Makefile- button.c
- button.h
- container.c
- container.h
- display.c
- display.h
- dnd.c
- dnd.h
- draw_cairo.c
- draw_cairo.h
- draw_gdk.c
- draw_gdk.h
- entry.c
- entry.h
- graphics.c
- graphics.h
- headerbar.c
- headerbar.h
- icon.c
- icon.h
- image.c
- image.h
- list.c
- list.h
- menu.c
- menu.h
- objs.mk
- range.c
- range.h
- text.c
- text.h
- toolbar.c
- toolbar.h
- toolkit.c
- toolkit.h
- window.c
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2017 Olaf Wintermann. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include "container.h"
#include "draw_cairo.h"
#if GTK_MAJOR_VERSION >= 3
static void ui_drawingarea_draw(
GtkDrawingArea *area,
cairo_t *cr,
int width,
int height,
gpointer data)
{
UiCairoGraphics g;
g.g.width = width;
g.g.height = height;
g.widget = GTK_WIDGET(area);
g.cr = cr;
UiDrawEvent *event = data;
UiEvent ev;
ev.obj = event->obj;
ev.window = event->obj->window;
ev.document = event->obj->ctx->document;
event->callback(&ev, &g.g, event->userdata);
}
#endif
#if UI_GTK3
gboolean ui_drawingarea_expose(GtkWidget *w, cairo_t *cr, void *data) {
int width = gtk_widget_get_allocated_width(w);
int height = gtk_widget_get_allocated_height(w);
ui_drawingarea_draw(GTK_DRAWING_AREA(w), cr, width, height, data);
return FALSE;
}
#endif
#ifdef UI_GTK2
gboolean ui_canvas_expose(GtkWidget *w, GdkEventExpose *e, void *data) {
UiCairoGraphics g;
g.g.width = w->allocation.width;
g.g.height = w->allocation.height;
g.widget = w;
g.cr = gdk_cairo_create(w->window);
UiDrawEvent *event = data;
UiEvent ev;
ev.obj = event->obj;
ev.window = event->obj->window;
ev.document = event->obj->ctx->document;
event->callback(&ev, &g.g, event->userdata);
return FALSE;
}
#endif
// function from graphics.h
void ui_connect_draw_handler(GtkWidget *widget, UiDrawEvent *event) {
#if GTK_MAJOR_VERSION >= 4
gtk_drawing_area_set_draw_func(GTK_DRAWING_AREA(widget), ui_drawingarea_draw, event, NULL);
#elif GTK_MAJOR_VERSION == 3
g_signal_connect(G_OBJECT(widget),
"draw",
G_CALLBACK(ui_drawingarea_expose),
event);
#else
g_signal_connect(G_OBJECT(widget),
"expose_event",
G_CALLBACK(ui_canvas_expose),
event);
#endif
}
PangoContext *ui_get_pango_context(UiGraphics *g) {
UiCairoGraphics *gr = (UiCairoGraphics*)g;
//return gtk_widget_get_pango_context(gr->widget);
return pango_cairo_create_context(gr->cr);
}
// drawing functions
void ui_graphics_color(UiGraphics *g, int red, int green, int blue) {
UiCairoGraphics *gr = (UiCairoGraphics*)g;
double dred = (double)red / (double)255;
double dgreen = (double)green / (double)255;
double dblue = (double)blue / (double)255;
cairo_set_source_rgb(gr->cr, dred, dgreen, dblue);
}
void ui_draw_line(UiGraphics *g, int x1, int y1, int x2, int y2) {
UiCairoGraphics *gr = (UiCairoGraphics*)g;
cairo_set_line_width(gr->cr, 1);
cairo_move_to(gr->cr, (double)x1 + 0.5, (double)y1 + 0.5);
cairo_line_to(gr->cr, (double)x2 + 0.5, (double)y2 + 0.5);
cairo_stroke(gr->cr);
}
void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
UiCairoGraphics *gr = (UiCairoGraphics*)g;
cairo_set_line_width(gr->cr, 1);
cairo_rectangle(gr->cr, x + 0.5, y + 0.5 , w, h);
if(fill) {
cairo_fill(gr->cr);
} else {
cairo_stroke(gr->cr);
}
}
void ui_draw_text(UiGraphics *g, int x, int y, UiTextLayout *text) {
UiCairoGraphics *gr = (UiCairoGraphics*)g;
cairo_move_to(gr->cr, x, y);
pango_cairo_show_layout(gr->cr, text->layout);
}