333 lines
18 KiB
C
333 lines
18 KiB
C
// widgetInternal.h — Shared internal header for widget implementation files
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#ifndef WIDGET_INTERNAL_H
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#define WIDGET_INTERNAL_H
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#include "../dvxWidget.h"
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#include "../dvxApp.h"
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#include "../dvxDraw.h"
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#include "../dvxWm.h"
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#include "../dvxVideo.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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// ============================================================
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// Widget class vtable
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// ============================================================
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#define WCLASS_FOCUSABLE 0x0001
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#define WCLASS_BOX_CONTAINER 0x0002
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#define WCLASS_HORIZ_CONTAINER 0x0004
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#define WCLASS_PAINTS_CHILDREN 0x0008
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#define WCLASS_NO_HIT_RECURSE 0x0010
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typedef struct WidgetClassT {
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uint32_t flags;
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void (*paint)(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void (*paintOverlay)(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void (*calcMinSize)(WidgetT *w, const BitmapFontT *font);
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void (*layout)(WidgetT *w, const BitmapFontT *font);
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void (*onMouse)(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void (*onKey)(WidgetT *w, int32_t key, int32_t mod);
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void (*destroy)(WidgetT *w);
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const char *(*getText)(const WidgetT *w);
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void (*setText)(WidgetT *w, const char *text);
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} WidgetClassT;
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extern const WidgetClassT *widgetClassTable[];
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// ============================================================
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// Constants
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// ============================================================
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// Modifier flags (BIOS INT 16h shift state bits)
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#define KEY_MOD_SHIFT 0x03
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#define KEY_MOD_CTRL 0x04
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#define KEY_MOD_ALT 0x08
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#define DEFAULT_SPACING 4
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#define DEFAULT_PADDING 4
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#define SEPARATOR_THICKNESS 2
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#define BUTTON_PAD_H 8
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#define BUTTON_PAD_V 4
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#define CHECKBOX_BOX_SIZE 12
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#define CHECKBOX_GAP 4
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#define FRAME_BEVEL_BORDER 2
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#define FRAME_FLAT_BORDER 1
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#define TEXT_INPUT_PAD 3
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#define DROPDOWN_BTN_WIDTH 16
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#define DROPDOWN_MAX_VISIBLE 8
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#define SLIDER_TRACK_H 4
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#define SLIDER_THUMB_W 11
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#define TAB_PAD_H 8
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#define TAB_PAD_V 4
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#define TAB_BORDER 2
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#define LISTBOX_BORDER 2
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#define LISTVIEW_BORDER 2
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#define TREE_INDENT 16
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#define TREE_EXPAND_SIZE 9
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#define TREE_ICON_GAP 4
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#define TREE_BORDER 2
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#define TREE_SB_W 14
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#define TREE_MIN_ROWS 4
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#define SB_MIN_THUMB 14
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#define SPLITTER_BAR_W 5
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#define SPLITTER_MIN_PANE 20
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// ============================================================
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// Inline helpers
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// ============================================================
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static inline int32_t clampInt(int32_t val, int32_t lo, int32_t hi) {
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if (val < lo) { return lo; }
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if (val > hi) { return hi; }
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return val;
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}
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// Classic Windows 3.1 embossed (etched) text for disabled widgets:
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// Draw text at +1,+1 in highlight, then at 0,0 in shadow.
