396674ce2e
This patch moves built-in Class (for now only mag-ribbon) into special directory as you have written it in TODO: in comments of this class in panel_io.cxx. IMHO it is good idea. I want to play with built-in classes and OpenGC and this will be useful.
800 lines
24 KiB
C++
800 lines
24 KiB
C++
// panel_io.cxx - I/O for 2D panel.
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//
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// Written by David Megginson, started January 2000.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <string.h> // for strcmp()
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#include <simgear/compiler.h>
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#include <simgear/misc/exception.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/debug/logstream.hxx>
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#include <simgear/misc/props.hxx>
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#include STL_IOSTREAM
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#include STL_FSTREAM
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#include STL_STRING
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#include <Main/globals.hxx>
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#include <Main/fg_props.hxx>
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#include <GUI/gui.h>
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#include "panel.hxx"
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#include "steam.hxx"
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#include "panel_io.hxx"
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//built-in layers
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#include "built_in/FGMagRibbon.hxx"
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#if !defined (SG_HAVE_NATIVE_SGI_COMPILERS)
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SG_USING_STD(istream);
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SG_USING_STD(ifstream);
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#endif
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SG_USING_STD(string);
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////////////////////////////////////////////////////////////////////////
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// Read and construct a panel.
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//
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// The panel is specified as a regular property list, and each of the
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// instruments is its own, separate property list (and thus, a separate
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// XML document). The functions in this section read in the files
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// as property lists, then extract properties to set up the panel
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// itself.
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//
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// A panel contains zero or more instruments.
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//
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// An instrument contains one or more layers and zero or more actions.
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//
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// A layer contains zero or more transformations.
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//
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// Some special types of layers also contain other objects, such as
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// chunks of text or other layers.
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//
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// There are currently four types of layers:
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//
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// 1. Textured Layer (type="texture"), the default
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// 2. Text Layer (type="text")
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// 3. Switch Layer (type="switch")
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// 4. Built-in Layer (type="built-in", must also specify class)
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//
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// The only built-in layer so far is the ribbon for the magnetic compass
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// (class="compass-ribbon").
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//
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// There are three types of actions:
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//
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// 1. Adjust (type="adjust"), the default
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// 2. Swap (type="swap")
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// 3. Toggle (type="toggle")
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//
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// There are three types of transformations:
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//
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// 1. X shift (type="x-shift"), the default
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// 2. Y shift (type="y-shift")
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// 3. Rotation (type="rotation")
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//
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// Each of these may be associated with a property, so that a needle
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// will rotate with the airspeed, for example, or may have a fixed
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// floating-point value.
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////////////////////////////////////////////////////////////////////////
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/**
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* Read a cropped texture from the instrument's property list.
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*
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* The x1 and y1 properties give the starting position of the texture
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* (between 0.0 and 1.0), and the the x2 and y2 properties give the
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* ending position. For example, to use the bottom-left quarter of a
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* texture, x1=0.0, y1=0.0, x2=0.5, y2=0.5.
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*/
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static FGCroppedTexture
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readTexture (const SGPropertyNode * node)
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{
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FGCroppedTexture texture(node->getStringValue("path"),
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node->getFloatValue("x1"),
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node->getFloatValue("y1"),
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node->getFloatValue("x2", 1.0),
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node->getFloatValue("y2", 1.0));
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SG_LOG(SG_COCKPIT, SG_DEBUG, "Read texture " << node->getName());
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return texture;
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}
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/**
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* Test for a condition in the current node.
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*/
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////////////////////////////////////////////////////////////////////////
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// Read a condition and use it if necessary.
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////////////////////////////////////////////////////////////////////////
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static void
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readConditions (FGConditional * component, const SGPropertyNode * node)
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{
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const SGPropertyNode * conditionNode = node->getChild("condition");
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if (conditionNode != 0)
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// The top level is implicitly AND
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component->setCondition(fgReadCondition(conditionNode));
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}
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/**
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* Read an action from the instrument's property list.
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*
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* The action will be performed when the user clicks a mouse button
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* within the specified region of the instrument. Actions always work
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* by modifying the value of a property (see the SGPropertyNode
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* class).
