROL(object);
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    switch (prop_id) {
+    case PROP_ROUND_OFFSET:
+        g_value_set_double(value, priv->round_length);
+        break;
+    case PROP_ROUND_LENGTH:
+        g_value_set_double(value, priv->round_offset);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+static gboolean gtk_wheel_control_draw(GtkWidget *widget, cairo_t *cr)
+{
+    gtk_css_gadget_draw(GTK_LABEL(widget)->priv->gadget, cr);
+
+    return FALSE;
+}
+
+//! Инициализация класса виджета.
+static void gtk_wheel_control_class_init(GtkWheelControlClass *klass)
+{
+    GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
+
+    gobject_class->get_property = gtk_wheel_control_get_property;
+    gobject_class->set_property = gtk_wheel_control_set_property;
+
+    gobject_class->finalize = gtk_wheel_control_finalize;
+
+    widget_class->draw = gtk_wheel_control_draw;
+
+    g_object_class_install_property(gobject_class,
+                                    PROP_ROUND_LENGTH,
+                                    g_param_spec_double("length",
+                                                        ("Round length"),
+                                                        ("One round length"),
+                                                        -G_MAXDOUBLE,
+                                                        G_MAXDOUBLE,
+                                                        0,
+                                                        G_PARAM_READWRITE));
+    g_object_class_install_property(
+            gobject_class,
+            PROP_ROUND_OFFSET,
+            g_param_spec_double("offset",
+                                ("Round offset"),
+                                ("Offset relative to upper point"),
+                                -G_MAXDOUBLE,
+                                G_MAXDOUBLE,
+                                0,
+                                G_PARAM_READWRITE));
+}
+
+//! Инициализация виджета (при создании).
+static void gtk_wheel_control_init(GtkWheelControl *wheel_control)
+{
+    GtkWidget *widget = GTK_WIDGET(wheel_control);
+
+    GtkWheelControlPrivate *priv =
+            gtk_wheel_control_get_instance_private(wheel_control);
+
+    wheel_control->priv = priv;
+    priv->self = GTK_WIDGET(wheel_control);
+
+    priv->round_length = 1.0;
+
+    priv->round_offset = 0;
+}
+
+//! Функция создания виджета.
+GtkWidget *gtk_wheel_control_new(void)
+{
+    // вызов конструктора класса с передачей в конструктор параметров.
+    GtkWidget *wheel_control = GTK_WIDGET(
+            g_object_new(GTK_TYPE_WHEEL_CONTROL, NULL));
+
+    return wheel_control;
+}

gtkwheelcontrol/gtkwheelcontrol.h

@@ -0,0 +1,57 @@
+#ifndef GTK_WHEEL_CONTROL_H_
+#define GTK_WHEEL_CONTROL_H_
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_WHEEL_CONTROL (gtk_wheel_control_get_type())
+
+#define GTK_WHEEL_CONTROL(obj)                                                 \
+    (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_WHEEL_CONTROL, GtkWheelControl))
+
+#define GTK_WHEEL_CONTROL_CLASS(klass)                                         \
+    (G_TYPE_CHECK_CLASS_CAST(                                                  \
+            (klass), GTK_TYPE_WHEEL_CONTROL, GtkWheelControlClass))
+
+#define GTK_IS_WHEEL_CONTROL(obj)                                              \
+    (G_TYPE_CHECK_INSTANCE_TYPE((obj), GTK_TYPE_WHEEL_CONTROL))
+
+#define GTK_IS_WHEEL_CONTROLCLASS(klass)                                       \
+    (G_TYPE_CHECK_CLASS_TYPE((klass), GTK_TYPE_WHEEL_CONTROL))
+
+#define GTK_WHEEL_CONTROL_GET_CLASS(obj)                                       \
+    (G_TYPE_INSTANCE_GET_CLASS(                                                \
+            (obj), GTK_TYPE_WHEEL_CONTROL, GtkWheelControlClass))
+
+typedef struct _GtkWheelControl GtkWheelControl;
+typedef struct _GtkWheelControlPrivate GtkWheelControlPrivate;
+typedef struct _GtkWheelControlClass GtkWheelControlClass;
+
+struct _GtkWheelControl {
+    GtkWidget box;
+
+    GtkWheelControlPrivate *priv;
+};
+
+struct _GtkWheelControlClass {
+    GtkWidgetClass parent_class;
+
+    void (*reserved0)(void);
+    void (*reserved1)(void);
+    void (*reserved2)(void);
+    void (*reserved3)(void);
+    void (*reserved4)(void);
+    void (*reserved5)(void);
+    void (*reserved6)(void);
+    void (*reserved7)(void);
+};
+
+void gtk_wheel_control_set_length(GtkWheelControl *wheel_control,
+                                  gdouble length);
+void gtk_wheel_control_set_offset(GtkWheelControl *wheel_control,
+                                  gdouble offset);
+
+G_END_DECLS
+
+#endif /* GTK_WHEEL_CONTROL_H_ */

gtkwheelcontrol/gtkwheelcontrol_priv.h

@@ -0,0 +1,23 @@
+#ifndef GTK_WHEEL_CONTROL_PRIV_H_
+#define GTK_WHEEL_CONTROL_PRIV_H_
+
+#include <gtk/gtk.h>
+
+#include "gtkwheelcontrol.h"
+#include "gtkcsscustomgadget.h"
+
+G_BEGIN_DECLS
+
+//! Внутренние данные виджета.
+struct _GtkWheelControlPrivate {
+    GtkWidget *self;
+
+    GtkCssGadget *gadget;
+
+    gdouble round_length;
+    gdouble round_offset;
+};
+
+G_END_DECLS
+
+#endif /* GTK_WHEEL_CONTROL_PRIV_H_ */