485 lines
13 KiB
C
485 lines
13 KiB
C
// demo.c — DV/X GUI demonstration application
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#include "dvxApp.h"
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#include "dvxWidget.h"
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#include <stdio.h>
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#include <string.h>
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// ============================================================
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// Menu command IDs
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// ============================================================
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#define CMD_FILE_NEW 100
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#define CMD_FILE_OPEN 101
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#define CMD_FILE_SAVE 102
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#define CMD_FILE_EXIT 103
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#define CMD_HELP_ABOUT 200
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// ============================================================
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// Prototypes
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// ============================================================
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static void onCloseCb(WindowT *win);
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static void onMenuCb(WindowT *win, int32_t menuId);
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static void onOkClick(WidgetT *w);
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static void onPaintColor(WindowT *win, RectT *dirtyArea);
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static void onPaintPattern(WindowT *win, RectT *dirtyArea);
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static void onPaintText(WindowT *win, RectT *dirtyArea);
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static void setupWidgetDemo2(AppContextT *ctx);
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static void setupWindows(AppContextT *ctx);
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// ============================================================
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// onCloseCb
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// ============================================================
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static void onCloseCb(WindowT *win) {
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AppContextT *ctx = (AppContextT *)win->userData;
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if (ctx) {
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dvxDestroyWindow(ctx, win);
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}
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}
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// ============================================================
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// onMenuCb
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// ============================================================
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static void onMenuCb(WindowT *win, int32_t menuId) {
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AppContextT *ctx = (AppContextT *)win->userData;
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switch (menuId) {
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case CMD_FILE_EXIT:
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if (ctx) {
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dvxQuit(ctx);
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}
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break;
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case CMD_HELP_ABOUT:
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// Could create an about dialog window here
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break;
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}
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}
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// ============================================================
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// onOkClick
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// ============================================================
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static void onOkClick(WidgetT *w) {
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// Find the status label and update it
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WidgetT *root = w;
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while (root->parent) {
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root = root->parent;
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}
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WidgetT *status = wgtFind(root, "status");
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if (status) {
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wgtSetText(status, "Button clicked!");
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wgtInvalidate(status);
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}
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}
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// ============================================================
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// onPaintColor
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// ============================================================
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static void onPaintColor(WindowT *win, RectT *dirtyArea) {
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(void)dirtyArea;
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AppContextT *ctx = (AppContextT *)win->userData;
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if (!win->contentBuf || !ctx) {
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return;
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}
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const DisplayT *d = dvxGetDisplay(ctx);
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const BlitOpsT *ops = dvxGetBlitOps(ctx);
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for (int32_t y = 0; y < win->contentH; y++) {
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uint8_t r = (uint8_t)((y * 255) / (win->contentH > 1 ? win->contentH - 1 : 1));
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uint8_t g = (uint8_t)(100);
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uint8_t b = (uint8_t)(200 - (y * 150) / (win->contentH > 1 ? win->contentH - 1 : 1));
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uint32_t color = packColor(d, r, g, b);
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uint8_t *row = win->contentBuf + y * win->contentPitch;
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ops->spanFill(row, color, win->contentW);
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}
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}
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// ============================================================
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// onPaintPattern
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// ============================================================
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static void onPaintPattern(WindowT *win, RectT *dirtyArea) {
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(void)dirtyArea;
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AppContextT *ctx = (AppContextT *)win->userData;
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if (!win->contentBuf || !ctx) {
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return;
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}
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const DisplayT *d = dvxGetDisplay(ctx);
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int32_t bpp = d->format.bytesPerPixel;
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int32_t sq = 16; // square size
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uint32_t c1 = packColor(d, 255, 255, 255);
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uint32_t c2 = packColor(d, 0, 0, 180);
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for (int32_t y = 0; y < win->contentH; y++) {
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for (int32_t x = 0; x < win->contentW; x++) {
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uint32_t color = ((x / sq) + (y / sq)) & 1 ? c2 : c1;
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uint8_t *px = win->contentBuf + y * win->contentPitch + x * bpp;
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if (bpp == 1) {
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*px = (uint8_t)color;
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} else if (bpp == 2) {
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*(uint16_t *)px = (uint16_t)color;
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} else {
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*(uint32_t *)px = color;
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}
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}
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}
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}
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// ============================================================
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// onPaintText
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// ============================================================
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static void onPaintText(WindowT *win, RectT *dirtyArea) {
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(void)dirtyArea;
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AppContextT *ctx = (AppContextT *)win->userData;
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if (!win->contentBuf || !ctx) {
