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Render bar fully with cairo to enable alpha blending

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This commit is contained in:
vaxerski 2021-11-29 22:09:27 +01:00
parent 1a05147c92
commit 565bcd3e5f
2 changed files with 12 additions and 29 deletions
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38
src/bar/Bar.cpp
View file

@ -175,7 +175,7 @@ void CStatusBar::setup(int MonitorID) {
m_iPixmap = xcb_generate_id(g_pWindowManager->DisplayConnection);
xcb_create_pixmap(g_pWindowManager->DisplayConnection, g_pWindowManager->Depth, m_iPixmap, m_iWindowID, m_vecSize.x, m_vecSize.y);
// setup contexts.. ugh..
// setup contexts
auto contextBG = &m_mContexts["BG"];
contextBG->GContext = xcb_generate_id(g_pWindowManager->DisplayConnection);
@ -187,25 +187,6 @@ void CStatusBar::setup(int MonitorID) {
//
//
auto contextBGT = &m_mContexts["BGT"];
contextBGT->GContext = xcb_generate_id(g_pWindowManager->DisplayConnection);
values[0] = 0x00000000;
values[1] = 0x00000000;
xcb_create_gc(g_pWindowManager->DisplayConnection, contextBGT->GContext, m_iPixmap, XCB_GC_BACKGROUND | XCB_GC_FOREGROUND, values);
//
//
auto contextHIGH = &m_mContexts["HIGH"];
contextHIGH->GContext = xcb_generate_id(g_pWindowManager->DisplayConnection);
values[0] = ConfigManager::getInt("bar:col.high");
values[1] = ConfigManager::getInt("bar:col.high");
xcb_create_gc(g_pWindowManager->DisplayConnection, contextHIGH->GContext, m_iPixmap, XCB_GC_BACKGROUND | XCB_GC_FOREGROUND, values);
//
//
m_pCairoSurface = cairo_xcb_surface_create(g_pWindowManager->DisplayConnection, m_iPixmap, g_pWindowManager->VisualType,
m_vecSize.x, m_vecSize.y);
m_pCairo = cairo_create(m_pCairoSurface);
@ -247,6 +228,12 @@ void CStatusBar::drawText(Vector2D pos, std::string text, uint32_t color) {
cairo_show_text(m_pCairo, text.c_str());
}
void CStatusBar::drawCairoRectangle(Vector2D pos, Vector2D size, uint32_t color) {
cairo_set_source_rgba(m_pCairo, RED(color), GREEN(color), BLUE(color), ALPHA(color));
cairo_rectangle(m_pCairo, pos.x, pos.y, size.x, size.y);
cairo_fill(m_pCairo);
}
int CStatusBar::getTextHalfY() {
return m_vecSize.y - (m_vecSize.y - 9) / 2.f;
}
@ -268,10 +255,7 @@ void CStatusBar::draw() {
cairo_restore(m_pCairo);
//
if (ALPHA((uint32_t)ConfigManager::getInt("bar:col.bg")) != 0) {
xcb_rectangle_t rectangles[] = {{(int)0, (int)0, (int)m_vecSize.x, (int)m_vecSize.y}};
xcb_poly_fill_rectangle(g_pWindowManager->DisplayConnection, m_iPixmap, m_mContexts["BG"].GContext, 1, rectangles);
}
drawCairoRectangle(Vector2D(0, 0), m_vecSize, ConfigManager::getInt("bar:col.bg"));
//
//
@ -325,8 +309,7 @@ int CStatusBar::drawWorkspacesModule(SBarModule* mod, int off) {
std::string workspaceName = std::to_string(openWorkspaces[i]);
xcb_rectangle_t rectangleActive[] = {{off + m_vecSize.y * drawnWorkspaces, 0, m_vecSize.y, m_vecSize.y}};
xcb_poly_fill_rectangle(g_pWindowManager->DisplayConnection, m_iPixmap, WORKSPACE == MOUSEWORKSPACEID ? m_mContexts["HIGH"].GContext : m_mContexts["BG"].GContext, 1, rectangleActive);
drawCairoRectangle(Vector2D(off + m_vecSize.y * drawnWorkspaces, 0), Vector2D(m_vecSize.y, m_vecSize.y), WORKSPACE == MOUSEWORKSPACEID ? ConfigManager::getInt("bar:col.high") : ConfigManager::getInt("bar:col.bg"));
drawText(Vector2D(off + m_vecSize.y * drawnWorkspaces + m_vecSize.y / 2.f - getTextWidth(workspaceName) / 2.f, getTextHalfY()),
workspaceName, WORKSPACE == MOUSEWORKSPACEID ? 0xFF111111 : 0xFFFFFFFF);
@ -372,8 +355,7 @@ int CStatusBar::drawModule(SBarModule* mod, int off) {
break;
}
xcb_rectangle_t rects[] = {{ position.x, position.y, MODULEWIDTH, m_vecSize.y }};
xcb_poly_fill_rectangle(g_pWindowManager->DisplayConnection, m_iPixmap, mod->bgcontext, 1, rects);
drawCairoRectangle(position, Vector2D(MODULEWIDTH, m_vecSize.y), mod->bgcolor);
drawText(position + Vector2D(PAD / 2, getTextHalfY()), mod->valueCalculated, mod->color);

3
src/bar/Bar.hpp
View file

@ -28,7 +28,7 @@ struct SBarModule {
uint64_t updateEveryMs;
std::chrono::system_clock::time_point updateLast;
xcb_gcontext_t bgcontext = NULL;
xcb_gcontext_t bgcontext = NULL; // deprecated
// PADS
bool isPad = false;
@ -68,6 +68,7 @@ private:
cairo_t* m_pCairo = nullptr;
void drawText(Vector2D, std::string, uint32_t);
void drawCairoRectangle(Vector2D, Vector2D, uint32_t);
int getTextWidth(std::string);
int drawModule(SBarModule*, int);
int drawWorkspacesModule(SBarModule*, int);