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Start refactoring graphics system to have per-window backing stores.

Browse source 
It was fun for everyone to share a single framebuffer but it was also
kinda really awful. Let's move towards having a "GraphicsBitmap" as the
backing store for each Window.

This is going to need a lot of refactoring so let's get started.
This commit is contained in:
Andreas Kling 2019-01-09 02:06:04 +01:00
parent 2735b7e50d
commit 9963da9005
21 changed files with 212 additions and 41 deletions
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21
Widgets/WindowManager.cpp
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@ -5,6 +5,7 @@
#include "AbstractScreen.h"
#include "TerminalWidget.h"
#include "EventLoop.h"
#include "FrameBufferSDL.h"
extern TerminalWidget* g_tw;
@ -131,6 +132,17 @@ void WindowManager::repaint()
handlePaintEvent(*make<PaintEvent>());
}
void WindowManager::did_paint(Window& window)
{
auto& framebuffer = FrameBufferSDL::the();
framebuffer.blit({ 0, 0 }, *m_rootWidget->backing());
for (auto* window : m_windows) {
ASSERT(window->backing());
framebuffer.blit(window->position(), *window->backing());
}
framebuffer.flush();
}
void WindowManager::removeWindow(Window& window)
{
if (!m_windows.contains(&window))
@ -239,7 +251,6 @@ void WindowManager::processMouseEvent(MouseEvent& event)
return;
}
}
}
void WindowManager::handlePaintEvent(PaintEvent& event)
@ -255,6 +266,14 @@ void WindowManager::handlePaintEvent(PaintEvent& event)
for (auto* window : m_windows)
window->event(event);
auto& framebuffer = FrameBufferSDL::the();
framebuffer.blit({ 0, 0 }, *m_rootWidget->backing());
for (auto* window : m_windows) {
ASSERT(window->backing());
framebuffer.blit(window->position(), *window->backing());
}
framebuffer.flush();
}
void WindowManager::event(Event& event)