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return;
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}
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const DisplayT *d = dvxGetDisplay(ctx);
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const BlitOpsT *ops = dvxGetBlitOps(ctx);
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const BitmapFontT *font = dvxGetFont(ctx);
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int32_t bpp = d->format.bytesPerPixel;
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// Fill white background
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uint32_t bg = packColor(d, 255, 255, 255);
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uint32_t fg = packColor(d, 0, 0, 0);
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for (int32_t y = 0; y < win->contentH; y++) {
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ops->spanFill(win->contentBuf + y * win->contentPitch, bg, win->contentW);
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}
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// Draw text lines directly into the content buffer
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static const char *lines[] = {
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"DV/X GUI Compositor",
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"",
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"A DESQview/X-style windowed GUI",
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"compositor for DOS, targeting",
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"DJGPP/DPMI.",
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"",
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"Features:",
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" - VESA VBE 2.0+ LFB",
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" - Dirty-rect compositing",
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" - Beveled Motif-style chrome",
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" - Draggable windows",
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" - Resizable windows",
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" - Menu bars",
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" - Scrollbars",
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" - Widget system",
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"",
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"Press ESC to exit.",
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NULL
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};
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int32_t textY = 4;
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for (int32_t i = 0; lines[i] != NULL; i++) {
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const char *line = lines[i];
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int32_t textX = 4;
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for (int32_t j = 0; line[j] != '\0'; j++) {
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int32_t idx = (uint8_t)line[j] - font->firstChar;
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if (idx < 0 || idx >= font->numChars) {
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textX += font->charWidth;
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continue;
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}
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const uint8_t *glyph = font->glyphData + idx * font->charHeight;
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for (int32_t row = 0; row < font->charHeight; row++) {
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int32_t py = textY + row;
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if (py >= win->contentH) {
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break;
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}
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uint8_t bits = glyph[row];
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for (int32_t col = 0; col < font->charWidth; col++) {
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int32_t px = textX + col;
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if (px >= win->contentW) {
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break;
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}
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if (bits & (0x80 >> col)) {
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uint8_t *dst = win->contentBuf + py * win->contentPitch + px * bpp;
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if (bpp == 1) {
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*dst = (uint8_t)fg;
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} else if (bpp == 2) {
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*(uint16_t *)dst = (uint16_t)fg;
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} else {
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*(uint32_t *)dst = fg;
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}
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}
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}
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}
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textX += font->charWidth;
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}
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textY += font->charHeight + 2;
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}
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}
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// ============================================================
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// setupWidgetDemo2
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// ============================================================
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static const char *colorItems[] = {"Red", "Green", "Blue", "Yellow", "Cyan", "Magenta"};
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static const char *sizeItems[] = {"Small", "Medium", "Large", "Extra Large"};
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static void setupWidgetDemo2(AppContextT *ctx) {
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WindowT *win = dvxCreateWindow(ctx, "Advanced Widgets", 380, 50, 320, 400, true);
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if (!win) {
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return;
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}
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win->userData = ctx;
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win->onClose = onCloseCb;
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WidgetT *root = wgtInitWindow(ctx, win);
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// TabControl at top
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WidgetT *tabs = wgtTabControl(root);
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// --- Tab 1: Controls ---
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WidgetT *page1 = wgtTabPage(tabs, "Controls");
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WidgetT *ddRow = wgtHBox(page1);
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wgtLabel(ddRow, "Color:");
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WidgetT *dd = wgtDropdown(ddRow);
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wgtDropdownSetItems(dd, colorItems, 6);
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wgtDropdownSetSelected(dd, 0);
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WidgetT *cbRow = wgtHBox(page1);
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wgtLabel(cbRow, "Size:");
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WidgetT *cb = wgtComboBox(cbRow, 32);
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wgtComboBoxSetItems(cb, sizeItems, 4);
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wgtComboBoxSetSelected(cb, 1);
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wgtHSeparator(page1);
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wgtLabel(page1, "Progress:");
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WidgetT *pb = wgtProgressBar(page1);
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wgtProgressBarSetValue(pb, 65);
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wgtLabel(page1, "Volume:");
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wgtSlider(page1, 0, 100);
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// --- Tab 2: Tree ---
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WidgetT *page2 = wgtTabPage(tabs, "Tree");
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WidgetT *tree = wgtTreeView(page2);
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WidgetT *docs = wgtTreeItem(tree, "Documents");
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wgtTreeItemSetExpanded(docs, true);
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wgtTreeItem(docs, "README.md");
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wgtTreeItem(docs, "DESIGN.md");
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WidgetT *src = wgtTreeItem(docs, "src");
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wgtTreeItemSetExpanded(src, true);
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wgtTreeItem(src, "main.c");
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wgtTreeItem(src, "utils.c");
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wgtTreeItem(src, "render.c");
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WidgetT *images = wgtTreeItem(tree, "Images");
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wgtTreeItem(images, "logo.png");
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wgtTreeItem(images, "icon.bmp");
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WidgetT *config = wgtTreeItem(tree, "Config");
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wgtTreeItem(config, "settings.ini");
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wgtTreeItem(config, "palette.dat");
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// --- Tab 3: Toolbar ---