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*
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* The following action types are defined:
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*
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* "adjust" - modify the value of a floating-point property by
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* the increment specified. This is the default.
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*
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* "swap" - swap the values of two-floating-point properties.
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*
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* "toggle" - toggle the value of a boolean property between true and
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* false.
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*
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* For the adjust action, it is possible to specify an increment
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* (use a negative number for a decrement), a minimum allowed value,
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* a maximum allowed value, and a flag to indicate whether the value
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* should freeze or wrap-around when it reachs the minimum or maximum.
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*
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* The action will be scaled automatically if the instrument is not
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* being drawn at its regular size.
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*/
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static FGPanelAction *
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readAction (const SGPropertyNode * node, float w_scale, float h_scale)
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{
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string name = node->getStringValue("name");
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int button = node->getIntValue("button");
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int x = int(node->getIntValue("x") * w_scale);
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int y = int(node->getIntValue("y") * h_scale);
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int w = int(node->getIntValue("w") * w_scale);
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int h = int(node->getIntValue("h") * h_scale);
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FGPanelAction * action = new FGPanelAction(button, x, y, w, h);
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vector<const SGPropertyNode *>bindings = node->getChildren("binding");
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for (unsigned int i = 0; i < bindings.size(); i++) {
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SG_LOG(SG_INPUT, SG_INFO, "Reading binding "
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<< bindings[i]->getStringValue("command"));
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action->addBinding(new FGBinding(bindings[i])); // TODO: allow modifiers
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}
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readConditions(action, node);
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return action;
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}
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/**
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* Read a transformation from the instrument's property list.
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*
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* The panel module uses the transformations to slide or spin needles,
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* knobs, and other indicators, and to place layers in the correct
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* positions. Every layer starts centered exactly on the x,y co-ordinate,
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* and many layers need to be moved or rotated simply to display the
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* instrument correctly.
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*
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* There are three types of transformations:
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*
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* "x-shift" - move the layer horizontally.
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*
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* "y-shift" - move the layer vertically.
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*
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* "rotation" - rotate the layer.
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*
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* Each transformation may have a fixed offset, and may also have
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* a floating-point property value to add to the offset. The
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* floating-point property may be clamped to a minimum and/or
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* maximum range and scaled (after clamping).
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*
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* Note that because of the way OpenGL works, transformations will
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* appear to be applied backwards.
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*/
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static FGPanelTransformation *
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readTransformation (const SGPropertyNode * node, float w_scale, float h_scale)
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{
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FGPanelTransformation * t = new FGPanelTransformation;
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string name = node->getName();
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string type = node->getStringValue("type");
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string propName = node->getStringValue("property", "");
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SGPropertyNode * target = 0;
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if (type.empty()) {
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SG_LOG( SG_COCKPIT, SG_ALERT,
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"No type supplied for transformation " << name
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<< " assuming \"rotation\"" );
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type = "rotation";
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}
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if (!propName.empty()) {
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target = fgGetNode(propName.c_str(), true);
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}
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t->node = target;
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t->min = node->getFloatValue("min", -9999999);
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t->max = node->getFloatValue("max", 99999999);
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t->factor = node->getFloatValue("scale", 1.0);
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t->offset = node->getFloatValue("offset", 0.0);
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// Check for an interpolation table
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const SGPropertyNode * trans_table = node->getNode("interpolation");
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if (trans_table != 0) {
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SG_LOG( SG_COCKPIT, SG_INFO, "Found interpolation table with "
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<< trans_table->nChildren() << "children" );
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t->table = new SGInterpTable();
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for(int i = 0; i < trans_table->nChildren(); i++) {
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const SGPropertyNode * node = trans_table->getChild(i);
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if (!strcmp(node->getName(), "entry")) {
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double ind = node->getDoubleValue("ind", 0.0);
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double dep = node->getDoubleValue("dep", 0.0);
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SG_LOG( SG_COCKPIT, SG_INFO, "Adding interpolation entry "
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<< ind << "==>" << dep );
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t->table->addEntry(ind, dep);
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} else {
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SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
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<< " in interpolation" );
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}
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}
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} else {
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t->table = 0;
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}
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// Move the layer horizontally.
