129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
// 17 january 2017
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#include <stdio.h>
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#include <string.h>
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#include "../../ui.h"
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uiWindow *mainwin;
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uiArea *area;
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uiAreaHandler handler;
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const char *text =
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"It is with a kind of fear that I begin to write the history of my life. "
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"I have, as it were, a superstitious hesitation in lifting the veil that "
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"clings about my childhood like a golden mist. The task of writing an "
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"autobiography is a difficult one. When I try to classify my earliest "
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"impressions, I find that fact and fancy look alike across the years that "
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"link the past with the present. The woman paints the child's experiences "
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"in her own fantasy. A few impressions stand out vividly from the first "
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"years of my life; but \"the shadows of the prison-house are on the rest.\" "
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"Besides, many of the joys and sorrows of childhood have lost their "
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"poignancy; and many incidents of vital importance in my early education "
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"have been forgotten in the excitement of great discoveries. In order, "
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"therefore, not to be tedious I shall try to present in a series of "
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"sketches only the episodes that seem to me to be the most interesting "
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"and important."
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"";
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char fontFamily[] = "Palatino";
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// TODO should be const; look at constructor function
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uiDrawFontDescriptor defaultFont = {
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.Family = fontFamily,
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.Size = 18,
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.Weight = uiDrawTextWeightNormal,
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.Italic = uiDrawTextItalicNormal,
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.Stretch = uiDrawTextStretchNormal,
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};
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uiAttributedString *attrstr;
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#define margins 10
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static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *p)
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{
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uiDrawPath *path;
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uiDrawTextLayout *layout;
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path = uiDrawNewPath(uiDrawFillModeWinding);
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uiDrawPathAddRectangle(path, margins, margins,
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p->AreaWidth - 2 * margins,
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p->AreaHeight - 2 * margins);
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uiDrawPathEnd(path);
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uiDrawClip(p->Context, path);
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uiDrawFreePath(path);
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layout = uiDrawNewTextLayout(attrstr,
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&defaultFont,
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p->AreaWidth - 2 * margins);
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uiDrawText(p->Context, layout, margins, margins);
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uiDrawFreeTextLayout(layout);
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}
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static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
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{
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// do nothing
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}
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static void handlerMouseCrossed(uiAreaHandler *ah, uiArea *a, int left)
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{
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// do nothing
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}
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static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
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{
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// do nothing
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}
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static int handlerKeyEvent(uiAreaHandler *ah, uiArea *a, uiAreaKeyEvent *e)
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{
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// reject all keys
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return 0;
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}
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static int onClosing(uiWindow *w, void *data)
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{
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uiControlDestroy(uiControl(mainwin));
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uiQuit();
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return 0;
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}
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static int shouldQuit(void *data)
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{
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uiControlDestroy(uiControl(mainwin));
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return 1;
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}
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int main(void)
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{
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uiInitOptions o;
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const char *err;
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handler.Draw = handlerDraw;
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handler.MouseEvent = handlerMouseEvent;
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handler.MouseCrossed = handlerMouseCrossed;
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handler.DragBroken = handlerDragBroken;
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handler.KeyEvent = handlerKeyEvent;
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memset(&o, 0, sizeof (uiInitOptions));
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err = uiInit(&o);
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if (err != NULL) {
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fprintf(stderr, "error initializing ui: %s\n", err);
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uiFreeInitError(err);
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return 1;
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}
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uiOnShouldQuit(shouldQuit, NULL);
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attrstr = uiNewAttributedString(text);
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mainwin = uiNewWindow("libui Text-Drawing Example", 640, 480, 1);
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uiWindowOnClosing(mainwin, onClosing, NULL);
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area = uiNewArea(&handler);
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// TODO on GTK+ this doesn't get expand properties set properly?
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uiWindowSetChild(mainwin, uiControl(area));
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uiControlShow(uiControl(mainwin));
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uiMain();
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uiFreeAttributedString(attrstr);
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uiUninit();
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return 0;
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}
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