80 lines
3.3 KiB
C
80 lines
3.3 KiB
C
// dvxDialog.h — Modal dialogs for DVX GUI
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//
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// Provides pre-built modal dialog boxes (message box, file dialog) that
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// block the caller and run their own event loop via dvxUpdate() until the
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// user dismisses them. Modal dialogs set ctx->modalWindow to prevent input
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// from reaching other windows during the dialog's lifetime.
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//
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// The flag encoding uses separate bit fields for button configuration
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// (low nibble) and icon type (high nibble) so they can be OR'd together
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// in a single int32_t argument, matching the Win16 MessageBox() convention.
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#ifndef DVX_DIALOG_H
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#define DVX_DIALOG_H
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#include "dvxApp.h"
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// ============================================================
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// Message box button flags (low nibble)
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// ============================================================
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#define MB_OK 0x0000
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#define MB_OKCANCEL 0x0001
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#define MB_YESNO 0x0002
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#define MB_YESNOCANCEL 0x0003
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#define MB_RETRYCANCEL 0x0004
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// ============================================================
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// Message box icon flags (high nibble, OR with button flags)
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// ============================================================
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#define MB_ICONINFO 0x0010
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#define MB_ICONWARNING 0x0020
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#define MB_ICONERROR 0x0030
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#define MB_ICONQUESTION 0x0040
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// ============================================================
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// Message box return values
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// ============================================================
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#define ID_OK 1
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#define ID_CANCEL 2
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#define ID_YES 3
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#define ID_NO 4
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#define ID_RETRY 5
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// Display a modal message box with the specified button and icon combination.
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// Blocks the caller by running dvxUpdate() in a loop until a button is
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// pressed or the dialog is closed. Returns the ID_xxx value of the button
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// that was pressed. The dialog window is automatically destroyed on return.
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int32_t dvxMessageBox(AppContextT *ctx, const char *title, const char *message, int32_t flags);
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// ============================================================
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// File dialog flags
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// ============================================================
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#define FD_OPEN 0x0000 // Open file (default)
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#define FD_SAVE 0x0001 // Save file
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// ============================================================
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// File dialog filter
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// ============================================================
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//
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// Filters are displayed in a dropdown at the bottom of the file dialog.
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// Pattern matching is case-insensitive and supports only single glob
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// patterns (no semicolon-separated lists). This keeps the matching code
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// trivial for a DOS filesystem where filenames are short and simple.
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typedef struct {
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const char *label; // e.g. "Text Files (*.txt)"
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const char *pattern; // e.g. "*.txt" (case-insensitive, single pattern)
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} FileFilterT;
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// Display a modal file open/save dialog. The dialog shows a directory
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// listing with navigation (parent directory, drive letters on DOS), a
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// filename text input, and an optional filter dropdown. Blocks the caller
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// via dvxUpdate() loop. Returns true if the user selected a file (path
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// written to outPath), false if cancelled or closed. initialDir may be
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// NULL to start in the current working directory.
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bool dvxFileDialog(AppContextT *ctx, const char *title, int32_t flags, const char *initialDir, const FileFilterT *filters, int32_t filterCount, char *outPath, int32_t outPathSize);
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#endif // DVX_DIALOG_H
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