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if (type == "x-shift") {
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t->type = FGPanelTransformation::XSHIFT;
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// t->min *= w_scale; //removed by Martin Dressler
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// t->max *= w_scale; //removed by Martin Dressler
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t->offset *= w_scale;
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t->factor *= w_scale; //Added by Martin Dressler
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}
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// Move the layer vertically.
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else if (type == "y-shift") {
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t->type = FGPanelTransformation::YSHIFT;
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//t->min *= h_scale; //removed
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//t->max *= h_scale; //removed
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t->offset *= h_scale;
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t->factor *= h_scale; //Added
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}
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// Rotate the layer. The rotation
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// is in degrees, and does not need
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// to scale with the instrument size.
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else if (type == "rotation") {
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t->type = FGPanelTransformation::ROTATION;
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}
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else {
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SG_LOG( SG_COCKPIT, SG_ALERT, "Unrecognized transformation type " << type );
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delete t;
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return 0;
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}
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readConditions(t, node);
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SG_LOG( SG_COCKPIT, SG_DEBUG, "Read transformation " << name );
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return t;
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}
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/**
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* Read a chunk of text from the instrument's property list.
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*
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* A text layer consists of one or more chunks of text. All chunks
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* share the same font size and color (and eventually, font), but
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* each can come from a different source. There are three types of
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* text chunks:
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*
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* "literal" - a literal text string (the default)
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*
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* "text-value" - the current value of a string property
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*
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* "number-value" - the current value of a floating-point property.
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*
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* All three may also include a printf-style format string.
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*/
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FGTextLayer::Chunk *
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readTextChunk (const SGPropertyNode * node)
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{
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FGTextLayer::Chunk * chunk;
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string name = node->getStringValue("name");
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string type = node->getStringValue("type");
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string format = node->getStringValue("format");
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// Default to literal text.
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if (type.empty()) {
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SG_LOG( SG_COCKPIT, SG_INFO, "No type provided for text chunk " << name
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<< " assuming \"literal\"");
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type = "literal";
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}
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// A literal text string.
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if (type == "literal") {
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string text = node->getStringValue("text");
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chunk = new FGTextLayer::Chunk(text, format);
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}
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// The value of a string property.
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else if (type == "text-value") {
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SGPropertyNode * target =
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fgGetNode(node->getStringValue("property"), true);
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chunk = new FGTextLayer::Chunk(FGTextLayer::TEXT_VALUE, target, format);
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}
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// The value of a float property.
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else if (type == "number-value") {
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string propName = node->getStringValue("property");
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float scale = node->getFloatValue("scale", 1.0);
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SGPropertyNode * target = fgGetNode(propName.c_str(), true);
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chunk = new FGTextLayer::Chunk(FGTextLayer::DOUBLE_VALUE, target,
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format, scale);
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}
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// Unknown type.
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else {
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SG_LOG( SG_COCKPIT, SG_ALERT, "Unrecognized type " << type
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<< " for text chunk " << name );
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return 0;
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}
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readConditions(chunk, node);
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return chunk;
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}
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/**
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* Read a single layer from an instrument's property list.
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*
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* Each instrument consists of one or more layers stacked on top
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* of each other; the lower layers show through only where the upper
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* layers contain an alpha component. Each layer can be moved
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* horizontally and vertically and rotated using transformations.
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*
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* This module currently recognizes four kinds of layers:
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*
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* "texture" - a layer containing a texture (the default)
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*
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* "text" - a layer containing text
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*
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* "switch" - a layer that switches between two other layers
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* based on the current value of a boolean property.
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*
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* "built-in" - a hard-coded layer supported by C++ code in FlightGear.
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*
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* Currently, the only built-in layer class is "compass-ribbon".
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*/
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static FGInstrumentLayer *
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readLayer (const SGPropertyNode * node, float w_scale, float h_scale)
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{
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FGInstrumentLayer * layer = NULL;
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string name = node->getStringValue("name");
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string type = node->getStringValue("type");
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int w = node->getIntValue("w", -1);
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int h = node->getIntValue("h", -1);
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if (w != -1)
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w = int(w * w_scale);
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if (h != -1)
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h = int(h * h_scale);
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if (type.empty()) {
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SG_LOG( SG_COCKPIT, SG_ALERT,
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"No type supplied for layer " << name
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<< " assuming \"texture\"" );
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type = "texture";
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}
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// A textured instrument layer.