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WidgetT *page3 = wgtTabPage(tabs, "Toolbar");
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WidgetT *tb = wgtToolbar(page3);
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wgtButton(tb, "New");
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wgtButton(tb, "Open");
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wgtButton(tb, "Save");
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wgtLabel(page3, "Toolbar with buttons above.");
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// Status bar at bottom (outside tabs)
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WidgetT *sb = wgtStatusBar(root);
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WidgetT *sbLabel = wgtLabel(sb, "Ready");
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sbLabel->weight = 100;
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wgtLabel(sb, "Line 1, Col 1");
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wgtInvalidate(root);
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}
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// ============================================================
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// setupWindows
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// ============================================================
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static void setupWindows(AppContextT *ctx) {
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// Window 1: Text information window with menu bar
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WindowT *win1 = dvxCreateWindow(ctx, "DV/X Information", 50, 40, 340, 350, true);
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if (win1) {
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win1->userData = ctx;
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win1->onPaint = onPaintText;
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win1->onClose = onCloseCb;
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win1->onMenu = onMenuCb;
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MenuBarT *bar = wmAddMenuBar(win1);
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if (bar) {
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MenuT *fileMenu = wmAddMenu(bar, "File");
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if (fileMenu) {
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wmAddMenuItem(fileMenu, "New", CMD_FILE_NEW);
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wmAddMenuItem(fileMenu, "Open...", CMD_FILE_OPEN);
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wmAddMenuItem(fileMenu, "Save", CMD_FILE_SAVE);
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wmAddMenuSeparator(fileMenu);
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wmAddMenuItem(fileMenu, "Exit", CMD_FILE_EXIT);
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}
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MenuT *helpMenu = wmAddMenu(bar, "Help");
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if (helpMenu) {
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wmAddMenuItem(helpMenu, "About...", CMD_HELP_ABOUT);
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}
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}
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wmUpdateContentRect(win1);
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wmReallocContentBuf(win1, &ctx->display);
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// Paint initial content
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RectT fullRect = {0, 0, win1->contentW, win1->contentH};
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win1->onPaint(win1, &fullRect);
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}
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// Window 2: Color gradient
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WindowT *win2 = dvxCreateWindow(ctx, "Color Gradient", 200, 100, 280, 250, true);
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if (win2) {
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win2->userData = ctx;
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win2->onPaint = onPaintColor;
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win2->onClose = onCloseCb;
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RectT fullRect = {0, 0, win2->contentW, win2->contentH};
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win2->onPaint(win2, &fullRect);
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}
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// Window 3: Checkerboard pattern with scrollbars
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WindowT *win3 = dvxCreateWindow(ctx, "Pattern", 400, 150, 250, 220, true);
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if (win3) {
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win3->userData = ctx;
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win3->onPaint = onPaintPattern;
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win3->onClose = onCloseCb;
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wmAddVScrollbar(win3, 0, 100, 25);
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wmAddHScrollbar(win3, 0, 100, 25);
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wmUpdateContentRect(win3);
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wmReallocContentBuf(win3, &ctx->display);
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RectT fullRect = {0, 0, win3->contentW, win3->contentH};
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win3->onPaint(win3, &fullRect);
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}
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// Window 4: Widget demo
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WindowT *win4 = dvxCreateWindow(ctx, "Widget Demo", 80, 200, 280, 320, true);
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if (win4) {
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win4->userData = ctx;
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win4->onClose = onCloseCb;
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WidgetT *root = wgtInitWindow(ctx, win4);
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// Status label at top
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WidgetT *status = wgtLabel(root, "Ready.");
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strncpy(status->name, "status", MAX_WIDGET_NAME);
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wgtHSeparator(root);
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// Frame with text input
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WidgetT *frame = wgtFrame(root, "User Input");
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WidgetT *row1 = wgtHBox(frame);
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wgtLabel(row1, "Name:");
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wgtTextInput(row1, 64);
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wgtHSeparator(root);
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// Checkboxes
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wgtCheckbox(root, "Enable feature A");
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wgtCheckbox(root, "Enable feature B");
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wgtHSeparator(root);
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// Radio buttons
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WidgetT *rg = wgtRadioGroup(root);
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wgtRadio(rg, "Option 1");
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wgtRadio(rg, "Option 2");
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wgtRadio(rg, "Option 3");
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wgtHSeparator(root);
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// Button row at bottom
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WidgetT *btnRow = wgtHBox(root);
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btnRow->align = AlignEndE;
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WidgetT *okBtn = wgtButton(btnRow, "OK");
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okBtn->onClick = onOkClick;
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wgtButton(btnRow, "Cancel");
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// Layout and paint now that widget tree is complete
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wgtInvalidate(root);
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}
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}
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// ============================================================
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// main
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// ============================================================
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int main(void) {
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AppContextT ctx;
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printf("DV/X GUI Demo\n");
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printf("Initializing VESA video...\n");
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if (dvxInit(&ctx, 1024, 768, 16) != 0) {
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fprintf(stderr, "Failed to initialize DV/X GUI\n");
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return 1;
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}
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setupWindows(&ctx);
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setupWidgetDemo2(&ctx);
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dvxRun(&ctx);
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dvxShutdown(&ctx);
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printf("DV/X GUI Demo ended.\n");
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return 0;
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}
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