527 lines
13 KiB
C
527 lines
13 KiB
C
/******************************************************************************
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*
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*
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* File: Starter.c
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*
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*****************************************************************************/
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#include <PalmOS.h>
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#include "StarterRsc.h"
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#include "FontBucket.h"
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/***********************************************************************
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*
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* Entry Points
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*
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***********************************************************************/
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/***********************************************************************
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*
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* Internal Structures
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*
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***********************************************************************/
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typedef struct
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{
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FmFontID fmListFontID;
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} StarterPreferenceType;
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typedef struct
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{
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UInt8 replaceme;
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} StarterAppInfoType;
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typedef StarterAppInfoType* StarterAppInfoPtr;
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/***********************************************************************
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*
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* Global variables
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*
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***********************************************************************/
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//static Boolean HideSecretRecords;
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static FmType FontBucketParams;
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static FontID ListFont;
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/***********************************************************************
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*
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* Internal Constants
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*
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***********************************************************************/
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#define appFileCreator 'STRT' // register your own at http://www.palmos.com/dev/creatorid/
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#define appVersionNum 0x01
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#define appPrefID 0x00
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#define appPrefVersionNum 0x01
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// Define the minimum OS version we support (2.0 for now).
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#define ourMinVersion sysMakeROMVersion(2,0,0,sysROMStageRelease,0)
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#define kPalmOS10Version sysMakeROMVersion(1,0,0,sysROMStageRelease,0)
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/***********************************************************************
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*
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* Internal Functions
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*
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***********************************************************************/
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/***********************************************************************
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*
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* FUNCTION: RomVersionCompatible
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*
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* DESCRIPTION: This routine checks that a ROM version is meet your
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* minimum requirement.
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*
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* PARAMETERS: requiredVersion - minimum rom version required
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* (see sysFtrNumROMVersion in SystemMgr.h
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* for format)
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* launchFlags - flags that indicate if the application
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* UI is initialized.
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*
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* RETURNED: error code or zero if rom is compatible
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static Err RomVersionCompatible(UInt32 requiredVersion, UInt16 launchFlags)
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{
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UInt32 romVersion;
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// See if we're on in minimum required version of the ROM or later.
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FtrGet(sysFtrCreator, sysFtrNumROMVersion, &romVersion);
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if (romVersion < requiredVersion)
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{
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if ((launchFlags & (sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp)) ==
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(sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp))
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{
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FrmAlert (RomIncompatibleAlert);
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// Palm OS 1.0 will continuously relaunch this app unless we switch to
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// another safe one.
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if (romVersion <= kPalmOS10Version)
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{
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AppLaunchWithCommand(sysFileCDefaultApp, sysAppLaunchCmdNormalLaunch, NULL);
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}
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}
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return sysErrRomIncompatible;
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}
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return errNone;
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}
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/***********************************************************************
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*
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* FUNCTION: GetObjectPtr
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*
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* DESCRIPTION: This routine returns a pointer to an object in the current
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* form.
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*
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* PARAMETERS: formId - id of the form to display
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*
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* RETURNED: void *
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static void * GetObjectPtr(UInt16 objectID)
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{
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FormPtr frmP;
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frmP = FrmGetActiveForm();
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return FrmGetObjectPtr(frmP, FrmGetObjectIndex(frmP, objectID));
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}
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/***********************************************************************
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*
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* FUNCTION: MainFormInit
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*
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* DESCRIPTION: This routine initializes the MainForm form.
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*
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* PARAMETERS: frm - pointer to the MainForm form.
