Motif编程手册：Open源版详解

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"Vol6A_Motif Programming Manual" 是关于Motif编程的一本权威指南，专为Motif 2.1版本设计。这本书由Antony Fountain, Jeremy Huxtable, Paula Ferguson和Dan Heller合著，并在2001年12月首次出版，后于2002年3月进行了小幅度修正。本书是开放源代码版，遵循Open Publication License v1.0或更高版本的条款分发。 Motif是一个用于X Window System的图形用户界面(GUI)库，它提供了窗口管理、控件、菜单、对话框等组件，用于构建复杂的桌面应用程序。X Window System是一个开源的窗口系统，广泛应用于Unix和类Unix系统中，允许用户通过图形化的方式来交互操作计算机。在《Motif Programming Manual》中，读者可以学习到以下核心知识点： 1. **Motif库和API**：书中详细介绍了Motif库提供的各种函数和数据结构，如如何创建和管理窗口、控件以及事件处理机制。 2. **控件和小部件**：Motif包含一系列预定义的小部件，如按钮、文本框、列表框等，开发者可以通过这些小部件构建用户界面。手册会解释如何创建、配置和布局这些小部件。 3. **事件模型**：X Window System基于事件驱动的模型，书中会阐述如何处理鼠标点击、键盘输入等各种用户交互事件。 4. **图形绘制**：Motif库支持在窗口上进行基本的图形绘制，如线条、矩形、文本等，手册会介绍相关的绘图函数。 5. **菜单和对话框**：在GUI设计中，菜单和对话框是不可或缺的部分。手册将指导如何创建和管理这些元素。 6. **主题和外观**：Motif支持主题，允许用户自定义界面的视觉样式。手册会讲解如何应用和定制主题。 7. **多线程编程**：由于Motif设计时考虑了多线程环境，手册也会涵盖在多线程程序中使用Motif的相关注意事项。 8. **国际化与本地化**：对于开发面向全球用户的软件，手册会讨论如何实现文本的国际化和界面的本地化。 9. **性能优化**：书中可能包含一些提高Motif应用程序性能的策略和最佳实践。 10. **错误处理和调试**：提供有关如何识别和解决Motif编程中遇到的问题的指导。此外，该书还可能包含实际示例代码和练习，帮助读者更好地理解和应用所学知识。对于任何想要深入理解并使用Motif开发X Window System应用程序的开发者来说，这是一份非常宝贵的资源。

Preface

xvi Motif Programming Manual

than trying to teach Xlib drawing techniques. Some knowledge of Xlib is assumed; we

direct the reader to Volume 1, for additional information.

Chapter 12

Labels and Buttons provides an in-depth look at labels and buttons, the most common-

ly-used primitive widgets. The chapter discusses the Label, PushButton, ToggleBut-

ton, ArrowButton, and DrawnButton widget classes.

Chapter 13

The List Widget describes yet another method for the user to exert control over an ap-

plication. A List widget displays a group of items from which the user can make a se-

lection.

Chapter 14

The ComboBox Widget describes another component which is new in Motif 2. The

ComboBox combines List display with Text input, although the List can be hidden un-

til required. The widget therefore maximizes user convenience using the minimal of

screen space.

Chapter 15

The SpinBox and SimpleSpinBox Widgets are also new in Motif 2. Similar in concept

to the ComboBox, the widgets allow the user to choose from a set of values, and the

current choice is presented through a TextField. The difference is that the user changes

the current choice not by selecting from a List, but by rotating through the set of avail-

able values using ArrowButtons provided for the purpose.

Chapter 16

The Scale Widget describes how to use the Scale to display a range of values.

Chapter 17

The Notebook Widget describes a component which provides page or tab manager

functionality to the Motif 2 toolkit. The programmer adds children to the Notebook,

only one of which is visible at any given time. The user can select between pages using

Tabs (PushButtons) aligned along the edges of the Notebook, or by selecting the re-

quired page number from a SpinBox which the Notebook creates automatically.

Chapter 18

Text Widgets explains how the Text and TextField widgets can be used to provide text

entry in an application, from a single data-entry field to a full-fledged text editor. Spe-

cial attention is paid to problems such as how to mask or convert data input by the user

so as to control its format. The chapter also discusses the internationalization features

of the widgets provided in Motif 1.2.

Chapter 19

Menus describes the menus provided by the Motif toolkit.The chapter examines how

menus are created and presents some generalized menu creation routines.

Motif Programming Manual xvii

Preface

Chapter 20

Interacting With the Window Manager provides additional information on the relation-

ship between an application and the Motif Window Manager (mwm). It discusses the

shell widget resources and window manager protocols that can be used to communi-

cate with the window manager. It also discusses various CDE desktop aspects of the

window manager interaction.

Chapter 21

The Clipboard describes a way for the application to interact with other applications.

Data is placed on the clipboard, where it can be accessed by other windows on the

desktop, regardless of the applications with which they are associated.

Chapter 22

Drag and Drop presents the drag and drop mechanism for transferring data that is pro-

vided in Motif 1.2. The chapter describes the built-in drag and drop features of the Mo-

tif toolkit and provides examples of adding drag and drop functionality to an

application.

Chapter 23

The Uniform Transfer Model describes the scheme introduced in Motif 2 which allows

the programmer to handle the various data transfer operations supported by Motif (Pri-

mary and Secondary Selections, the Clipboard, Drag-and-Drop) using a single pro-

gramming interface.

Chapter 24

Render Tables describes the Motif 2 mechanisms which control the way in which com-

pound strings are displayed by the toolkit. In Motif 2, strings which appear in widgets

can be multi-colored, multi-font, and laid out in a multi-column arrangement. The col-

oration, font, and tabular information is held separately from the string which is to be

drawn in the form of a render table.

Chapter 25

Compound Strings describes Motif’s technology for encoding font and directional in-

formation in the strings that are used by almost all Motif widgets. It discusses how to

use compound strings in an internationalized application.

Chapter 26

Signal Handling presents the problems that can be encountered when mixing UNIX

signals with X applications. It explains how signals work and why they can wreak such

havoc with X. It presents the new features of X11R6 which are expressly designed to

handle this problem.

Chapter 27

Advanced Dialog Programming describes the issues involved in creating multi-stage

help systems, using WorkingDialogs that allow the user to interrupt long-running

tasks, and dynamically changing the pixmaps displayed in a dialog.

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