David Capello 21ca87862c Add layer blending modes (fix #318)
- Added doc::BlendMode enum and doc::BlendFunc type
- Renamed LayerImage::getBlendMode() -> blendMode()
- BLEND_MODE_COPY is BlendMode::SRC now
- BLEND_MODE_NORMAL is BlendMode::NORMAL now
- Added app::cmd::SetLayerBlendMode
2015-06-13 21:29:16 -03:00

132 lines
3.0 KiB
C++

// Aseprite
// Copyright (C) 2001-2015 David Capello
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gfx/color.h"
#include "ui/intern.h"
#include "ui/system.h"
#include "ui/theme.h"
#include "app/app.h"
#include "app/color_utils.h"
#include "app/console.h"
#include "app/modules/gfx.h"
#include "app/modules/gui.h"
#include "app/modules/palettes.h"
#include "app/ui/editor/editor.h"
#include "app/ui/skin/skin_theme.h"
#include "gfx/point.h"
#include "gfx/rect.h"
#include "doc/image.h"
#include "doc/palette.h"
namespace app {
using namespace app::skin;
using namespace gfx;
static void rectgrid(ui::Graphics* g, const gfx::Rect& rc, const gfx::Size& tile)
{
if (tile.w < 1 || tile.h < 1)
return;
int x, y, u, v;
gfx::Color c1 = gfx::rgba(128, 128, 128);
gfx::Color c2 = gfx::rgba(192, 192, 192);
u = 0;
v = 0;
for (y=rc.y; y<rc.y2()-tile.h; y+=tile.h) {
for (x=rc.x; x<rc.x2()-tile.w; x+=tile.w)
g->fillRect(((u++)&1)? c1: c2, gfx::Rect(x, y, tile.w, tile.h));
if (x < rc.x2())
g->fillRect(((u++)&1)? c1: c2, gfx::Rect(x, y, rc.x2()-x, tile.h));
u = (++v);
}
if (y < rc.y2()) {
for (x=rc.x; x<rc.x2()-tile.w; x+=tile.w)
g->fillRect(((u++)&1)? c1: c2, gfx::Rect(x, y, tile.w, rc.y2()-y));
if (x < rc.x2())
g->fillRect(((u++)&1)? c1: c2, gfx::Rect(x, y, rc.x2()-x, rc.y2()-y));
}
}
static void draw_color(ui::Graphics* g, const Rect& rc, const app::Color& color)
{
if (rc.w < 1 || rc.h < 1)
return;
app::Color::Type type = color.getType();
if (type == app::Color::MaskType) {
rectgrid(g, rc, gfx::Size(rc.w/4, rc.h/2));
return;
}
else if (type == app::Color::IndexType) {
int index = color.getIndex();
if (index >= 0 && index < get_current_palette()->size()) {
g->fillRect(color_utils::color_for_ui(color), rc);
}
else {
g->fillRect(gfx::rgba(0, 0, 0), rc);
g->drawLine(gfx::rgba(255, 255, 255),
gfx::Point(rc.x+rc.w-2, rc.y+1),
gfx::Point(rc.x+1, rc.y+rc.h-2));
}
return;
}
g->fillRect(color_utils::color_for_ui(color), rc);
}
void draw_color_button(ui::Graphics* g,
const Rect& rc, const app::Color& color,
bool hot, bool drag)
{
SkinTheme* theme = (SkinTheme*)ui::CurrentTheme::get();
int scale = ui::guiscale();
// Draw background (the color)
draw_color(g,
Rect(rc.x+1*scale,
rc.y+1*scale,
rc.w-2*scale,
rc.h-2*scale), color);
// Draw opaque border
{
int parts[8] = {
PART_COLORBAR_0_NW,
PART_COLORBAR_0_N,
PART_COLORBAR_1_NE,
PART_COLORBAR_1_E,
PART_COLORBAR_3_SE,
PART_COLORBAR_2_S,
PART_COLORBAR_2_SW,
PART_COLORBAR_0_W
};
theme->draw_bounds_array(g, rc, parts);
}
// Draw hot
if (hot) {
theme->draw_bounds_nw(g,
gfx::Rect(rc.x, rc.y, rc.w, rc.h-1 - 1*scale),
PART_COLORBAR_BORDER_HOTFG_NW);
}
}
} // namespace app