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*
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* RETURNED: nothing
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static void MainFormInit(FormPtr frmP)
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{
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RectangleType winRect;
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Coord gapOnTextBottom;
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RectangleType objectRect;
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RectangleType originalFormRect;
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RectangleType resizedFormRect;
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FieldPtr textFieldPtr;
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FrmGetFormBounds(frmP, &originalFormRect);
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// INCREASE THE SIZE OF THE FORM TO MATCH SCREEN SIZE
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winRect.topLeft.x = 0;
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winRect.topLeft.y = 0;
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// get the current screen size
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WinGetDisplayExtent(&winRect.extent.x, &winRect.extent.y);
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// change the size of the form to match the screen size
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WinSetWindowBounds(FrmGetWindowHandle(frmP), &winRect);
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FrmGetFormBounds(frmP, &resizedFormRect);
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// REPOSITION CONTROLS
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// text input field (grow both x and y direction)
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FrmGetObjectBounds(frmP, FrmGetObjectIndex(frmP, MainInputField), &objectRect);
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gapOnTextBottom = originalFormRect.extent.y -
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(objectRect.topLeft.y + objectRect.extent.y);
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objectRect.extent.x = resizedFormRect.extent.x;
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objectRect.extent.y = resizedFormRect.extent.y - gapOnTextBottom - objectRect.topLeft.y;
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FrmSetObjectBounds(frmP, FrmGetObjectIndex(frmP, MainInputField), &objectRect);
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textFieldPtr = (FieldPtr) FrmGetObjectPtr(frmP,
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FrmGetObjectIndex(frmP, MainInputField));
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FldSetFont (textFieldPtr, ListFont);
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//FldDrawField (textFieldPtr);
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FrmSetFocus(frmP, FrmGetObjectIndex(frmP, MainInputField));
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}
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/***********************************************************************
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*
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* FUNCTION: MainFormDoCommand
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*
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* DESCRIPTION: This routine performs the menu command specified.
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*
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* PARAMETERS: command - menu item id
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*
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* RETURNED: nothing
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static Boolean MainFormDoCommand(UInt16 command)
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{
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Boolean handled = false;
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FormPtr frmP;
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FontID previousFontID;
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FmFontID fmFontID;
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Boolean fontChanged;
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FieldPtr textFieldPtr;
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switch (command)
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{
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case MainOptionsAboutStarterApp:
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MenuEraseStatus(0); // Clear the menu status from the display.
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frmP = FrmInitForm (AboutForm);
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FrmDoDialog (frmP); // Display the About Box.
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FrmDeleteForm (frmP);
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handled = true;
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break;
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case MainOptionsFont:
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{
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frmP = FrmGetActiveForm();
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FmGetFMFontID(&FontBucketParams, ListFont, &fmFontID);
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fontChanged = FmSelectFont(&FontBucketParams, &fmFontID);
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if (fontChanged)
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{
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previousFontID = ListFont;
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FmUseFont(&FontBucketParams, fmFontID, &ListFont);
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textFieldPtr = (FieldPtr) FrmGetObjectPtr(frmP,
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FrmGetObjectIndex(frmP, MainInputField));
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FldSetFont (textFieldPtr, ListFont);
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FldDrawField (textFieldPtr);
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FmFreeFont(&FontBucketParams, previousFontID);
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}
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handled = true;
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}
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break;
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}
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return handled;
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}
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/***********************************************************************
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*
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* FUNCTION: MainFormHandleEvent
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*
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* DESCRIPTION: This routine is the event handler for the
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* "MainForm" of this application.
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*
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* PARAMETERS: eventP - a pointer to an EventType structure
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*
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* RETURNED: true if the event has handle and should not be passed
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* to a higher level handler.
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static Boolean MainFormHandleEvent(EventPtr eventP)
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{
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Boolean handled = false;
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FormPtr frmP;
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switch (eventP->eType)
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{
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case keyDownEvent:
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break;
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case menuEvent:
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return MainFormDoCommand(eventP->data.menu.itemID);
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case frmOpenEvent:
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frmP = FrmGetActiveForm();
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MainFormInit(frmP);
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FrmDrawForm ( frmP);
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handled = true;
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break;
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default:
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break;
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}
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return handled;
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}
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/***********************************************************************
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*
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* FUNCTION: AppHandleEvent
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*
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* DESCRIPTION: This routine loads form resources and set the event
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* handler for the form loaded.
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*
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* PARAMETERS: event - a pointer to an EventType structure
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*
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* RETURNED: true if the event has handle and should not be passed
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* to a higher level handler.
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static Boolean AppHandleEvent(EventPtr eventP)
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{
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UInt16 formId;
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FormPtr frmP;
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if (eventP->eType == frmLoadEvent)
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{
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// Load the form resource.
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formId = eventP->data.frmLoad.formID;
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frmP = FrmInitForm(formId);
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FrmSetActiveForm(frmP);
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// Set the event handler for the form. The handler of the currently
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// active form is called by FrmHandleEvent each time is receives an
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// event.