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if (type == "texture") {
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FGCroppedTexture texture = readTexture(node->getNode("texture"));
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layer = new FGTexturedLayer(texture, w, h);
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}
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// A group of sublayers.
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else if (type == "group") {
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layer = new FGGroupLayer();
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for (int i = 0; i < node->nChildren(); i++) {
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const SGPropertyNode * child = node->getChild(i);
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cerr << "Trying child " << child->getName() << endl;
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if (!strcmp(child->getName(), "layer")) {
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cerr << "succeeded!" << endl;
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((FGGroupLayer *)layer)->addLayer(readLayer(child, w_scale, h_scale));
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}
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}
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}
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// A textual instrument layer.
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else if (type == "text") {
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FGTextLayer * tlayer = new FGTextLayer(w, h); // FIXME
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// Set the text color.
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float red = node->getFloatValue("color/red", 0.0);
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float green = node->getFloatValue("color/green", 0.0);
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float blue = node->getFloatValue("color/blue", 0.0);
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tlayer->setColor(red, green, blue);
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// Set the point size.
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float pointSize = node->getFloatValue("point-size", 10.0) * w_scale;
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tlayer->setPointSize(pointSize);
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// Set the font.
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string fontName = node->getStringValue("font", "default");
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tlayer->setFontName(fontName);
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const SGPropertyNode * chunk_group = node->getNode("chunks");
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if (chunk_group != 0) {
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int nChunks = chunk_group->nChildren();
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for (int i = 0; i < nChunks; i++) {
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const SGPropertyNode * node = chunk_group->getChild(i);
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if (!strcmp(node->getName(), "chunk")) {
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FGTextLayer::Chunk * chunk = readTextChunk(node);
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if (chunk != 0)
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tlayer->addChunk(chunk);
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} else {
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SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
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<< " in chunks" );
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}
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}
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layer = tlayer;
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}
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}
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// A switch instrument layer.
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else if (type == "switch") {
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SGPropertyNode * target =
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fgGetNode(node->getStringValue("property"), true);
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FGInstrumentLayer * layer1 =
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readLayer(node->getNode("layer[0]"), w_scale, h_scale);
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FGInstrumentLayer * layer2 =
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readLayer(node->getNode("layer[1]"), w_scale, h_scale);
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layer = new FGSwitchLayer(w, h, target, layer1, layer2);
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}
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// A built-in instrument layer.
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else if (type == "built-in") {
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string layerclass = node->getStringValue("class");
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if (layerclass == "mag-ribbon") {
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layer = new FGMagRibbon(w, h);
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}
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else if (layerclass.empty()) {
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SG_LOG( SG_COCKPIT, SG_ALERT, "No class provided for built-in layer "
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<< name );
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return 0;
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}
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else {
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SG_LOG( SG_COCKPIT, SG_ALERT, "Unknown built-in layer class "
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<< layerclass);
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return 0;
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}
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}
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// An unknown type.
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else {
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SG_LOG( SG_COCKPIT, SG_ALERT, "Unrecognized layer type " << type );
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delete layer;
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return 0;
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}
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//
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// Get the transformations for each layer.
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//
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const SGPropertyNode * trans_group = node->getNode("transformations");
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||
if (trans_group != 0) {
|
||
int nTransformations = trans_group->nChildren();
|
||
for (int i = 0; i < nTransformations; i++) {
|
||
const SGPropertyNode * node = trans_group->getChild(i);
|
||
if (!strcmp(node->getName(), "transformation")) {
|
||
FGPanelTransformation * t = readTransformation(node, w_scale, h_scale);
|
||
if (t != 0)
|
||
layer->addTransformation(t);
|
||
} else {
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
|
||
<< " in transformations" );
|
||
}
|
||
}
|
||
}
|
||
|
||
readConditions(layer, node);
|
||
SG_LOG( SG_COCKPIT, SG_DEBUG, "Read layer " << name );
|
||
return layer;
|
||
}
|
||
|
||
|
||
/**
|
||
* Read an instrument from a property list.