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static inline void drawTextEmbossed(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, const char *text, const ColorSchemeT *colors) {
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drawText(d, ops, font, x + 1, y + 1, text, colors->windowHighlight, 0, false);
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drawText(d, ops, font, x, y, text, colors->windowShadow, 0, false);
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}
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static inline void drawTextAccelEmbossed(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, const char *text, const ColorSchemeT *colors) {
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drawTextAccel(d, ops, font, x + 1, y + 1, text, colors->windowHighlight, 0, false);
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drawTextAccel(d, ops, font, x, y, text, colors->windowShadow, 0, false);
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}
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// ============================================================
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// Shared state (defined in widgetCore.c)
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// ============================================================
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extern bool sDebugLayout;
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extern WidgetT *sClosedPopup;
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extern WidgetT *sFocusedWidget;
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extern WidgetT *sKeyPressedBtn;
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extern WidgetT *sOpenPopup;
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extern WidgetT *sPressedButton;
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extern WidgetT *sDragSlider;
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extern WidgetT *sDrawingCanvas;
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extern WidgetT *sDragTextSelect;
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extern int32_t sDragOffset;
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extern WidgetT *sResizeListView;
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extern int32_t sResizeCol;
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extern int32_t sResizeStartX;
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extern int32_t sResizeOrigW;
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extern WidgetT *sDragSplitter;
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extern int32_t sDragSplitStart;
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extern WidgetT *sDragReorder;
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// ============================================================
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// Core functions (widgetCore.c)
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// ============================================================
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void widgetAddChild(WidgetT *parent, WidgetT *child);
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WidgetT *widgetAlloc(WidgetT *parent, WidgetTypeE type);
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void widgetClearFocus(WidgetT *root);
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int32_t widgetCountVisibleChildren(const WidgetT *w);
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void widgetDestroyChildren(WidgetT *w);
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void widgetDropdownPopupRect(WidgetT *w, const BitmapFontT *font, int32_t contentH, int32_t *popX, int32_t *popY, int32_t *popW, int32_t *popH);
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WidgetT *widgetFindByAccel(WidgetT *root, char key);
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WidgetT *widgetFindNextFocusable(WidgetT *root, WidgetT *after);
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WidgetT *widgetFindPrevFocusable(WidgetT *root, WidgetT *before);
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int32_t widgetFrameBorderWidth(const WidgetT *w);
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WidgetT *widgetHitTest(WidgetT *w, int32_t x, int32_t y);
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bool widgetIsFocusable(WidgetTypeE type);
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bool widgetIsBoxContainer(WidgetTypeE type);
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bool widgetIsHorizContainer(WidgetTypeE type);
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void widgetRemoveChild(WidgetT *parent, WidgetT *child);
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void widgetScrollbarThumb(int32_t trackLen, int32_t totalSize, int32_t visibleSize, int32_t scrollPos, int32_t *thumbPos, int32_t *thumbSize);
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// ============================================================
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// Layout functions (widgetLayout.c)
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// ============================================================
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void widgetCalcMinSizeBox(WidgetT *w, const BitmapFontT *font);
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void widgetCalcMinSizeTree(WidgetT *w, const BitmapFontT *font);
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void widgetLayoutBox(WidgetT *w, const BitmapFontT *font);
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void widgetLayoutChildren(WidgetT *w, const BitmapFontT *font);
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// ============================================================
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// Event functions (widgetEvent.c)
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// ============================================================
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void widgetManageScrollbars(WindowT *win, AppContextT *ctx);
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void widgetOnKey(WindowT *win, int32_t key, int32_t mod);
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void widgetOnMouse(WindowT *win, int32_t x, int32_t y, int32_t buttons);
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void widgetOnPaint(WindowT *win, RectT *dirtyArea);
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void widgetOnResize(WindowT *win, int32_t newW, int32_t newH);
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void widgetOnScroll(WindowT *win, ScrollbarOrientE orient, int32_t value);
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// ============================================================
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// Paint/ops functions (widgetOps.c)
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// ============================================================
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void widgetPaintOne(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetPaintOverlays(WidgetT *root, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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// ============================================================
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// Per-widget paint functions
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// ============================================================
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void widgetAnsiTermPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetButtonPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetImageButtonPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetCanvasPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetCheckboxPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetComboBoxPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetComboBoxPaintPopup(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetDropdownPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetDropdownPaintPopup(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetFramePaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetImagePaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetLabelPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetListBoxPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetListViewPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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bool widgetListViewColBorderHit(const WidgetT *w, int32_t vx, int32_t vy);
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void widgetProgressBarPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetRadioPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetSeparatorPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetScrollPanePaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetSplitterPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetSliderPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetSpinnerPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetStatusBarPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetTabControlPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetTextAreaPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetTextInputPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetToolbarPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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void widgetTreeViewPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors);
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// ============================================================
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// Per-widget calcMinSize functions
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// ============================================================