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switch (formId)
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{
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case MainForm:
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FrmSetEventHandler(frmP, MainFormHandleEvent);
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break;
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default:
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// ErrFatalDisplay("Invalid Form Load Event");
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break;
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}
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return true;
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}
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return false;
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}
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/***********************************************************************
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*
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* FUNCTION: AppEventLoop
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*
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* DESCRIPTION: This routine is the event loop for the application.
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*
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* PARAMETERS: nothing
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*
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* RETURNED: nothing
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static void AppEventLoop(void)
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{
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UInt16 error;
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EventType event;
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do
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{
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EvtGetEvent(&event, evtWaitForever);
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if (! SysHandleEvent(&event))
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if (! MenuHandleEvent(0, &event, &error))
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if (! AppHandleEvent(&event))
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FrmDispatchEvent(&event);
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} while (event.eType != appStopEvent);
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}
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/***********************************************************************
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*
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* FUNCTION: AppStart
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*
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* DESCRIPTION: Get the current application's preferences.
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*
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* PARAMETERS: nothing
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*
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* RETURNED: Err value 0 if nothing went wrong
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static Err AppStart(void)
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{
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StarterPreferenceType prefs;
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UInt16 prefsSize;
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FmFontID fmFontID;
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FmInit(&FontBucketParams, kNoFontRangeSpecified, kNoFontRangeSpecified, false);
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// Read the saved preferences / saved-state information.
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prefsSize = sizeof(StarterPreferenceType);
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if (PrefGetAppPreferences(appFileCreator,
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appPrefID, &prefs, &prefsSize, true) ==
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noPreferenceFound)
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{
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FmGetFMFontID(&FontBucketParams, stdFont, &fmFontID);
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FmUseFont(&FontBucketParams, fmFontID, &ListFont);
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}
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else
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{
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FmUseFont(&FontBucketParams, prefs.fmListFontID, &ListFont);
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}
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return errNone;
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}
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/***********************************************************************
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*
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* FUNCTION: AppStop
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*
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* DESCRIPTION: Save the current state of the application.
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*
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* PARAMETERS: nothing
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*
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* RETURNED: nothing
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static void AppStop(void)
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{
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StarterPreferenceType prefs;
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FmFontID fmFontID;
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FmGetFMFontID(&FontBucketParams, ListFont, &fmFontID);
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prefs.fmListFontID = fmFontID;
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// Write the saved preferences / saved-state information. This data
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// will saved during a HotSync backup.
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PrefSetAppPreferences (appFileCreator, appPrefID, appPrefVersionNum,
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&prefs, sizeof (prefs), true);
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// Close all the open forms.
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FrmCloseAllForms ();
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FmFreeFont (&FontBucketParams, ListFont);
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FmClose(&FontBucketParams);
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}
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/***********************************************************************
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*
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* FUNCTION: StarterPalmMain
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*
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* DESCRIPTION: This is the main entry point for the application.
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*
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* PARAMETERS: cmd - word value specifying the launch code.
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* cmdPB - pointer to a structure that is associated with the launch code.
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* launchFlags - word value providing extra information about the launch.
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*
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* RETURNED: Result of launch
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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static UInt32 StarterPalmMain(UInt16 cmd, MemPtr /*cmdPBP*/, UInt16 launchFlags)
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{
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Err error;
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error = RomVersionCompatible (ourMinVersion, launchFlags);
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if (error) return (error);
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switch (cmd)
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{
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case sysAppLaunchCmdNormalLaunch:
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error = AppStart();
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if (error)
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return error;
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FrmGotoForm(MainForm);
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AppEventLoop();
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AppStop();
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break;
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default:
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break;
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}
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return errNone;
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}
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/***********************************************************************
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*
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* FUNCTION: PilotMain
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*
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* DESCRIPTION: This is the main entry point for the application.
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*
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* PARAMETERS: cmd - word value specifying the launch code.
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* cmdPB - pointer to a structure that is associated with the launch code.
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* launchFlags - word value providing extra information about the launch.
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* RETURNED: Result of launch
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*
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* REVISION HISTORY:
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*
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*
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***********************************************************************/
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UInt32 PilotMain( UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags)
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{
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return StarterPalmMain(cmd, cmdPBP, launchFlags);
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}
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