|
||
*
|
||
* The instrument consists of a preferred width and height
|
||
* (the panel may override these), together with a list of layers
|
||
* and a list of actions to be performed when the user clicks
|
||
* the mouse over the instrument. All co-ordinates are relative
|
||
* to the instrument's position, so instruments are fully relocatable;
|
||
* likewise, co-ordinates for actions and transformations will be
|
||
* scaled automatically if the instrument is not at its preferred size.
|
||
*/
|
||
static FGPanelInstrument *
|
||
readInstrument (const SGPropertyNode * node)
|
||
{
|
||
const string &name = node->getStringValue("name");
|
||
int x = node->getIntValue("x", -1);
|
||
int y = node->getIntValue("y", -1);
|
||
int real_w = node->getIntValue("w", -1);
|
||
int real_h = node->getIntValue("h", -1);
|
||
int w = node->getIntValue("w-base", -1);
|
||
int h = node->getIntValue("h-base", -1);
|
||
|
||
if (x == -1 || y == -1) {
|
||
SG_LOG( SG_COCKPIT, SG_ALERT,
|
||
"x and y positions must be specified and > 0" );
|
||
return 0;
|
||
}
|
||
|
||
float w_scale = 1.0;
|
||
float h_scale = 1.0;
|
||
if (real_w != -1) {
|
||
w_scale = float(real_w) / float(w);
|
||
w = real_w;
|
||
}
|
||
if (real_h != -1) {
|
||
h_scale = float(real_h) / float(h);
|
||
h = real_h;
|
||
}
|
||
|
||
SG_LOG( SG_COCKPIT, SG_DEBUG, "Reading instrument " << name );
|
||
|
||
FGLayeredInstrument * instrument =
|
||
new FGLayeredInstrument(x, y, w, h);
|
||
|
||
//
|
||
// Get the actions for the instrument.
|
||
//
|
||
const SGPropertyNode * action_group = node->getNode("actions");
|
||
if (action_group != 0) {
|
||
int nActions = action_group->nChildren();
|
||
for (int i = 0; i < nActions; i++) {
|
||
const SGPropertyNode * node = action_group->getChild(i);
|
||
if (!strcmp(node->getName(), "action")) {
|
||
FGPanelAction * action = readAction(node, w_scale, h_scale);
|
||
if (action != 0)
|
||
instrument->addAction(action);
|
||
} else {
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
|
||
<< " in actions" );
|
||
}
|
||
}
|
||
}
|
||
|
||
//
|
||
// Get the layers for the instrument.
|
||
//
|
||
const SGPropertyNode * layer_group = node->getNode("layers");
|
||
if (layer_group != 0) {
|
||
int nLayers = layer_group->nChildren();
|
||
for (int i = 0; i < nLayers; i++) {
|
||
const SGPropertyNode * node = layer_group->getChild(i);
|
||
if (!strcmp(node->getName(), "layer")) {
|
||
FGInstrumentLayer * layer = readLayer(node, w_scale, h_scale);
|
||
if (layer != 0)
|
||
instrument->addLayer(layer);
|
||
} else {
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
|
||
<< " in layers" );
|
||
}
|
||
}
|
||
}
|
||
|
||
readConditions(instrument, node);
|
||
SG_LOG( SG_COCKPIT, SG_DEBUG, "Done reading instrument " << name );
|
||
return instrument;
|
||
}
|
||
|
||
|
||
/**
|
||
* Construct the panel from a property tree.
|
||
*/
|
||
FGPanel *
|
||
readPanel (const SGPropertyNode * root)
|
||
{
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Reading properties for panel " <<
|
||
root->getStringValue("name", "[Unnamed Panel]") );
|
||
|
||
FGPanel * panel = new FGPanel();
|
||
panel->setWidth(root->getIntValue("w", 1024));
|
||
panel->setHeight(root->getIntValue("h", 443));
|
||
|
||
//
|
||
// Grab the visible external viewing area, default to
|
||
//
|
||
panel->setViewHeight(root->getIntValue("view-height",
|
||
768 - panel->getHeight() + 2));
|
||
|
||
//
|
||
// Grab the panel's initial offsets, default to 0, 0.