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void widgetAnsiTermCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetButtonCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetImageButtonCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetCanvasCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetCheckboxCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetComboBoxCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetDropdownCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetImageCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetLabelCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetListBoxCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetListViewCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetProgressBarCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetRadioCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetSeparatorCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetScrollPaneCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetSplitterCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetSliderCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetSpinnerCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetSpacerCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetTabControlCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetTextAreaCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetTextInputCalcMinSize(WidgetT *w, const BitmapFontT *font);
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void widgetTreeViewCalcMinSize(WidgetT *w, const BitmapFontT *font);
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// ============================================================
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// Per-widget layout functions (for special containers)
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// ============================================================
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void widgetScrollPaneLayout(WidgetT *w, const BitmapFontT *font);
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void widgetSplitterLayout(WidgetT *w, const BitmapFontT *font);
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void widgetTabControlLayout(WidgetT *w, const BitmapFontT *font);
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void widgetTreeViewLayout(WidgetT *w, const BitmapFontT *font);
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// ============================================================
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// Per-widget getText/setText functions
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// ============================================================
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const char *widgetButtonGetText(const WidgetT *w);
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void widgetButtonSetText(WidgetT *w, const char *text);
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const char *widgetCheckboxGetText(const WidgetT *w);
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void widgetCheckboxSetText(WidgetT *w, const char *text);
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const char *widgetComboBoxGetText(const WidgetT *w);
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void widgetComboBoxSetText(WidgetT *w, const char *text);
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const char *widgetDropdownGetText(const WidgetT *w);
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const char *widgetLabelGetText(const WidgetT *w);
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void widgetLabelSetText(WidgetT *w, const char *text);
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const char *widgetRadioGetText(const WidgetT *w);
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void widgetRadioSetText(WidgetT *w, const char *text);
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const char *widgetTextAreaGetText(const WidgetT *w);
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void widgetTextAreaSetText(WidgetT *w, const char *text);
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const char *widgetTextInputGetText(const WidgetT *w);
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void widgetTextInputSetText(WidgetT *w, const char *text);
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const char *widgetTreeItemGetText(const WidgetT *w);
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void widgetTreeItemSetText(WidgetT *w, const char *text);
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// ============================================================
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// Per-widget destroy functions
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// ============================================================
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void widgetAnsiTermDestroy(WidgetT *w);
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void widgetCanvasDestroy(WidgetT *w);
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void widgetComboBoxDestroy(WidgetT *w);
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void widgetImageButtonDestroy(WidgetT *w);
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void widgetImageDestroy(WidgetT *w);
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void widgetListBoxDestroy(WidgetT *w);
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void widgetListViewDestroy(WidgetT *w);
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void widgetTextAreaDestroy(WidgetT *w);
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void widgetTextInputDestroy(WidgetT *w);
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// ============================================================
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// Per-widget mouse/key functions
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// ============================================================
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void clearOtherSelections(WidgetT *except);
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void clipboardCopy(const char *text, int32_t len);
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const char *clipboardGet(int32_t *outLen);
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bool isWordChar(char c);
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int32_t multiClickDetect(int32_t vx, int32_t vy);
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void widgetAnsiTermOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetAnsiTermOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetButtonOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetButtonOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetCanvasOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetCheckboxOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetCheckboxOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetComboBoxOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetComboBoxOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetDropdownOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetDropdownOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetImageButtonOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetImageButtonOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetImageOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetListBoxOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetListBoxOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetListViewOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetListViewOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetRadioOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetRadioOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetScrollPaneOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetScrollPaneOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetSplitterClampPos(WidgetT *w, int32_t *pos);
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void widgetSplitterOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetSliderOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetSliderOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetSpinnerOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetSpinnerOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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const char *widgetSpinnerGetText(const WidgetT *w);
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void widgetSpinnerSetText(WidgetT *w, const char *text);
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void widgetTabControlOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetTabControlOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetTextAreaOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetTextAreaOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetTextDragUpdate(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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void widgetTextEditOnKey(WidgetT *w, int32_t key, int32_t mod, char *buf, int32_t bufSize, int32_t *pLen, int32_t *pCursor, int32_t *pScrollOff, int32_t *pSelStart, int32_t *pSelEnd, char *undoBuf, int32_t *pUndoLen, int32_t *pUndoCursor);
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void widgetTextInputOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetTextInputOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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int32_t wordEnd(const char *buf, int32_t len, int32_t pos);
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int32_t wordStart(const char *buf, int32_t pos);
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void widgetTreeViewOnKey(WidgetT *w, int32_t key, int32_t mod);
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void widgetTreeViewOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy);
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// Drag-reorder helpers (dispatch to ListBox/ListView/TreeView)
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void widgetReorderUpdate(WidgetT *w, WidgetT *root, int32_t x, int32_t y);
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void widgetReorderDrop(WidgetT *w);
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WidgetT *widgetTreeViewNextVisible(WidgetT *item, WidgetT *treeView);
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#endif // WIDGET_INTERNAL_H
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