|
||
//
|
||
if (!fgHasNode("/sim/panel/x-offset"))
|
||
fgSetInt("/sim/panel/x-offset", root->getIntValue("x-offset", 0));
|
||
|
||
// conditional removed by jim wilson to allow panel xml code
|
||
// with y-offset defined to work...
|
||
if (!fgHasNode("/sim/panel/y-offset"))
|
||
fgSetInt("/sim/panel/y-offset", root->getIntValue("y-offset", 0));
|
||
|
||
//
|
||
// Assign the background texture, if any, or a bogus chequerboard.
|
||
//
|
||
string bgTexture = root->getStringValue("background");
|
||
if (bgTexture.empty())
|
||
bgTexture = "FOO";
|
||
panel->setBackground(FGTextureManager::createTexture(bgTexture.c_str()));
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << bgTexture );
|
||
|
||
//
|
||
// Get multibackground if any...
|
||
//
|
||
string mbgTexture = root->getStringValue("multibackground[0]");
|
||
if (!mbgTexture.empty()) {
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 0);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[1]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 1);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[2]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 2);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[3]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 3);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[4]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 4);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[5]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 5);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[6]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 6);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
mbgTexture = root->getStringValue("multibackground[7]");
|
||
if (mbgTexture.empty())
|
||
mbgTexture = "FOO";
|
||
panel->setMultiBackground(FGTextureManager::createTexture(mbgTexture.c_str()), 7);
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Set background texture to " << mbgTexture );
|
||
|
||
}
|
||
|
||
|
||
|
||
//
|
||
// Create each instrument.
|
||
//
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Reading panel instruments" );
|
||
const SGPropertyNode * instrument_group = root->getChild("instruments");
|
||
if (instrument_group != 0) {
|
||
int nInstruments = instrument_group->nChildren();
|
||
for (int i = 0; i < nInstruments; i++) {
|
||
const SGPropertyNode * node = instrument_group->getChild(i);
|
||
if (!strcmp(node->getName(), "instrument")) {
|
||
FGPanelInstrument * instrument = readInstrument(node);
|
||
if (instrument != 0)
|
||
panel->addInstrument(instrument);
|
||
} else {
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Skipping " << node->getName()
|
||
<< " in instruments section" );
|
||
}
|
||
}
|
||
}
|
||
SG_LOG( SG_COCKPIT, SG_INFO, "Done reading panel instruments" );
|
||
|
||
|
||
//
|
||
// Return the new panel.
|
||
//
|
||
return panel;
|
||
}
|
||
|
||
|
||
/**
|
||
* Read a panel from a property list.
|
||
*
|
||
* Each panel instrument will appear in its own, separate
|
||
* property list. The top level simply names the panel and
|
||
* places the instruments in their appropriate locations (and
|
||
* optionally resizes them if necessary).
|
||
*
|
||
* Returns 0 if the read fails for any reason.
|
||
*/
|
||
FGPanel *
|
||
fgReadPanel (istream &input)
|
||
{
|
||
SGPropertyNode root;
|
||
|
||
try {
|
||
readProperties(input, &root);
|
||
} catch (const sg_exception &e) {
|
||
guiErrorMessage("Error reading panel: ", e);
|
||
return 0;
|
||
}
|
||
return readPanel(&root);
|
||
}
|
||
|
||
|
||
/**
|
||
* Read a panel from a property list.
|
||
*
|
||
* This function opens a stream to a file, then invokes the
|
||
* main fgReadPanel() function.
|
||
*/
|
||
FGPanel *
|
||
fgReadPanel (const string &relative_path)
|
||
{
|
||
SGPath path(globals->get_fg_root());
|
||
path.append(relative_path);
|
||
SGPropertyNode root;
|
||
|
||
try {
|
||
readProperties(path.str(), &root);
|
||
} catch (const sg_exception &e) {
|
||
guiErrorMessage("Error reading panel: ", e);
|
||
return 0;
|
||
}
|
||
return readPanel(&root);
|
||
}
|
||
|
||
|
||
|
||
// end of panel_io.cxx
|
||
|
||
|
||
|